[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#8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd for pr-150557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBartMassey%2Fmidi-period" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-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-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BartMassey/midi-period on toolchain 8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "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" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94bbc42df9550840952a3d8bb9bbb5db943e96ed01f7de1aa16a3c151a83a44b
[INFO] running `Command { std: "docker" "start" "-a" "94bbc42df9550840952a3d8bb9bbb5db943e96ed01f7de1aa16a3c151a83a44b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94bbc42df9550840952a3d8bb9bbb5db943e96ed01f7de1aa16a3c151a83a44b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94bbc42df9550840952a3d8bb9bbb5db943e96ed01f7de1aa16a3c151a83a44b", kill_on_drop: false }`
[INFO] [stdout] 94bbc42df9550840952a3d8bb9bbb5db943e96ed01f7de1aa16a3c151a83a44b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c54197149dbebf2691d05610fd00261a6d62b416816285a54588e76b3c8200d8
[INFO] running `Command { std: "docker" "start" "-a" "c54197149dbebf2691d05610fd00261a6d62b416816285a54588e76b3c8200d8", 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:     0x60713ef60432 - std[537962ca55f41443]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x60713ef60432 - std[537962ca55f41443]::backtrace_rs::backtrace::trace_unsynchronized::<std[537962ca55f41443]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x60713ef60432 - std[537962ca55f41443]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x60713ef60432 - <<std[537962ca55f41443]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6c9c9c2c6e9466e2]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x60713ef717fa - <core[6c9c9c2c6e9466e2]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x60713ef717fa - core[6c9c9c2c6e9466e2]::fmt::write
[INFO] [stderr]      6:     0x60713ef64346 - std[537962ca55f41443]::io::default_write_fmt::<std[537962ca55f41443]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x60713ef64346 - <std[537962ca55f41443]::sys::stdio::unix::Stderr as std[537962ca55f41443]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x60713ef4b71f - <std[537962ca55f41443]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x60713ef4b71f - std[537962ca55f41443]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x60713ef5c8e1 - std[537962ca55f41443]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x60713ef5ca9b - std[537962ca55f41443]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x60713ef4b7d8 - std[537962ca55f41443]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x60713ef434d9 - std[537962ca55f41443]::sys::backtrace::__rust_end_short_backtrace::<std[537962ca55f41443]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x60713ef4bffd - __rustc[cc0363f037a135f8]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x60713ef71e2c - core[6c9c9c2c6e9466e2]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x60713ef71c02 - core[6c9c9c2c6e9466e2]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x60713ef336fa - build_script_build[fdf199918ed36ce5]::main
[INFO] [stderr]     18:     0x60713ef354b3 - <fn() as core[6c9c9c2c6e9466e2]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     19:     0x60713ef33296 - std[537962ca55f41443]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     20:     0x60713ef33619 - std[537962ca55f41443]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     21:     0x60713ef5bed6 - <&dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe as core[6c9c9c2c6e9466e2]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x60713ef5bed6 - std[537962ca55f41443]::panicking::catch_unwind::do_call::<&dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     23:     0x60713ef5bed6 - std[537962ca55f41443]::panicking::catch_unwind::<i32, &dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     24:     0x60713ef5bed6 - std[537962ca55f41443]::panic::catch_unwind::<&dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x60713ef5bed6 - std[537962ca55f41443]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x60713ef5bed6 - std[537962ca55f41443]::panicking::catch_unwind::do_call::<std[537962ca55f41443]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     27:     0x60713ef5bed6 - std[537962ca55f41443]::panicking::catch_unwind::<isize, std[537962ca55f41443]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     28:     0x60713ef5bed6 - std[537962ca55f41443]::panic::catch_unwind::<std[537962ca55f41443]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x60713ef5bed6 - std[537962ca55f41443]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x60713ef33071 - std[537962ca55f41443]::rt::lang_start::<()>
[INFO] [stderr]     31:     0x60713ef35ae5 - main
[INFO] [stderr]     32:     0x7b1e407e61ca - <unknown>
[INFO] [stderr]     33:     0x7b1e407e628b - __libc_start_main
[INFO] [stderr]     34:     0x60713ef32ae5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c54197149dbebf2691d05610fd00261a6d62b416816285a54588e76b3c8200d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c54197149dbebf2691d05610fd00261a6d62b416816285a54588e76b3c8200d8", kill_on_drop: false }`
[INFO] [stdout] c54197149dbebf2691d05610fd00261a6d62b416816285a54588e76b3c8200d8
