[INFO] cloning repository https://github.com/codurance-apprenticeship/fizz-buzz-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codurance-apprenticeship/fizz-buzz-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodurance-apprenticeship%2Ffizz-buzz-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodurance-apprenticeship%2Ffizz-buzz-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1cc7f9963e0b4c5e4e0720c578ea090fefc0a077
[INFO] checking codurance-apprenticeship/fizz-buzz-rust against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodurance-apprenticeship%2Ffizz-buzz-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codurance-apprenticeship/fizz-buzz-rust on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/codurance-apprenticeship/fizz-buzz-rust
[INFO] finished tweaking git repo https://github.com/codurance-apprenticeship/fizz-buzz-rust
[INFO] tweaked toml for git repo https://github.com/codurance-apprenticeship/fizz-buzz-rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/codurance-apprenticeship/fizz-buzz-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51c102b389cc7f595b26cbaad06f67878eeb1d97723f9887b3cdb5fb36faca50
[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" "51c102b389cc7f595b26cbaad06f67878eeb1d97723f9887b3cdb5fb36faca50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51c102b389cc7f595b26cbaad06f67878eeb1d97723f9887b3cdb5fb36faca50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51c102b389cc7f595b26cbaad06f67878eeb1d97723f9887b3cdb5fb36faca50", kill_on_drop: false }`
[INFO] [stdout] 51c102b389cc7f595b26cbaad06f67878eeb1d97723f9887b3cdb5fb36faca50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b349805c02ac531e2052153cefd9bb3f8d291980a711000b4c693d94eaae9159
[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" "b349805c02ac531e2052153cefd9bb3f8d291980a711000b4c693d94eaae9159", kill_on_drop: false }`
[INFO] [stderr]     Checking fizz-buzz-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "b349805c02ac531e2052153cefd9bb3f8d291980a711000b4c693d94eaae9159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b349805c02ac531e2052153cefd9bb3f8d291980a711000b4c693d94eaae9159", kill_on_drop: false }`
[INFO] [stdout] b349805c02ac531e2052153cefd9bb3f8d291980a711000b4c693d94eaae9159