ICE when using generic newtypes cross-crate #9155

Closed
#9697
Closed
ICE when using generic newtypes cross-crate#9155
#9697
Labels
E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.

Description

@sfackler
sfackler
opened on Sep 13, 2013

Turns out it's impossible to use generic newtypes across crates:

test.rs:

pubstructFoo<T>(T);impl<T>Foo<T>{pubfnnew(t:T) -> Foo<T>{Foo(t)}}

test2.rs:

externmod test;use test::{Foo};structBaz;fnmain(){Foo::new(Baz);}
~ ❯ env RUST_LOG=rustc=1 rustc -L. test2.rs
task <unnamed> failed at 'assertion failed: `(left == right) && (right == left)` (left: `2`, right: `0`)', /build/rust-git/src/rust/src/librustc/middle/trans/callee.rs:385
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1 to get further details and report the results to github.com/mozilla/rust/issues
task <unnamed> failed at 'explicit failure', /build/rust-git/src/rust/src/librustc/rustc.rs:377

This makes it impossible to use std::rt::io::buffered::BufferedStream.

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      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
       blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

      Skip to content
      ICE when using generic newtypes cross-crate #9155
      Closed
      #9697
      Closed
      ICE when using generic newtypes cross-crate#9155
      #9697
      Labels
      E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
      Description
      @sfackler
      sfackler
      opened on Sep 13, 2013
      Turns out it's impossible to use generic newtypes across crates:
      test.rs:
      pubstructFoo<T>(T);impl<T>Foo<T>{pubfnnew(t:T) -> Foo<T>{Foo(t)}}
      test2.rs:
      externmod test;use test::{Foo};structBaz;fnmain(){Foo::new(Baz);}
      ~ ❯ env RUST_LOG=rustc=1 rustc -L. test2.rs
task <unnamed> failed at 'assertion failed: `(left == right) && (right == left)` (left: `2`, right: `0`)', /build/rust-git/src/rust/src/librustc/middle/trans/callee.rs:385
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1 to get further details and report the results to github.com/mozilla/rust/issues
task <unnamed> failed at 'explicit failure', /build/rust-git/src/rust/src/librustc/rustc.rs:377

      This makes it impossible to use std::rt::io::buffered::BufferedStream.
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          No milestone
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          None yet
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

          Skip to content
          ICE when using generic newtypes cross-crate #9155
          Closed
          #9697
          Closed
          ICE when using generic newtypes cross-crate#9155
          #9697
          Labels
          E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
          Description
          @sfackler
          sfackler
          opened on Sep 13, 2013
          Turns out it's impossible to use generic newtypes across crates:
          test.rs:
          pubstructFoo<T>(T);impl<T>Foo<T>{pubfnnew(t:T) -> Foo<T>{Foo(t)}}
          test2.rs:
          externmod test;use test::{Foo};structBaz;fnmain(){Foo::new(Baz);}
          ~ ❯ env RUST_LOG=rustc=1 rustc -L. test2.rs
task <unnamed> failed at 'assertion failed: `(left == right) && (right == left)` (left: `2`, right: `0`)', /build/rust-git/src/rust/src/librustc/middle/trans/callee.rs:385
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1 to get further details and report the results to github.com/mozilla/rust/issues
task <unnamed> failed at 'explicit failure', /build/rust-git/src/rust/src/librustc/rustc.rs:377

          This makes it impossible to use std::rt::io::buffered::BufferedStream.
          Metadata
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            Labels
            E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
            Type
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              No milestone
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              None yet
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              ICE when using generic newtypes cross-crate #9155
              Closed
              #9697
              Closed
              ICE when using generic newtypes cross-crate#9155
              #9697
              Labels
              E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
              Description
              @sfackler
              sfackler
              opened on Sep 13, 2013
              Turns out it's impossible to use generic newtypes across crates:
              test.rs:
              pubstructFoo<T>(T);impl<T>Foo<T>{pubfnnew(t:T) -> Foo<T>{Foo(t)}}
              test2.rs:
              externmod test;use test::{Foo};structBaz;fnmain(){Foo::new(Baz);}
              ~ ❯ env RUST_LOG=rustc=1 rustc -L. test2.rs
task <unnamed> failed at 'assertion failed: `(left == right) && (right == left)` (left: `2`, right: `0`)', /build/rust-git/src/rust/src/librustc/middle/trans/callee.rs:385
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1 to get further details and report the results to github.com/mozilla/rust/issues
task <unnamed> failed at 'explicit failure', /build/rust-git/src/rust/src/librustc/rustc.rs:377

              This makes it impossible to use std::rt::io::buffered::BufferedStream.
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                Labels
                E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
                Type
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                  No milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

                  Skip to content
                  ICE when using generic newtypes cross-crate #9155
                  Closed
                  #9697
                  Closed
                  ICE when using generic newtypes cross-crate#9155
                  #9697
                  Labels
                  E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
                  Description
                  @sfackler
                  sfackler
                  opened on Sep 13, 2013
                  Turns out it's impossible to use generic newtypes across crates:
                  test.rs:
                  pubstructFoo<T>(T);impl<T>Foo<T>{pubfnnew(t:T) -> Foo<T>{Foo(t)}}
                  test2.rs:
                  externmod test;use test::{Foo};structBaz;fnmain(){Foo::new(Baz);}
                  ~ ❯ env RUST_LOG=rustc=1 rustc -L. test2.rs
task <unnamed> failed at 'assertion failed: `(left == right) && (right == left)` (left: `2`, right: `0`)', /build/rust-git/src/rust/src/librustc/middle/trans/callee.rs:385
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1 to get further details and report the results to github.com/mozilla/rust/issues
task <unnamed> failed at 'explicit failure', /build/rust-git/src/rust/src/librustc/rustc.rs:377

                  This makes it impossible to use std::rt::io::buffered::BufferedStream.
                  Metadata
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                  No one assigned
                    Labels
                    E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
                    Type
                    No type
                    Projects
                    No projects
                      Milestone
                      No milestone
                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                      Skip to content
                      ICE when using generic newtypes cross-crate #9155
                      Closed
                      #9697
                      Closed
                      ICE when using generic newtypes cross-crate#9155
                      #9697
                      Labels
                      E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
                      Description
                      @sfackler
                      sfackler
                      opened on Sep 13, 2013
                      Turns out it's impossible to use generic newtypes across crates:
                      test.rs:
                      pubstructFoo<T>(T);impl<T>Foo<T>{pubfnnew(t:T) -> Foo<T>{Foo(t)}}
                      test2.rs:
                      externmod test;use test::{Foo};structBaz;fnmain(){Foo::new(Baz);}
                      ~ ❯ env RUST_LOG=rustc=1 rustc -L. test2.rs
task <unnamed> failed at 'assertion failed: `(left == right) && (right == left)` (left: `2`, right: `0`)', /build/rust-git/src/rust/src/librustc/middle/trans/callee.rs:385
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1 to get further details and report the results to github.com/mozilla/rust/issues
task <unnamed> failed at 'explicit failure', /build/rust-git/src/rust/src/librustc/rustc.rs:377

                      This makes it impossible to use std::rt::io::buffered::BufferedStream.
                      Metadata
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                      No one assigned
                        Labels
                        E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
                        Type
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                          No milestone
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                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                          Skip to content
                          ICE when using generic newtypes cross-crate #9155
                          Closed
                          #9697
                          Closed
                          ICE when using generic newtypes cross-crate#9155
                          #9697
                          Labels
                          E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
                          Description
                          @sfackler
                          sfackler
                          opened on Sep 13, 2013
                          Turns out it's impossible to use generic newtypes across crates:
                          test.rs:
                          pubstructFoo<T>(T);impl<T>Foo<T>{pubfnnew(t:T) -> Foo<T>{Foo(t)}}
                          test2.rs:
                          externmod test;use test::{Foo};structBaz;fnmain(){Foo::new(Baz);}
                          ~ ❯ env RUST_LOG=rustc=1 rustc -L. test2.rs
task <unnamed> failed at 'assertion failed: `(left == right) && (right == left)` (left: `2`, right: `0`)', /build/rust-git/src/rust/src/librustc/middle/trans/callee.rs:385
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1 to get further details and report the results to github.com/mozilla/rust/issues
task <unnamed> failed at 'explicit failure', /build/rust-git/src/rust/src/librustc/rustc.rs:377

                          This makes it impossible to use std::rt::io::buffered::BufferedStream.
                          Metadata
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                          Assignees
                          No one assigned
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                            E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
                            Type
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                            No projects
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                              No milestone
                              Relationships
                              None yet
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                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

                              Skip to content
                              ICE when using generic newtypes cross-crate #9155
                              Closed
                              #9697
                              Closed
                              ICE when using generic newtypes cross-crate#9155
                              #9697
                              Labels
                              E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
                              Description
                              @sfackler
                              sfackler
                              opened on Sep 13, 2013
                              Turns out it's impossible to use generic newtypes across crates:
                              test.rs:
                              pubstructFoo<T>(T);impl<T>Foo<T>{pubfnnew(t:T) -> Foo<T>{Foo(t)}}
                              test2.rs:
                              externmod test;use test::{Foo};structBaz;fnmain(){Foo::new(Baz);}
                              ~ ❯ env RUST_LOG=rustc=1 rustc -L. test2.rs
task <unnamed> failed at 'assertion failed: `(left == right) && (right == left)` (left: `2`, right: `0`)', /build/rust-git/src/rust/src/librustc/middle/trans/callee.rs:385
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1 to get further details and report the results to github.com/mozilla/rust/issues
task <unnamed> failed at 'explicit failure', /build/rust-git/src/rust/src/librustc/rustc.rs:377

                              This makes it impossible to use std::rt::io::buffered::BufferedStream.
                              Metadata
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                              Assignees
                              No one assigned
                                Labels
                                E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.
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                                No projects
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                                  No milestone
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                                  None yet
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                                  No branches or pull requests
                                  Issue actions