[INFO] cloning repository https://github.com/BartMassey/midi-period
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BartMassey/midi-period" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBartMassey%2Fmidi-period", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBartMassey%2Fmidi-period'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa91c67587e68dc87cae1d38e33f892f635a4568
[INFO] checking BartMassey/midi-period against master#f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b for pr-148329
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBartMassey%2Fmidi-period" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BartMassey/midi-period
[INFO] finished tweaking git repo https://github.com/BartMassey/midi-period
[INFO] tweaked toml for git repo https://github.com/BartMassey/midi-period written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BartMassey/midi-period on toolchain f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BartMassey/midi-period 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" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc969a841f1524f602b6bea743e769d6acb40f02efdf62bdf63197948d54e23c
[INFO] running `Command { std: "docker" "start" "-a" "cc969a841f1524f602b6bea743e769d6acb40f02efdf62bdf63197948d54e23c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc969a841f1524f602b6bea743e769d6acb40f02efdf62bdf63197948d54e23c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc969a841f1524f602b6bea743e769d6acb40f02efdf62bdf63197948d54e23c", kill_on_drop: false }`
[INFO] [stdout] cc969a841f1524f602b6bea743e769d6acb40f02efdf62bdf63197948d54e23c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14b06cb56d4a7b50965ed072afdea41e150cd900356aaaf6c8cd10f3e49e58da
[INFO] running `Command { std: "docker" "start" "-a" "14b06cb56d4a7b50965ed072afdea41e150cd900356aaaf6c8cd10f3e49e58da", kill_on_drop: false }`
[INFO] [stderr]    Compiling midi-period v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `midi-period v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/midi-period-f5b0bb649b4dfca5/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (53) panicked at build.rs:16:58:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5c221e193892 - std::backtrace_rs::backtrace::libunwind::trace::hf8c8bace9f876b2f
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5c221e193892 - std::backtrace_rs::backtrace::trace_unsynchronized::h8e01642c3e7b2e43
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5c221e193892 - std::sys::backtrace::_print_fmt::h77160e868f55b489
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5c221e193892 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h86816ab5bed03abd
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5c221e1a293f - core::fmt::rt::Argument::fmt::h7537687515eb9d20
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5c221e1a293f - core::fmt::write::h514dae0dfa4deb62
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x5c221e1720d3 - std::io::default_write_fmt::he54a134961fc9925
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5c221e1720d3 - std::io::Write::write_fmt::h251346ee5c06db9e
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5c221e177422 - std::sys::backtrace::BacktraceLock::print::h8f0fd6e76f7a78f6
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5c221e178c4c - std::panicking::default_hook::{{closure}}::hd4616c16f9170728
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5c221e178aa6 - std::panicking::default_hook::hf57a825abaeaf8f2
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5c221e179225 - std::panicking::panic_with_hook::h2106eda2577ac1d1
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5c221e1790ba - std::panicking::panic_handler::{{closure}}::h31145d8ce6be191b
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5c221e177559 - std::sys::backtrace::__rust_end_short_backtrace::hfe6436ea26285ee7
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5c221e166cad - __rustc[b7055cc68e17015c]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5c221e1a5c90 - core::panicking::panic_fmt::h7c9830ee7d78611e
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5c221e1a5516 - core::result::unwrap_failed::h109630239261f134
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/result.rs:1862:5
[INFO] [stderr]     17:     0x5c221e1633ea - build_script_build::main::hec0873db89e44af2
[INFO] [stderr]     18:     0x5c221e164fd3 - core::ops::function::FnOnce::call_once::h7d369e56e5a1a405
[INFO] [stderr]     19:     0x5c221e164cd6 - std::sys::backtrace::__rust_begin_short_backtrace::h35ea59ebe0bb6f8f
[INFO] [stderr]     20:     0x5c221e164bd9 - std::rt::lang_start::{{closure}}::h7735946fd0403e53
[INFO] [stderr]     21:     0x5c221e173480 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd6f37eb5295dd5be
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x5c221e173480 - std::panicking::catch_unwind::do_call::h3815aed4c6b7b95d
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:590:40
[INFO] [stderr]     23:     0x5c221e173480 - std::panicking::catch_unwind::h85465135f484172f
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:553:19
[INFO] [stderr]     24:     0x5c221e173480 - std::panic::catch_unwind::hf2aa9366fc13ac15
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x5c221e173480 - std::rt::lang_start_internal::{{closure}}::hbfe27d8fd739a4f8
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x5c221e173480 - std::panicking::catch_unwind::do_call::hccfb13b3b7b74f6f
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:590:40
[INFO] [stderr]     27:     0x5c221e173480 - std::panicking::catch_unwind::hae657d0473b4e58d
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:553:19
[INFO] [stderr]     28:     0x5c221e173480 - std::panic::catch_unwind::h7f34feed7ea39f44
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x5c221e173480 - std::rt::lang_start_internal::h73d296ed2be53c98
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x5c221e164bc1 - std::rt::lang_start::h260466ae216945b3
[INFO] [stderr]     31:     0x5c221e1669c5 - main
[INFO] [stderr]     32:     0x7d56c67181ca - <unknown>
[INFO] [stderr]     33:     0x7d56c671828b - __libc_start_main
[INFO] [stderr]     34:     0x5c221e1632b5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "14b06cb56d4a7b50965ed072afdea41e150cd900356aaaf6c8cd10f3e49e58da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14b06cb56d4a7b50965ed072afdea41e150cd900356aaaf6c8cd10f3e49e58da", kill_on_drop: false }`
[INFO] [stdout] 14b06cb56d4a7b50965ed072afdea41e150cd900356aaaf6c8cd10f3e49e58da
