[INFO] cloning repository https://github.com/Firstyear/hellorust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Firstyear/hellorust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFirstyear%2Fhellorust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFirstyear%2Fhellorust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db340ada93d00b225d43ea7b7388f86cad05ba11
[INFO] checking Firstyear/hellorust against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFirstyear%2Fhellorust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Firstyear/hellorust on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Firstyear/hellorust
[INFO] finished tweaking git repo https://github.com/Firstyear/hellorust
[INFO] tweaked toml for git repo https://github.com/Firstyear/hellorust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Firstyear/hellorust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "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] 2113277198e991cda2bfee1afc57b1d2102dcbd52fea5775dd67ae5edb6723d2
[INFO] running `Command { std: "docker" "start" "-a" "2113277198e991cda2bfee1afc57b1d2102dcbd52fea5775dd67ae5edb6723d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2113277198e991cda2bfee1afc57b1d2102dcbd52fea5775dd67ae5edb6723d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2113277198e991cda2bfee1afc57b1d2102dcbd52fea5775dd67ae5edb6723d2", kill_on_drop: false }`
[INFO] [stdout] 2113277198e991cda2bfee1afc57b1d2102dcbd52fea5775dd67ae5edb6723d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "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] 44c5fcfea2f8f1ab3968c9f5b6cfd40c2dc009f47004fb9fac8ebc6632d67a20
[INFO] running `Command { std: "docker" "start" "-a" "44c5fcfea2f8f1ab3968c9f5b6cfd40c2dc009f47004fb9fac8ebc6632d67a20", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking hellorust v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "44c5fcfea2f8f1ab3968c9f5b6cfd40c2dc009f47004fb9fac8ebc6632d67a20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44c5fcfea2f8f1ab3968c9f5b6cfd40c2dc009f47004fb9fac8ebc6632d67a20", kill_on_drop: false }`
[INFO] [stdout] 44c5fcfea2f8f1ab3968c9f5b6cfd40c2dc009f47004fb9fac8ebc6632d67a20