[INFO] fetching crate serial_enumerate 0.1.0... [INFO] testing serial_enumerate-0.1.0 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296 [INFO] extracting crate serial_enumerate 0.1.0 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate serial_enumerate 0.1.0 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate serial_enumerate 0.1.0 [INFO] finished tweaking crates.io crate serial_enumerate 0.1.0 [INFO] tweaked toml for crates.io crate serial_enumerate 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", 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] a95eb703c7a5deed0fe774d73ae40d2f0203b60be5cdacadc71565beb04e6d4f [INFO] running `Command { std: "docker" "start" "-a" "a95eb703c7a5deed0fe774d73ae40d2f0203b60be5cdacadc71565beb04e6d4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a95eb703c7a5deed0fe774d73ae40d2f0203b60be5cdacadc71565beb04e6d4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a95eb703c7a5deed0fe774d73ae40d2f0203b60be5cdacadc71565beb04e6d4f", kill_on_drop: false }` [INFO] [stdout] a95eb703c7a5deed0fe774d73ae40d2f0203b60be5cdacadc71565beb04e6d4f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 90a85bc7455c3f034586d46347b4e85aa19980c276b0b298f60f82fed7be1fde [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" "90a85bc7455c3f034586d46347b4e85aa19980c276b0b298f60f82fed7be1fde", kill_on_drop: false }` [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling cc v1.0.65 [INFO] [stderr] Compiling winapi v0.2.8 [INFO] [stderr] Compiling backtrace v0.2.3 [INFO] [stderr] Compiling rustc-demangle v0.1.18 [INFO] [stderr] Compiling dbghelp-sys v0.2.0 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling backtrace-sys v0.1.37 [INFO] [stderr] Compiling error-chain v0.5.0 [INFO] [stderr] Compiling serial_enumerate v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.10s [INFO] running `Command { std: "docker" "inspect" "90a85bc7455c3f034586d46347b4e85aa19980c276b0b298f60f82fed7be1fde", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90a85bc7455c3f034586d46347b4e85aa19980c276b0b298f60f82fed7be1fde", kill_on_drop: false }` [INFO] [stdout] 90a85bc7455c3f034586d46347b4e85aa19980c276b0b298f60f82fed7be1fde [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a574dbfe532ee838ae896767bb6c2b93449652bafc66eef0bcadbc7403265b43 [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" "a574dbfe532ee838ae896767bb6c2b93449652bafc66eef0bcadbc7403265b43", kill_on_drop: false }` [INFO] [stderr] Compiling serial_enumerate v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `Command { std: "docker" "inspect" "a574dbfe532ee838ae896767bb6c2b93449652bafc66eef0bcadbc7403265b43", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a574dbfe532ee838ae896767bb6c2b93449652bafc66eef0bcadbc7403265b43", kill_on_drop: false }` [INFO] [stdout] a574dbfe532ee838ae896767bb6c2b93449652bafc66eef0bcadbc7403265b43 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 70650188937c671426af878d8da3f844f5efa77bcdbe116c4a42a3dd27d42d6b [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" "70650188937c671426af878d8da3f844f5efa77bcdbe116c4a42a3dd27d42d6b", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/serial_enumerate-0b7ea8f3a47a44db [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests serial_enumerate [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 4) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 4) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error(Msg("/dev/serial not found"), (Some(Os { code: 2, kind: NotFound, message: "No such file or directory" }), Some(stack backtrace: [INFO] [stdout] 0: 0x555e1505de43 - backtrace::backtrace::libunwind::trace::h269c478701d1776c [INFO] [stdout] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/backtrace/libunwind.rs:54 [INFO] [stdout] - backtrace::backtrace::trace::h0ae8f84c665c87bb [INFO] [stdout] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/backtrace/mod.rs:70 [INFO] [stdout] 1: 0x555e1505ab15 - backtrace::capture::Backtrace::new::hc777ef5aa5edecc4 [INFO] [stdout] at /opt/rustwide/target/debug/build/backtrace-82c46a994dd00580/out/capture.rs:79 [INFO] [stdout] 2: 0x555e15057ef6 - error_chain::make_backtrace::h828929a832fa6d28 [INFO] [stdout] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.5.0/src/lib.rs:684 [INFO] [stdout] 3: 0x555e15051899 - as serial_enumerate::errors::ChainErr>::chain_err::{{closure}}::{{closure}}::h0cccbe26b980c492 [INFO] [stdout] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.5.0/src/lib.rs:504 [INFO] [stdout] 4: 0x555e15055e5f - core::option::Option::unwrap_or_else::h8417c0610638e814 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/core/src/option.rs:427 [INFO] [stdout] 5: 0x555e15051c88 - as serial_enumerate::errors::ChainErr>::chain_err::{{closure}}::h398fb217848f0f1b [INFO] [stdout] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.5.0/src/lib.rs:503 [INFO] [stdout] 6: 0x555e15056fc1 - core::result::Result::map_err::haf3dc6801f9c2d87 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/core/src/result.rs:595 [INFO] [stdout] 7: 0x555e15057380 - as serial_enumerate::errors::ChainErr>::chain_err::h898b9366fd376b90 [INFO] [stdout] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.5.0/src/lib.rs:500 [INFO] [stdout] 8: 0x555e15056235 - serial_enumerate::enumerate_serial_ports::h5632092425c481d1 [INFO] [stdout] at src/lib.rs:46 [INFO] [stdout] 9: 0x555e15051329 - rust_out::main::h405f65324f7b53be [INFO] [stdout] 10: 0x555e15050682 - core::ops::function::FnOnce::call_once::ha451af22024e1864 [INFO] [stdout] 11: 0x555e15050308 - std::sys_common::backtrace::__rust_begin_short_backtrace::hefd8e56bf97a4afd [INFO] [stdout] 12: 0x555e15050398 - std::rt::lang_start::{{closure}}::hee13be5f96bd7848 [INFO] [stdout] 13: 0x555e150a0f96 - core::ops::function::impls:: for &F>::call_once::h194d6aa01fb6b594 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/core/src/ops/function.rs:259 [INFO] [stdout] - std::panicking::try::do_call::h4ef477456776cccb [INFO] [stdout] at library/std/src/panicking.rs:379 [INFO] [stdout] - std::panicking::try::h7f2121b6bb3bbca4 [INFO] [stdout] at library/std/src/panicking.rs:343 [INFO] [stdout] - std::panic::catch_unwind::he974d0ca04309948 [INFO] [stdout] at library/std/src/panic.rs:396 [INFO] [stdout] - std::rt::lang_start_internal::h36e9e78490120b9f [INFO] [stdout] at library/std/src/rt.rs:51 [INFO] [stdout] 14: 0x555e15050377 - std::rt::lang_start::h290408a3f91c6d5a [INFO] [stdout] 15: 0x555e1505159a - main [INFO] [stdout] 16: 0x7f88824de0b2 - __libc_start_main [INFO] [stdout] 17: 0x555e1505018d - _start [INFO] [stdout] 18: 0x0 - )))', src/lib.rs:4:58 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x555e1509def0 - std::backtrace_rs::backtrace::libunwind::trace::h95fc93571932622e [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x555e1509def0 - std::backtrace_rs::backtrace::trace_unsynchronized::h4d0b90afc33151fd [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x555e1509def0 - std::sys_common::backtrace::_print_fmt::h93d302d001a3bf01 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x555e1509def0 - ::fmt::h7881e3a580134f9a [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x555e150b93ac - core::fmt::write::h1857a60b204f1b6a [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/core/src/fmt/mod.rs:1078:17 [INFO] [stdout] 5: 0x555e1509bb72 - std::io::Write::write_fmt::h24485de26f355188 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/io/mod.rs:1519:15 [INFO] [stdout] 6: 0x555e150a03d5 - std::sys_common::backtrace::_print::h3e3f9fed81bc11e9 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x555e150a03d5 - std::sys_common::backtrace::print::hd22ac23fed5071c8 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x555e150a03d5 - std::panicking::default_hook::{{closure}}::h1647bdcf68060e17 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x555e1509ff2a - std::panicking::default_hook::hb08853b392b9404b [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x555e150a0b71 - std::panicking::rust_panic_with_hook::h3624ee29da369ede [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/panicking.rs:591:17 [INFO] [stdout] 11: 0x555e150a06b7 - std::panicking::begin_panic_handler::{{closure}}::hefcfcedcde6bb6d9 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/panicking.rs:497:13 [INFO] [stdout] 12: 0x555e1509e3ac - std::sys_common::backtrace::__rust_end_short_backtrace::heb130cec93caa706 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x555e150a0619 - rust_begin_unwind [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/panicking.rs:493:5 [INFO] [stdout] 14: 0x555e150b8751 - core::panicking::panic_fmt::hb15d6f55e8472f62 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x555e150b8573 - core::option::expect_none_failed::he492a18657d97593 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/core/src/option.rs:1268:5 [INFO] [stdout] 16: 0x555e15050a99 - core::result::Result::unwrap::hc659d308bb662a4e [INFO] [stdout] 17: 0x555e15051343 - rust_out::main::h405f65324f7b53be [INFO] [stdout] 18: 0x555e15050683 - core::ops::function::FnOnce::call_once::ha451af22024e1864 [INFO] [stdout] 19: 0x555e15050309 - std::sys_common::backtrace::__rust_begin_short_backtrace::hefd8e56bf97a4afd [INFO] [stdout] 20: 0x555e15050399 - std::rt::lang_start::{{closure}}::hee13be5f96bd7848 [INFO] [stdout] 21: 0x555e150a0f97 - core::ops::function::impls:: for &F>::call_once::h194d6aa01fb6b594 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/core/src/ops/function.rs:259:13 [INFO] [stdout] 22: 0x555e150a0f97 - std::panicking::try::do_call::h4ef477456776cccb [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/panicking.rs:379:40 [INFO] [stdout] 23: 0x555e150a0f97 - std::panicking::try::h7f2121b6bb3bbca4 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/panicking.rs:343:19 [INFO] [stdout] 24: 0x555e150a0f97 - std::panic::catch_unwind::he974d0ca04309948 [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/panic.rs:396:14 [INFO] [stdout] 25: 0x555e150a0f97 - std::rt::lang_start_internal::h36e9e78490120b9f [INFO] [stdout] at /rustc/5d5ff84130da0d74c6ece368dbe821d8f83fa526/library/std/src/rt.rs:51:25 [INFO] [stdout] 26: 0x555e15050378 - std::rt::lang_start::h290408a3f91c6d5a [INFO] [stdout] 27: 0x555e1505159b - main [INFO] [stdout] 28: 0x7f88824de0b3 - __libc_start_main [INFO] [stdout] 29: 0x555e1505018e - _start [INFO] [stdout] 30: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 4) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "70650188937c671426af878d8da3f844f5efa77bcdbe116c4a42a3dd27d42d6b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70650188937c671426af878d8da3f844f5efa77bcdbe116c4a42a3dd27d42d6b", kill_on_drop: false }` [INFO] [stdout] 70650188937c671426af878d8da3f844f5efa77bcdbe116c4a42a3dd27d42d6b