[INFO] fetching crate rserver 0.1.4...
[INFO] testing rserver-0.1.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rserver 0.1.4 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate rserver 0.1.4 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 crates.io crate rserver 0.1.4
[INFO] finished tweaking crates.io crate rserver 0.1.4
[INFO] tweaked toml for crates.io crate rserver 0.1.4 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate crates.io crate rserver 0.1.4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 8537837f69ca4e79b37efe5e91ceb559fa6af8dbffac2ae1f6e1b39a6920a797
[INFO] running `Command { std: "docker" "start" "-a" "8537837f69ca4e79b37efe5e91ceb559fa6af8dbffac2ae1f6e1b39a6920a797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8537837f69ca4e79b37efe5e91ceb559fa6af8dbffac2ae1f6e1b39a6920a797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8537837f69ca4e79b37efe5e91ceb559fa6af8dbffac2ae1f6e1b39a6920a797", kill_on_drop: false }`
[INFO] [stdout] 8537837f69ca4e79b37efe5e91ceb559fa6af8dbffac2ae1f6e1b39a6920a797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 9e11c7fb5200c9d48e6f636cd475e5b0905ae4847f14892aaf7823295bb5e3f0
[INFO] running `Command { std: "docker" "start" "-a" "9e11c7fb5200c9d48e6f636cd475e5b0905ae4847f14892aaf7823295bb5e3f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling rserver v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "9e11c7fb5200c9d48e6f636cd475e5b0905ae4847f14892aaf7823295bb5e3f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e11c7fb5200c9d48e6f636cd475e5b0905ae4847f14892aaf7823295bb5e3f0", kill_on_drop: false }`
[INFO] [stdout] 9e11c7fb5200c9d48e6f636cd475e5b0905ae4847f14892aaf7823295bb5e3f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] e1814517212c00f0e7f6dc2ff2f22d894191bbf634ed227bf67e5af53833393a
[INFO] running `Command { std: "docker" "start" "-a" "e1814517212c00f0e7f6dc2ff2f22d894191bbf634ed227bf67e5af53833393a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rserver v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "e1814517212c00f0e7f6dc2ff2f22d894191bbf634ed227bf67e5af53833393a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1814517212c00f0e7f6dc2ff2f22d894191bbf634ed227bf67e5af53833393a", kill_on_drop: false }`
[INFO] [stdout] e1814517212c00f0e7f6dc2ff2f22d894191bbf634ed227bf67e5af53833393a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 7f84eccb89eb10cb687dc48a6c149336ca16c4ad8be73334ba5336e9de367bbe
[INFO] running `Command { std: "docker" "start" "-a" "7f84eccb89eb10cb687dc48a6c149336ca16c4ad8be73334ba5336e9de367bbe", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rserver-2b5e8c30edc96125)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rserver-00bbc9a54beeffdb)
[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 rserver
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - start_server (line 13) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7f84eccb89eb10cb687dc48a6c149336ca16c4ad8be73334ba5336e9de367bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f84eccb89eb10cb687dc48a6c149336ca16c4ad8be73334ba5336e9de367bbe", kill_on_drop: false }`
[INFO] [stdout] 7f84eccb89eb10cb687dc48a6c149336ca16c4ad8be73334ba5336e9de367bbe