[INFO] cloning repository https://github.com/brynblack/racklight
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brynblack/racklight" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrynblack%2Fracklight", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrynblack%2Fracklight'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 843e38993bd55fcf18633d7b551df3e87da6678f
[INFO] testing brynblack/racklight against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrynblack%2Fracklight" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brynblack/racklight on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brynblack/racklight
[INFO] finished tweaking git repo https://github.com/brynblack/racklight
[INFO] tweaked toml for git repo https://github.com/brynblack/racklight written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/brynblack/racklight 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ea01e8d7325e5ba06fe0a363edfb076a07e61bf020526b46db4f5697ad9e931
[INFO] running `Command { std: "docker" "start" "-a" "8ea01e8d7325e5ba06fe0a363edfb076a07e61bf020526b46db4f5697ad9e931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ea01e8d7325e5ba06fe0a363edfb076a07e61bf020526b46db4f5697ad9e931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ea01e8d7325e5ba06fe0a363edfb076a07e61bf020526b46db4f5697ad9e931", kill_on_drop: false }`
[INFO] [stdout] 8ea01e8d7325e5ba06fe0a363edfb076a07e61bf020526b46db4f5697ad9e931
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 979b923f2fd9b381b959273bbf0fcc0f85e0e97b6daa1cce8a787db5f18adf97
[INFO] running `Command { std: "docker" "start" "-a" "979b923f2fd9b381b959273bbf0fcc0f85e0e97b6daa1cce8a787db5f18adf97", kill_on_drop: false }`
[INFO] [stderr]    Compiling racklight v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "979b923f2fd9b381b959273bbf0fcc0f85e0e97b6daa1cce8a787db5f18adf97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979b923f2fd9b381b959273bbf0fcc0f85e0e97b6daa1cce8a787db5f18adf97", kill_on_drop: false }`
[INFO] [stdout] 979b923f2fd9b381b959273bbf0fcc0f85e0e97b6daa1cce8a787db5f18adf97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05e595dba94658335a3abe37afd456d32470fdd622a3105de39d019650f95caa
[INFO] running `Command { std: "docker" "start" "-a" "05e595dba94658335a3abe37afd456d32470fdd622a3105de39d019650f95caa", kill_on_drop: false }`
[INFO] [stderr]    Compiling racklight v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "05e595dba94658335a3abe37afd456d32470fdd622a3105de39d019650f95caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05e595dba94658335a3abe37afd456d32470fdd622a3105de39d019650f95caa", kill_on_drop: false }`
[INFO] [stdout] 05e595dba94658335a3abe37afd456d32470fdd622a3105de39d019650f95caa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8dfea9e2a499d43ca3f1bc2914b0a9e0c18b050b14811f304696b0d6c79d2f5d
[INFO] running `Command { std: "docker" "start" "-a" "8dfea9e2a499d43ca3f1bc2914b0a9e0c18b050b14811f304696b0d6c79d2f5d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/racklight-62b98d354c752a8c)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/racklight-a9e14605a6e127f1)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests racklight
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/backlight.rs - backlight::Backlight::new (line 49) ... ok
[INFO] [stdout] test src/backlight.rs - backlight::Backlight::set_brightness (line 102) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/backlight.rs - backlight::Backlight::set_brightness (line 102) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/backlight.rs:73:14:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56471e9480a5 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x56471e9480a5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x56471e9480a5 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x56471e9480a5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x56471e96592b - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x56471e96592b - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x56471e9461af - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x56471e947e7e - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x56471e947e7e - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x56471e9491e9 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x56471e948f2d - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x56471e949683 - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x56471e949564 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x56471e948569 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x56471e949297 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x56471e926b63 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x56471e926f76 - core::result::unwrap_failed::h382691b96ca8c13a
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x56471e92d8b5 - core::result::Result<T,E>::unwrap::hdfc5fad8b7967894
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1077:23
[INFO] [stdout]   18:     0x56471e92d8b5 - racklight::backlight::Backlight::get::hd9b721bd65bd0171
[INFO] [stdout]                                at /opt/rustwide/workdir/src/backlight.rs:72:9
[INFO] [stdout]   19:     0x56471e92dd8f - racklight::backlight::Backlight::update::hbefa7d8dd45e2a18
[INFO] [stdout]                                at /opt/rustwide/workdir/src/backlight.rs:92:27
[INFO] [stdout]   20:     0x56471e92dde4 - racklight::backlight::Backlight::set_brightness::ha6ac0330e17fe870
[INFO] [stdout]                                at /opt/rustwide/workdir/src/backlight.rs:110:9
[INFO] [stdout]   21:     0x56471e92775e - rust_out::main::_doctest_main_src_backlight_rs_102_0::hb424604cf9d67d6e
[INFO] [stdout]   22:     0x56471e927716 - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   23:     0x56471e9273c3 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   24:     0x56471e9272e6 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   25:     0x56471e927339 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   26:     0x56471e94377d - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h239f0051f1e18680
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   27:     0x56471e94377d - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   28:     0x56471e94377d - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   29:     0x56471e94377d - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   30:     0x56471e94377d - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:48
[INFO] [stdout]   31:     0x56471e94377d - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   32:     0x56471e94377d - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   33:     0x56471e94377d - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   34:     0x56471e94377d - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:20
[INFO] [stdout]   35:     0x56471e927317 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   36:     0x56471e9277b5 - main
[INFO] [stdout]   37:     0x7f33565ebd90 - <unknown>
[INFO] [stdout]   38:     0x7f33565ebe40 - __libc_start_main
[INFO] [stdout]   39:     0x56471e9271d5 - _start
[INFO] [stdout]   40:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/backlight.rs - backlight::Backlight::set_brightness (line 102)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "8dfea9e2a499d43ca3f1bc2914b0a9e0c18b050b14811f304696b0d6c79d2f5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dfea9e2a499d43ca3f1bc2914b0a9e0c18b050b14811f304696b0d6c79d2f5d", kill_on_drop: false }`
[INFO] [stdout] 8dfea9e2a499d43ca3f1bc2914b0a9e0c18b050b14811f304696b0d6c79d2f5d
