[INFO] cloning repository https://github.com/Adorine/exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Adorine/exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdorine%2Fexercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdorine%2Fexercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5311b8fb39ed1e550388a5ed5a2a4c5c6bd9c392
[INFO] testing Adorine/exercise against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdorine%2Fexercise" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Adorine/exercise on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Adorine/exercise
[INFO] finished tweaking git repo https://github.com/Adorine/exercise
[INFO] tweaked toml for git repo https://github.com/Adorine/exercise written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Adorine/exercise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6d8b2bd46a47aad09403491cec7b15169497bf304bc779f2d2230ead37bf563
[INFO] running `Command { std: "docker" "start" "-a" "b6d8b2bd46a47aad09403491cec7b15169497bf304bc779f2d2230ead37bf563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6d8b2bd46a47aad09403491cec7b15169497bf304bc779f2d2230ead37bf563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6d8b2bd46a47aad09403491cec7b15169497bf304bc779f2d2230ead37bf563", kill_on_drop: false }`
[INFO] [stdout] b6d8b2bd46a47aad09403491cec7b15169497bf304bc779f2d2230ead37bf563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca0fa107a9d889b24a51af568d28a303b7ceafbbd71d7614209ec13c82efdc49
[INFO] running `Command { std: "docker" "start" "-a" "ca0fa107a9d889b24a51af568d28a303b7ceafbbd71d7614209ec13c82efdc49", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling substrate_exercise4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "ca0fa107a9d889b24a51af568d28a303b7ceafbbd71d7614209ec13c82efdc49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca0fa107a9d889b24a51af568d28a303b7ceafbbd71d7614209ec13c82efdc49", kill_on_drop: false }`
[INFO] [stdout] ca0fa107a9d889b24a51af568d28a303b7ceafbbd71d7614209ec13c82efdc49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99b1e169cd77414dd9fb7c4a7b0156cb8c72f2bcec9a043877210b1d7a17f3d4
[INFO] running `Command { std: "docker" "start" "-a" "99b1e169cd77414dd9fb7c4a7b0156cb8c72f2bcec9a043877210b1d7a17f3d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrate_exercise4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "99b1e169cd77414dd9fb7c4a7b0156cb8c72f2bcec9a043877210b1d7a17f3d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99b1e169cd77414dd9fb7c4a7b0156cb8c72f2bcec9a043877210b1d7a17f3d4", kill_on_drop: false }`
[INFO] [stdout] 99b1e169cd77414dd9fb7c4a7b0156cb8c72f2bcec9a043877210b1d7a17f3d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c5cbae5ffd4a69631eb9334c7f9c0d172b28ef00d7c6de7b16bd3bbadfb91acb
[INFO] running `Command { std: "docker" "start" "-a" "c5cbae5ffd4a69631eb9334c7f9c0d172b28ef00d7c6de7b16bd3bbadfb91acb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/substrate_exercise4-b70f9db21b71619b)
[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" "c5cbae5ffd4a69631eb9334c7f9c0d172b28ef00d7c6de7b16bd3bbadfb91acb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5cbae5ffd4a69631eb9334c7f9c0d172b28ef00d7c6de7b16bd3bbadfb91acb", kill_on_drop: false }`
[INFO] [stdout] c5cbae5ffd4a69631eb9334c7f9c0d172b28ef00d7c6de7b16bd3bbadfb91acb