[INFO] fetching crate b2sum 0.3.0...
[INFO] testing b2sum-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate b2sum 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate b2sum 0.3.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b2sum 0.3.0
[INFO] finished tweaking crates.io crate b2sum 0.3.0
[INFO] tweaked toml for crates.io crate b2sum 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b35d9eeb31367f29f9b781d0e15e8c831c1ce6054056fcad7b04b9f50bca294e
[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" "b35d9eeb31367f29f9b781d0e15e8c831c1ce6054056fcad7b04b9f50bca294e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b35d9eeb31367f29f9b781d0e15e8c831c1ce6054056fcad7b04b9f50bca294e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b35d9eeb31367f29f9b781d0e15e8c831c1ce6054056fcad7b04b9f50bca294e", kill_on_drop: false }`
[INFO] [stdout] b35d9eeb31367f29f9b781d0e15e8c831c1ce6054056fcad7b04b9f50bca294e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "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] 91bcb8a602ebd74aab313544b45cc0475cce38648281bb08ed9193d01b25dae4
[INFO] running `Command { std: "docker" "start" "-a" "91bcb8a602ebd74aab313544b45cc0475cce38648281bb08ed9193d01b25dae4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling blake2b_simd v0.5.11
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling b2sum v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.40s
[INFO] running `Command { std: "docker" "inspect" "91bcb8a602ebd74aab313544b45cc0475cce38648281bb08ed9193d01b25dae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91bcb8a602ebd74aab313544b45cc0475cce38648281bb08ed9193d01b25dae4", kill_on_drop: false }`
[INFO] [stdout] 91bcb8a602ebd74aab313544b45cc0475cce38648281bb08ed9193d01b25dae4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f96a3a38198039ea4c4721f95f416feb2d9dec7bb41c2166972c952f8912fcbe
[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" "f96a3a38198039ea4c4721f95f416feb2d9dec7bb41c2166972c952f8912fcbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling b2sum v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.27s
[INFO] running `Command { std: "docker" "inspect" "f96a3a38198039ea4c4721f95f416feb2d9dec7bb41c2166972c952f8912fcbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f96a3a38198039ea4c4721f95f416feb2d9dec7bb41c2166972c952f8912fcbe", kill_on_drop: false }`
[INFO] [stdout] f96a3a38198039ea4c4721f95f416feb2d9dec7bb41c2166972c952f8912fcbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5492d31019eb2dd01f910985d8faad70f448de2c4095309ca253b6e6224d8ef1
[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" "5492d31019eb2dd01f910985d8faad70f448de2c4095309ca253b6e6224d8ef1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/b2sum-c2156041eb8ebcea
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::split_check_line_with_missing_filename ... ok
[INFO] [stdout] test tests::test_hash_formatting ... ok
[INFO] [stdout] test tests::split_check_line_with_truncated_line ... ok
[INFO] [stdout] test tests::split_check_line_with_valid_line ... ok
[INFO] [stdout] test tests::split_check_line_with_too_small_hash ... ok
[INFO] [stdout] test tests::split_check_line_with_non_even_hash ... ok
[INFO] [stdout] test tests::split_check_line_with_too_long_hash ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5492d31019eb2dd01f910985d8faad70f448de2c4095309ca253b6e6224d8ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5492d31019eb2dd01f910985d8faad70f448de2c4095309ca253b6e6224d8ef1", kill_on_drop: false }`
[INFO] [stdout] 5492d31019eb2dd01f910985d8faad70f448de2c4095309ca253b6e6224d8ef1