[INFO] cloning repository Nobuyuki-Tokuchi/cent_rust
[INFO] running `"git" "clone" "--bare" "git://github.com/Nobuyuki-Tokuchi/cent_rust.git" "work/cache/sources/gh/Nobuyuki-Tokuchi/cent_rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Nobuyuki-Tokuchi/cent_rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/Nobuyuki-Tokuchi/cent_rust" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Nobuyuki-Tokuchi/cent_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Nobuyuki-Tokuchi/cent_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Nobuyuki-Tokuchi/cent_rust" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Nobuyuki-Tokuchi/cent_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Nobuyuki-Tokuchi/cent_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 45872c159b0064bda839464ee4f63fd66b839767
[INFO] sha for GitHub repo Nobuyuki-Tokuchi/cent_rust: 45872c159b0064bda839464ee4f63fd66b839767
[INFO] validating manifest of Nobuyuki-Tokuchi/cent_rust on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Nobuyuki-Tokuchi/cent_rust on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Nobuyuki-Tokuchi/cent_rust
[INFO] finished frobbing Nobuyuki-Tokuchi/cent_rust
[INFO] frobbed toml for Nobuyuki-Tokuchi/cent_rust written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Nobuyuki-Tokuchi/cent_rust/Cargo.toml
[INFO] started frobbing Nobuyuki-Tokuchi/cent_rust
[INFO] finished frobbing Nobuyuki-Tokuchi/cent_rust
[INFO] frobbed toml for Nobuyuki-Tokuchi/cent_rust written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Nobuyuki-Tokuchi/cent_rust/Cargo.toml
[INFO] crate Nobuyuki-Tokuchi/cent_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Nobuyuki-Tokuchi/cent_rust against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Nobuyuki-Tokuchi/cent_rust:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 34e732ff08e2ac2ed698f3e7efe6f2edc237101675e48eddf16f51caf6a180db
[INFO] running `"docker" "start" "-a" "34e732ff08e2ac2ed698f3e7efe6f2edc237101675e48eddf16f51caf6a180db"`
[INFO] [stderr]    Compiling cent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cent/sh2003lk.rs:165:17
[INFO] [stderr]     |
[INFO] [stderr] 165 |             let mut count = state.label_count.get_mut(operation.as_str()).unwrap();
[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/cent/sh2003lk.rs:187:17
[INFO] [stderr]     |
[INFO] [stderr] 187 |             let mut count = state.label_count.get_mut(operation.as_str()).unwrap();
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cent/sh2003lk.rs:227:17
[INFO] [stderr]     |
[INFO] [stderr] 227 |             let mut count = state.label_count.get_mut(operation.as_str()).unwrap();
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `"docker" "inspect" "34e732ff08e2ac2ed698f3e7efe6f2edc237101675e48eddf16f51caf6a180db"`
[INFO] running `"docker" "rm" "-f" "34e732ff08e2ac2ed698f3e7efe6f2edc237101675e48eddf16f51caf6a180db"`
[INFO] [stdout] 34e732ff08e2ac2ed698f3e7efe6f2edc237101675e48eddf16f51caf6a180db
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Nobuyuki-Tokuchi/cent_rust:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 673905fac2a59eba00fce760c7f5509d9eb31a27d10ea8c5c812b2d72561b84b
[INFO] running `"docker" "start" "-a" "673905fac2a59eba00fce760c7f5509d9eb31a27d10ea8c5c812b2d72561b84b"`
[INFO] [stderr]    Compiling cent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cent/sh2003lk.rs:165:17
[INFO] [stderr]     |
[INFO] [stderr] 165 |             let mut count = state.label_count.get_mut(operation.as_str()).unwrap();
[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/cent/sh2003lk.rs:187:17
[INFO] [stderr]     |
[INFO] [stderr] 187 |             let mut count = state.label_count.get_mut(operation.as_str()).unwrap();
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cent/sh2003lk.rs:227:17
[INFO] [stderr]     |
[INFO] [stderr] 227 |             let mut count = state.label_count.get_mut(operation.as_str()).unwrap();
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "673905fac2a59eba00fce760c7f5509d9eb31a27d10ea8c5c812b2d72561b84b"`
[INFO] running `"docker" "rm" "-f" "673905fac2a59eba00fce760c7f5509d9eb31a27d10ea8c5c812b2d72561b84b"`
[INFO] [stdout] 673905fac2a59eba00fce760c7f5509d9eb31a27d10ea8c5c812b2d72561b84b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Nobuyuki-Tokuchi/cent_rust:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] a594dae8393aa69afdab068dfe4bab953c1ba7164f58a0a72c95e7e8d86a1182
[INFO] running `"docker" "start" "-a" "a594dae8393aa69afdab068dfe4bab953c1ba7164f58a0a72c95e7e8d86a1182"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cent-f086c4dadfd09e60
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a594dae8393aa69afdab068dfe4bab953c1ba7164f58a0a72c95e7e8d86a1182"`
[INFO] running `"docker" "rm" "-f" "a594dae8393aa69afdab068dfe4bab953c1ba7164f58a0a72c95e7e8d86a1182"`
[INFO] [stdout] a594dae8393aa69afdab068dfe4bab953c1ba7164f58a0a72c95e7e8d86a1182