[INFO] fetching crate scientist 0.1.2...
[INFO] checking scientist-0.1.2 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate scientist 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate scientist 0.1.2 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scientist 0.1.2
[INFO] finished tweaking crates.io crate scientist 0.1.2
[INFO] tweaked toml for crates.io crate scientist 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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] 00d7e0bc9399190f321907f3eb6e018b1ed5ac0d6e800e294e2ba29d700f781b
[INFO] running `Command { std: "docker" "start" "-a" "00d7e0bc9399190f321907f3eb6e018b1ed5ac0d6e800e294e2ba29d700f781b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00d7e0bc9399190f321907f3eb6e018b1ed5ac0d6e800e294e2ba29d700f781b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00d7e0bc9399190f321907f3eb6e018b1ed5ac0d6e800e294e2ba29d700f781b", kill_on_drop: false }`
[INFO] [stdout] 00d7e0bc9399190f321907f3eb6e018b1ed5ac0d6e800e294e2ba29d700f781b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73439c6b49641c46c1fe8e8f1382e487154157e9c2e903ec2931f7918df2dba7
[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" "73439c6b49641c46c1fe8e8f1382e487154157e9c2e903ec2931f7918df2dba7", kill_on_drop: false }`
[INFO] [stderr]     Checking scientist v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "73439c6b49641c46c1fe8e8f1382e487154157e9c2e903ec2931f7918df2dba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73439c6b49641c46c1fe8e8f1382e487154157e9c2e903ec2931f7918df2dba7", kill_on_drop: false }`
[INFO] [stdout] 73439c6b49641c46c1fe8e8f1382e487154157e9c2e903ec2931f7918df2dba7