[INFO] cloning repository https://github.com/mwttg/rust-hints-and-tricks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwttg/rust-hints-and-tricks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwttg%2Frust-hints-and-tricks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwttg%2Frust-hints-and-tricks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1cb2e90031dc2ffbe7f65ef3a51b6e8b01df2fc4
[INFO] checking mwttg/rust-hints-and-tricks against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwttg%2Frust-hints-and-tricks" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mwttg/rust-hints-and-tricks on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mwttg/rust-hints-and-tricks
[INFO] finished tweaking git repo https://github.com/mwttg/rust-hints-and-tricks
[INFO] tweaked toml for git repo https://github.com/mwttg/rust-hints-and-tricks written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mwttg/rust-hints-and-tricks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "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] eee3324523e7f87bd64ce5a07f309160a62fb4f15bc306ab0fc91ff474fc365e
[INFO] running `Command { std: "docker" "start" "-a" "eee3324523e7f87bd64ce5a07f309160a62fb4f15bc306ab0fc91ff474fc365e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eee3324523e7f87bd64ce5a07f309160a62fb4f15bc306ab0fc91ff474fc365e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eee3324523e7f87bd64ce5a07f309160a62fb4f15bc306ab0fc91ff474fc365e", kill_on_drop: false }`
[INFO] [stdout] eee3324523e7f87bd64ce5a07f309160a62fb4f15bc306ab0fc91ff474fc365e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "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] 099a9016bccf9d5198567d7814c71575824a0f3e7ce5a935bd4e937429d66e67
[INFO] running `Command { std: "docker" "start" "-a" "099a9016bccf9d5198567d7814c71575824a0f3e7ce5a935bd4e937429d66e67", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-hints-and-tricks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "099a9016bccf9d5198567d7814c71575824a0f3e7ce5a935bd4e937429d66e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "099a9016bccf9d5198567d7814c71575824a0f3e7ce5a935bd4e937429d66e67", kill_on_drop: false }`
[INFO] [stdout] 099a9016bccf9d5198567d7814c71575824a0f3e7ce5a935bd4e937429d66e67