Dec 06 02:16:44.579 INFO testing davidbarsky/trace-prototype against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 02:16:44.579 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 02:16:44.757 INFO [stdout] 1f2985a5728d1de02d2e52d595d731247efa87af829eb5177b1137bebd45ae72
Dec 06 02:16:44.760 INFO running `"docker" "start" "-a" "1f2985a5728d1de02d2e52d595d731247efa87af829eb5177b1137bebd45ae72"`
Dec 06 02:16:45.152 INFO [stderr] usermod: no changes
Dec 06 02:16:45.176 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 06 02:16:45.244 INFO [stderr]    Compiling backtrace-sys v0.1.24
Dec 06 02:16:45.245 INFO [stderr]    Compiling crossbeam-deque v0.5.2
Dec 06 02:16:46.005 INFO [stderr]    Compiling crossbeam v0.4.1
Dec 06 02:16:47.369 INFO [stderr]    Compiling backtrace v0.3.9
Dec 06 02:16:48.152 INFO [stderr]    Compiling failure v0.1.2
Dec 06 02:16:48.888 INFO [stderr]    Compiling trace-prototype v0.1.0 (/source)
Dec 06 02:16:50.113 INFO [stderr] warning: unused import: `channel`
Dec 06 02:16:50.113 INFO [stderr]   --> src/main.rs:15:17
Dec 06 02:16:50.113 INFO [stderr]    |
Dec 06 02:16:50.113 INFO [stderr] 15 | use crossbeam::{channel, queue::SegQueue, Receiver, Sender};
Dec 06 02:16:50.113 INFO [stderr]    |                 ^^^^^^^
Dec 06 02:16:50.113 INFO [stderr]    |
Dec 06 02:16:50.113 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 02:16:50.113 INFO [stderr] 
Dec 06 02:16:50.180 INFO [stderr] warning: type alias is never used: `Channels`
Dec 06 02:16:50.180 INFO [stderr]   --> src/main.rs:36:1
Dec 06 02:16:50.180 INFO [stderr]    |
Dec 06 02:16:50.180 INFO [stderr] 36 | type Channels = Vec<(Sender<Span>, Receiver<Span>)>;
Dec 06 02:16:50.180 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 02:16:50.180 INFO [stderr]    |
Dec 06 02:16:50.180 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 06 02:16:50.180 INFO [stderr] 
Dec 06 02:16:50.180 INFO [stderr] warning: struct is never constructed: `Super`
Dec 06 02:16:50.180 INFO [stderr]   --> src/main.rs:37:1
Dec 06 02:16:50.180 INFO [stderr]    |
Dec 06 02:16:50.180 INFO [stderr] 37 | struct Super {
Dec 06 02:16:50.180 INFO [stderr]    | ^^^^^^^^^^^^
Dec 06 02:16:50.180 INFO [stderr] 
Dec 06 02:16:50.180 INFO [stderr] warning: method is never used: `new`
Dec 06 02:16:50.180 INFO [stderr]   --> src/main.rs:43:5
Dec 06 02:16:50.180 INFO [stderr]    |
Dec 06 02:16:50.180 INFO [stderr] 43 |     fn new(queue: SegQueue<Span>, channels: Channels) -> Self {
Dec 06 02:16:50.180 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 02:16:50.180 INFO [stderr] 
Dec 06 02:16:50.719 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.55s
Dec 06 02:16:50.728 INFO [stderr] su: No module specific data is present
Dec 06 02:16:51.310 INFO running `"docker" "inspect" "1f2985a5728d1de02d2e52d595d731247efa87af829eb5177b1137bebd45ae72"`
Dec 06 02:16:51.520 INFO running `"docker" "rm" "-f" "1f2985a5728d1de02d2e52d595d731247efa87af829eb5177b1137bebd45ae72"`
Dec 06 02:16:51.844 INFO [stdout] 1f2985a5728d1de02d2e52d595d731247efa87af829eb5177b1137bebd45ae72
Dec 06 02:16:51.846 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 02:16:52.272 INFO [stdout] 4bb338d887e18401cc240d18c20baee9307d14e040855bc81f6ff229803dc9d9
Dec 06 02:16:52.274 INFO running `"docker" "start" "-a" "4bb338d887e18401cc240d18c20baee9307d14e040855bc81f6ff229803dc9d9"`
Dec 06 02:16:53.069 INFO [stderr] usermod: no changes
Dec 06 02:16:53.103 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 06 02:16:53.164 INFO [stderr]    Compiling trace-prototype v0.1.0 (/source)
Dec 06 02:16:54.516 INFO [stderr] warning: unused import: `channel`
Dec 06 02:16:54.516 INFO [stderr]   --> src/main.rs:15:17
Dec 06 02:16:54.516 INFO [stderr]    |
Dec 06 02:16:54.516 INFO [stderr] 15 | use crossbeam::{channel, queue::SegQueue, Receiver, Sender};
Dec 06 02:16:54.516 INFO [stderr]    |                 ^^^^^^^
Dec 06 02:16:54.516 INFO [stderr]    |
Dec 06 02:16:54.516 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 02:16:54.516 INFO [stderr] 
Dec 06 02:16:54.574 INFO [stderr] warning: type alias is never used: `Channels`
Dec 06 02:16:54.574 INFO [stderr]   --> src/main.rs:36:1
Dec 06 02:16:54.574 INFO [stderr]    |
Dec 06 02:16:54.574 INFO [stderr] 36 | type Channels = Vec<(Sender<Span>, Receiver<Span>)>;
Dec 06 02:16:54.574 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 02:16:54.574 INFO [stderr]    |
Dec 06 02:16:54.574 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 06 02:16:54.574 INFO [stderr] 
Dec 06 02:16:54.574 INFO [stderr] warning: struct is never constructed: `Super`
Dec 06 02:16:54.574 INFO [stderr]   --> src/main.rs:37:1
Dec 06 02:16:54.574 INFO [stderr]    |
Dec 06 02:16:54.574 INFO [stderr] 37 | struct Super {
Dec 06 02:16:54.574 INFO [stderr]    | ^^^^^^^^^^^^
Dec 06 02:16:54.574 INFO [stderr] 
Dec 06 02:16:54.574 INFO [stderr] warning: method is never used: `new`
Dec 06 02:16:54.574 INFO [stderr]   --> src/main.rs:43:5
Dec 06 02:16:54.574 INFO [stderr]    |
Dec 06 02:16:54.574 INFO [stderr] 43 |     fn new(queue: SegQueue<Span>, channels: Channels) -> Self {
Dec 06 02:16:54.574 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 02:16:54.574 INFO [stderr] 
Dec 06 02:16:55.188 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.09s
Dec 06 02:16:55.188 INFO [stderr] su: No module specific data is present
Dec 06 02:16:55.654 INFO running `"docker" "inspect" "4bb338d887e18401cc240d18c20baee9307d14e040855bc81f6ff229803dc9d9"`
Dec 06 02:16:55.854 INFO running `"docker" "rm" "-f" "4bb338d887e18401cc240d18c20baee9307d14e040855bc81f6ff229803dc9d9"`
Dec 06 02:16:56.090 INFO [stdout] 4bb338d887e18401cc240d18c20baee9307d14e040855bc81f6ff229803dc9d9
Dec 06 02:16:56.096 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 02:16:56.456 INFO [stdout] 618dc984c53cbc0016d6e9ea69de18925b9e986bfc28e976b3c5e6cf1a9f4af4
Dec 06 02:16:56.458 INFO running `"docker" "start" "-a" "618dc984c53cbc0016d6e9ea69de18925b9e986bfc28e976b3c5e6cf1a9f4af4"`
Dec 06 02:16:57.616 INFO [stderr] usermod: no changes
Dec 06 02:16:57.652 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 06 02:16:57.713 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
Dec 06 02:16:57.715 INFO [stderr]      Running /target/debug/deps/trace_prototype-c8e516ead4e46ecf
Dec 06 02:16:57.720 INFO [stderr] su: No module specific data is present
Dec 06 02:16:57.720 INFO [stdout] 
Dec 06 02:16:57.720 INFO [stdout] running 0 tests
Dec 06 02:16:57.720 INFO [stdout] 
Dec 06 02:16:57.720 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 02:16:57.720 INFO [stdout] 
Dec 06 02:16:58.807 INFO running `"docker" "inspect" "618dc984c53cbc0016d6e9ea69de18925b9e986bfc28e976b3c5e6cf1a9f4af4"`
Dec 06 02:16:58.984 INFO running `"docker" "rm" "-f" "618dc984c53cbc0016d6e9ea69de18925b9e986bfc28e976b3c5e6cf1a9f4af4"`
Dec 06 02:16:59.215 INFO [stdout] 618dc984c53cbc0016d6e9ea69de18925b9e986bfc28e976b3c5e6cf1a9f4af4