[INFO] cloning repository CJTozer/rust_play
[INFO] running `"git" "clone" "--bare" "git://github.com/CJTozer/rust_play.git" "work/cache/sources/gh/CJTozer/rust_play"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/CJTozer/rust_play'...
[INFO] running `"git" "clone" "work/cache/sources/gh/CJTozer/rust_play" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/CJTozer/rust_play"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/CJTozer/rust_play'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CJTozer/rust_play" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/CJTozer/rust_play"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/CJTozer/rust_play'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7791eb1a592913ed726e43c1ad9a35e855d42fc
[INFO] sha for GitHub repo CJTozer/rust_play: b7791eb1a592913ed726e43c1ad9a35e855d42fc
[INFO] validating manifest of CJTozer/rust_play on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of CJTozer/rust_play on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing CJTozer/rust_play
[INFO] finished frobbing CJTozer/rust_play
[INFO] frobbed toml for CJTozer/rust_play written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/CJTozer/rust_play/Cargo.toml
[INFO] started frobbing CJTozer/rust_play
[INFO] finished frobbing CJTozer/rust_play
[INFO] frobbed toml for CJTozer/rust_play written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/CJTozer/rust_play/Cargo.toml
[INFO] crate CJTozer/rust_play has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking CJTozer/rust_play against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-1/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/CJTozer/rust_play:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ff6e46008dd185f789a5615910ba4b2df8adf44890929853e0de9105fcc9e2dc
[INFO] running `"docker" "start" "-a" "ff6e46008dd185f789a5615910ba4b2df8adf44890929853e0de9105fcc9e2dc"`
[INFO] [stderr]     Checking timer v0.1.6
[INFO] [stderr]     Checking rusttest v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `DummyWatcher`
[INFO] [stderr]   --> src/main.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 DummyWatcher => Box::new(DummyWatcher::new(tx)),
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_DummyWatcher`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `DummyWatcher`
[INFO] [stderr]   --> src/main.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 DummyWatcher => Box::new(DummyWatcher::new(tx)),
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_DummyWatcher`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Failed`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Failed,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `DummyWatcher` should have a snake case name
[INFO] [stderr]   --> src/main.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 DummyWatcher => Box::new(DummyWatcher::new(tx)),
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: convert the identifier to snake case: `dummy_watcher`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Failed`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Failed,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `DummyWatcher` should have a snake case name
[INFO] [stderr]   --> src/main.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 DummyWatcher => Box::new(DummyWatcher::new(tx)),
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: convert the identifier to snake case: `dummy_watcher`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `"docker" "inspect" "ff6e46008dd185f789a5615910ba4b2df8adf44890929853e0de9105fcc9e2dc"`
[INFO] running `"docker" "rm" "-f" "ff6e46008dd185f789a5615910ba4b2df8adf44890929853e0de9105fcc9e2dc"`
[INFO] [stdout] ff6e46008dd185f789a5615910ba4b2df8adf44890929853e0de9105fcc9e2dc