[INFO] cloning repository https://github.com/Kishwar-Ayub/chapter7
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kishwar-Ayub/chapter7" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKishwar-Ayub%2Fchapter7", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKishwar-Ayub%2Fchapter7'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00aac6a45c9646addb294c79da75c903b9428f9d
[INFO] testing Kishwar-Ayub/chapter7 against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKishwar-Ayub%2Fchapter7" "/workspace/builds/worker-119/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-119/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kishwar-Ayub/chapter7 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Kishwar-Ayub/chapter7
[INFO] finished tweaking git repo https://github.com/Kishwar-Ayub/chapter7
[INFO] tweaked toml for git repo https://github.com/Kishwar-Ayub/chapter7 written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] crate git repo https://github.com/Kishwar-Ayub/chapter7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98bfdd64859e07a0b4429b069ec8415da54bcea552b7f98af89ad1fce7d47fda
[INFO] running `Command { std: "docker" "start" "-a" "98bfdd64859e07a0b4429b069ec8415da54bcea552b7f98af89ad1fce7d47fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98bfdd64859e07a0b4429b069ec8415da54bcea552b7f98af89ad1fce7d47fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98bfdd64859e07a0b4429b069ec8415da54bcea552b7f98af89ad1fce7d47fda", kill_on_drop: false }`
[INFO] [stdout] 98bfdd64859e07a0b4429b069ec8415da54bcea552b7f98af89ad1fce7d47fda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7daa8d70be59c68a9e3cc0c04fa9a46ff4ad8de98c1fa19440fdfb2efcd64d52
[INFO] running `Command { std: "docker" "start" "-a" "7daa8d70be59c68a9e3cc0c04fa9a46ff4ad8de98c1fa19440fdfb2efcd64d52", kill_on_drop: false }`
[INFO] [stderr]    Compiling chapter7 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.00s
[INFO] running `Command { std: "docker" "inspect" "7daa8d70be59c68a9e3cc0c04fa9a46ff4ad8de98c1fa19440fdfb2efcd64d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7daa8d70be59c68a9e3cc0c04fa9a46ff4ad8de98c1fa19440fdfb2efcd64d52", kill_on_drop: false }`
[INFO] [stdout] 7daa8d70be59c68a9e3cc0c04fa9a46ff4ad8de98c1fa19440fdfb2efcd64d52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d382fd14dd83093b921a951dc610c13301a8f484fa5dd8e3daf5d44e1f4b82d
[INFO] running `Command { std: "docker" "start" "-a" "1d382fd14dd83093b921a951dc610c13301a8f484fa5dd8e3daf5d44e1f4b82d", kill_on_drop: false }`
[INFO] [stderr]    Compiling chapter7 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "1d382fd14dd83093b921a951dc610c13301a8f484fa5dd8e3daf5d44e1f4b82d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d382fd14dd83093b921a951dc610c13301a8f484fa5dd8e3daf5d44e1f4b82d", kill_on_drop: false }`
[INFO] [stdout] 1d382fd14dd83093b921a951dc610c13301a8f484fa5dd8e3daf5d44e1f4b82d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f354e73cfe9cb8c93843a87b8bd00c4c2f06ad3c0a1407aac3462f4823d14cc8
[INFO] running `Command { std: "docker" "start" "-a" "f354e73cfe9cb8c93843a87b8bd00c4c2f06ad3c0a1407aac3462f4823d14cc8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.56s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chapter7-289e78c611fcded5)
[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" "f354e73cfe9cb8c93843a87b8bd00c4c2f06ad3c0a1407aac3462f4823d14cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f354e73cfe9cb8c93843a87b8bd00c4c2f06ad3c0a1407aac3462f4823d14cc8", kill_on_drop: false }`
[INFO] [stdout] f354e73cfe9cb8c93843a87b8bd00c4c2f06ad3c0a1407aac3462f4823d14cc8