[INFO] cloning repository https://github.com/stevenmsl/rust_bt_word_ladder_126
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stevenmsl/rust_bt_word_ladder_126" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_bt_word_ladder_126", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_bt_word_ladder_126'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dbc62ea2529101c732847d7251b36189b8cbad09
[INFO] testing stevenmsl/rust_bt_word_ladder_126 against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_bt_word_ladder_126" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stevenmsl/rust_bt_word_ladder_126 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/stevenmsl/rust_bt_word_ladder_126
[INFO] finished tweaking git repo https://github.com/stevenmsl/rust_bt_word_ladder_126
[INFO] tweaked toml for git repo https://github.com/stevenmsl/rust_bt_word_ladder_126 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/stevenmsl/rust_bt_word_ladder_126 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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 0894b2b2a5aa074f37543c933f4d82682f3bb8708d02b42bd9da448de1a763b7
[INFO] running `Command { std: "docker" "start" "-a" "0894b2b2a5aa074f37543c933f4d82682f3bb8708d02b42bd9da448de1a763b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0894b2b2a5aa074f37543c933f4d82682f3bb8708d02b42bd9da448de1a763b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0894b2b2a5aa074f37543c933f4d82682f3bb8708d02b42bd9da448de1a763b7", kill_on_drop: false }`
[INFO] [stdout] 0894b2b2a5aa074f37543c933f4d82682f3bb8708d02b42bd9da448de1a763b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] fc40422375a8a5e53adcd3bd9ef1c423c71a11d0ce09b25b3697eda235f38aa7
[INFO] running `Command { std: "docker" "start" "-a" "fc40422375a8a5e53adcd3bd9ef1c423c71a11d0ce09b25b3697eda235f38aa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_bt_word_ladder_126 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "fc40422375a8a5e53adcd3bd9ef1c423c71a11d0ce09b25b3697eda235f38aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc40422375a8a5e53adcd3bd9ef1c423c71a11d0ce09b25b3697eda235f38aa7", kill_on_drop: false }`
[INFO] [stdout] fc40422375a8a5e53adcd3bd9ef1c423c71a11d0ce09b25b3697eda235f38aa7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] e23d64371f1a2f7c83fb6ce08f60ff2ce73c68b1f3ee33490de9e53dda71fe09
[INFO] running `Command { std: "docker" "start" "-a" "e23d64371f1a2f7c83fb6ce08f60ff2ce73c68b1f3ee33490de9e53dda71fe09", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_bt_word_ladder_126 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "e23d64371f1a2f7c83fb6ce08f60ff2ce73c68b1f3ee33490de9e53dda71fe09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23d64371f1a2f7c83fb6ce08f60ff2ce73c68b1f3ee33490de9e53dda71fe09", kill_on_drop: false }`
[INFO] [stdout] e23d64371f1a2f7c83fb6ce08f60ff2ce73c68b1f3ee33490de9e53dda71fe09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 4e865aebf0e5442b6bb881fd2d1a60def79e58213ab6e96211d16cf316aa823a
[INFO] running `Command { std: "docker" "start" "-a" "4e865aebf0e5442b6bb881fd2d1a60def79e58213ab6e96211d16cf316aa823a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_bt_word_ladder_126-c925dea620f4377d)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::sample_2 ... ok
[INFO] [stdout] test tests::construct_path ... ok
[INFO] [stdout] test tests::sample_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_bt_word_ladder_126-661f8ffd30625587)
[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] [stderr]    Doc-tests rust_bt_word_ladder_126
[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" "4e865aebf0e5442b6bb881fd2d1a60def79e58213ab6e96211d16cf316aa823a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e865aebf0e5442b6bb881fd2d1a60def79e58213ab6e96211d16cf316aa823a", kill_on_drop: false }`
[INFO] [stdout] 4e865aebf0e5442b6bb881fd2d1a60def79e58213ab6e96211d16cf316aa823a