[INFO] cloning repository https://github.com/joeyrosztoczy/rust-book-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joeyrosztoczy/rust-book-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeyrosztoczy%2Frust-book-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeyrosztoczy%2Frust-book-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99c769183420d26f6a7a7ddc189099cb0eaf5fee
[INFO] checking joeyrosztoczy/rust-book-exercises against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeyrosztoczy%2Frust-book-exercises" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joeyrosztoczy/rust-book-exercises on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joeyrosztoczy/rust-book-exercises
[INFO] finished tweaking git repo https://github.com/joeyrosztoczy/rust-book-exercises
[INFO] tweaked toml for git repo https://github.com/joeyrosztoczy/rust-book-exercises written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/joeyrosztoczy/rust-book-exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43c3542664bc0e78ca2c0db8e7db443795635586d9f09e8b776e2bcacd48d27b
[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" "43c3542664bc0e78ca2c0db8e7db443795635586d9f09e8b776e2bcacd48d27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43c3542664bc0e78ca2c0db8e7db443795635586d9f09e8b776e2bcacd48d27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43c3542664bc0e78ca2c0db8e7db443795635586d9f09e8b776e2bcacd48d27b", kill_on_drop: false }`
[INFO] [stdout] 43c3542664bc0e78ca2c0db8e7db443795635586d9f09e8b776e2bcacd48d27b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e04a0b3ba8d5e433b0563e8afc980f0b43b97e86f4eb8afd4a05ef54d753a77c
[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" "e04a0b3ba8d5e433b0563e8afc980f0b43b97e86f4eb8afd4a05ef54d753a77c", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-bk-exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "e04a0b3ba8d5e433b0563e8afc980f0b43b97e86f4eb8afd4a05ef54d753a77c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e04a0b3ba8d5e433b0563e8afc980f0b43b97e86f4eb8afd4a05ef54d753a77c", kill_on_drop: false }`
[INFO] [stdout] e04a0b3ba8d5e433b0563e8afc980f0b43b97e86f4eb8afd4a05ef54d753a77c