[INFO] cloning repository https://github.com/Hand-In-Glove/FizzBuzz_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hand-In-Glove/FizzBuzz_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHand-In-Glove%2FFizzBuzz_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHand-In-Glove%2FFizzBuzz_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0425c607834488753bfe9c0775cf09733fb96e06
[INFO] checking Hand-In-Glove/FizzBuzz_Rust against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHand-In-Glove%2FFizzBuzz_Rust" "/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/Hand-In-Glove/FizzBuzz_Rust on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hand-In-Glove/FizzBuzz_Rust
[INFO] finished tweaking git repo https://github.com/Hand-In-Glove/FizzBuzz_Rust
[INFO] tweaked toml for git repo https://github.com/Hand-In-Glove/FizzBuzz_Rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Hand-In-Glove/FizzBuzz_Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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-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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c85a757d8ec18914fb8aebc3afb491caa06c731537aea21b2498734c57fd62c2
[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" "c85a757d8ec18914fb8aebc3afb491caa06c731537aea21b2498734c57fd62c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c85a757d8ec18914fb8aebc3afb491caa06c731537aea21b2498734c57fd62c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c85a757d8ec18914fb8aebc3afb491caa06c731537aea21b2498734c57fd62c2", kill_on_drop: false }`
[INFO] [stdout] c85a757d8ec18914fb8aebc3afb491caa06c731537aea21b2498734c57fd62c2
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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] d0648c16222d5177fd39bc2fd5e87f7d90c993eaf47e7575cd44e33defa03dc9
[INFO] running `Command { std: "docker" "start" "-a" "d0648c16222d5177fd39bc2fd5e87f7d90c993eaf47e7575cd44e33defa03dc9", kill_on_drop: false }`
[INFO] [stderr]     Checking fizz_buzz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "d0648c16222d5177fd39bc2fd5e87f7d90c993eaf47e7575cd44e33defa03dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0648c16222d5177fd39bc2fd5e87f7d90c993eaf47e7575cd44e33defa03dc9", kill_on_drop: false }`
[INFO] [stdout] d0648c16222d5177fd39bc2fd5e87f7d90c993eaf47e7575cd44e33defa03dc9