[INFO] fetching crate forest_json_utils 0.1.1...
[INFO] testing forest_json_utils-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate forest_json_utils 0.1.1 into /workspace/builds/worker-115/source
[INFO] validating manifest of crates.io crate forest_json_utils 0.1.1 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 forest_json_utils 0.1.1
[INFO] finished tweaking crates.io crate forest_json_utils 0.1.1
[INFO] tweaked toml for crates.io crate forest_json_utils 0.1.1 written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 2d73fbbd0731a8e71e2166c23191ecdd5b819d94f23e23b8ad1dd93a65828a00
[INFO] running `Command { std: "docker" "start" "-a" "2d73fbbd0731a8e71e2166c23191ecdd5b819d94f23e23b8ad1dd93a65828a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d73fbbd0731a8e71e2166c23191ecdd5b819d94f23e23b8ad1dd93a65828a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d73fbbd0731a8e71e2166c23191ecdd5b819d94f23e23b8ad1dd93a65828a00", kill_on_drop: false }`
[INFO] [stdout] 2d73fbbd0731a8e71e2166c23191ecdd5b819d94f23e23b8ad1dd93a65828a00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 591c90ff804cdd584512f96698e83537305cc1a1fd47fef08b2fb13da7e6f38b
[INFO] running `Command { std: "docker" "start" "-a" "591c90ff804cdd584512f96698e83537305cc1a1fd47fef08b2fb13da7e6f38b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling forest_json_utils v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "591c90ff804cdd584512f96698e83537305cc1a1fd47fef08b2fb13da7e6f38b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "591c90ff804cdd584512f96698e83537305cc1a1fd47fef08b2fb13da7e6f38b", kill_on_drop: false }`
[INFO] [stdout] 591c90ff804cdd584512f96698e83537305cc1a1fd47fef08b2fb13da7e6f38b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 6974d281d348e1e23128c78d630e9230fa7b7518a1f96e8c8aa3f78963bcbee0
[INFO] running `Command { std: "docker" "start" "-a" "6974d281d348e1e23128c78d630e9230fa7b7518a1f96e8c8aa3f78963bcbee0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling forest_json_utils v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.12s
[INFO] running `Command { std: "docker" "inspect" "6974d281d348e1e23128c78d630e9230fa7b7518a1f96e8c8aa3f78963bcbee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6974d281d348e1e23128c78d630e9230fa7b7518a1f96e8c8aa3f78963bcbee0", kill_on_drop: false }`
[INFO] [stdout] 6974d281d348e1e23128c78d630e9230fa7b7518a1f96e8c8aa3f78963bcbee0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] a9670ae86f9fdc7d90437ae54c60579de10fc2043a187ceaf51db990446cae22
[INFO] running `Command { std: "docker" "start" "-a" "a9670ae86f9fdc7d90437ae54c60579de10fc2043a187ceaf51db990446cae22", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/forest_json_utils-ac91634b04d87d78)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::serialize_through_other ... ok
[INFO] [stdout] test tests::standard_vec ... ok
[INFO] [stdout] test tests::test_json_basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests forest_json_utils
[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" "a9670ae86f9fdc7d90437ae54c60579de10fc2043a187ceaf51db990446cae22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9670ae86f9fdc7d90437ae54c60579de10fc2043a187ceaf51db990446cae22", kill_on_drop: false }`
[INFO] [stdout] a9670ae86f9fdc7d90437ae54c60579de10fc2043a187ceaf51db990446cae22