[INFO] cloning repository https://github.com/michalkadlubowski/Learning-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michalkadlubowski/Learning-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichalkadlubowski%2FLearning-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichalkadlubowski%2FLearning-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ea4c09f2656e0774d4a6468a0e36ecbfba9da72
[INFO] testing michalkadlubowski/Learning-Rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichalkadlubowski%2FLearning-Rust" "/workspace/builds/worker-96/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-96/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michalkadlubowski/Learning-Rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/michalkadlubowski/Learning-Rust
[INFO] finished tweaking git repo https://github.com/michalkadlubowski/Learning-Rust
[INFO] tweaked toml for git repo https://github.com/michalkadlubowski/Learning-Rust written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] crate git repo https://github.com/michalkadlubowski/Learning-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3c274c1a967972d76081aa60101498fe0e212d64a8f795f8049958ee49e023a
[INFO] running `Command { std: "docker" "start" "-a" "f3c274c1a967972d76081aa60101498fe0e212d64a8f795f8049958ee49e023a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3c274c1a967972d76081aa60101498fe0e212d64a8f795f8049958ee49e023a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3c274c1a967972d76081aa60101498fe0e212d64a8f795f8049958ee49e023a", kill_on_drop: false }`
[INFO] [stdout] f3c274c1a967972d76081aa60101498fe0e212d64a8f795f8049958ee49e023a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 596dec61fb6a4daf65563a159e66604297964e1b801ce3b3b3b6f60b57585b0d
[INFO] running `Command { std: "docker" "start" "-a" "596dec61fb6a4daf65563a159e66604297964e1b801ce3b3b3b6f60b57585b0d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.48s
[INFO] running `Command { std: "docker" "inspect" "596dec61fb6a4daf65563a159e66604297964e1b801ce3b3b3b6f60b57585b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "596dec61fb6a4daf65563a159e66604297964e1b801ce3b3b3b6f60b57585b0d", kill_on_drop: false }`
[INFO] [stdout] 596dec61fb6a4daf65563a159e66604297964e1b801ce3b3b3b6f60b57585b0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c15ced216afecf34342f36968d1f7fcc90a872691b29fb83ac67a2306d3b9ac1
[INFO] running `Command { std: "docker" "start" "-a" "c15ced216afecf34342f36968d1f7fcc90a872691b29fb83ac67a2306d3b9ac1", kill_on_drop: false }`
[INFO] [stderr]    Compiling server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "c15ced216afecf34342f36968d1f7fcc90a872691b29fb83ac67a2306d3b9ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c15ced216afecf34342f36968d1f7fcc90a872691b29fb83ac67a2306d3b9ac1", kill_on_drop: false }`
[INFO] [stdout] c15ced216afecf34342f36968d1f7fcc90a872691b29fb83ac67a2306d3b9ac1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b258723b5ab75f1954bee3e0bb4863317d7e9d813ab16ddc1c2cc06780a1a525
[INFO] running `Command { std: "docker" "start" "-a" "b258723b5ab75f1954bee3e0bb4863317d7e9d813ab16ddc1c2cc06780a1a525", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.36s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/server-c634a747b4069a02)
[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" "b258723b5ab75f1954bee3e0bb4863317d7e9d813ab16ddc1c2cc06780a1a525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b258723b5ab75f1954bee3e0bb4863317d7e9d813ab16ddc1c2cc06780a1a525", kill_on_drop: false }`
[INFO] [stdout] b258723b5ab75f1954bee3e0bb4863317d7e9d813ab16ddc1c2cc06780a1a525