[INFO] fetching crate log4rs 0.12.0...
[INFO] testing log4rs-0.12.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate log4rs 0.12.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate log4rs 0.12.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log4rs 0.12.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate log4rs 0.12.0
[INFO] tweaked toml for crates.io crate log4rs 0.12.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate log4rs 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 547969aecc6939c5fc2c037d5a83611083142622512e679962997ecedf8a85c7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "547969aecc6939c5fc2c037d5a83611083142622512e679962997ecedf8a85c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "547969aecc6939c5fc2c037d5a83611083142622512e679962997ecedf8a85c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547969aecc6939c5fc2c037d5a83611083142622512e679962997ecedf8a85c7", kill_on_drop: false }`
[INFO] [stdout] 547969aecc6939c5fc2c037d5a83611083142622512e679962997ecedf8a85c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ad7a6880b4fcbc939721d2c1e5d3f60aa9f8c0e4b19117604a1fd9a81b854253
[INFO] running `Command { std: "docker" "start" "-a" "ad7a6880b4fcbc939721d2c1e5d3f60aa9f8c0e4b19117604a1fd9a81b854253", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling dtoa v0.4.5
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling arc-swap v0.4.5
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling serde_json v1.0.50
[INFO] [stderr]    Compiling serde-value v0.6.0
[INFO] [stderr]    Compiling serde_yaml v0.8.11
[INFO] [stderr]    Compiling log4rs v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.05s
[INFO] running `Command { std: "docker" "inspect" "ad7a6880b4fcbc939721d2c1e5d3f60aa9f8c0e4b19117604a1fd9a81b854253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad7a6880b4fcbc939721d2c1e5d3f60aa9f8c0e4b19117604a1fd9a81b854253", kill_on_drop: false }`
[INFO] [stdout] ad7a6880b4fcbc939721d2c1e5d3f60aa9f8c0e4b19117604a1fd9a81b854253
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2036e71afb21cc81913e3bef6b703ad20edcb37fd61ce0d00756ae7184f26bc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d2036e71afb21cc81913e3bef6b703ad20edcb37fd61ce0d00756ae7184f26bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling streaming-stats v0.2.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling log4rs v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.39s
[INFO] running `Command { std: "docker" "inspect" "d2036e71afb21cc81913e3bef6b703ad20edcb37fd61ce0d00756ae7184f26bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2036e71afb21cc81913e3bef6b703ad20edcb37fd61ce0d00756ae7184f26bc", kill_on_drop: false }`
[INFO] [stdout] d2036e71afb21cc81913e3bef6b703ad20edcb37fd61ce0d00756ae7184f26bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5adf00c427b0c71ef7da1cd5f8d24f945024d443fa584fa8b885bb9d50c2f5aa
[INFO] running `Command { std: "docker" "start" "-a" "5adf00c427b0c71ef7da1cd5f8d24f945024d443fa584fa8b885bb9d50c2f5aa", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/log4rs-746a1bd078973e02
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test append::rolling_file::policy::compound::roll::fixed_window::test::unsupported_gzip ... ignored
[INFO] [stdout] test encode::json::test::default ... ok
[INFO] [stdout] test append::rolling_file::policy::compound::roll::fixed_window::test::rotation_no_trivial_base ... ok
[INFO] [stdout] test append::rolling_file::policy::compound::roll::fixed_window::test::create_archive_unvaried ... ok
[INFO] [stdout] test append::rolling_file::test::deserialize ... ok
[INFO] [stdout] test append::rolling_file::test::truncate ... ok
[INFO] [stdout] test config::test::check_logger_name ... ok
[INFO] [stdout] test encode::pattern::tests::custom_date_format ... ok
[INFO] [stdout] test append::file::test::append_false ... ok
[INFO] [stdout] test encode::pattern::tests::escaped_chars ... ok
[INFO] [stdout] test encode::pattern::tests::default_okay ... ok
[INFO] [stdout] test append::rolling_file::policy::compound::roll::fixed_window::test::supported_gzip ... ok
[INFO] [stdout] test append::file::test::create_directories ... ok
[INFO] [stdout] test append::rolling_file::policy::compound::roll::fixed_window::test::create_archive_varied ... ok
[INFO] [stdout] test encode::pattern::tests::log ... ok
[INFO] [stdout] test encode::pattern::tests::process_id ... ok
[INFO] [stdout] test encode::pattern::tests::quote_braces_with_backslash ... ok
[INFO] [stdout] test encode::pattern::tests::mdc_missing_custom ... ok
[INFO] [stdout] test encode::pattern::tests::right_align_formatter ... ok
[INFO] [stdout] test encode::pattern::tests::right_align ... ok
[INFO] [stdout] test append::rolling_file::test::append ... ok
[INFO] [stdout] test encode::pattern::tests::unclosed_delimiter ... ok
[INFO] [stdout] normal styled styled2 normal
[INFO] [stdout] test encode::pattern::tests::mdc ... ok
[INFO] [stdout] test encode::pattern::tests::left_align ... ok
[INFO] [stdout] test encode::pattern::tests::mdc_missing_default ... ok
[INFO] [stdout] test encode::pattern::tests::thread_id_field ... ok
[INFO] [stdout] test encode::pattern::tests::timezones ... ok
[INFO] [stdout] test encode::pattern::tests::left_align_formatter ... ok
[INFO] [stdout] test encode::pattern::tests::invalid_formatter ... ok
[INFO] [stdout] test encode::writer::ansi::test::basic ... ok
[INFO] [stdout] test encode::writer::console::test::basic ... ok
[INFO] [stdout] test encode::pattern::tests::named_thread ... ok
[INFO] [stdout] test append::rolling_file::policy::compound::roll::fixed_window::test::rotation ... ok
[INFO] [stdout] test encode::pattern::tests::unescaped_parens ... ok
[INFO] [stdout] test file::test::empty ... ok
[INFO] [stdout] test test::enabled ... ok
[INFO] [stdout] test file::test::full_deserialize ... ok
[INFO] [stdout] test encode::pattern::tests::unnamed_thread ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests log4rs
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 145) ... ok
[INFO] [stdout] test src/lib.rs - (line 136) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5adf00c427b0c71ef7da1cd5f8d24f945024d443fa584fa8b885bb9d50c2f5aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5adf00c427b0c71ef7da1cd5f8d24f945024d443fa584fa8b885bb9d50c2f5aa", kill_on_drop: false }`
[INFO] [stdout] 5adf00c427b0c71ef7da1cd5f8d24f945024d443fa584fa8b885bb9d50c2f5aa