[INFO] fetching crate tsukurou_engine 0.1.0...
[INFO] testing tsukurou_engine-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate tsukurou_engine 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tsukurou_engine 0.1.0 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 tsukurou_engine 0.1.0
[INFO] finished tweaking crates.io crate tsukurou_engine 0.1.0
[INFO] tweaked toml for crates.io crate tsukurou_engine 0.1.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 2df0158f723d59cbef03c57822b6ce2c9d1ed535d0844f00c52c6e8d20be7c99
[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" "2df0158f723d59cbef03c57822b6ce2c9d1ed535d0844f00c52c6e8d20be7c99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2df0158f723d59cbef03c57822b6ce2c9d1ed535d0844f00c52c6e8d20be7c99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df0158f723d59cbef03c57822b6ce2c9d1ed535d0844f00c52c6e8d20be7c99", kill_on_drop: false }`
[INFO] [stdout] 2df0158f723d59cbef03c57822b6ce2c9d1ed535d0844f00c52c6e8d20be7c99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] a8f6b6e7e83d3ba8c5371c4f2e32d9cf103381ae9a35b0079ca67e2cc5d08cef
[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" "a8f6b6e7e83d3ba8c5371c4f2e32d9cf103381ae9a35b0079ca67e2cc5d08cef", kill_on_drop: false }`
[INFO] [stderr]    Compiling tsukurou_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "a8f6b6e7e83d3ba8c5371c4f2e32d9cf103381ae9a35b0079ca67e2cc5d08cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8f6b6e7e83d3ba8c5371c4f2e32d9cf103381ae9a35b0079ca67e2cc5d08cef", kill_on_drop: false }`
[INFO] [stdout] a8f6b6e7e83d3ba8c5371c4f2e32d9cf103381ae9a35b0079ca67e2cc5d08cef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 87505a8da999b27f21f381d0cdd5327d33feb075d7a66bcb7b69d091c7a3cb41
[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" "87505a8da999b27f21f381d0cdd5327d33feb075d7a66bcb7b69d091c7a3cb41", kill_on_drop: false }`
[INFO] [stderr]    Compiling tsukurou_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "87505a8da999b27f21f381d0cdd5327d33feb075d7a66bcb7b69d091c7a3cb41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87505a8da999b27f21f381d0cdd5327d33feb075d7a66bcb7b69d091c7a3cb41", kill_on_drop: false }`
[INFO] [stdout] 87505a8da999b27f21f381d0cdd5327d33feb075d7a66bcb7b69d091c7a3cb41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 491860cc09b23889ad8a999d8490490280d7656d0e68ab791ace16a430819b8c
[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" "491860cc09b23889ad8a999d8490490280d7656d0e68ab791ace16a430819b8c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tsukurou_engine-2274c785172a4fbe
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests tsukurou_engine
[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] [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" "491860cc09b23889ad8a999d8490490280d7656d0e68ab791ace16a430819b8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "491860cc09b23889ad8a999d8490490280d7656d0e68ab791ace16a430819b8c", kill_on_drop: false }`
[INFO] [stdout] 491860cc09b23889ad8a999d8490490280d7656d0e68ab791ace16a430819b8c