[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 beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurti-s%2Fchpt_8_rust_challenge" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Curti-s/chpt_8_rust_challenge on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-13/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" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1a70cc9f3a3c408704a87ed52bd4ee062ed89f28ec5b7e58dbf8af60fdcf6c2
[INFO] running `Command { std: "docker" "start" "-a" "a1a70cc9f3a3c408704a87ed52bd4ee062ed89f28ec5b7e58dbf8af60fdcf6c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1a70cc9f3a3c408704a87ed52bd4ee062ed89f28ec5b7e58dbf8af60fdcf6c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1a70cc9f3a3c408704a87ed52bd4ee062ed89f28ec5b7e58dbf8af60fdcf6c2", kill_on_drop: false }`
[INFO] [stdout] a1a70cc9f3a3c408704a87ed52bd4ee062ed89f28ec5b7e58dbf8af60fdcf6c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bb02274ea2864513d93775c7c7d9f18a15fad0d86b796c6059ef7ca3a72de77
[INFO] running `Command { std: "docker" "start" "-a" "2bb02274ea2864513d93775c7c7d9f18a15fad0d86b796c6059ef7ca3a72de77", kill_on_drop: false }`
[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 3.96s
[INFO] running `Command { std: "docker" "inspect" "2bb02274ea2864513d93775c7c7d9f18a15fad0d86b796c6059ef7ca3a72de77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bb02274ea2864513d93775c7c7d9f18a15fad0d86b796c6059ef7ca3a72de77", kill_on_drop: false }`
[INFO] [stdout] 2bb02274ea2864513d93775c7c7d9f18a15fad0d86b796c6059ef7ca3a72de77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 727aa3c7c9c32f109107a6ad979b07a3b69e6742cdbeea02cb8b9cc379c4ee12
[INFO] running `Command { std: "docker" "start" "-a" "727aa3c7c9c32f109107a6ad979b07a3b69e6742cdbeea02cb8b9cc379c4ee12", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling chpt_8_challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "727aa3c7c9c32f109107a6ad979b07a3b69e6742cdbeea02cb8b9cc379c4ee12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "727aa3c7c9c32f109107a6ad979b07a3b69e6742cdbeea02cb8b9cc379c4ee12", kill_on_drop: false }`
[INFO] [stdout] 727aa3c7c9c32f109107a6ad979b07a3b69e6742cdbeea02cb8b9cc379c4ee12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb47bc8d16f5a90f8643983c890eeb0887c7124e897743df9c44571f6b95a558
[INFO] running `Command { std: "docker" "start" "-a" "fb47bc8d16f5a90f8643983c890eeb0887c7124e897743df9c44571f6b95a558", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chpt_8_challenges-a563d05f71f9c63d)
[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" "fb47bc8d16f5a90f8643983c890eeb0887c7124e897743df9c44571f6b95a558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb47bc8d16f5a90f8643983c890eeb0887c7124e897743df9c44571f6b95a558", kill_on_drop: false }`
[INFO] [stdout] fb47bc8d16f5a90f8643983c890eeb0887c7124e897743df9c44571f6b95a558