[INFO] fetching crate warmth 0.2.0...
[INFO] testing warmth-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate warmth 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate warmth 0.2.0 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 warmth 0.2.0
[INFO] finished tweaking crates.io crate warmth 0.2.0
[INFO] tweaked toml for crates.io crate warmth 0.2.0 written to /workspace/builds/worker-12/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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] bbda12769516a6cd566cc12461f0125f05814277b433dff80eb8797628828bdc
[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" "bbda12769516a6cd566cc12461f0125f05814277b433dff80eb8797628828bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbda12769516a6cd566cc12461f0125f05814277b433dff80eb8797628828bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbda12769516a6cd566cc12461f0125f05814277b433dff80eb8797628828bdc", kill_on_drop: false }`
[INFO] [stdout] bbda12769516a6cd566cc12461f0125f05814277b433dff80eb8797628828bdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 4656d77ba240384774fbf4ee4446752118947bc0c9248ccc259854e23028b17a
[INFO] running `Command { std: "docker" "start" "-a" "4656d77ba240384774fbf4ee4446752118947bc0c9248ccc259854e23028b17a", kill_on_drop: false }`
[INFO] [stderr]    Compiling snowgoggles v0.1.1
[INFO] [stderr]    Compiling parka v0.1.0
[INFO] [stderr]    Compiling booties v0.1.1
[INFO] [stderr]    Compiling earmuffs v0.1.0
[INFO] [stderr]    Compiling fluff v0.1.1
[INFO] [stderr]    Compiling warmth v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "4656d77ba240384774fbf4ee4446752118947bc0c9248ccc259854e23028b17a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4656d77ba240384774fbf4ee4446752118947bc0c9248ccc259854e23028b17a", kill_on_drop: false }`
[INFO] [stdout] 4656d77ba240384774fbf4ee4446752118947bc0c9248ccc259854e23028b17a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 1e8f67257ec473ff804564e0475aeab0f5aae04f25ffdfd9ab3e22b87a9dcebb
[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" "1e8f67257ec473ff804564e0475aeab0f5aae04f25ffdfd9ab3e22b87a9dcebb", kill_on_drop: false }`
[INFO] [stderr]    Compiling warmth v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "1e8f67257ec473ff804564e0475aeab0f5aae04f25ffdfd9ab3e22b87a9dcebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8f67257ec473ff804564e0475aeab0f5aae04f25ffdfd9ab3e22b87a9dcebb", kill_on_drop: false }`
[INFO] [stdout] 1e8f67257ec473ff804564e0475aeab0f5aae04f25ffdfd9ab3e22b87a9dcebb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f6cf8d445b862739a90d7d0bf8d18b2f1eac7625a0cd5a6262fd09d3a75488b3
[INFO] running `Command { std: "docker" "start" "-a" "f6cf8d445b862739a90d7d0bf8d18b2f1eac7625a0cd5a6262fd09d3a75488b3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/warmth-5fb6705f0049b6e9
[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] [stderr]    Doc-tests warmth
[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" "f6cf8d445b862739a90d7d0bf8d18b2f1eac7625a0cd5a6262fd09d3a75488b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6cf8d445b862739a90d7d0bf8d18b2f1eac7625a0cd5a6262fd09d3a75488b3", kill_on_drop: false }`
[INFO] [stdout] f6cf8d445b862739a90d7d0bf8d18b2f1eac7625a0cd5a6262fd09d3a75488b3