[INFO] cloning repository https://github.com/nlflint/look_and_say
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nlflint/look_and_say" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Flook_and_say", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Flook_and_say'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c1f39809229642415e57120b04818a82a2daed6
[INFO] testing nlflint/look_and_say against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Flook_and_say" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nlflint/look_and_say on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nlflint/look_and_say
[INFO] finished tweaking git repo https://github.com/nlflint/look_and_say
[INFO] tweaked toml for git repo https://github.com/nlflint/look_and_say written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/nlflint/look_and_say already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96efa8bceec8f715ef13055a0e6f4c29125cde4e313867512c9cdbdfccc4b496
[INFO] running `Command { std: "docker" "start" "-a" "96efa8bceec8f715ef13055a0e6f4c29125cde4e313867512c9cdbdfccc4b496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96efa8bceec8f715ef13055a0e6f4c29125cde4e313867512c9cdbdfccc4b496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96efa8bceec8f715ef13055a0e6f4c29125cde4e313867512c9cdbdfccc4b496", kill_on_drop: false }`
[INFO] [stdout] 96efa8bceec8f715ef13055a0e6f4c29125cde4e313867512c9cdbdfccc4b496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e6ad4bba1f903a3f390ad51e73351bb4fba4ed18b91796f406e371f285a84a8
[INFO] running `Command { std: "docker" "start" "-a" "4e6ad4bba1f903a3f390ad51e73351bb4fba4ed18b91796f406e371f285a84a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling look-and-say v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "4e6ad4bba1f903a3f390ad51e73351bb4fba4ed18b91796f406e371f285a84a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e6ad4bba1f903a3f390ad51e73351bb4fba4ed18b91796f406e371f285a84a8", kill_on_drop: false }`
[INFO] [stdout] 4e6ad4bba1f903a3f390ad51e73351bb4fba4ed18b91796f406e371f285a84a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87912aff83998fb0aabc0e5c7748509ceee8771cac3c6654668750e2a74ad559
[INFO] running `Command { std: "docker" "start" "-a" "87912aff83998fb0aabc0e5c7748509ceee8771cac3c6654668750e2a74ad559", kill_on_drop: false }`
[INFO] [stderr]    Compiling look-and-say v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/look_and_say-e5b95092c73d4da7)
[INFO] running `Command { std: "docker" "inspect" "87912aff83998fb0aabc0e5c7748509ceee8771cac3c6654668750e2a74ad559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87912aff83998fb0aabc0e5c7748509ceee8771cac3c6654668750e2a74ad559", kill_on_drop: false }`
[INFO] [stdout] 87912aff83998fb0aabc0e5c7748509ceee8771cac3c6654668750e2a74ad559
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 97c21ff49fa1f20c10ef5419a5abc9e820873d944900dcfe3faca9569b8ff52f
[INFO] running `Command { std: "docker" "start" "-a" "97c21ff49fa1f20c10ef5419a5abc9e820873d944900dcfe3faca9569b8ff52f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/look_and_say-e5b95092c73d4da7)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test _111223144511777_is_3122131124152137 ... ok
[INFO] [stdout] test _11_is_21 ... ok
[INFO] [stdout] test _1_is_11 ... ok
[INFO] [stdout] test _1_with_3_iterations ... ok
[INFO] [stdout] test _21_is_1211 ... ok
[INFO] [stdout] test _1_with_41_iterations ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "97c21ff49fa1f20c10ef5419a5abc9e820873d944900dcfe3faca9569b8ff52f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c21ff49fa1f20c10ef5419a5abc9e820873d944900dcfe3faca9569b8ff52f", kill_on_drop: false }`
[INFO] [stdout] 97c21ff49fa1f20c10ef5419a5abc9e820873d944900dcfe3faca9569b8ff52f