[INFO] fetching crate cauly-rust-leetcode-utils 0.1.1...
[INFO] testing cauly-rust-leetcode-utils-0.1.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate cauly-rust-leetcode-utils 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate cauly-rust-leetcode-utils 0.1.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cauly-rust-leetcode-utils 0.1.1
[INFO] finished tweaking crates.io crate cauly-rust-leetcode-utils 0.1.1
[INFO] tweaked toml for crates.io crate cauly-rust-leetcode-utils 0.1.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e9ea7aae1e83e14d5555b66d6e2635549a1eed5929724b22f66de747a57f900
[INFO] running `Command { std: "docker" "start" "-a" "4e9ea7aae1e83e14d5555b66d6e2635549a1eed5929724b22f66de747a57f900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e9ea7aae1e83e14d5555b66d6e2635549a1eed5929724b22f66de747a57f900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e9ea7aae1e83e14d5555b66d6e2635549a1eed5929724b22f66de747a57f900", kill_on_drop: false }`
[INFO] [stdout] 4e9ea7aae1e83e14d5555b66d6e2635549a1eed5929724b22f66de747a57f900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f859b782b0b250f328585df84fe22cda15c7db81816ceb9f8045c3012e164d4
[INFO] running `Command { std: "docker" "start" "-a" "5f859b782b0b250f328585df84fe22cda15c7db81816ceb9f8045c3012e164d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cauly-rust-leetcode-utils v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/rlfmt.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut filename;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "5f859b782b0b250f328585df84fe22cda15c7db81816ceb9f8045c3012e164d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f859b782b0b250f328585df84fe22cda15c7db81816ceb9f8045c3012e164d4", kill_on_drop: false }`
[INFO] [stdout] 5f859b782b0b250f328585df84fe22cda15c7db81816ceb9f8045c3012e164d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ac6d47a7427bc6339cfb485ae2e31f4b4525de1a9df1bd2099a5c1fc51b037f
[INFO] running `Command { std: "docker" "start" "-a" "5ac6d47a7427bc6339cfb485ae2e31f4b4525de1a9df1bd2099a5c1fc51b037f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cauly-rust-leetcode-utils v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/rlfmt.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut filename;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/rlfmt.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut filename;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "5ac6d47a7427bc6339cfb485ae2e31f4b4525de1a9df1bd2099a5c1fc51b037f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ac6d47a7427bc6339cfb485ae2e31f4b4525de1a9df1bd2099a5c1fc51b037f", kill_on_drop: false }`
[INFO] [stdout] 5ac6d47a7427bc6339cfb485ae2e31f4b4525de1a9df1bd2099a5c1fc51b037f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f517118e1c8555b8d21cd6d05af93ff74823469a709c934607cd3bf2654d24d2
[INFO] running `Command { std: "docker" "start" "-a" "f517118e1c8555b8d21cd6d05af93ff74823469a709c934607cd3bf2654d24d2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/bin/rlfmt.rs:20:9
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 20 |     let mut filename;
[INFO] [stdout] 
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |         |
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] running 8 tests
[INFO] [stderr] 
[INFO] [stdout] test test2 ... ok
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] test test1 ... ok
[INFO] [stderr]   --> src/bin/rlfmt.rs:20:9
[INFO] [stdout] test test5 ... ok
[INFO] [stderr]    |
[INFO] [stdout] test test4 ... ok
[INFO] [stderr] 20 |     let mut filename;
[INFO] [stdout] test test3 ... ok
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cauly_rust_leetcode_utils-bc65b7034cd6d367)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rlfmt-2299b07817962955)
[INFO] [stderr]      Running tests/binary_tree.rs (/opt/rustwide/target/debug/deps/binary_tree-27bb563bd23b4c77)
[INFO] [stdout] test test8 ... ok
[INFO] [stdout] test test7 ... ok
[INFO] [stdout] test test6 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/union_find.rs (/opt/rustwide/target/debug/deps/union_find-e17e6dae9f4d09dd)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test1 ... ok
[INFO] [stdout] test test4 ... ok
[INFO] [stdout] test test2 ... ok
[INFO] [stdout] test test3 ... ok
[INFO] [stderr]    Doc-tests cauly-rust-leetcode-utils
[INFO] [stdout] test test5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f517118e1c8555b8d21cd6d05af93ff74823469a709c934607cd3bf2654d24d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f517118e1c8555b8d21cd6d05af93ff74823469a709c934607cd3bf2654d24d2", kill_on_drop: false }`
[INFO] [stdout] f517118e1c8555b8d21cd6d05af93ff74823469a709c934607cd3bf2654d24d2