[INFO] cloning repository https://github.com/xchrisbailey/cps261_rust_person_io
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xchrisbailey/cps261_rust_person_io" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxchrisbailey%2Fcps261_rust_person_io", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxchrisbailey%2Fcps261_rust_person_io'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1caba3c83b30d9e14ff52714ccf6aed0b06ffc4
[INFO] checking xchrisbailey/cps261_rust_person_io against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxchrisbailey%2Fcps261_rust_person_io" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xchrisbailey/cps261_rust_person_io on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xchrisbailey/cps261_rust_person_io
[INFO] finished tweaking git repo https://github.com/xchrisbailey/cps261_rust_person_io
[INFO] tweaked toml for git repo https://github.com/xchrisbailey/cps261_rust_person_io written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/xchrisbailey/cps261_rust_person_io already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cd4152f19ae041086890acc582da6e24a56b4a6f595d5f702bec0c9b2334146
[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" "2cd4152f19ae041086890acc582da6e24a56b4a6f595d5f702bec0c9b2334146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cd4152f19ae041086890acc582da6e24a56b4a6f595d5f702bec0c9b2334146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cd4152f19ae041086890acc582da6e24a56b4a6f595d5f702bec0c9b2334146", kill_on_drop: false }`
[INFO] [stdout] 2cd4152f19ae041086890acc582da6e24a56b4a6f595d5f702bec0c9b2334146
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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] 84bfc6f14171baa4934f665b515475c4100894a51b73cb0d695dc11cc58eacd6
[INFO] running `Command { std: "docker" "start" "-a" "84bfc6f14171baa4934f665b515475c4100894a51b73cb0d695dc11cc58eacd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.24
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking person_io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.31s
[INFO] running `Command { std: "docker" "inspect" "84bfc6f14171baa4934f665b515475c4100894a51b73cb0d695dc11cc58eacd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84bfc6f14171baa4934f665b515475c4100894a51b73cb0d695dc11cc58eacd6", kill_on_drop: false }`
[INFO] [stdout] 84bfc6f14171baa4934f665b515475c4100894a51b73cb0d695dc11cc58eacd6