[INFO] crate tracing-core 0.1.10 is already in cache
[INFO] testing tracing-core-0.1.10 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate tracing-core 0.1.10 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tracing-core 0.1.10 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tracing-core 0.1.10
[INFO] finished tweaking crates.io crate tracing-core 0.1.10
[INFO] tweaked toml for crates.io crate tracing-core 0.1.10 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stdout] 8228b2df8da5e05c3668af86f6d6f33b67b5a84a5f90b0d6c3d1f6346fc755e6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8228b2df8da5e05c3668af86f6d6f33b67b5a84a5f90b0d6c3d1f6346fc755e6"`
[INFO] [stderr]    Compiling tracing-core v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "8228b2df8da5e05c3668af86f6d6f33b67b5a84a5f90b0d6c3d1f6346fc755e6"`
[INFO] running `"docker" "rm" "-f" "8228b2df8da5e05c3668af86f6d6f33b67b5a84a5f90b0d6c3d1f6346fc755e6"`
[INFO] [stdout] 8228b2df8da5e05c3668af86f6d6f33b67b5a84a5f90b0d6c3d1f6346fc755e6
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fd9a875ee16f786421a7c62dcff838b38c35a7aac65d7a6149b811f471e0aaf4
[INFO] running `"docker" "start" "-a" "fd9a875ee16f786421a7c62dcff838b38c35a7aac65d7a6149b811f471e0aaf4"`
[INFO] [stderr]    Compiling tracing-core v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `"docker" "inspect" "fd9a875ee16f786421a7c62dcff838b38c35a7aac65d7a6149b811f471e0aaf4"`
[INFO] running `"docker" "rm" "-f" "fd9a875ee16f786421a7c62dcff838b38c35a7aac65d7a6149b811f471e0aaf4"`
[INFO] [stdout] fd9a875ee16f786421a7c62dcff838b38c35a7aac65d7a6149b811f471e0aaf4
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3b6336923bbf1636ec50121bb04dfa4f09215991fa42b271985de899126d297e
[INFO] running `"docker" "start" "-a" "3b6336923bbf1636ec50121bb04dfa4f09215991fa42b271985de899126d297e"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tracing_core-ce7c950313e68beb
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test dispatcher::test::default_no_subscriber ... ok
[INFO] [stdout] test dispatcher::test::default_dispatch ... ok
[INFO] [stdout] test dispatcher::test::dispatch_downcasts ... ok
[INFO] [stdout] test dispatcher::test::dispatch_is ... ok
[INFO] [stdout] test dispatcher::test::events_dont_infinite_loop ... ok
[INFO] [stdout] test dispatcher::test::spans_dont_infinite_loop ... ok
[INFO] [stdout] test field::test::empty_fields_are_skipped ... ok
[INFO] [stdout] test field::test::empty_value_set_is_empty ... ok
[INFO] [stdout] test field::test::record_debug_fn ... ok
[INFO] [stdout] test field::test::sparse_value_sets_are_not_empty ... ok
[INFO] [stdout] test field::test::value_set_with_no_values_is_empty ... ok
[INFO] [stdout] test metadata::tests::level_from_str ... ok
[INFO] [stdout] test field::test::value_sets_with_fields_from_other_callsites_are_empty ... ok
[INFO] [stdout] test field::test::fields_from_other_callsets_are_skipped ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dispatch-f3127823f9068bc0
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/global_dispatch-652a7018eb96eb89
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test set_default_dispatch ... ok
[INFO] [stdout] test nested_set_default ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test global_dispatch ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/macros-4370366dd91e87f9
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test metadata_macro_api ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tracing-core
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/subscriber.rs - subscriber::Subscriber::record (line 217) ... ignored
[INFO] [stdout] test src/lib.rs - identify_callsite (line 105) ... ok
[INFO] [stdout] test src/dispatcher.rs - dispatcher (line 83) ... ok
[INFO] [stdout] test src/field.rs - field::Visit (line 111) ... ok
[INFO] [stdout] test src/lib.rs - metadata (line 141) ... ok
[INFO] [stdout] test src/field.rs - field::Visit (line 142) ... ok
[INFO] [stdout] test src/dispatcher.rs - dispatcher (line 25) ... ok
[INFO] [stdout] test src/dispatcher.rs - dispatcher (line 48) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3b6336923bbf1636ec50121bb04dfa4f09215991fa42b271985de899126d297e"`
[INFO] running `"docker" "rm" "-f" "3b6336923bbf1636ec50121bb04dfa4f09215991fa42b271985de899126d297e"`
[INFO] [stdout] 3b6336923bbf1636ec50121bb04dfa4f09215991fa42b271985de899126d297e