[INFO] fetching crate slog 2.8.0-rc.1...
[INFO] testing slog-2.8.0-rc.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate slog 2.8.0-rc.1 into /workspace/builds/worker-4-tc1/source
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate slog 2.8.0-rc.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate slog 2.8.0-rc.1
[INFO] tweaked toml for crates.io crate slog 2.8.0-rc.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slog 2.8.0-rc.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slog 2.8.0-rc.1 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39f8b7560021e5229b21d967678bc2352b434e0a318a053e058dd15e2bd866d7
[INFO] running `Command { std: "docker" "start" "-a" "39f8b7560021e5229b21d967678bc2352b434e0a318a053e058dd15e2bd866d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39f8b7560021e5229b21d967678bc2352b434e0a318a053e058dd15e2bd866d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39f8b7560021e5229b21d967678bc2352b434e0a318a053e058dd15e2bd866d7", kill_on_drop: false }`
[INFO] [stdout] 39f8b7560021e5229b21d967678bc2352b434e0a318a053e058dd15e2bd866d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08335070044d22d2a908e26f02af9d78f10d4dd264da5efce7d7fc890e77f039
[INFO] running `Command { std: "docker" "start" "-a" "08335070044d22d2a908e26f02af9d78f10d4dd264da5efce7d7fc890e77f039", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling slog v2.8.0-rc.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "08335070044d22d2a908e26f02af9d78f10d4dd264da5efce7d7fc890e77f039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08335070044d22d2a908e26f02af9d78f10d4dd264da5efce7d7fc890e77f039", kill_on_drop: false }`
[INFO] [stdout] 08335070044d22d2a908e26f02af9d78f10d4dd264da5efce7d7fc890e77f039
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63570098211f143f98acfbfad6c1b39ed2e33b17c55eee6f97bad11336d6e08a
[INFO] running `Command { std: "docker" "start" "-a" "63570098211f143f98acfbfad6c1b39ed2e33b17c55eee6f97bad11336d6e08a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling slog v2.8.0-rc.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.84s
[INFO] running `Command { std: "docker" "inspect" "63570098211f143f98acfbfad6c1b39ed2e33b17c55eee6f97bad11336d6e08a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63570098211f143f98acfbfad6c1b39ed2e33b17c55eee6f97bad11336d6e08a", kill_on_drop: false }`
[INFO] [stdout] 63570098211f143f98acfbfad6c1b39ed2e33b17c55eee6f97bad11336d6e08a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee2e6e5de2e580f0c05a19e4ced80f07e035ff36ae582f7136ccb7681e46fabf
[INFO] running `Command { std: "docker" "start" "-a" "ee2e6e5de2e580f0c05a19e4ced80f07e035ff36ae582f7136ccb7681e46fabf", 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/slog-438faeda95932328)
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test filter_level_sanity ... ok
[INFO] [stdout] test level_at_least ... ok
[INFO] [stdout] test level_from_str ... ok
[INFO] [stdout] test filter_level_to_string_and_from_str_are_compatible ... ok
[INFO] [stdout] test filter_level_accepts_tests ... ok
[INFO] [stdout] test test_error_tag_wrapper ... ok
[INFO] [stdout] test level_to_string_and_from_str_are_compatible ... ok
[INFO] [stdout] test tests::can_hash_keys ... ok
[INFO] [stdout] test tests::display_and_alternate_display ... ok
[INFO] [stdout] test tests::expressions_fmt ... ok
[INFO] [stdout] test tests::expressions ... ok
[INFO] [stdout] test filter_level_from_str ... ok
[INFO] [stdout] test tests::logger_by_ref ... ok
[INFO] [stdout] test tests::integer_128_types ... ok
[INFO] [stdout] test tests::logger_to_erased ... ok
[INFO] [stdout] test tests::makers ... ok
[INFO] [stdout] test tests::no_imports::test_o_macro_expansion ... ok
[INFO] [stdout] test tests::no_imports::test_slog_o_macro_expansion ... ok
[INFO] [stdout] test tests::simple_logger_erased ... ok
[INFO] [stdout] test tests::std_only::error_box_ref ... ok
[INFO] [stdout] test tests::std_only::error_arc_ref ... ok
[INFO] [stdout] test tests::std_only::error_fmt_no_source ... ok
[INFO] [stdout] test tests::std_only::error_fmt_no_source_last ... ok
[INFO] [stdout] test tests::std_only::error_fmt_no_source_not_last ... ok
[INFO] [stdout] test tests::std_only::error_fmt_two_sources ... ok
[INFO] [stdout] test tests::std_only::error_fmt_single_source ... ok
[INFO] [stdout] test tests::std_only::error_ref ... ok
[INFO] [stdout] test tests::std_only::error_ref_fmt_no_source ... ok
[INFO] [stdout] test tests::std_only::error_ref_fmt_no_source_last ... ok
[INFO] [stdout] test tests::std_only::error_ref_fmt_no_source_not_last ... ok
[INFO] [stdout] test tests::std_only::ioerror_impls_value ... ok
[INFO] [stdout] test tests::std_only::logger_fmt_debug_sanity ... ok
[INFO] [stdout] test tests::std_only::error_ref_fmt_single_source ... ok
[INFO] [stdout] test tests::std_only::error_ref_fmt_two_sources ... ok
[INFO] [stdout] test tests::std_only::multichain ... ok
[INFO] [stdout] test tests::test_never_type_clone ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slog
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/lib.rs - (line 115) ... ignored
[INFO] [stdout] test src/lib.rs - (line 129) ... ignored
[INFO] [stdout] test src/lib.rs - (line 157) ... ignored
[INFO] [stdout] test src/lib.rs - (line 260) ... ignored
[INFO] [stdout] test src/lib.rs - KV (line 3653) ... ignored
[INFO] [stdout] test src/lib.rs - KV (line 3659) ... ignored
[INFO] [stdout] test src/lib.rs - KV (line 3676) ... ok
[INFO] [stdout] test src/lib.rs - Logger<D>::root (line 1143) ... ok
[INFO] [stdout] test src/lib.rs - Value (line 3024) ... ok
[INFO] [stdout] test src/lib.rs - Drain::map (line 1443) ... ok
[INFO] [stdout] test src/lib.rs - (line 246) ... ok
[INFO] [stdout] test src/lib.rs - Logger<D>::new (line 1213) ... ok
[INFO] [stdout] test src/lib.rs - PushFnValue (line 3402) ... ok
[INFO] [stdout] test src/lib.rs - log (line 587) ... ok
[INFO] [stdout] test src/lib.rs - Drain::is_enabled (line 1386) ... ok
[INFO] [stdout] test src/lib.rs - log (line 571) ... ok
[INFO] [stdout] test src/lib.rs - log (line 644) ... ok
[INFO] [stdout] test src/lib.rs - log (line 672) ... ok
[INFO] [stdout] test src/lib.rs - log (line 602) ... ok
[INFO] [stdout] test src/lib.rs - log (line 623) ... ok
[INFO] [stdout] test src/lib.rs - slog_log (line 811) ... ok
[INFO] [stdout] test src/lib.rs - o (line 321) ... ok
[INFO] [stdout] test src/lib.rs - log (line 732) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 6 ignored; 0 measured; 0 filtered out; finished in 2.10s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee2e6e5de2e580f0c05a19e4ced80f07e035ff36ae582f7136ccb7681e46fabf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee2e6e5de2e580f0c05a19e4ced80f07e035ff36ae582f7136ccb7681e46fabf", kill_on_drop: false }`
[INFO] [stdout] ee2e6e5de2e580f0c05a19e4ced80f07e035ff36ae582f7136ccb7681e46fabf