[INFO] fetching crate palaver 0.3.0-alpha.3... [INFO] testing palaver-0.3.0-alpha.3 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296 [INFO] extracting crate palaver 0.3.0-alpha.3 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate palaver 0.3.0-alpha.3 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate palaver 0.3.0-alpha.3 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate palaver 0.3.0-alpha.3 [INFO] tweaked toml for crates.io crate palaver 0.3.0-alpha.3 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate crates.io crate palaver 0.3.0-alpha.3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rle-decode-fast v1.0.1 [INFO] [stderr] Downloaded escargot v0.5.0 [INFO] [stderr] Downloaded heapless v0.5.3 [INFO] [stderr] Downloaded nix v0.16.1 [INFO] [stderr] Downloaded valgrind_request v1.1.0 [INFO] [stderr] Downloaded mach v0.3.2 [INFO] [stderr] Downloaded hex v0.4.1 [INFO] [stderr] Downloaded take_mut v0.2.2 [INFO] [stderr] Downloaded libflate v0.1.27 [INFO] [stderr] Downloaded twox-hash v1.5.0 [INFO] [stderr] Downloaded procfs v0.7.7 [INFO] [stderr] Downloaded as-slice v0.1.2 [INFO] [stderr] Downloaded replace_with v0.1.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 155834f3c817a21858040ef6e3128449ef33476cb8b9b8464b07442c8a63d0d4 [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" "155834f3c817a21858040ef6e3128449ef33476cb8b9b8464b07442c8a63d0d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "155834f3c817a21858040ef6e3128449ef33476cb8b9b8464b07442c8a63d0d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "155834f3c817a21858040ef6e3128449ef33476cb8b9b8464b07442c8a63d0d4", kill_on_drop: false }` [INFO] [stdout] 155834f3c817a21858040ef6e3128449ef33476cb8b9b8464b07442c8a63d0d4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 449e7d0a57443dd7d0fdbf522a3815addf02277e4e2ec24cb1cb82e592a97336 [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" "449e7d0a57443dd7d0fdbf522a3815addf02277e4e2ec24cb1cb82e592a97336", kill_on_drop: false }` [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling take_mut v0.2.2 [INFO] [stderr] Compiling nix v0.16.1 [INFO] [stderr] Compiling adler32 v1.0.4 [INFO] [stderr] Compiling heapless v0.5.3 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling hex v0.4.1 [INFO] [stderr] Compiling replace_with v0.1.5 [INFO] [stderr] Compiling twox-hash v1.5.0 [INFO] [stderr] Compiling generic-array v0.13.2 [INFO] [stderr] Compiling hash32 v0.1.1 [INFO] [stderr] Compiling as-slice v0.1.2 [INFO] [stderr] Compiling libflate v0.1.27 [INFO] [stderr] Compiling procfs v0.7.7 [INFO] [stderr] Compiling palaver v0.3.0-alpha.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.53s [INFO] running `Command { std: "docker" "inspect" "449e7d0a57443dd7d0fdbf522a3815addf02277e4e2ec24cb1cb82e592a97336", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "449e7d0a57443dd7d0fdbf522a3815addf02277e4e2ec24cb1cb82e592a97336", kill_on_drop: false }` [INFO] [stdout] 449e7d0a57443dd7d0fdbf522a3815addf02277e4e2ec24cb1cb82e592a97336 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e5086abb05afcbe8ffa392acad369464f12394efe616be90b1250421235f6de9 [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" "e5086abb05afcbe8ffa392acad369464f12394efe616be90b1250421235f6de9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.8 [INFO] [stderr] Compiling syn v1.0.14 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling escargot v0.5.0 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.104 [INFO] [stderr] Compiling serde_json v1.0.47 [INFO] [stderr] Compiling palaver v0.3.0-alpha.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 51.72s [INFO] running `Command { std: "docker" "inspect" "e5086abb05afcbe8ffa392acad369464f12394efe616be90b1250421235f6de9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5086abb05afcbe8ffa392acad369464f12394efe616be90b1250421235f6de9", kill_on_drop: false }` [INFO] [stdout] e5086abb05afcbe8ffa392acad369464f12394efe616be90b1250421235f6de9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 63140d90740054af226ef207f267378ad921f8b25513e334d9e789b63a2242c2 [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" "63140d90740054af226ef207f267378ad921f8b25513e334d9e789b63a2242c2", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/palaver-1fadd45d4a5a8ffe [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test thread::tests::count ... ignored [INFO] [stdout] test env::tests::same ... ok [INFO] [stderr] Running /opt/rustwide/target/debug/deps/env-77cac9bb5cbccb27 [INFO] [stdout] test process::tests::count ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test same_as_rust ... ok [INFO] [stderr] Running /opt/rustwide/target/debug/deps/fd_iter-049e9a44dadbb4e2 [INFO] [stdout] test echo ... ok [INFO] [stderr] Running /opt/rustwide/target/debug/deps/fork-ebc57a94eb353df9 [INFO] [stdout] [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', tests/fork.rs:170:38 [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stderr] stack backtrace: [INFO] [stdout] [INFO] [stdout] 0 [INFO] [stdout] 1 [INFO] [stdout] 2 [INFO] [stdout] multithreaded [INFO] [stderr] 0: 0x5568f76db020 - std::backtrace_rs::backtrace::libunwind::trace::h95fc93571932622e [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x5568f76db020 - std::backtrace_rs::backtrace::trace_unsynchronized::h4d0b90afc33151fd [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x5568f76db020 - std::sys_common::backtrace::_print_fmt::h93d302d001a3bf01 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x5568f76db020 - ::fmt::h7881e3a580134f9a [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x5568f76fa66c - core::fmt::write::h1857a60b204f1b6a [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x5568f76d7bb2 - std::io::Write::write_fmt::h24485de26f355188 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/io/mod.rs:1519:15 [INFO] [stderr] 6: 0x5568f76dd3b5 - std::sys_common::backtrace::_print::h3e3f9fed81bc11e9 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x5568f76dd3b5 - std::sys_common::backtrace::print::hd22ac23fed5071c8 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x5568f76dd3b5 - std::panicking::default_hook::{{closure}}::h1647bdcf68060e17 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x5568f76dcf0a - std::panicking::default_hook::hb08853b392b9404b [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x5568f76ddb51 - std::panicking::rust_panic_with_hook::h3624ee29da369ede [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x5568f76dd697 - std::panicking::begin_panic_handler::{{closure}}::hefcfcedcde6bb6d9 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:497:13 [INFO] [stderr] 12: 0x5568f76db4dc - std::sys_common::backtrace::__rust_end_short_backtrace::heb130cec93caa706 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x5568f76dd5f9 - rust_begin_unwind [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:493:5 [INFO] [stderr] 14: 0x5568f76f9a11 - core::panicking::panic_fmt::hb15d6f55e8472f62 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x5568f76f9833 - core::option::expect_none_failed::he492a18657d97593 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/option.rs:1268:5 [INFO] [stderr] 16: 0x5568f766b250 - core::result::Result::unwrap::heca15f568b30ce00 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/result.rs:973:23 [INFO] [stderr] 17: 0x5568f762afec - fork::fork::assert_dead::ha832b4b49513b2fa [INFO] [stderr] at /opt/rustwide/workdir/tests/fork.rs:170:3 [INFO] [stderr] 18: 0x5568f7629596 - fork::fork::multithreaded::hc52e1db151044481 [INFO] [stderr] at /opt/rustwide/workdir/tests/fork.rs:101:3 [INFO] [stderr] 19: 0x5568f762a89c - fork::fork::main::h74c331a33ddb897c [INFO] [stderr] at /opt/rustwide/workdir/tests/fork.rs:160:3 [INFO] [stderr] 20: 0x5568f7632826 - fork::main::ha2e45f239bc6fcbc [INFO] [stderr] at /opt/rustwide/workdir/tests/fork.rs:312:2 [INFO] [stderr] 21: 0x5568f763ab7b - core::ops::function::FnOnce::call_once::h334d04957b26d60b [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 22: 0x5568f763412e - std::sys_common::backtrace::__rust_begin_short_backtrace::h461ca588cd5b0942 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 23: 0x5568f7637891 - std::rt::lang_start::{{closure}}::h4b2c2d4eaee24dee [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/rt.rs:66:18 [INFO] [stderr] 24: 0x5568f76ddf77 - core::ops::function::impls:: for &F>::call_once::h194d6aa01fb6b594 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 25: 0x5568f76ddf77 - std::panicking::try::do_call::h4ef477456776cccb [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:379:40 [INFO] [stderr] 26: 0x5568f76ddf77 - std::panicking::try::h7f2121b6bb3bbca4 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:343:19 [INFO] [stderr] 27: 0x5568f76ddf77 - std::panic::catch_unwind::he974d0ca04309948 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panic.rs:396:14 [INFO] [stderr] 28: 0x5568f76ddf77 - std::rt::lang_start_internal::h36e9e78490120b9f [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/rt.rs:51:25 [INFO] [stderr] 29: 0x5568f7637867 - std::rt::lang_start::h6fdbb2ef4b105690 [INFO] [stderr] at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/rt.rs:65:5 [INFO] [stderr] 30: 0x5568f763285a - main [INFO] [stderr] 31: 0x7f8e172200b3 - __libc_start_main [INFO] [stderr] 32: 0x5568f76278fe - _start [INFO] [stderr] 33: 0x0 - [INFO] [stderr] error: test failed, to rerun pass '--test fork' [INFO] running `Command { std: "docker" "inspect" "63140d90740054af226ef207f267378ad921f8b25513e334d9e789b63a2242c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "63140d90740054af226ef207f267378ad921f8b25513e334d9e789b63a2242c2", kill_on_drop: false }` [INFO] [stdout] 63140d90740054af226ef207f267378ad921f8b25513e334d9e789b63a2242c2