[INFO] cloning repository https://github.com/saurabhkaul/rust-leetcode-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saurabhkaul/rust-leetcode-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaurabhkaul%2Frust-leetcode-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaurabhkaul%2Frust-leetcode-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08781f97e992339bd9628ab7f26d80c47a80ed0c
[INFO] testing saurabhkaul/rust-leetcode-practice against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaurabhkaul%2Frust-leetcode-practice" "/workspace/builds/worker-113/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-113/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saurabhkaul/rust-leetcode-practice on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/saurabhkaul/rust-leetcode-practice
[INFO] finished tweaking git repo https://github.com/saurabhkaul/rust-leetcode-practice
[INFO] tweaked toml for git repo https://github.com/saurabhkaul/rust-leetcode-practice written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] crate git repo https://github.com/saurabhkaul/rust-leetcode-practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0be1df8f1f2ca0c12ffd0a34bc8dc57316cfa439e741cdbccfe7ea8c3855e035
[INFO] running `Command { std: "docker" "start" "-a" "0be1df8f1f2ca0c12ffd0a34bc8dc57316cfa439e741cdbccfe7ea8c3855e035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0be1df8f1f2ca0c12ffd0a34bc8dc57316cfa439e741cdbccfe7ea8c3855e035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be1df8f1f2ca0c12ffd0a34bc8dc57316cfa439e741cdbccfe7ea8c3855e035", kill_on_drop: false }`
[INFO] [stdout] 0be1df8f1f2ca0c12ffd0a34bc8dc57316cfa439e741cdbccfe7ea8c3855e035
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f30818a8a524e3fbebb0d101ebc7d0f4348a359c014af40b85fd479de3f732e3
[INFO] running `Command { std: "docker" "start" "-a" "f30818a8a524e3fbebb0d101ebc7d0f4348a359c014af40b85fd479de3f732e3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_leetcode_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.17s
[INFO] running `Command { std: "docker" "inspect" "f30818a8a524e3fbebb0d101ebc7d0f4348a359c014af40b85fd479de3f732e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f30818a8a524e3fbebb0d101ebc7d0f4348a359c014af40b85fd479de3f732e3", kill_on_drop: false }`
[INFO] [stdout] f30818a8a524e3fbebb0d101ebc7d0f4348a359c014af40b85fd479de3f732e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c7490c55c21525190de90d2c2fba25ec192992574a782aafca86c4e32702fb4
[INFO] running `Command { std: "docker" "start" "-a" "0c7490c55c21525190de90d2c2fba25ec192992574a782aafca86c4e32702fb4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_leetcode_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "0c7490c55c21525190de90d2c2fba25ec192992574a782aafca86c4e32702fb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c7490c55c21525190de90d2c2fba25ec192992574a782aafca86c4e32702fb4", kill_on_drop: false }`
[INFO] [stdout] 0c7490c55c21525190de90d2c2fba25ec192992574a782aafca86c4e32702fb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b1b253f53a79f16a7faac85e3c89de3f3f10675119530594d3d9776cf92e3f7
[INFO] running `Command { std: "docker" "start" "-a" "0b1b253f53a79f16a7faac85e3c89de3f3f10675119530594d3d9776cf92e3f7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_leetcode_practice-b04e1049b3367408)
[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" "0b1b253f53a79f16a7faac85e3c89de3f3f10675119530594d3d9776cf92e3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b1b253f53a79f16a7faac85e3c89de3f3f10675119530594d3d9776cf92e3f7", kill_on_drop: false }`
[INFO] [stdout] 0b1b253f53a79f16a7faac85e3c89de3f3f10675119530594d3d9776cf92e3f7