[INFO] fetching crate json-fmt 0.2.1...
[INFO] testing json-fmt-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate json-fmt 0.2.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate json-fmt 0.2.1 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 json-fmt 0.2.1
[INFO] finished tweaking crates.io crate json-fmt 0.2.1
[INFO] tweaked toml for crates.io crate json-fmt 0.2.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate json-fmt 0.2.1 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 2ccbea8c27b0cc14d305b9db3f2258a38591131c03f4a6664e21c25aa1788002
[INFO] running `Command { std: "docker" "start" "-a" "2ccbea8c27b0cc14d305b9db3f2258a38591131c03f4a6664e21c25aa1788002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ccbea8c27b0cc14d305b9db3f2258a38591131c03f4a6664e21c25aa1788002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ccbea8c27b0cc14d305b9db3f2258a38591131c03f4a6664e21c25aa1788002", kill_on_drop: false }`
[INFO] [stdout] 2ccbea8c27b0cc14d305b9db3f2258a38591131c03f4a6664e21c25aa1788002
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 1517263e4d965888273a33f2434e329133f82ac0def38d401b5866d405d2c3b3
[INFO] running `Command { std: "docker" "start" "-a" "1517263e4d965888273a33f2434e329133f82ac0def38d401b5866d405d2c3b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-fmt v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "1517263e4d965888273a33f2434e329133f82ac0def38d401b5866d405d2c3b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1517263e4d965888273a33f2434e329133f82ac0def38d401b5866d405d2c3b3", kill_on_drop: false }`
[INFO] [stdout] 1517263e4d965888273a33f2434e329133f82ac0def38d401b5866d405d2c3b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 1a0b5ffd973c3f267483429c1a2468d7dbe5691d38ccc22d9efe14bd198407a3
[INFO] running `Command { std: "docker" "start" "-a" "1a0b5ffd973c3f267483429c1a2468d7dbe5691d38ccc22d9efe14bd198407a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-fmt v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "1a0b5ffd973c3f267483429c1a2468d7dbe5691d38ccc22d9efe14bd198407a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a0b5ffd973c3f267483429c1a2468d7dbe5691d38ccc22d9efe14bd198407a3", kill_on_drop: false }`
[INFO] [stdout] 1a0b5ffd973c3f267483429c1a2468d7dbe5691d38ccc22d9efe14bd198407a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 3d0c31e53d387e52277346d5919cf3cebce855c09dafc999d242cf63b7ea8c27
[INFO] running `Command { std: "docker" "start" "-a" "3d0c31e53d387e52277346d5919cf3cebce855c09dafc999d242cf63b7ea8c27", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_fmt-effbcc3f936a4ade)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_format_json_fast ... ok
[INFO] [stdout] test tests::test_format_json ... 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]      Running unittests (/opt/rustwide/target/debug/deps/json_fmt-969224dfe8a4b0c0)
[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 json-fmt
[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" "3d0c31e53d387e52277346d5919cf3cebce855c09dafc999d242cf63b7ea8c27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d0c31e53d387e52277346d5919cf3cebce855c09dafc999d242cf63b7ea8c27", kill_on_drop: false }`
[INFO] [stdout] 3d0c31e53d387e52277346d5919cf3cebce855c09dafc999d242cf63b7ea8c27