[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 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftnas%2Fword-ladder" "/workspace/builds/worker-47/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-47/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tnas/word-ladder 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/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-47/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] b55531690b880a861d3ba06619d2398d503ddfeabdfde2175f8f11ef8ba2422e [INFO] running `Command { std: "docker" "start" "-a" "b55531690b880a861d3ba06619d2398d503ddfeabdfde2175f8f11ef8ba2422e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b55531690b880a861d3ba06619d2398d503ddfeabdfde2175f8f11ef8ba2422e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b55531690b880a861d3ba06619d2398d503ddfeabdfde2175f8f11ef8ba2422e", kill_on_drop: false }` [INFO] [stdout] b55531690b880a861d3ba06619d2398d503ddfeabdfde2175f8f11ef8ba2422e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] 74d334994a22fcc5f383054ff6c45ff522399f3b920abc0bc8029712b0b75287 [INFO] running `Command { std: "docker" "start" "-a" "74d334994a22fcc5f383054ff6c45ff522399f3b920abc0bc8029712b0b75287", 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 6.56s [INFO] running `Command { std: "docker" "inspect" "74d334994a22fcc5f383054ff6c45ff522399f3b920abc0bc8029712b0b75287", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74d334994a22fcc5f383054ff6c45ff522399f3b920abc0bc8029712b0b75287", kill_on_drop: false }` [INFO] [stdout] 74d334994a22fcc5f383054ff6c45ff522399f3b920abc0bc8029712b0b75287 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] 576c1c3aae068e51b2fd080b105ecff0529b87fe822fe717742d36c7d801a1cc [INFO] running `Command { std: "docker" "start" "-a" "576c1c3aae068e51b2fd080b105ecff0529b87fe822fe717742d36c7d801a1cc", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling word-ladder v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.15s [INFO] running `Command { std: "docker" "inspect" "576c1c3aae068e51b2fd080b105ecff0529b87fe822fe717742d36c7d801a1cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "576c1c3aae068e51b2fd080b105ecff0529b87fe822fe717742d36c7d801a1cc", kill_on_drop: false }` [INFO] [stdout] 576c1c3aae068e51b2fd080b105ecff0529b87fe822fe717742d36c7d801a1cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] 20989254a9286ada4469a77d4ecada9cd688ed50a0430e2a6c9ab5e057f3cfb7 [INFO] running `Command { std: "docker" "start" "-a" "20989254a9286ada4469a77d4ecada9cd688ed50a0430e2a6c9ab5e057f3cfb7", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/word_ladder-c7186f968d4440e9) [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" "20989254a9286ada4469a77d4ecada9cd688ed50a0430e2a6c9ab5e057f3cfb7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20989254a9286ada4469a77d4ecada9cd688ed50a0430e2a6c9ab5e057f3cfb7", kill_on_drop: false }` [INFO] [stdout] 20989254a9286ada4469a77d4ecada9cd688ed50a0430e2a6c9ab5e057f3cfb7