[INFO] fetching crate project 0.1.0...
[INFO] checking project-0.1.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate project 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate project 0.1.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate project 0.1.0
[INFO] finished tweaking crates.io crate project 0.1.0
[INFO] tweaked toml for crates.io crate project 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate project 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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] ef5c0c3b2081c63b6045361f594d72d294ef4941a93b654e4940f574fa4de9ee
[INFO] running `Command { std: "docker" "start" "-a" "ef5c0c3b2081c63b6045361f594d72d294ef4941a93b654e4940f574fa4de9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef5c0c3b2081c63b6045361f594d72d294ef4941a93b654e4940f574fa4de9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef5c0c3b2081c63b6045361f594d72d294ef4941a93b654e4940f574fa4de9ee", kill_on_drop: false }`
[INFO] [stdout] ef5c0c3b2081c63b6045361f594d72d294ef4941a93b654e4940f574fa4de9ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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] 7c1b93e79f180cc4a1017bf506e3330583352dd879ad8afda3619dbf460df4cf
[INFO] running `Command { std: "docker" "start" "-a" "7c1b93e79f180cc4a1017bf506e3330583352dd879ad8afda3619dbf460df4cf", kill_on_drop: false }`
[INFO] [stderr]     Checking project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "7c1b93e79f180cc4a1017bf506e3330583352dd879ad8afda3619dbf460df4cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c1b93e79f180cc4a1017bf506e3330583352dd879ad8afda3619dbf460df4cf", kill_on_drop: false }`
[INFO] [stdout] 7c1b93e79f180cc4a1017bf506e3330583352dd879ad8afda3619dbf460df4cf