[INFO] cloning repository https://github.com/gentarok/rust_tut_closures
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gentarok/rust_tut_closures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgentarok%2Frust_tut_closures", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgentarok%2Frust_tut_closures'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4047a44cda8041075303d6ebd7217b60c0aa913
[INFO] checking gentarok/rust_tut_closures against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgentarok%2Frust_tut_closures" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gentarok/rust_tut_closures on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gentarok/rust_tut_closures
[INFO] finished tweaking git repo https://github.com/gentarok/rust_tut_closures
[INFO] tweaked toml for git repo https://github.com/gentarok/rust_tut_closures written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/gentarok/rust_tut_closures already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "fetch" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb91a08fca6eb23b2c1541a2b89da2c8f1f5d8d6813ce5a0179340ea22acc8f9
[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" "eb91a08fca6eb23b2c1541a2b89da2c8f1f5d8d6813ce5a0179340ea22acc8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb91a08fca6eb23b2c1541a2b89da2c8f1f5d8d6813ce5a0179340ea22acc8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb91a08fca6eb23b2c1541a2b89da2c8f1f5d8d6813ce5a0179340ea22acc8f9", kill_on_drop: false }`
[INFO] [stdout] eb91a08fca6eb23b2c1541a2b89da2c8f1f5d8d6813ce5a0179340ea22acc8f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03f45b4002505b2be593c0ee41371c3ab5d45b8632ec90a49ee0f7bef4d097cd
[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" "03f45b4002505b2be593c0ee41371c3ab5d45b8632ec90a49ee0f7bef4d097cd", kill_on_drop: false }`
[INFO] [stderr]     Checking closure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "03f45b4002505b2be593c0ee41371c3ab5d45b8632ec90a49ee0f7bef4d097cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03f45b4002505b2be593c0ee41371c3ab5d45b8632ec90a49ee0f7bef4d097cd", kill_on_drop: false }`
[INFO] [stdout] 03f45b4002505b2be593c0ee41371c3ab5d45b8632ec90a49ee0f7bef4d097cd