Dec 17 13:55:46.349 INFO checking terakun/homology_group against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 13:55:46.349 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/terakun/homology_group:/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 13:55:46.967 INFO [stdout] f869dd720938c6a1883613d3078fd4e35cb80a9dde898bad2c5ffb5c3358f2bc
Dec 17 13:55:46.978 INFO running `"docker" "start" "-a" "f869dd720938c6a1883613d3078fd4e35cb80a9dde898bad2c5ffb5c3358f2bc"`
Dec 17 13:55:48.304 INFO [stderr]     Checking libm v0.1.2
Dec 17 13:55:48.316 INFO [stderr]     Checking rand v0.5.5
Dec 17 13:55:48.316 INFO [stderr]     Checking num-complex v0.2.0
Dec 17 13:55:48.316 INFO [stderr]     Checking approx v0.3.0
Dec 17 13:55:48.316 INFO [stderr]     Checking generic-array v0.11.1
Dec 17 13:55:50.364 INFO [stderr]     Checking alga v0.7.2
Dec 17 13:55:50.364 INFO [stderr]     Checking num v0.2.0
Dec 17 13:55:54.468 INFO [stderr]     Checking nalgebra v0.16.4
Dec 17 13:56:25.336 INFO [stderr]     Checking homology_group v0.1.0 (/opt/crater/workdir)
Dec 17 13:56:25.888 INFO [stderr] warning: method is never used: `from_chain`
Dec 17 13:56:25.888 INFO [stderr]    --> src/main.rs:178:5
Dec 17 13:56:25.888 INFO [stderr]     |
Dec 17 13:56:25.888 INFO [stderr] 178 |     fn from_chain(chain: &Chain) -> Self {
Dec 17 13:56:25.888 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:56:25.888 INFO [stderr]     |
Dec 17 13:56:25.888 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 17 13:56:25.888 INFO [stderr] 
Dec 17 13:56:25.996 INFO [stderr] warning: method is never used: `from_chain`
Dec 17 13:56:25.996 INFO [stderr]    --> src/main.rs:178:5
Dec 17 13:56:25.996 INFO [stderr]     |
Dec 17 13:56:25.996 INFO [stderr] 178 |     fn from_chain(chain: &Chain) -> Self {
Dec 17 13:56:25.996 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:56:25.996 INFO [stderr]     |
Dec 17 13:56:25.996 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 17 13:56:25.996 INFO [stderr] 
Dec 17 13:56:26.079 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.86s
Dec 17 13:56:27.457 INFO running `"docker" "inspect" "f869dd720938c6a1883613d3078fd4e35cb80a9dde898bad2c5ffb5c3358f2bc"`
Dec 17 13:56:27.713 INFO running `"docker" "rm" "-f" "f869dd720938c6a1883613d3078fd4e35cb80a9dde898bad2c5ffb5c3358f2bc"`
Dec 17 13:56:27.994 INFO [stdout] f869dd720938c6a1883613d3078fd4e35cb80a9dde898bad2c5ffb5c3358f2bc