[INFO] cloning repository https://github.com/sjsyrek/cormen-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjsyrek/cormen-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjsyrek%2Fcormen-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjsyrek%2Fcormen-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d48e3c79004cd805bba4e3ec5c971b1448de5f9
[INFO] checking sjsyrek/cormen-rust against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjsyrek%2Fcormen-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sjsyrek/cormen-rust on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sjsyrek/cormen-rust
[INFO] finished tweaking git repo https://github.com/sjsyrek/cormen-rust
[INFO] tweaked toml for git repo https://github.com/sjsyrek/cormen-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sjsyrek/cormen-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 994ca46d893b7392bd8ed95b72a3443fc78f56c9882b7e8ca5b70b5a899ca9a0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "994ca46d893b7392bd8ed95b72a3443fc78f56c9882b7e8ca5b70b5a899ca9a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "994ca46d893b7392bd8ed95b72a3443fc78f56c9882b7e8ca5b70b5a899ca9a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994ca46d893b7392bd8ed95b72a3443fc78f56c9882b7e8ca5b70b5a899ca9a0", kill_on_drop: false }`
[INFO] [stdout] 994ca46d893b7392bd8ed95b72a3443fc78f56c9882b7e8ca5b70b5a899ca9a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4aa79eb0147c007efdb5081097cecaaf01d7845a44ff2a98db744f37a9c7e5ed
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4aa79eb0147c007efdb5081097cecaaf01d7845a44ff2a98db744f37a9c7e5ed", kill_on_drop: false }`
[INFO] [stderr]     Checking cormen_rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/sorts/merge_sort.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut left: Vec<isize> = vec![0; (n1 + 1)];
[INFO] [stdout]    |                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/sorts/merge_sort.rs:15:41
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut right: Vec<isize> = vec![0; (n2 + 1)];
[INFO] [stdout]    |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/utils.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 |     "[".to_string() + &s.trim_right_matches(", ").to_string() + "]"
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/sorts/merge_sort.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut left: Vec<isize> = vec![0; (n1 + 1)];
[INFO] [stdout]    |                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/sorts/merge_sort.rs:15:41
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut right: Vec<isize> = vec![0; (n2 + 1)];
[INFO] [stdout]    |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/utils.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 |     "[".to_string() + &s.trim_right_matches(", ").to_string() + "]"
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "4aa79eb0147c007efdb5081097cecaaf01d7845a44ff2a98db744f37a9c7e5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aa79eb0147c007efdb5081097cecaaf01d7845a44ff2a98db744f37a9c7e5ed", kill_on_drop: false }`
[INFO] [stdout] 4aa79eb0147c007efdb5081097cecaaf01d7845a44ff2a98db744f37a9c7e5ed