[INFO] cloning repository https://github.com/MetalRain/solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MetalRain/solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetalRain%2Fsolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetalRain%2Fsolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b1df60a743839aee79e6a16a401e251b0986f5a
[INFO] testing MetalRain/solver against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetalRain%2Fsolver" "/workspace/builds/worker-34/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-34/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MetalRain/solver 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/MetalRain/solver
[INFO] finished tweaking git repo https://github.com/MetalRain/solver
[INFO] tweaked toml for git repo https://github.com/MetalRain/solver written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate git repo https://github.com/MetalRain/solver 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] 143bf65f01a339c5d26090b30497f0bf4caa46b794b9c17905022a7a5db05925
[INFO] running `Command { std: "docker" "start" "-a" "143bf65f01a339c5d26090b30497f0bf4caa46b794b9c17905022a7a5db05925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "143bf65f01a339c5d26090b30497f0bf4caa46b794b9c17905022a7a5db05925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "143bf65f01a339c5d26090b30497f0bf4caa46b794b9c17905022a7a5db05925", kill_on_drop: false }`
[INFO] [stdout] 143bf65f01a339c5d26090b30497f0bf4caa46b794b9c17905022a7a5db05925
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] f10a83d55713d248cf9295724968bc37e7e7843728c2f04d44b781ed3e0866c1
[INFO] running `Command { std: "docker" "start" "-a" "f10a83d55713d248cf9295724968bc37e7e7843728c2f04d44b781ed3e0866c1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "f10a83d55713d248cf9295724968bc37e7e7843728c2f04d44b781ed3e0866c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f10a83d55713d248cf9295724968bc37e7e7843728c2f04d44b781ed3e0866c1", kill_on_drop: false }`
[INFO] [stdout] f10a83d55713d248cf9295724968bc37e7e7843728c2f04d44b781ed3e0866c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] 775b6b5f45218585509d5e0ae22e5bef5d205f548261c3a8bf9b192d8d7ca5b7
[INFO] running `Command { std: "docker" "start" "-a" "775b6b5f45218585509d5e0ae22e5bef5d205f548261c3a8bf9b192d8d7ca5b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "775b6b5f45218585509d5e0ae22e5bef5d205f548261c3a8bf9b192d8d7ca5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "775b6b5f45218585509d5e0ae22e5bef5d205f548261c3a8bf9b192d8d7ca5b7", kill_on_drop: false }`
[INFO] [stdout] 775b6b5f45218585509d5e0ae22e5bef5d205f548261c3a8bf9b192d8d7ca5b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] c1b2823434cde7c1340b4702a60fbe618639517cedad9c59fdf8f091d2ab9fb2
[INFO] running `Command { std: "docker" "start" "-a" "c1b2823434cde7c1340b4702a60fbe618639517cedad9c59fdf8f091d2ab9fb2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/solver-98bcea1375f571a1)
[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" "c1b2823434cde7c1340b4702a60fbe618639517cedad9c59fdf8f091d2ab9fb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b2823434cde7c1340b4702a60fbe618639517cedad9c59fdf8f091d2ab9fb2", kill_on_drop: false }`
[INFO] [stdout] c1b2823434cde7c1340b4702a60fbe618639517cedad9c59fdf8f091d2ab9fb2