[INFO] fetching crate effect-monad 0.3.1...
[INFO] checking effect-monad-0.3.1 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate effect-monad 0.3.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate effect-monad 0.3.1 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate effect-monad 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate effect-monad 0.3.1
[INFO] tweaked toml for crates.io crate effect-monad 0.3.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] 5190c6f01d9cff1cceb0c68cbb23c7d77025615f04209377c321716862a284df
[INFO] running `Command { std: "docker" "start" "-a" "5190c6f01d9cff1cceb0c68cbb23c7d77025615f04209377c321716862a284df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5190c6f01d9cff1cceb0c68cbb23c7d77025615f04209377c321716862a284df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5190c6f01d9cff1cceb0c68cbb23c7d77025615f04209377c321716862a284df", kill_on_drop: false }`
[INFO] [stdout] 5190c6f01d9cff1cceb0c68cbb23c7d77025615f04209377c321716862a284df
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--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] b80c20d76e0a3e2fba8e79b2f8c153091197a8a4aefeab5348e02edbb1c73072
[INFO] running `Command { std: "docker" "start" "-a" "b80c20d76e0a3e2fba8e79b2f8c153091197a8a4aefeab5348e02edbb1c73072", kill_on_drop: false }`
[INFO] [stderr]     Checking effect-monad v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "b80c20d76e0a3e2fba8e79b2f8c153091197a8a4aefeab5348e02edbb1c73072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b80c20d76e0a3e2fba8e79b2f8c153091197a8a4aefeab5348e02edbb1c73072", kill_on_drop: false }`
[INFO] [stdout] b80c20d76e0a3e2fba8e79b2f8c153091197a8a4aefeab5348e02edbb1c73072