Dec 14 10:14:54.281 INFO testing FreeFull/runt against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 10:14:54.281 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 10:14:54.719 INFO [stdout] 4c7b12cdd1b615c9a226e5b496fb2d2e5bdb1a1991a3e5be1aad094f27c55110
Dec 14 10:14:54.724 INFO running `"docker" "start" "-a" "4c7b12cdd1b615c9a226e5b496fb2d2e5bdb1a1991a3e5be1aad094f27c55110"`
Dec 14 10:14:56.142 INFO [stderr] usermod: no changes
Dec 14 10:14:56.679 INFO [stderr]    Compiling proc-macro2 v0.4.22
Dec 14 10:14:56.691 INFO [stderr]    Compiling procedural-masquerade v0.1.6
Dec 14 10:14:56.691 INFO [stderr]    Compiling thin-slice v0.1.1
Dec 14 10:14:56.691 INFO [stderr]    Compiling servo_arc v0.1.1
Dec 14 10:14:56.691 INFO [stderr]    Compiling dtoa-short v0.3.2
Dec 14 10:14:56.698 INFO [stderr]    Compiling crossbeam-epoch v0.6.1
Dec 14 10:14:56.717 INFO [stderr]    Compiling selectors v0.20.0
Dec 14 10:15:03.431 INFO [stderr]    Compiling crossbeam-deque v0.6.2
Dec 14 10:15:06.399 INFO [stderr]    Compiling quote v0.6.10
Dec 14 10:15:06.411 INFO [stderr]    Compiling tokio-threadpool v0.1.8
Dec 14 10:15:08.140 INFO [stderr]    Compiling syn v0.15.20
Dec 14 10:15:08.140 INFO [stderr]    Compiling string_cache_codegen v0.4.2
Dec 14 10:15:08.140 INFO [stderr]    Compiling syn v0.14.9
Dec 14 10:15:11.722 INFO [stderr]    Compiling tokio-fs v0.1.4
Dec 14 10:15:12.231 INFO [stderr]    Compiling string_cache v0.7.3
Dec 14 10:15:15.155 INFO [stderr]    Compiling tokio v0.1.11
Dec 14 10:15:21.793 INFO [stderr]    Compiling hyper v0.12.14
Dec 14 10:15:39.262 INFO [stderr]    Compiling cssparser v0.24.1
Dec 14 10:15:40.831 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 14 10:15:40.831 INFO [stderr]    Compiling synstructure v0.10.1
Dec 14 10:15:40.831 INFO [stderr]    Compiling html5ever v0.22.5
Dec 14 10:15:40.831 INFO [stderr]    Compiling cssparser-macros v0.3.5
Dec 14 10:15:59.603 INFO [stderr]    Compiling hyper-tls v0.3.1
Dec 14 10:16:04.507 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 14 10:16:17.176 INFO [stderr]    Compiling failure v0.1.3
Dec 14 10:16:22.758 INFO [stderr]    Compiling markup5ever v0.7.3
Dec 14 10:16:35.747 INFO [stderr]    Compiling runt v0.1.0 (/source)
Dec 14 10:16:41.171 INFO [stderr] warning: unused import: `Token`
Dec 14 10:16:41.171 INFO [stderr]  --> src/css/stylesheet/parser.rs:4:65
Dec 14 10:16:41.171 INFO [stderr]   |
Dec 14 10:16:41.171 INFO [stderr] 4 |     QualifiedRuleParser, RuleListParser, SourceLocation, ToCss, Token,
Dec 14 10:16:41.171 INFO [stderr]   |                                                                 ^^^^^
Dec 14 10:16:41.171 INFO [stderr]   |
Dec 14 10:16:41.171 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 10:16:41.171 INFO [stderr] 
Dec 14 10:16:41.671 INFO [stderr] warning: variant is never constructed: `Other`
Dec 14 10:16:41.671 INFO [stderr]   --> src/css/stylesheet/parser.rs:25:5
Dec 14 10:16:41.671 INFO [stderr]    |
Dec 14 10:16:41.671 INFO [stderr] 25 |     Other,
Dec 14 10:16:41.671 INFO [stderr]    |     ^^^^^
Dec 14 10:16:41.671 INFO [stderr]    |
Dec 14 10:16:41.671 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 14 10:16:41.671 INFO [stderr] 
Dec 14 10:16:41.671 INFO [stderr] warning: variant is never constructed: `Has`
Dec 14 10:16:41.671 INFO [stderr]   --> src/css/stylesheet/mod.rs:21:5
Dec 14 10:16:41.671 INFO [stderr]    |
Dec 14 10:16:41.671 INFO [stderr] 21 |     Has { attribute: String },
Dec 14 10:16:41.671 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:16:41.671 INFO [stderr] 
Dec 14 10:16:41.671 INFO [stderr] warning: variant is never constructed: `Equals`
Dec 14 10:16:41.671 INFO [stderr]   --> src/css/stylesheet/mod.rs:22:5
Dec 14 10:16:41.671 INFO [stderr]    |
Dec 14 10:16:41.671 INFO [stderr] 22 |     Equals { attribute: String, value: String },
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `OneOf`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:23:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 23 |     OneOf { attribute: String, value: String },
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `Subcode`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:24:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 24 |     Subcode { attribute: String, value: String },
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `After`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:35:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 35 |     After,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `Backdrop`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:36:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 36 |     Backdrop,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `Before`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:37:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 37 |     Before,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `Cue`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:38:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 38 |     Cue,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `FirstLetter`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:39:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 39 |     FirstLetter,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `FirstLine`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:40:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 40 |     FirstLine,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `GrammarError`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:41:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 41 |     GrammarError,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `Marker`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:42:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 42 |     Marker,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `Placeholder`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:43:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 43 |     Placeholder,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `Selection`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:44:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 44 |     Selection,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `SpellingError`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:45:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 45 |     SpellingError,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `FirstChild`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:76:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 76 |     FirstChild,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^^^^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.672 INFO [stderr] warning: variant is never constructed: `Link`
Dec 14 10:16:41.672 INFO [stderr]   --> src/css/stylesheet/mod.rs:77:5
Dec 14 10:16:41.672 INFO [stderr]    |
Dec 14 10:16:41.672 INFO [stderr] 77 |     Link,
Dec 14 10:16:41.672 INFO [stderr]    |     ^^^^
Dec 14 10:16:41.672 INFO [stderr] 
Dec 14 10:16:41.673 INFO [stderr] warning: variant is never constructed: `Visited`
Dec 14 10:16:41.673 INFO [stderr]   --> src/css/stylesheet/mod.rs:78:5
Dec 14 10:16:41.673 INFO [stderr]    |
Dec 14 10:16:41.673 INFO [stderr] 78 |     Visited,
Dec 14 10:16:41.673 INFO [stderr]    |     ^^^^^^^
Dec 14 10:16:41.673 INFO [stderr] 
Dec 14 10:16:41.673 INFO [stderr] warning: variant is never constructed: `Focus`
Dec 14 10:16:41.673 INFO [stderr]   --> src/css/stylesheet/mod.rs:81:5
Dec 14 10:16:41.673 INFO [stderr]    |
Dec 14 10:16:41.673 INFO [stderr] 81 |     Focus,
Dec 14 10:16:41.673 INFO [stderr]    |     ^^^^^
Dec 14 10:16:41.673 INFO [stderr] 
Dec 14 10:16:41.673 INFO [stderr] warning: variant is never constructed: `Lang`
Dec 14 10:16:41.673 INFO [stderr]   --> src/css/stylesheet/mod.rs:82:5
Dec 14 10:16:41.673 INFO [stderr]    |
Dec 14 10:16:41.673 INFO [stderr] 82 |     Lang(String),
Dec 14 10:16:41.673 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 14 10:16:41.673 INFO [stderr] 
Dec 14 10:16:41.673 INFO [stderr] warning: method is never used: `get`
Dec 14 10:16:41.673 INFO [stderr]   --> src/fetcher/cache/mod.rs:15:5
Dec 14 10:16:41.673 INFO [stderr]    |
Dec 14 10:16:41.673 INFO [stderr] 15 |     pub fn get(&mut self, url: &hyper::Uri) -> Option<CacheItem> {
Dec 14 10:16:41.673 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:16:41.673 INFO [stderr] 
Dec 14 10:16:41.673 INFO [stderr] warning: method is never used: `put`
Dec 14 10:16:41.673 INFO [stderr]   --> src/fetcher/cache/mod.rs:29:5
Dec 14 10:16:41.673 INFO [stderr]    |
Dec 14 10:16:41.673 INFO [stderr] 29 |     pub fn put(&mut self, url: hyper::Uri, item: CacheItem) {
Dec 14 10:16:41.673 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:16:41.673 INFO [stderr] 
Dec 14 10:16:41.673 INFO [stderr] warning: method is never used: `clean_up`
Dec 14 10:16:41.673 INFO [stderr]   --> src/fetcher/cache/mod.rs:34:5
Dec 14 10:16:41.673 INFO [stderr]    |
Dec 14 10:16:41.673 INFO [stderr] 34 |     pub fn clean_up(&mut self) {
Dec 14 10:16:41.673 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:16:41.673 INFO [stderr] 
Dec 14 10:16:41.673 INFO [stderr] warning: method is never used: `new`
Dec 14 10:16:41.673 INFO [stderr]   --> src/fetcher/cache/mod.rs:46:5
Dec 14 10:16:41.673 INFO [stderr]    |
Dec 14 10:16:41.673 INFO [stderr] 46 |     pub fn new(data: Vec<u8>, expiration: ()) -> CacheItem {
Dec 14 10:16:41.673 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:16:41.673 INFO [stderr] 
Dec 14 10:16:41.673 INFO [stderr] warning: method is never used: `expired`
Dec 14 10:16:41.673 INFO [stderr]   --> src/fetcher/cache/mod.rs:54:5
Dec 14 10:16:41.673 INFO [stderr]    |
Dec 14 10:16:41.673 INFO [stderr] 54 |     pub fn expired(&self) -> bool {
Dec 14 10:16:41.673 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:16:41.673 INFO [stderr] 
Dec 14 10:16:59.132 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 02s
Dec 14 10:16:59.166 INFO [stderr] su: No module specific data is present
Dec 14 10:17:00.310 INFO running `"docker" "inspect" "4c7b12cdd1b615c9a226e5b496fb2d2e5bdb1a1991a3e5be1aad094f27c55110"`
Dec 14 10:17:00.649 INFO running `"docker" "rm" "-f" "4c7b12cdd1b615c9a226e5b496fb2d2e5bdb1a1991a3e5be1aad094f27c55110"`
Dec 14 10:17:00.915 INFO [stdout] 4c7b12cdd1b615c9a226e5b496fb2d2e5bdb1a1991a3e5be1aad094f27c55110
Dec 14 10:17:00.919 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 10:17:01.283 INFO [stdout] 4d0e118e10f4ea62d6f916e68bf7ba8ae7d791ca42f1be5afe2f4b467a263876
Dec 14 10:17:01.289 INFO running `"docker" "start" "-a" "4d0e118e10f4ea62d6f916e68bf7ba8ae7d791ca42f1be5afe2f4b467a263876"`
Dec 14 10:17:02.646 INFO [stderr] usermod: no changes
Dec 14 10:17:02.973 INFO [stderr]    Compiling runt v0.1.0 (/source)
Dec 14 10:17:08.250 INFO [stderr] warning: unused import: `Token`
Dec 14 10:17:08.250 INFO [stderr]  --> src/css/stylesheet/parser.rs:4:65
Dec 14 10:17:08.250 INFO [stderr]   |
Dec 14 10:17:08.250 INFO [stderr] 4 |     QualifiedRuleParser, RuleListParser, SourceLocation, ToCss, Token,
Dec 14 10:17:08.250 INFO [stderr]   |                                                                 ^^^^^
Dec 14 10:17:08.250 INFO [stderr]   |
Dec 14 10:17:08.250 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 10:17:08.250 INFO [stderr] 
Dec 14 10:17:08.824 INFO [stderr] warning: variant is never constructed: `Other`
Dec 14 10:17:08.825 INFO [stderr]   --> src/css/stylesheet/parser.rs:25:5
Dec 14 10:17:08.825 INFO [stderr]    |
Dec 14 10:17:08.825 INFO [stderr] 25 |     Other,
Dec 14 10:17:08.826 INFO [stderr]    |     ^^^^^
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `Has`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:21:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 21 |     Has { attribute: String },
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `Equals`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:22:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 22 |     Equals { attribute: String, value: String },
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `OneOf`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:23:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 23 |     OneOf { attribute: String, value: String },
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `Subcode`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:24:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 24 |     Subcode { attribute: String, value: String },
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `After`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:35:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 35 |     After,
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `Backdrop`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:36:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 36 |     Backdrop,
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^^^^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `Before`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:37:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 37 |     Before,
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `Cue`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:38:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 38 |     Cue,
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `FirstLetter`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:39:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 39 |     FirstLetter,
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^^^^^^^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `FirstLine`
Dec 14 10:17:08.827 INFO [stderr]   --> src/css/stylesheet/mod.rs:40:5
Dec 14 10:17:08.827 INFO [stderr]    |
Dec 14 10:17:08.827 INFO [stderr] 40 |     FirstLine,
Dec 14 10:17:08.827 INFO [stderr]    |     ^^^^^^^^^
Dec 14 10:17:08.827 INFO [stderr] 
Dec 14 10:17:08.827 INFO [stderr] warning: variant is never constructed: `GrammarError`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:41:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 41 |     GrammarError,
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: variant is never constructed: `Marker`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:42:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 42 |     Marker,
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: variant is never constructed: `Placeholder`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:43:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 43 |     Placeholder,
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: variant is never constructed: `Selection`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:44:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 44 |     Selection,
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: variant is never constructed: `SpellingError`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:45:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 45 |     SpellingError,
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: variant is never constructed: `FirstChild`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:76:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 76 |     FirstChild,
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: variant is never constructed: `Link`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:77:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 77 |     Link,
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: variant is never constructed: `Visited`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:78:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 78 |     Visited,
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: variant is never constructed: `Focus`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:81:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 81 |     Focus,
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: variant is never constructed: `Lang`
Dec 14 10:17:08.828 INFO [stderr]   --> src/css/stylesheet/mod.rs:82:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 82 |     Lang(String),
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: method is never used: `get`
Dec 14 10:17:08.828 INFO [stderr]   --> src/fetcher/cache/mod.rs:15:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 15 |     pub fn get(&mut self, url: &hyper::Uri) -> Option<CacheItem> {
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: method is never used: `put`
Dec 14 10:17:08.828 INFO [stderr]   --> src/fetcher/cache/mod.rs:29:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 29 |     pub fn put(&mut self, url: hyper::Uri, item: CacheItem) {
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: method is never used: `clean_up`
Dec 14 10:17:08.828 INFO [stderr]   --> src/fetcher/cache/mod.rs:34:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 34 |     pub fn clean_up(&mut self) {
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: method is never used: `new`
Dec 14 10:17:08.828 INFO [stderr]   --> src/fetcher/cache/mod.rs:46:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 46 |     pub fn new(data: Vec<u8>, expiration: ()) -> CacheItem {
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:08.828 INFO [stderr] warning: method is never used: `expired`
Dec 14 10:17:08.828 INFO [stderr]   --> src/fetcher/cache/mod.rs:54:5
Dec 14 10:17:08.828 INFO [stderr]    |
Dec 14 10:17:08.828 INFO [stderr] 54 |     pub fn expired(&self) -> bool {
Dec 14 10:17:08.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 10:17:08.828 INFO [stderr] 
Dec 14 10:17:13.568 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.84s
Dec 14 10:17:13.569 INFO [stderr] su: No module specific data is present
Dec 14 10:17:14.295 INFO running `"docker" "inspect" "4d0e118e10f4ea62d6f916e68bf7ba8ae7d791ca42f1be5afe2f4b467a263876"`
Dec 14 10:17:14.529 INFO running `"docker" "rm" "-f" "4d0e118e10f4ea62d6f916e68bf7ba8ae7d791ca42f1be5afe2f4b467a263876"`
Dec 14 10:17:14.843 INFO [stdout] 4d0e118e10f4ea62d6f916e68bf7ba8ae7d791ca42f1be5afe2f4b467a263876
Dec 14 10:17:14.855 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 10:17:15.299 INFO [stdout] 613a7bb96c33a79bcd2c97e068b333e51c1a067319b14ae38677ec7d215d441f
Dec 14 10:17:15.299 INFO running `"docker" "start" "-a" "613a7bb96c33a79bcd2c97e068b333e51c1a067319b14ae38677ec7d215d441f"`
Dec 14 10:17:16.959 INFO [stderr] usermod: no changes
Dec 14 10:17:17.191 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
Dec 14 10:17:17.211 INFO [stderr]      Running /target/debug/deps/runt-3257b96622a1a7e4
Dec 14 10:17:17.231 INFO [stdout] 
Dec 14 10:17:17.231 INFO [stdout] running 2 tests
Dec 14 10:17:17.243 INFO [stdout] test css::stylesheet::tests::simple_selector ... ok
Dec 14 10:17:17.243 INFO [stdout] test css::stylesheet::tests::universal_selector ... ok
Dec 14 10:17:17.243 INFO [stdout] 
Dec 14 10:17:17.243 INFO [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 10:17:17.243 INFO [stdout] 
Dec 14 10:17:17.247 INFO [stderr] su: No module specific data is present
Dec 14 10:17:18.237 INFO running `"docker" "inspect" "613a7bb96c33a79bcd2c97e068b333e51c1a067319b14ae38677ec7d215d441f"`
Dec 14 10:17:18.631 INFO running `"docker" "rm" "-f" "613a7bb96c33a79bcd2c97e068b333e51c1a067319b14ae38677ec7d215d441f"`
Dec 14 10:17:18.992 INFO [stdout] 613a7bb96c33a79bcd2c97e068b333e51c1a067319b14ae38677ec7d215d441f