[INFO] fetching crate kvfmt 0.1.5...
[INFO] testing kvfmt-0.1.5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate kvfmt 0.1.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate kvfmt 0.1.5 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 kvfmt 0.1.5
[INFO] finished tweaking crates.io crate kvfmt 0.1.5
[INFO] tweaked toml for crates.io crate kvfmt 0.1.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate kvfmt 0.1.5 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c8a8663b4476c440df16b6e4aee3a8e25c3a4d1e05a2df83de08f7cd607ff72a
[INFO] running `Command { std: "docker" "start" "-a" "c8a8663b4476c440df16b6e4aee3a8e25c3a4d1e05a2df83de08f7cd607ff72a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8a8663b4476c440df16b6e4aee3a8e25c3a4d1e05a2df83de08f7cd607ff72a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a8663b4476c440df16b6e4aee3a8e25c3a4d1e05a2df83de08f7cd607ff72a", kill_on_drop: false }`
[INFO] [stdout] c8a8663b4476c440df16b6e4aee3a8e25c3a4d1e05a2df83de08f7cd607ff72a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c310adb6e8dc024f429e3b6ebe19c49ee42b57d29197173b633aa5558b8ea7c6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c310adb6e8dc024f429e3b6ebe19c49ee42b57d29197173b633aa5558b8ea7c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling kvfmt v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "c310adb6e8dc024f429e3b6ebe19c49ee42b57d29197173b633aa5558b8ea7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c310adb6e8dc024f429e3b6ebe19c49ee42b57d29197173b633aa5558b8ea7c6", kill_on_drop: false }`
[INFO] [stdout] c310adb6e8dc024f429e3b6ebe19c49ee42b57d29197173b633aa5558b8ea7c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5105df56bc05dc020c73290b587f9b6b711af7fdc57ce6caf3e44fa81b7cf07d
[INFO] running `Command { std: "docker" "start" "-a" "5105df56bc05dc020c73290b587f9b6b711af7fdc57ce6caf3e44fa81b7cf07d", kill_on_drop: false }`
[INFO] [stderr]    Compiling kvfmt v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "5105df56bc05dc020c73290b587f9b6b711af7fdc57ce6caf3e44fa81b7cf07d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5105df56bc05dc020c73290b587f9b6b711af7fdc57ce6caf3e44fa81b7cf07d", kill_on_drop: false }`
[INFO] [stdout] 5105df56bc05dc020c73290b587f9b6b711af7fdc57ce6caf3e44fa81b7cf07d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a6aa0cdbc05b77e4d19399e781057d10614154fee5434dcfa038bdaefbaf1ffb
[INFO] running `Command { std: "docker" "start" "-a" "a6aa0cdbc05b77e4d19399e781057d10614154fee5434dcfa038bdaefbaf1ffb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kvfmt-9dacc4028737e209)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kvfmt
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::kv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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] running `Command { std: "docker" "inspect" "a6aa0cdbc05b77e4d19399e781057d10614154fee5434dcfa038bdaefbaf1ffb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6aa0cdbc05b77e4d19399e781057d10614154fee5434dcfa038bdaefbaf1ffb", kill_on_drop: false }`
[INFO] [stdout] a6aa0cdbc05b77e4d19399e781057d10614154fee5434dcfa038bdaefbaf1ffb