[INFO] fetching crate write-json 0.1.2...
[INFO] testing write-json-0.1.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate write-json 0.1.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate write-json 0.1.2 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate write-json 0.1.2
[INFO] finished tweaking crates.io crate write-json 0.1.2
[INFO] tweaked toml for crates.io crate write-json 0.1.2 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 203285f0d462ff04a50141fe401a4a7a3c5159f7e10a831379b79e7410d766da
[INFO] running `Command { std: "docker" "start" "-a" "203285f0d462ff04a50141fe401a4a7a3c5159f7e10a831379b79e7410d766da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "203285f0d462ff04a50141fe401a4a7a3c5159f7e10a831379b79e7410d766da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "203285f0d462ff04a50141fe401a4a7a3c5159f7e10a831379b79e7410d766da", kill_on_drop: false }`
[INFO] [stdout] 203285f0d462ff04a50141fe401a4a7a3c5159f7e10a831379b79e7410d766da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee2b643f4fde7bb0d1af1765a3698e54aa12cde8dd71cb8cbb574138e1b72e20
[INFO] running `Command { std: "docker" "start" "-a" "ee2b643f4fde7bb0d1af1765a3698e54aa12cde8dd71cb8cbb574138e1b72e20", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling write-json v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "ee2b643f4fde7bb0d1af1765a3698e54aa12cde8dd71cb8cbb574138e1b72e20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee2b643f4fde7bb0d1af1765a3698e54aa12cde8dd71cb8cbb574138e1b72e20", kill_on_drop: false }`
[INFO] [stdout] ee2b643f4fde7bb0d1af1765a3698e54aa12cde8dd71cb8cbb574138e1b72e20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ab88251b5d53cdea8ea5fb528c1f3f642c699cb8a17f3012d1a8aa889a4076d
[INFO] running `Command { std: "docker" "start" "-a" "0ab88251b5d53cdea8ea5fb528c1f3f642c699cb8a17f3012d1a8aa889a4076d", kill_on_drop: false }`
[INFO] [stderr]    Compiling write-json v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "0ab88251b5d53cdea8ea5fb528c1f3f642c699cb8a17f3012d1a8aa889a4076d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab88251b5d53cdea8ea5fb528c1f3f642c699cb8a17f3012d1a8aa889a4076d", kill_on_drop: false }`
[INFO] [stdout] 0ab88251b5d53cdea8ea5fb528c1f3f642c699cb8a17f3012d1a8aa889a4076d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04eee7802b383b161e71d64cee58bcffbe00f47ffc6f185474de2e75dca17469
[INFO] running `Command { std: "docker" "start" "-a" "04eee7802b383b161e71d64cee58bcffbe00f47ffc6f185474de2e75dca17469", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/write_json-a47e6d7bcb403cec)
[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]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-f5ede4b571182a94)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test string_escaping ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests write-json
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04eee7802b383b161e71d64cee58bcffbe00f47ffc6f185474de2e75dca17469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04eee7802b383b161e71d64cee58bcffbe00f47ffc6f185474de2e75dca17469", kill_on_drop: false }`
[INFO] [stdout] 04eee7802b383b161e71d64cee58bcffbe00f47ffc6f185474de2e75dca17469