[INFO] cloning repository https://github.com/tnas/word-ladder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tnas/word-ladder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftnas%2Fword-ladder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftnas%2Fword-ladder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18eca310fbea5db95951ff4dd398d86ed7564995
[INFO] testing tnas/word-ladder against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftnas%2Fword-ladder" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tnas/word-ladder on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tnas/word-ladder
[INFO] finished tweaking git repo https://github.com/tnas/word-ladder
[INFO] tweaked toml for git repo https://github.com/tnas/word-ladder written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/tnas/word-ladder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a94ac3f264de9c0205ee1d891193208148563eaa45b588d4f8926ad214691420
[INFO] running `Command { std: "docker" "start" "-a" "a94ac3f264de9c0205ee1d891193208148563eaa45b588d4f8926ad214691420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a94ac3f264de9c0205ee1d891193208148563eaa45b588d4f8926ad214691420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a94ac3f264de9c0205ee1d891193208148563eaa45b588d4f8926ad214691420", kill_on_drop: false }`
[INFO] [stdout] a94ac3f264de9c0205ee1d891193208148563eaa45b588d4f8926ad214691420
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de168eed1c968cecc2bd6917894bf158b387a86ea2cf5429ebdad142be6d0599
[INFO] running `Command { std: "docker" "start" "-a" "de168eed1c968cecc2bd6917894bf158b387a86ea2cf5429ebdad142be6d0599", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling word-ladder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.12s
[INFO] running `Command { std: "docker" "inspect" "de168eed1c968cecc2bd6917894bf158b387a86ea2cf5429ebdad142be6d0599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de168eed1c968cecc2bd6917894bf158b387a86ea2cf5429ebdad142be6d0599", kill_on_drop: false }`
[INFO] [stdout] de168eed1c968cecc2bd6917894bf158b387a86ea2cf5429ebdad142be6d0599
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79e72ab4d31f1fe960fdec7e560280732c199a5cc95b51b18ecdcdf2a81331c4
[INFO] running `Command { std: "docker" "start" "-a" "79e72ab4d31f1fe960fdec7e560280732c199a5cc95b51b18ecdcdf2a81331c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling word-ladder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "79e72ab4d31f1fe960fdec7e560280732c199a5cc95b51b18ecdcdf2a81331c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79e72ab4d31f1fe960fdec7e560280732c199a5cc95b51b18ecdcdf2a81331c4", kill_on_drop: false }`
[INFO] [stdout] 79e72ab4d31f1fe960fdec7e560280732c199a5cc95b51b18ecdcdf2a81331c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e0999af4de412992448f5d9c02a8b216324d469b8834ecf8d128eb49b2e4b8b6
[INFO] running `Command { std: "docker" "start" "-a" "e0999af4de412992448f5d9c02a8b216324d469b8834ecf8d128eb49b2e4b8b6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/word_ladder-5f74d85942a17d41)
[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" "e0999af4de412992448f5d9c02a8b216324d469b8834ecf8d128eb49b2e4b8b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0999af4de412992448f5d9c02a8b216324d469b8834ecf8d128eb49b2e4b8b6", kill_on_drop: false }`
[INFO] [stdout] e0999af4de412992448f5d9c02a8b216324d469b8834ecf8d128eb49b2e4b8b6