[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c1f39809229642415e57120b04818a82a2daed6
[INFO] testing nlflint/look_and_say against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Flook_and_say" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nlflint/look_and_say on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/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" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 598020b05c712660719c933ecde3439a843c51ea1d299fd4906dd514c0591776
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "598020b05c712660719c933ecde3439a843c51ea1d299fd4906dd514c0591776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "598020b05c712660719c933ecde3439a843c51ea1d299fd4906dd514c0591776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "598020b05c712660719c933ecde3439a843c51ea1d299fd4906dd514c0591776", kill_on_drop: false }`
[INFO] [stdout] 598020b05c712660719c933ecde3439a843c51ea1d299fd4906dd514c0591776
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 443bf16fa645cba0947fb362ebf12d1898d1145c875d89e072f6a2d96c54d4d2
[INFO] running `Command { std: "docker" "start" "-a" "443bf16fa645cba0947fb362ebf12d1898d1145c875d89e072f6a2d96c54d4d2", 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 0.77s
[INFO] running `Command { std: "docker" "inspect" "443bf16fa645cba0947fb362ebf12d1898d1145c875d89e072f6a2d96c54d4d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "443bf16fa645cba0947fb362ebf12d1898d1145c875d89e072f6a2d96c54d4d2", kill_on_drop: false }`
[INFO] [stdout] 443bf16fa645cba0947fb362ebf12d1898d1145c875d89e072f6a2d96c54d4d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d9c8573e81a5db6492e7cef90caa8ce663c3b19ab7d351e4a7b725e5daf3046
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1d9c8573e81a5db6492e7cef90caa8ce663c3b19ab7d351e4a7b725e5daf3046", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling look-and-say v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "1d9c8573e81a5db6492e7cef90caa8ce663c3b19ab7d351e4a7b725e5daf3046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d9c8573e81a5db6492e7cef90caa8ce663c3b19ab7d351e4a7b725e5daf3046", kill_on_drop: false }`
[INFO] [stdout] 1d9c8573e81a5db6492e7cef90caa8ce663c3b19ab7d351e4a7b725e5daf3046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b0d64621001013c5e2d54a6f098d37e703b25c9fa7801484fda733b22ea075a8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b0d64621001013c5e2d54a6f098d37e703b25c9fa7801484fda733b22ea075a8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/look_and_say-5716281ba17ac8a9
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test _111223144511777_is_3122131124152137 ... ok
[INFO] [stdout] test _1_is_11 ... ok
[INFO] [stdout] test _11_is_21 ... 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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b0d64621001013c5e2d54a6f098d37e703b25c9fa7801484fda733b22ea075a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d64621001013c5e2d54a6f098d37e703b25c9fa7801484fda733b22ea075a8", kill_on_drop: false }`
[INFO] [stdout] b0d64621001013c5e2d54a6f098d37e703b25c9fa7801484fda733b22ea075a8