Dec 17 17:54:12.897 INFO checking phyber/cyd against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 17:54:12.897 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/phyber/cyd:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 17:54:13.292 INFO [stdout] 29757b4da51d5ddec041d9e7edcad12b53321359c558bcaacc90ab36dc8fb095
Dec 17 17:54:13.294 INFO running `"docker" "start" "-a" "29757b4da51d5ddec041d9e7edcad12b53321359c558bcaacc90ab36dc8fb095"`
Dec 17 17:54:14.443 INFO [stderr]     Checking yaml-rust v0.4.2
Dec 17 17:54:15.277 INFO [stderr]     Checking serde_yaml v0.8.8
Dec 17 17:54:16.404 INFO [stderr]     Checking cyd v0.1.0 (/opt/crater/workdir)
Dec 17 17:54:16.950 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 17:54:16.950 INFO [stderr]   --> src/main.rs:57:17
Dec 17 17:54:16.950 INFO [stderr]    |
Dec 17 17:54:16.950 INFO [stderr] 57 |                 write!(out, "{}", s);
Dec 17 17:54:16.950 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:54:16.950 INFO [stderr]    |
Dec 17 17:54:16.950 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 17:54:16.950 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 17:54:16.950 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 17 17:54:16.950 INFO [stderr] 
Dec 17 17:54:16.980 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 17:54:16.980 INFO [stderr]   --> src/main.rs:57:17
Dec 17 17:54:16.980 INFO [stderr]    |
Dec 17 17:54:16.980 INFO [stderr] 57 |                 write!(out, "{}", s);
Dec 17 17:54:16.980 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:54:16.980 INFO [stderr]    |
Dec 17 17:54:16.980 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 17:54:16.980 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 17:54:16.980 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 17 17:54:16.980 INFO [stderr] 
Dec 17 17:54:17.020 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.67s
Dec 17 17:54:17.630 INFO running `"docker" "inspect" "29757b4da51d5ddec041d9e7edcad12b53321359c558bcaacc90ab36dc8fb095"`
Dec 17 17:54:18.036 INFO running `"docker" "rm" "-f" "29757b4da51d5ddec041d9e7edcad12b53321359c558bcaacc90ab36dc8fb095"`
Dec 17 17:54:18.332 INFO [stdout] 29757b4da51d5ddec041d9e7edcad12b53321359c558bcaacc90ab36dc8fb095