[INFO] fetching crate palaver 0.3.0-alpha.3... [INFO] testing palaver-0.3.0-alpha.3 against 1.49.0 for beta-1.50-1 [INFO] extracting crate palaver 0.3.0-alpha.3 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate palaver 0.3.0-alpha.3 on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-14/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 417630620f4bafce9c07380c5a5f8db855354d7f8204d5bfd6d2fce279de474d [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" "417630620f4bafce9c07380c5a5f8db855354d7f8204d5bfd6d2fce279de474d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "417630620f4bafce9c07380c5a5f8db855354d7f8204d5bfd6d2fce279de474d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "417630620f4bafce9c07380c5a5f8db855354d7f8204d5bfd6d2fce279de474d", kill_on_drop: false }` [INFO] [stdout] 417630620f4bafce9c07380c5a5f8db855354d7f8204d5bfd6d2fce279de474d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 176bde994efc534de539288ab58e7e3066e5358a13e1b7bde442bc0566b4a771 [INFO] running `Command { std: "docker" "start" "-a" "176bde994efc534de539288ab58e7e3066e5358a13e1b7bde442bc0566b4a771", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling heapless v0.5.3 [INFO] [stderr] Compiling adler32 v1.0.4 [INFO] [stderr] Compiling rle-decode-fast v1.0.1 [INFO] [stderr] Compiling nix v0.16.1 [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 crc32fast v1.2.0 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling hash32 v0.1.1 [INFO] [stderr] Compiling libflate v0.1.27 [INFO] [stderr] Compiling as-slice v0.1.2 [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 29.98s [INFO] running `Command { std: "docker" "inspect" "176bde994efc534de539288ab58e7e3066e5358a13e1b7bde442bc0566b4a771", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "176bde994efc534de539288ab58e7e3066e5358a13e1b7bde442bc0566b4a771", kill_on_drop: false }` [INFO] [stdout] 176bde994efc534de539288ab58e7e3066e5358a13e1b7bde442bc0566b4a771 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0a0224fa630dfbba1d0ce21eebfa760edd84277d4d6e8efa577a70f94ca8b9c3 [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" "0a0224fa630dfbba1d0ce21eebfa760edd84277d4d6e8efa577a70f94ca8b9c3", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.8 [INFO] [stderr] Compiling syn v1.0.14 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling escargot v0.5.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling quote v1.0.2 [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 47.37s [INFO] running `Command { std: "docker" "inspect" "0a0224fa630dfbba1d0ce21eebfa760edd84277d4d6e8efa577a70f94ca8b9c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a0224fa630dfbba1d0ce21eebfa760edd84277d4d6e8efa577a70f94ca8b9c3", kill_on_drop: false }` [INFO] [stdout] 0a0224fa630dfbba1d0ce21eebfa760edd84277d4d6e8efa577a70f94ca8b9c3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8d0b8cf725b014d3db2d1d926ea8ae6a497adf4d7ee99556bc8bc77e0d8ee66c [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" "8d0b8cf725b014d3db2d1d926ea8ae6a497adf4d7ee99556bc8bc77e0d8ee66c", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/palaver-ffe09cbaf5afaf6b [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test thread::tests::count ... ignored [INFO] [stdout] test env::tests::same ... ok [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] [stderr] Running /opt/rustwide/target/debug/deps/env-fdcf0c768752658b [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test same_as_rust ... ok [INFO] [stdout] test echo ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/fd_iter-04dcdf909a1b1611 [INFO] [stdout] 0 [INFO] [stderr] Running /opt/rustwide/target/debug/deps/fork-8de68aee623a1531 [INFO] [stdout] 1 [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] 2 [INFO] [stderr] stack backtrace: [INFO] [stdout] multithreaded [INFO] [stderr] 0: 0x557cf81cfb50 - std::backtrace_rs::backtrace::libunwind::trace::h04d12fdcddff82aa [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5 [INFO] [stderr] 1: 0x557cf81cfb50 - std::backtrace_rs::backtrace::trace_unsynchronized::h1459b974b6fbe5e1 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x557cf81cfb50 - std::sys_common::backtrace::_print_fmt::h9b8396a669123d95 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x557cf81cfb50 - ::fmt::he009dcaaa75eed60 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x557cf81ee7cc - core::fmt::write::h77b4746b0dea1dd3 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x557cf81cca52 - std::io::Write::write_fmt::heb7e50902e98831c [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/io/mod.rs:1518:15 [INFO] [stderr] 6: 0x557cf81d1d75 - std::sys_common::backtrace::_print::h2d880c9e69a21be9 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x557cf81d1d75 - std::sys_common::backtrace::print::h5f02b1bb49f36879 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x557cf81d1d75 - std::panicking::default_hook::{{closure}}::h658e288a7a809b29 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x557cf81d1a18 - std::panicking::default_hook::hb52d73f0da9a4bb8 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x557cf81d2511 - std::panicking::rust_panic_with_hook::hfe7e1c684e3e6462 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:593:17 [INFO] [stderr] 11: 0x557cf81d2057 - std::panicking::begin_panic_handler::{{closure}}::h42939e004b32765c [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:499:13 [INFO] [stderr] 12: 0x557cf81d000c - std::sys_common::backtrace::__rust_end_short_backtrace::h9d2070f7bf9fd56c [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x557cf81d1fb9 - rust_begin_unwind [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:495:5 [INFO] [stderr] 14: 0x557cf81edb71 - core::panicking::panic_fmt::ha0bb065d9a260792 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x557cf81ed993 - core::option::expect_none_failed::h7e1dd0a94971eb61 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/option.rs:1268:5 [INFO] [stderr] 16: 0x557cf815f260 - core::result::Result::unwrap::h9a2ec02533c17b7a [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/result.rs:973:23 [INFO] [stderr] 17: 0x557cf811dfec - fork::fork::assert_dead::hc4c1ef042ad84c36 [INFO] [stderr] at /opt/rustwide/workdir/tests/fork.rs:170:3 [INFO] [stderr] 18: 0x557cf811c596 - fork::fork::multithreaded::h677eb178a2b76290 [INFO] [stderr] at /opt/rustwide/workdir/tests/fork.rs:101:3 [INFO] [stderr] 19: 0x557cf811d89c - fork::fork::main::h60568678cdf86caa [INFO] [stderr] at /opt/rustwide/workdir/tests/fork.rs:160:3 [INFO] [stderr] 20: 0x557cf8124a36 - fork::main::h6c9866172ba6b041 [INFO] [stderr] at /opt/rustwide/workdir/tests/fork.rs:312:2 [INFO] [stderr] 21: 0x557cf812a29b - core::ops::function::FnOnce::call_once::h90cef37f5d1ec4a4 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 22: 0x557cf812638e - std::sys_common::backtrace::__rust_begin_short_backtrace::hb1477dd515d56844 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 23: 0x557cf8126471 - std::rt::lang_start::{{closure}}::h24267895d72750e3 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/rt.rs:66:18 [INFO] [stderr] 24: 0x557cf81d2937 - core::ops::function::impls:: for &F>::call_once::h57e2a071d427b24c [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 25: 0x557cf81d2937 - std::panicking::try::do_call::h81cbbe0c3b30a28e [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:381:40 [INFO] [stderr] 26: 0x557cf81d2937 - std::panicking::try::hbeeb95b4e1f0a876 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:345:19 [INFO] [stderr] 27: 0x557cf81d2937 - std::panic::catch_unwind::h59c48ccb40a0bf20 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panic.rs:396:14 [INFO] [stderr] 28: 0x557cf81d2937 - std::rt::lang_start_internal::ha53ab63f88fee728 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/rt.rs:51:25 [INFO] [stderr] 29: 0x557cf8126447 - std::rt::lang_start::hb209ebf74ffbb287 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/rt.rs:65:5 [INFO] [stderr] 30: 0x557cf8124a6a - main [INFO] [stderr] 31: 0x7fafc91b50b3 - __libc_start_main [INFO] [stderr] 32: 0x557cf811a8fe - _start [INFO] [stderr] 33: 0x0 - [INFO] [stderr] error: test failed, to rerun pass '--test fork' [INFO] running `Command { std: "docker" "inspect" "8d0b8cf725b014d3db2d1d926ea8ae6a497adf4d7ee99556bc8bc77e0d8ee66c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d0b8cf725b014d3db2d1d926ea8ae6a497adf4d7ee99556bc8bc77e0d8ee66c", kill_on_drop: false }` [INFO] [stdout] 8d0b8cf725b014d3db2d1d926ea8ae6a497adf4d7ee99556bc8bc77e0d8ee66c