[INFO] fetching crate mtlog 0.1.4... [INFO] testing mtlog-0.1.4 against 1.82.0 for beta-1.83-1 [INFO] extracting crate mtlog 0.1.4 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate mtlog 0.1.4 on toolchain 1.82.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.82.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mtlog 0.1.4 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate mtlog 0.1.4 [INFO] tweaked toml for crates.io crate mtlog 0.1.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate mtlog 0.1.4 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" "+1.82.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0bac8e63b335fd58d41be9ae05587974c9a53f6122a567810acbff17222dc943 [INFO] running `Command { std: "docker" "start" "-a" "0bac8e63b335fd58d41be9ae05587974c9a53f6122a567810acbff17222dc943", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0bac8e63b335fd58d41be9ae05587974c9a53f6122a567810acbff17222dc943", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0bac8e63b335fd58d41be9ae05587974c9a53f6122a567810acbff17222dc943", kill_on_drop: false }` [INFO] [stdout] 0bac8e63b335fd58d41be9ae05587974c9a53f6122a567810acbff17222dc943 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 01995cc1cf9ffd522195514ab6bab291af771b0d7fac039cfec2ffdc361a3abd [INFO] running `Command { std: "docker" "start" "-a" "01995cc1cf9ffd522195514ab6bab291af771b0d7fac039cfec2ffdc361a3abd", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Compiling autocfg v1.4.0 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Compiling iana-time-zone v0.1.61 [INFO] [stderr] Compiling log v0.4.22 [INFO] [stderr] Compiling colored v2.1.0 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling uuid v1.11.0 [INFO] [stderr] Compiling chrono v0.4.38 [INFO] [stderr] Compiling mtlog v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.80s [INFO] running `Command { std: "docker" "inspect" "01995cc1cf9ffd522195514ab6bab291af771b0d7fac039cfec2ffdc361a3abd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01995cc1cf9ffd522195514ab6bab291af771b0d7fac039cfec2ffdc361a3abd", kill_on_drop: false }` [INFO] [stdout] 01995cc1cf9ffd522195514ab6bab291af771b0d7fac039cfec2ffdc361a3abd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ac2687abbb34bf55f29a5191cee4ce14d4001a09fa1adadda1ebe66a457bf3b2 [INFO] running `Command { std: "docker" "start" "-a" "ac2687abbb34bf55f29a5191cee4ce14d4001a09fa1adadda1ebe66a457bf3b2", kill_on_drop: false }` [INFO] [stderr] Compiling mtlog v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.58s [INFO] running `Command { std: "docker" "inspect" "ac2687abbb34bf55f29a5191cee4ce14d4001a09fa1adadda1ebe66a457bf3b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac2687abbb34bf55f29a5191cee4ce14d4001a09fa1adadda1ebe66a457bf3b2", kill_on_drop: false }` [INFO] [stdout] ac2687abbb34bf55f29a5191cee4ce14d4001a09fa1adadda1ebe66a457bf3b2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 95042a435dfa4596f9f22b2727cd745e0826b9836cadcba0cbddf3afefa14903 [INFO] running `Command { std: "docker" "start" "-a" "95042a435dfa4596f9f22b2727cd745e0826b9836cadcba0cbddf3afefa14903", 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/mtlog-95609aa03b5e0b4b) [INFO] [stderr] Doc-tests mtlog [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test log_writer::test_log_stdout ... ok [INFO] [stdout] test log_writer::test_log_file ... 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] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - (line 12) ... ok [INFO] [stdout] test src/lib.rs - (line 46) ... FAILED [INFO] [stdout] test src/lib.rs - (line 22) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 46) stdout ---- [INFO] [stdout] Test executable failed (exit status: 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at src/lib.rs:15:1: [INFO] [stdout] assertion failed: std::fs::read_to_string("/tmp/app.log").unwrap().ends_with("Hello, world!\n") [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5b3f6307ecba - std::backtrace_rs::backtrace::libunwind::trace::h99efb0985cae5d78 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x5b3f6307ecba - std::backtrace_rs::backtrace::trace_unsynchronized::he2c1aa63b3f7fad8 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5b3f6307ecba - std::sys::backtrace::_print_fmt::h8a221d40f5e0f88b [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5b3f6307ecba - ::fmt::h304520fd6a30aa07 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5b3f6309bedb - core::fmt::rt::Argument::fmt::h5da9c218ec984eaf [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x5b3f6309bedb - core::fmt::write::hf5713710ce10ff22 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x5b3f6307c893 - std::io::Write::write_fmt::hda708db57927dacf [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x5b3f6307fe62 - std::sys::backtrace::BacktraceLock::print::hbcdbec4d97c91528 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x5b3f6307fe62 - std::panicking::default_hook::{{closure}}::he1ad87607d0c11c5 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x5b3f6307face - std::panicking::default_hook::h81c8cd2e7c59ee33 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:293:9 [INFO] [stdout] 10: 0x5b3f6308065f - std::panicking::rust_panic_with_hook::had2118629c312a4a [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:797:13 [INFO] [stdout] 11: 0x5b3f630803a3 - std::panicking::begin_panic_handler::{{closure}}::h7fa5985d111bafa2 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:664:13 [INFO] [stdout] 12: 0x5b3f6307f199 - std::sys::backtrace::__rust_end_short_backtrace::h704d151dbefa09c5 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 13: 0x5b3f63080064 - rust_begin_unwind [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:662:5 [INFO] [stdout] 14: 0x5b3f63006753 - core::panicking::panic_fmt::h3eea515d05f7a35e [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panicking.rs:74:14 [INFO] [stdout] 15: 0x5b3f630067dc - core::panicking::panic::h102d65dbfa674afe [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panicking.rs:148:5 [INFO] [stdout] 16: 0x5b3f6300815f - rust_out::main::_doctest_main_src_lib_rs_46_0::h718d78e25c10256d [INFO] [stdout] 17: 0x5b3f63007e56 - rust_out::main::h30d034c83b0fd0bf [INFO] [stdout] 18: 0x5b3f630074a3 - core::ops::function::FnOnce::call_once::h1f1111cdd8ba67b7 [INFO] [stdout] 19: 0x5b3f63007416 - std::sys::backtrace::__rust_begin_short_backtrace::h2c89f6e8111020c4 [INFO] [stdout] 20: 0x5b3f630073f9 - std::rt::lang_start::{{closure}}::hac1362172fdcbe8d [INFO] [stdout] 21: 0x5b3f63078aa0 - core::ops::function::impls:: for &F>::call_once::h08ecba131ab90ec4 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/ops/function.rs:284:13 [INFO] [stdout] 22: 0x5b3f63078aa0 - std::panicking::try::do_call::hf33a59fd8ce953f4 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:554:40 [INFO] [stdout] 23: 0x5b3f63078aa0 - std::panicking::try::h5005ce80ce949fd8 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:518:19 [INFO] [stdout] 24: 0x5b3f63078aa0 - std::panic::catch_unwind::hfbae19e2e2c5b7ed [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panic.rs:345:14 [INFO] [stdout] 25: 0x5b3f63078aa0 - std::rt::lang_start_internal::{{closure}}::ha0331c3690741813 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/rt.rs:143:48 [INFO] [stdout] 26: 0x5b3f63078aa0 - std::panicking::try::do_call::hcdcbdb616b4d0295 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:554:40 [INFO] [stdout] 27: 0x5b3f63078aa0 - std::panicking::try::h3f2f1725a07d2256 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:518:19 [INFO] [stdout] 28: 0x5b3f63078aa0 - std::panic::catch_unwind::h51869e04b56b2dc3 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panic.rs:345:14 [INFO] [stdout] 29: 0x5b3f63078aa0 - std::rt::lang_start_internal::h4d90db0530245041 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/rt.rs:143:20 [INFO] [stdout] 30: 0x5b3f630073d7 - std::rt::lang_start::h83a9d80ba407559d [INFO] [stdout] 31: 0x5b3f630081b5 - main [INFO] [stdout] 32: 0x7b664d94cd90 - [INFO] [stdout] 33: 0x7b664d94ce40 - __libc_start_main [INFO] [stdout] 34: 0x5b3f63007085 - _start [INFO] [stdout] 35: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 46) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.11s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "95042a435dfa4596f9f22b2727cd745e0826b9836cadcba0cbddf3afefa14903", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "95042a435dfa4596f9f22b2727cd745e0826b9836cadcba0cbddf3afefa14903", kill_on_drop: false }` [INFO] [stdout] 95042a435dfa4596f9f22b2727cd745e0826b9836cadcba0cbddf3afefa14903