[INFO] cloning repository https://github.com/GrahamClark/collections-exercises-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GrahamClark/collections-exercises-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrahamClark%2Fcollections-exercises-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrahamClark%2Fcollections-exercises-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07217f7bbfeea46e91534db8ae932919ea060e90
[INFO] testing GrahamClark/collections-exercises-rust against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrahamClark%2Fcollections-exercises-rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GrahamClark/collections-exercises-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/GrahamClark/collections-exercises-rust
[INFO] finished tweaking git repo https://github.com/GrahamClark/collections-exercises-rust
[INFO] tweaked toml for git repo https://github.com/GrahamClark/collections-exercises-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/GrahamClark/collections-exercises-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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] fd7fd8bfc397b60a9fc0e9be1822659ec01b7f104f18e9a660eb6f7b2809441e
[INFO] running `Command { std: "docker" "start" "-a" "fd7fd8bfc397b60a9fc0e9be1822659ec01b7f104f18e9a660eb6f7b2809441e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd7fd8bfc397b60a9fc0e9be1822659ec01b7f104f18e9a660eb6f7b2809441e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd7fd8bfc397b60a9fc0e9be1822659ec01b7f104f18e9a660eb6f7b2809441e", kill_on_drop: false }`
[INFO] [stdout] fd7fd8bfc397b60a9fc0e9be1822659ec01b7f104f18e9a660eb6f7b2809441e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 753d51590de9426e6ef7ebd4217a6e66e650ed3647ce0a5316f50720bf9f3a27
[INFO] running `Command { std: "docker" "start" "-a" "753d51590de9426e6ef7ebd4217a6e66e650ed3647ce0a5316f50720bf9f3a27", kill_on_drop: false }`
[INFO] [stderr]    Compiling collections_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "753d51590de9426e6ef7ebd4217a6e66e650ed3647ce0a5316f50720bf9f3a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "753d51590de9426e6ef7ebd4217a6e66e650ed3647ce0a5316f50720bf9f3a27", kill_on_drop: false }`
[INFO] [stdout] 753d51590de9426e6ef7ebd4217a6e66e650ed3647ce0a5316f50720bf9f3a27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] d723b3bc808985f01e2d9b840c77566c8df3caa61a3683b9c02889205efc34e2
[INFO] running `Command { std: "docker" "start" "-a" "d723b3bc808985f01e2d9b840c77566c8df3caa61a3683b9c02889205efc34e2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling collections_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "d723b3bc808985f01e2d9b840c77566c8df3caa61a3683b9c02889205efc34e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d723b3bc808985f01e2d9b840c77566c8df3caa61a3683b9c02889205efc34e2", kill_on_drop: false }`
[INFO] [stdout] d723b3bc808985f01e2d9b840c77566c8df3caa61a3683b9c02889205efc34e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] c37fdc479045f4653dad3ad5fb053dc384e9f6076e6cfdceb10124563810a57a
[INFO] running `Command { std: "docker" "start" "-a" "c37fdc479045f4653dad3ad5fb053dc384e9f6076e6cfdceb10124563810a57a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 35.83s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collections_exercises-ddd7328907951281)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collections_exercises-04445775c464ddbf)
[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] [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] [stderr]    Doc-tests collections_exercises
[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" "c37fdc479045f4653dad3ad5fb053dc384e9f6076e6cfdceb10124563810a57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c37fdc479045f4653dad3ad5fb053dc384e9f6076e6cfdceb10124563810a57a", kill_on_drop: false }`
[INFO] [stdout] c37fdc479045f4653dad3ad5fb053dc384e9f6076e6cfdceb10124563810a57a