[INFO] fetching crate tracing-ndjson 0.2.0...
[INFO] testing tracing-ndjson-0.2.0 against master#e9385f9eea0221ef295a188d49d16f8f5189abf1 for pr-146098
[INFO] extracting crate tracing-ndjson 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate tracing-ndjson 0.2.0
[INFO] finished tweaking crates.io crate tracing-ndjson 0.2.0
[INFO] tweaked toml for crates.io crate tracing-ndjson 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing-ndjson 0.2.0 on toolchain e9385f9eea0221ef295a188d49d16f8f5189abf1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tracing-ndjson 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.49
[INFO] [stderr]   Downloaded ryu v1.0.15
[INFO] [stderr]   Downloaded thiserror v1.0.49
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.4
[INFO] [stderr]   Downloaded iana-time-zone v0.1.57
[INFO] [stderr]   Downloaded proc-macro2 v1.0.68
[INFO] [stderr]   Downloaded tracing-attributes v0.1.26
[INFO] [stderr]   Downloaded smallvec v1.11.1
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.17
[INFO] [stderr]   Downloaded serde_json v1.0.107
[INFO] [stderr]   Downloaded syn v2.0.38
[INFO] [stderr]   Downloaded chrono v0.4.31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9b0a2a4e80d815186e4be45dd59f78add7111444b1a47f835f91892645cbbd7
[INFO] running `Command { std: "docker" "start" "-a" "f9b0a2a4e80d815186e4be45dd59f78add7111444b1a47f835f91892645cbbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9b0a2a4e80d815186e4be45dd59f78add7111444b1a47f835f91892645cbbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9b0a2a4e80d815186e4be45dd59f78add7111444b1a47f835f91892645cbbd7", kill_on_drop: false }`
[INFO] [stdout] f9b0a2a4e80d815186e4be45dd59f78add7111444b1a47f835f91892645cbbd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb65cd3f05bffda61b96aec648a678083cac4ace993d7b471125ff00b5571094
[INFO] running `Command { std: "docker" "start" "-a" "bb65cd3f05bffda61b96aec648a678083cac4ace993d7b471125ff00b5571094", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.68
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling tracing-subscriber v0.3.17
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling tracing-ndjson v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `Command { std: "docker" "inspect" "bb65cd3f05bffda61b96aec648a678083cac4ace993d7b471125ff00b5571094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb65cd3f05bffda61b96aec648a678083cac4ace993d7b471125ff00b5571094", kill_on_drop: false }`
[INFO] [stdout] bb65cd3f05bffda61b96aec648a678083cac4ace993d7b471125ff00b5571094
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f525494fc454d5f6c9f3a8ccf0ecb9bbe1e33805fe50d38ec2ea8ac223cea69
[INFO] running `Command { std: "docker" "start" "-a" "4f525494fc454d5f6c9f3a8ccf0ecb9bbe1e33805fe50d38ec2ea8ac223cea69", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling tracing-ndjson v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "4f525494fc454d5f6c9f3a8ccf0ecb9bbe1e33805fe50d38ec2ea8ac223cea69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f525494fc454d5f6c9f3a8ccf0ecb9bbe1e33805fe50d38ec2ea8ac223cea69", kill_on_drop: false }`
[INFO] [stdout] 4f525494fc454d5f6c9f3a8ccf0ecb9bbe1e33805fe50d38ec2ea8ac223cea69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dd4be616b104717535243ae0d33a706d75443f61d2238863bbe9003113f26d68
[INFO] running `Command { std: "docker" "start" "-a" "dd4be616b104717535243ae0d33a706d75443f61d2238863bbe9003113f26d68", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_ndjson-5c59b6d9ab136bcd)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_nested_spans ... ok
[INFO] [stdout] test tests::test_json_event_formatter ... 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 tracing_ndjson
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Builder (line 148) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dd4be616b104717535243ae0d33a706d75443f61d2238863bbe9003113f26d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd4be616b104717535243ae0d33a706d75443f61d2238863bbe9003113f26d68", kill_on_drop: false }`
[INFO] [stdout] dd4be616b104717535243ae0d33a706d75443f61d2238863bbe9003113f26d68