[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#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetalRain%2Fsolver" "/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/MetalRain/solver on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 110bb13528927b1fdf7bf3ef43d734eb9f7dbeefb6cd64a0c9b0bd1ea55df438
[INFO] running `Command { std: "docker" "start" "-a" "110bb13528927b1fdf7bf3ef43d734eb9f7dbeefb6cd64a0c9b0bd1ea55df438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "110bb13528927b1fdf7bf3ef43d734eb9f7dbeefb6cd64a0c9b0bd1ea55df438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110bb13528927b1fdf7bf3ef43d734eb9f7dbeefb6cd64a0c9b0bd1ea55df438", kill_on_drop: false }`
[INFO] [stdout] 110bb13528927b1fdf7bf3ef43d734eb9f7dbeefb6cd64a0c9b0bd1ea55df438
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0e3533ea9a954c75d3549e5903c68831bc9b1a2f178c0cbdc06f229396fb0e8
[INFO] running `Command { std: "docker" "start" "-a" "e0e3533ea9a954c75d3549e5903c68831bc9b1a2f178c0cbdc06f229396fb0e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "e0e3533ea9a954c75d3549e5903c68831bc9b1a2f178c0cbdc06f229396fb0e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e3533ea9a954c75d3549e5903c68831bc9b1a2f178c0cbdc06f229396fb0e8", kill_on_drop: false }`
[INFO] [stdout] e0e3533ea9a954c75d3549e5903c68831bc9b1a2f178c0cbdc06f229396fb0e8
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b457571d03ce3406b2bbef5eddeeac70419fd8ef2f3bf7aeef076928a04a9e99
[INFO] running `Command { std: "docker" "start" "-a" "b457571d03ce3406b2bbef5eddeeac70419fd8ef2f3bf7aeef076928a04a9e99", kill_on_drop: false }`
[INFO] [stderr]    Compiling solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "b457571d03ce3406b2bbef5eddeeac70419fd8ef2f3bf7aeef076928a04a9e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b457571d03ce3406b2bbef5eddeeac70419fd8ef2f3bf7aeef076928a04a9e99", kill_on_drop: false }`
[INFO] [stdout] b457571d03ce3406b2bbef5eddeeac70419fd8ef2f3bf7aeef076928a04a9e99
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 268dcd38c825563d2402c9728f764f47fcac90d0b9e2d1a6a24ac637aea6e747
[INFO] running `Command { std: "docker" "start" "-a" "268dcd38c825563d2402c9728f764f47fcac90d0b9e2d1a6a24ac637aea6e747", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/solver-bbb91fb0315f1559)
[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" "268dcd38c825563d2402c9728f764f47fcac90d0b9e2d1a6a24ac637aea6e747", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "268dcd38c825563d2402c9728f764f47fcac90d0b9e2d1a6a24ac637aea6e747", kill_on_drop: false }`
[INFO] [stdout] 268dcd38c825563d2402c9728f764f47fcac90d0b9e2d1a6a24ac637aea6e747