[INFO] fetching crate mvc_traits 0.0.0...
[INFO] testing mvc_traits-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate mvc_traits 0.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mvc_traits 0.0.0 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 mvc_traits 0.0.0
[INFO] finished tweaking crates.io crate mvc_traits 0.0.0
[INFO] tweaked toml for crates.io crate mvc_traits 0.0.0 written to /workspace/builds/worker-5/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ea43436a2bb6a3e7b09e35b248a6afa77e4e091e5624083ae3ed9f50f263244e
[INFO] running `Command { std: "docker" "start" "-a" "ea43436a2bb6a3e7b09e35b248a6afa77e4e091e5624083ae3ed9f50f263244e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea43436a2bb6a3e7b09e35b248a6afa77e4e091e5624083ae3ed9f50f263244e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea43436a2bb6a3e7b09e35b248a6afa77e4e091e5624083ae3ed9f50f263244e", kill_on_drop: false }`
[INFO] [stdout] ea43436a2bb6a3e7b09e35b248a6afa77e4e091e5624083ae3ed9f50f263244e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] f6d42edb75095328213e70f2db97b11a33ae1b92cd91df7718da489bbd3b33d5
[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" "f6d42edb75095328213e70f2db97b11a33ae1b92cd91df7718da489bbd3b33d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling mvc_traits v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "f6d42edb75095328213e70f2db97b11a33ae1b92cd91df7718da489bbd3b33d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6d42edb75095328213e70f2db97b11a33ae1b92cd91df7718da489bbd3b33d5", kill_on_drop: false }`
[INFO] [stdout] f6d42edb75095328213e70f2db97b11a33ae1b92cd91df7718da489bbd3b33d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] a3fbc0b479a5814a410917d163896a0818efa9f79187134a256dfb20d73d346e
[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" "a3fbc0b479a5814a410917d163896a0818efa9f79187134a256dfb20d73d346e", kill_on_drop: false }`
[INFO] [stderr]    Compiling mvc_traits v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "a3fbc0b479a5814a410917d163896a0818efa9f79187134a256dfb20d73d346e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3fbc0b479a5814a410917d163896a0818efa9f79187134a256dfb20d73d346e", kill_on_drop: false }`
[INFO] [stdout] a3fbc0b479a5814a410917d163896a0818efa9f79187134a256dfb20d73d346e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 259bc875342ad82813c500c4f2ef0a0f80ef16cd2b66f947e9f7e428335d4a2f
[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" "259bc875342ad82813c500c4f2ef0a0f80ef16cd2b66f947e9f7e428335d4a2f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mvc_traits-6848c2e5bb41dc0a
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mvc_traits
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "259bc875342ad82813c500c4f2ef0a0f80ef16cd2b66f947e9f7e428335d4a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "259bc875342ad82813c500c4f2ef0a0f80ef16cd2b66f947e9f7e428335d4a2f", kill_on_drop: false }`
[INFO] [stdout] 259bc875342ad82813c500c4f2ef0a0f80ef16cd2b66f947e9f7e428335d4a2f