[INFO] updating cached repository HarukiUchito/rust_cp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/HarukiUchito/rust_cp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/HarukiUchito/rust_cp" "work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/HarukiUchito/rust_cp"`
[INFO] [stderr] Cloning into 'work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/HarukiUchito/rust_cp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HarukiUchito/rust_cp" "work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/HarukiUchito/rust_cp"`
[INFO] [stderr] Cloning into 'work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/HarukiUchito/rust_cp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f1ecc8bf5bfd6722ec78a62b804a06f55300e09f
[INFO] sha for GitHub repo HarukiUchito/rust_cp: f1ecc8bf5bfd6722ec78a62b804a06f55300e09f
[INFO] validating manifest of HarukiUchito/rust_cp on toolchain master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of HarukiUchito/rust_cp on toolchain try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing HarukiUchito/rust_cp
[INFO] finished frobbing HarukiUchito/rust_cp
[INFO] frobbed toml for HarukiUchito/rust_cp written to work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/HarukiUchito/rust_cp/Cargo.toml
[INFO] started frobbing HarukiUchito/rust_cp
[INFO] finished frobbing HarukiUchito/rust_cp
[INFO] frobbed toml for HarukiUchito/rust_cp written to work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/HarukiUchito/rust_cp/Cargo.toml
[INFO] crate HarukiUchito/rust_cp has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking HarukiUchito/rust_cp against try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0 for pr-57321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57321/worker-6/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/HarukiUchito/rust_cp:/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" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cea277e85a97fabe425e2ae727e08d13d6e8153f238f83fd200e59ca51dd7627
[INFO] running `"docker" "start" "-a" "cea277e85a97fabe425e2ae727e08d13d6e8153f238f83fd200e59ca51dd7627"`
[INFO] [stderr]     Checking competitive_programming v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/main.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut pr = ContestPrinter::new();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/main.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut pr = ContestPrinter::new();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.79s
[INFO] running `"docker" "inspect" "cea277e85a97fabe425e2ae727e08d13d6e8153f238f83fd200e59ca51dd7627"`
[INFO] running `"docker" "rm" "-f" "cea277e85a97fabe425e2ae727e08d13d6e8153f238f83fd200e59ca51dd7627"`
[INFO] [stdout] cea277e85a97fabe425e2ae727e08d13d6e8153f238f83fd200e59ca51dd7627