[INFO] fetching crate rc_collections 0.1.0... [INFO] testing rc_collections-0.1.0 against master#0e21a27075a8c508f00d1a4430497f17ce93d5c9 for pr-98839 [INFO] extracting crate rc_collections 0.1.0 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate rc_collections 0.1.0 on toolchain 0e21a27075a8c508f00d1a4430497f17ce93d5c9 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate rc_collections 0.1.0 [INFO] finished tweaking crates.io crate rc_collections 0.1.0 [INFO] tweaked toml for crates.io crate rc_collections 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate crates.io crate rc_collections 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 14ff03076df038656a49594e2c0e2fbf1b9bcc621f57fabee59b3b0c66e8c9b7 [INFO] running `Command { std: "docker" "start" "-a" "14ff03076df038656a49594e2c0e2fbf1b9bcc621f57fabee59b3b0c66e8c9b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "14ff03076df038656a49594e2c0e2fbf1b9bcc621f57fabee59b3b0c66e8c9b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14ff03076df038656a49594e2c0e2fbf1b9bcc621f57fabee59b3b0c66e8c9b7", kill_on_drop: false }` [INFO] [stdout] 14ff03076df038656a49594e2c0e2fbf1b9bcc621f57fabee59b3b0c66e8c9b7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 68778391de88f420ac33528643539b08f9e6e7af8f9422cd13d545652d801134 [INFO] running `Command { std: "docker" "start" "-a" "68778391de88f420ac33528643539b08f9e6e7af8f9422cd13d545652d801134", kill_on_drop: false }` [INFO] [stderr] Compiling rc_collections v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.44s [INFO] running `Command { std: "docker" "inspect" "68778391de88f420ac33528643539b08f9e6e7af8f9422cd13d545652d801134", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "68778391de88f420ac33528643539b08f9e6e7af8f9422cd13d545652d801134", kill_on_drop: false }` [INFO] [stdout] 68778391de88f420ac33528643539b08f9e6e7af8f9422cd13d545652d801134 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6894c9f684e8bd1e1fb96f5a384cf10833cfabf603c943b03d8bd5a9350a09fe [INFO] running `Command { std: "docker" "start" "-a" "6894c9f684e8bd1e1fb96f5a384cf10833cfabf603c943b03d8bd5a9350a09fe", kill_on_drop: false }` [INFO] [stderr] Compiling rc_collections v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.78s [INFO] running `Command { std: "docker" "inspect" "6894c9f684e8bd1e1fb96f5a384cf10833cfabf603c943b03d8bd5a9350a09fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6894c9f684e8bd1e1fb96f5a384cf10833cfabf603c943b03d8bd5a9350a09fe", kill_on_drop: false }` [INFO] [stdout] 6894c9f684e8bd1e1fb96f5a384cf10833cfabf603c943b03d8bd5a9350a09fe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f5c2e5d5a3bdac6cc9d9d3175561d45c51f3be0187b36409c0d5082a3aab96d5 [INFO] running `Command { std: "docker" "start" "-a" "f5c2e5d5a3bdac6cc9d9d3175561d45c51f3be0187b36409c0d5082a3aab96d5", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rc_collections-c0e09803b75c7c77) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test test::rrc_string_faster ... ok [INFO] [stdout] test test::rc_vec_faster ... ok [INFO] [stdout] test test::arc_string_faster ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- test::arc_string_faster stdout ---- [INFO] [stdout] ArcString: 0.5664152 [INFO] [stdout] Arc: 0.5460647 [INFO] [stdout] ArcString is -3.7% faster than Arc [INFO] [stdout] thread 'test::arc_string_faster' panicked at 'assertion failed: lib_dur < std_dur', src/test.rs:85:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x558f7ee89da0 - std::backtrace_rs::backtrace::libunwind::trace::h8bb00aa01257e658 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 1: 0x558f7ee89da0 - std::backtrace_rs::backtrace::trace_unsynchronized::hbe32e96be15adfbb [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x558f7ee89da0 - std::sys_common::backtrace::_print_fmt::h9784b9af5bb44c28 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x558f7ee89da0 - ::fmt::h1c87dcc158231dee [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x558f7eead07c - core::fmt::write::h75398e49432c4e9d [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/fmt/mod.rs:1198:17 [INFO] [stdout] 5: 0x558f7ee866c5 - std::io::Write::write_fmt::hf0afd61938d8b31f [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/io/mod.rs:1672:15 [INFO] [stdout] 6: 0x558f7ee8b7e1 - std::sys_common::backtrace::_print::h39d989fb5cda9189 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x558f7ee8b7e1 - std::sys_common::backtrace::print::hafd951f3a156e9b8 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x558f7ee8b7e1 - std::panicking::default_hook::{{closure}}::h3c15d03d8aed3f76 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x558f7ee8b436 - std::panicking::default_hook::h6145e5c2935e997c [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x558f7ee8be83 - std::panicking::rust_panic_with_hook::h4418702214a7a914 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x558f7ee8bd39 - std::panicking::begin_panic_handler::{{closure}}::h0cc75df59cfeee86 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:586:13 [INFO] [stdout] 12: 0x558f7ee8a274 - std::sys_common::backtrace::__rust_end_short_backtrace::hfebe76dc31b59894 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x558f7ee8baa2 - rust_begin_unwind [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x558f7ee1dd33 - core::panicking::panic_fmt::h28c6dc36de3ad6b2 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x558f7ee1dbfd - core::panicking::panic::hc2d11c2340f50dae [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/panicking.rs:48:5 [INFO] [stdout] 16: 0x558f7ee2db94 - rc_collections::test::arc_string_faster::h8e5048b89c79548f [INFO] [stdout] at /opt/rustwide/workdir/src/test.rs:85:5 [INFO] [stdout] 17: 0x558f7ee2d4da - rc_collections::test::arc_string_faster::{{closure}}::hb9b197c3b3dc4eba [INFO] [stdout] at /opt/rustwide/workdir/src/test.rs:60:1 [INFO] [stdout] 18: 0x558f7ee2ee9e - core::ops::function::FnOnce::call_once::hcf0868be93beeff2 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 19: 0x558f7ee651c3 - core::ops::function::FnOnce::call_once::hce3bf1b84d649375 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x558f7ee651c3 - test::__rust_begin_short_backtrace::h268c4dff1fdc08d8 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/test/src/lib.rs:572:5 [INFO] [stdout] 21: 0x558f7ee63fac - as core::ops::function::FnOnce>::call_once::h77064d56d798d725 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 22: 0x558f7ee63fac - as core::ops::function::FnOnce<()>>::call_once::h362603611fd702ef [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 23: 0x558f7ee63fac - std::panicking::try::do_call::hc24e8889c40c0b88 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:492:40 [INFO] [stdout] 24: 0x558f7ee63fac - std::panicking::try::h64fd9954f6422690 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:456:19 [INFO] [stdout] 25: 0x558f7ee63fac - std::panic::catch_unwind::h8590ab8b8c78e131 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panic.rs:137:14 [INFO] [stdout] 26: 0x558f7ee63fac - test::run_test_in_process::hd8ca038d3f817f7d [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/test/src/lib.rs:595:18 [INFO] [stdout] 27: 0x558f7ee63fac - test::run_test::run_test_inner::{{closure}}::h57a8a429b5e58c39 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/test/src/lib.rs:489:39 [INFO] [stdout] 28: 0x558f7ee2ff1c - test::run_test::run_test_inner::{{closure}}::h72dbbb6bf3813446 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/test/src/lib.rs:516:37 [INFO] [stdout] 29: 0x558f7ee2ff1c - std::sys_common::backtrace::__rust_begin_short_backtrace::h916790c31ecb4ff9 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 30: 0x558f7ee35eff - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h4ffbab0d0d8ad2ca [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/thread/mod.rs:505:17 [INFO] [stdout] 31: 0x558f7ee35eff - as core::ops::function::FnOnce<()>>::call_once::he8df5d343786542a [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 32: 0x558f7ee35eff - std::panicking::try::do_call::h80e54b75371d89cf [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:492:40 [INFO] [stdout] 33: 0x558f7ee35eff - std::panicking::try::h1b15ecfa1d32df7a [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:456:19 [INFO] [stdout] 34: 0x558f7ee35eff - std::panic::catch_unwind::h993ecf1ae87ebd59 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panic.rs:137:14 [INFO] [stdout] 35: 0x558f7ee35eff - std::thread::Builder::spawn_unchecked_::{{closure}}::h23926ef7367e9afd [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/thread/mod.rs:504:30 [INFO] [stdout] 36: 0x558f7ee35eff - core::ops::function::FnOnce::call_once{{vtable.shim}}::h93ce9dab9bcb8d25 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 37: 0x558f7ee903f3 - as core::ops::function::FnOnce>::call_once::h7fdba1c346e6c483 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 38: 0x558f7ee903f3 - as core::ops::function::FnOnce>::call_once::h8839b4becacc6e1e [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 39: 0x558f7ee903f3 - std::sys::unix::thread::Thread::new::thread_start::h5077fd2da854c080 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 40: 0x7f5a17d63609 - start_thread [INFO] [stdout] 41: 0x7f5a17b33133 - clone [INFO] [stdout] 42: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] test::arc_string_faster [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.76s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `Command { std: "docker" "inspect" "f5c2e5d5a3bdac6cc9d9d3175561d45c51f3be0187b36409c0d5082a3aab96d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f5c2e5d5a3bdac6cc9d9d3175561d45c51f3be0187b36409c0d5082a3aab96d5", kill_on_drop: false }` [INFO] [stdout] f5c2e5d5a3bdac6cc9d9d3175561d45c51f3be0187b36409c0d5082a3aab96d5