[INFO] cloning repository https://github.com/Curti-s/chpt_8_rust_challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Curti-s/chpt_8_rust_challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurti-s%2Fchpt_8_rust_challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurti-s%2Fchpt_8_rust_challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fb9431595ba3956bad6523f1f89986e0118d251
[INFO] testing Curti-s/chpt_8_rust_challenge against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurti-s%2Fchpt_8_rust_challenge" "/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/Curti-s/chpt_8_rust_challenge on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Curti-s/chpt_8_rust_challenge
[INFO] finished tweaking git repo https://github.com/Curti-s/chpt_8_rust_challenge
[INFO] tweaked toml for git repo https://github.com/Curti-s/chpt_8_rust_challenge written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Curti-s/chpt_8_rust_challenge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98cc75face5ce342c02008f992cd3a8fff808df65550c4266ff726fdbf5c442e
[INFO] running `Command { std: "docker" "start" "-a" "98cc75face5ce342c02008f992cd3a8fff808df65550c4266ff726fdbf5c442e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98cc75face5ce342c02008f992cd3a8fff808df65550c4266ff726fdbf5c442e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98cc75face5ce342c02008f992cd3a8fff808df65550c4266ff726fdbf5c442e", kill_on_drop: false }`
[INFO] [stdout] 98cc75face5ce342c02008f992cd3a8fff808df65550c4266ff726fdbf5c442e
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3b25ca74adfa068e1285fdbb82b08fd5bc6bef2581183ec6350261ce302c8e4
[INFO] running `Command { std: "docker" "start" "-a" "e3b25ca74adfa068e1285fdbb82b08fd5bc6bef2581183ec6350261ce302c8e4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling chpt_8_challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.09s
[INFO] running `Command { std: "docker" "inspect" "e3b25ca74adfa068e1285fdbb82b08fd5bc6bef2581183ec6350261ce302c8e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b25ca74adfa068e1285fdbb82b08fd5bc6bef2581183ec6350261ce302c8e4", kill_on_drop: false }`
[INFO] [stdout] e3b25ca74adfa068e1285fdbb82b08fd5bc6bef2581183ec6350261ce302c8e4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d45c555884b0996f23a199f6e549811939734e12573b29c1cfab7d2c027456c
[INFO] running `Command { std: "docker" "start" "-a" "9d45c555884b0996f23a199f6e549811939734e12573b29c1cfab7d2c027456c", kill_on_drop: false }`
[INFO] [stderr]    Compiling chpt_8_challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "9d45c555884b0996f23a199f6e549811939734e12573b29c1cfab7d2c027456c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d45c555884b0996f23a199f6e549811939734e12573b29c1cfab7d2c027456c", kill_on_drop: false }`
[INFO] [stdout] 9d45c555884b0996f23a199f6e549811939734e12573b29c1cfab7d2c027456c
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 510a3685512557187226959777e8e267b0298679ece47cf2f6e7622ccb8f95aa
[INFO] running `Command { std: "docker" "start" "-a" "510a3685512557187226959777e8e267b0298679ece47cf2f6e7622ccb8f95aa", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chpt_8_challenges-f8bc3556036a0f85)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "510a3685512557187226959777e8e267b0298679ece47cf2f6e7622ccb8f95aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "510a3685512557187226959777e8e267b0298679ece47cf2f6e7622ccb8f95aa", kill_on_drop: false }`
[INFO] [stdout] 510a3685512557187226959777e8e267b0298679ece47cf2f6e7622ccb8f95aa