[INFO] cloning repository https://github.com/dev-Arif/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dev-Arif/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-Arif%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-Arif%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13abfbf1ce853b021e9755416e971ad0684fe63f
[INFO] testing dev-Arif/rust against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-Arif%2Frust" "/workspace/builds/worker-87/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-87/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dev-Arif/rust on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dev-Arif/rust
[INFO] finished tweaking git repo https://github.com/dev-Arif/rust
[INFO] tweaked toml for git repo https://github.com/dev-Arif/rust written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] crate git repo https://github.com/dev-Arif/rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87584632fc82d834b88b9b07c18c6cedad7c9a962cc01bd990a2d0d84a89723a
[INFO] running `Command { std: "docker" "start" "-a" "87584632fc82d834b88b9b07c18c6cedad7c9a962cc01bd990a2d0d84a89723a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87584632fc82d834b88b9b07c18c6cedad7c9a962cc01bd990a2d0d84a89723a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87584632fc82d834b88b9b07c18c6cedad7c9a962cc01bd990a2d0d84a89723a", kill_on_drop: false }`
[INFO] [stdout] 87584632fc82d834b88b9b07c18c6cedad7c9a962cc01bd990a2d0d84a89723a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44d4f9aa4580e7aa51c7db4150ebe0045f496aabf5a407c946fd2cea8b1f653e
[INFO] running `Command { std: "docker" "start" "-a" "44d4f9aa4580e7aa51c7db4150ebe0045f496aabf5a407c946fd2cea8b1f653e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling assignment_6 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "44d4f9aa4580e7aa51c7db4150ebe0045f496aabf5a407c946fd2cea8b1f653e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44d4f9aa4580e7aa51c7db4150ebe0045f496aabf5a407c946fd2cea8b1f653e", kill_on_drop: false }`
[INFO] [stdout] 44d4f9aa4580e7aa51c7db4150ebe0045f496aabf5a407c946fd2cea8b1f653e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e41010f58c52cc7a8f923ec85879a144af046751ead8beffc4b364e6c248e9cc
[INFO] running `Command { std: "docker" "start" "-a" "e41010f58c52cc7a8f923ec85879a144af046751ead8beffc4b364e6c248e9cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling assignment_6 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "e41010f58c52cc7a8f923ec85879a144af046751ead8beffc4b364e6c248e9cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41010f58c52cc7a8f923ec85879a144af046751ead8beffc4b364e6c248e9cc", kill_on_drop: false }`
[INFO] [stdout] e41010f58c52cc7a8f923ec85879a144af046751ead8beffc4b364e6c248e9cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cdee7ba38421d4646d1c79307cf9194d821a44ed9a52288719235c33b1fda122
[INFO] running `Command { std: "docker" "start" "-a" "cdee7ba38421d4646d1c79307cf9194d821a44ed9a52288719235c33b1fda122", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.33s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/assignment_6-6b80712a128e4057)
[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" "cdee7ba38421d4646d1c79307cf9194d821a44ed9a52288719235c33b1fda122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdee7ba38421d4646d1c79307cf9194d821a44ed9a52288719235c33b1fda122", kill_on_drop: false }`
[INFO] [stdout] cdee7ba38421d4646d1c79307cf9194d821a44ed9a52288719235c33b1fda122