[INFO] fetching crate strutil 0.0.1...
[INFO] testing strutil-0.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate strutil 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate strutil 0.0.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate strutil 0.0.1
[INFO] finished tweaking crates.io crate strutil 0.0.1
[INFO] tweaked toml for crates.io crate strutil 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 196ac8a39abdd2b7bb1ad7393f68d5ce0f81c622ac58e46e9a7504c3fa7cdd9f
[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" "196ac8a39abdd2b7bb1ad7393f68d5ce0f81c622ac58e46e9a7504c3fa7cdd9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "196ac8a39abdd2b7bb1ad7393f68d5ce0f81c622ac58e46e9a7504c3fa7cdd9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "196ac8a39abdd2b7bb1ad7393f68d5ce0f81c622ac58e46e9a7504c3fa7cdd9f", kill_on_drop: false }`
[INFO] [stdout] 196ac8a39abdd2b7bb1ad7393f68d5ce0f81c622ac58e46e9a7504c3fa7cdd9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] f7f6a0c71c4d43c92cd5236127cff6379bae135fd237a9f0e862c1950dda85e2
[INFO] running `Command { std: "docker" "start" "-a" "f7f6a0c71c4d43c92cd5236127cff6379bae135fd237a9f0e862c1950dda85e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling strutil v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "f7f6a0c71c4d43c92cd5236127cff6379bae135fd237a9f0e862c1950dda85e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7f6a0c71c4d43c92cd5236127cff6379bae135fd237a9f0e862c1950dda85e2", kill_on_drop: false }`
[INFO] [stdout] f7f6a0c71c4d43c92cd5236127cff6379bae135fd237a9f0e862c1950dda85e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c204241700ab1dbab10c4e759ad7d04c921649e363b437fcf4d4c07675d8af6
[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" "1c204241700ab1dbab10c4e759ad7d04c921649e363b437fcf4d4c07675d8af6", kill_on_drop: false }`
[INFO] [stderr]    Compiling strutil v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "1c204241700ab1dbab10c4e759ad7d04c921649e363b437fcf4d4c07675d8af6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c204241700ab1dbab10c4e759ad7d04c921649e363b437fcf4d4c07675d8af6", kill_on_drop: false }`
[INFO] [stdout] 1c204241700ab1dbab10c4e759ad7d04c921649e363b437fcf4d4c07675d8af6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 81a7d0ee4ebb251e61986704a5d83ff6586f6016647fb70b1787e2fb169e68f7
[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" "81a7d0ee4ebb251e61986704a5d83ff6586f6016647fb70b1787e2fb169e68f7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/strutil-e87e227fbca6dbc4
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests strutil
[INFO] [stdout] running 4 tests
[INFO] [stdout] test string_factory_tests::test_replace ... ok
[INFO] [stdout] test string_factory_tests::test_index ... ok
[INFO] [stdout] test string_factory_tests::test_creation ... ok
[INFO] [stdout] test string_factory_tests::test_append ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "81a7d0ee4ebb251e61986704a5d83ff6586f6016647fb70b1787e2fb169e68f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a7d0ee4ebb251e61986704a5d83ff6586f6016647fb70b1787e2fb169e68f7", kill_on_drop: false }`
[INFO] [stdout] 81a7d0ee4ebb251e61986704a5d83ff6586f6016647fb70b1787e2fb169e68f7