[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 beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKishwar-Ayub%2Fchapter7" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kishwar-Ayub/chapter7 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-20/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" "+beta-2022-04-10" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e5acab90da23d13bdb465f5476fa070c7c17116e41d2f1855ec1b4b5364be24
[INFO] running `Command { std: "docker" "start" "-a" "8e5acab90da23d13bdb465f5476fa070c7c17116e41d2f1855ec1b4b5364be24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e5acab90da23d13bdb465f5476fa070c7c17116e41d2f1855ec1b4b5364be24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e5acab90da23d13bdb465f5476fa070c7c17116e41d2f1855ec1b4b5364be24", kill_on_drop: false }`
[INFO] [stdout] 8e5acab90da23d13bdb465f5476fa070c7c17116e41d2f1855ec1b4b5364be24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6edc3efc8a800b65295807222ffb83d05461efeb982c9c0ce4b941ae442d9472
[INFO] running `Command { std: "docker" "start" "-a" "6edc3efc8a800b65295807222ffb83d05461efeb982c9c0ce4b941ae442d9472", kill_on_drop: false }`
[INFO] [stderr]    Compiling chapter7 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "6edc3efc8a800b65295807222ffb83d05461efeb982c9c0ce4b941ae442d9472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6edc3efc8a800b65295807222ffb83d05461efeb982c9c0ce4b941ae442d9472", kill_on_drop: false }`
[INFO] [stdout] 6edc3efc8a800b65295807222ffb83d05461efeb982c9c0ce4b941ae442d9472
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2152dee2a678ee0e88541c9d554b39ec631c81d825370e0e0ec67298833f696d
[INFO] running `Command { std: "docker" "start" "-a" "2152dee2a678ee0e88541c9d554b39ec631c81d825370e0e0ec67298833f696d", kill_on_drop: false }`
[INFO] [stderr]    Compiling chapter7 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/chapter7-9dd14c9657f7669e)
[INFO] running `Command { std: "docker" "inspect" "2152dee2a678ee0e88541c9d554b39ec631c81d825370e0e0ec67298833f696d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2152dee2a678ee0e88541c9d554b39ec631c81d825370e0e0ec67298833f696d", kill_on_drop: false }`
[INFO] [stdout] 2152dee2a678ee0e88541c9d554b39ec631c81d825370e0e0ec67298833f696d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0f08e48aac63f697f38840c7120cdf03441f7a06894cbc5b229ba92dcbef2e11
[INFO] running `Command { std: "docker" "start" "-a" "0f08e48aac63f697f38840c7120cdf03441f7a06894cbc5b229ba92dcbef2e11", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chapter7-9dd14c9657f7669e)
[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" "0f08e48aac63f697f38840c7120cdf03441f7a06894cbc5b229ba92dcbef2e11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f08e48aac63f697f38840c7120cdf03441f7a06894cbc5b229ba92dcbef2e11", kill_on_drop: false }`
[INFO] [stdout] 0f08e48aac63f697f38840c7120cdf03441f7a06894cbc5b229ba92dcbef2e11