[INFO] cloning repository https://github.com/mattdurak/sample_rustfmt_bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattdurak/sample_rustfmt_bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdurak%2Fsample_rustfmt_bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdurak%2Fsample_rustfmt_bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0777a571d9b21eb1070d88b96e366a7a9fdda75f
[INFO] checking mattdurak/sample_rustfmt_bug/0777a571d9b21eb1070d88b96e366a7a9fdda75f against master#91775dbec9771aa0c1b9ebe268eb5bd271e79a7a for pr-139087-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdurak%2Fsample_rustfmt_bug" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mattdurak/sample_rustfmt_bug
[INFO] finished tweaking git repo https://github.com/mattdurak/sample_rustfmt_bug
[INFO] tweaked toml for git repo https://github.com/mattdurak/sample_rustfmt_bug written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mattdurak/sample_rustfmt_bug on toolchain 91775dbec9771aa0c1b9ebe268eb5bd271e79a7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mattdurak/sample_rustfmt_bug 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" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d48944bb1970aaf3140d14cc8a1035203172d7c62e4514bdfee2b4689a573d8f
[INFO] running `Command { std: "docker" "start" "-a" "d48944bb1970aaf3140d14cc8a1035203172d7c62e4514bdfee2b4689a573d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d48944bb1970aaf3140d14cc8a1035203172d7c62e4514bdfee2b4689a573d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d48944bb1970aaf3140d14cc8a1035203172d7c62e4514bdfee2b4689a573d8f", kill_on_drop: false }`
[INFO] [stdout] d48944bb1970aaf3140d14cc8a1035203172d7c62e4514bdfee2b4689a573d8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ff46132dba989218096b55d49a463f6ea168ed03e9b31832cdbc1044b642221
[INFO] running `Command { std: "docker" "start" "-a" "5ff46132dba989218096b55d49a463f6ea168ed03e9b31832cdbc1044b642221", kill_on_drop: false }`
[INFO] [stderr]    Compiling fmt_bug v0.1.0 (/opt/rustwide/workdir/my-crate)
[INFO] [stderr] error: failed to run custom build command for `fmt_bug v0.1.0 (/opt/rustwide/workdir/my-crate)`
[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/fmt_bug-8fc831e9d7513670/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   creating target file: sample
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (46) panicked at my-crate/build.rs:17:13:
[INFO] [stderr]   Failed to create target file /opt/rustwide/workdir/my-crate/src/generated/sample.rs: Read-only file system (os error 30)
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55f1cb37d69a - std[bae7bb90fd99e79c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x55f1cb37d69a - std[bae7bb90fd99e79c]::backtrace_rs::backtrace::trace_unsynchronized::<std[bae7bb90fd99e79c]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x55f1cb37d69a - std[bae7bb90fd99e79c]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x55f1cb37d69a - <<std[bae7bb90fd99e79c]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[976f6d1a67e2ba9a]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x55f1cb38eafa - <core[976f6d1a67e2ba9a]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x55f1cb38eafa - core[976f6d1a67e2ba9a]::fmt::write
[INFO] [stderr]      6:     0x55f1cb381982 - std[bae7bb90fd99e79c]::io::default_write_fmt::<std[bae7bb90fd99e79c]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x55f1cb381982 - <std[bae7bb90fd99e79c]::sys::stdio::unix::Stderr as std[bae7bb90fd99e79c]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x55f1cb362aef - <std[bae7bb90fd99e79c]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x55f1cb362aef - std[bae7bb90fd99e79c]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x55f1cb378dd1 - std[bae7bb90fd99e79c]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x55f1cb378f8b - std[bae7bb90fd99e79c]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x55f1cb362ba8 - std[bae7bb90fd99e79c]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x55f1cb35a759 - std[bae7bb90fd99e79c]::sys::backtrace::__rust_end_short_backtrace::<std[bae7bb90fd99e79c]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x55f1cb36340d - __rustc[60c32f7835a1e9de]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x55f1cb38f30c - core[976f6d1a67e2ba9a]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x55f1cb34a184 - build_script_build[5372fae1bb36435a]::main::{closure#1}
[INFO] [stderr]     17:     0x55f1cb348d19 - <core[976f6d1a67e2ba9a]::result::Result<std[bae7bb90fd99e79c]::fs::File, std[bae7bb90fd99e79c]::io::error::Error>>::unwrap_or_else::<build_script_build[5372fae1bb36435a]::main::{closure#1}>
[INFO] [stderr]     18:     0x55f1cb34a589 - build_script_build[5372fae1bb36435a]::main
[INFO] [stderr]     19:     0x55f1cb34bda3 - <fn() as core[976f6d1a67e2ba9a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     20:     0x55f1cb346a36 - std[bae7bb90fd99e79c]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     21:     0x55f1cb346ec9 - std[bae7bb90fd99e79c]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     22:     0x55f1cb378154 - <&dyn core[976f6d1a67e2ba9a]::ops::function::Fn<(), Output = i32> + core[976f6d1a67e2ba9a]::marker::Sync + core[976f6d1a67e2ba9a]::panic::unwind_safe::RefUnwindSafe as core[976f6d1a67e2ba9a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x55f1cb378154 - std[bae7bb90fd99e79c]::panicking::catch_unwind::do_call::<&dyn core[976f6d1a67e2ba9a]::ops::function::Fn<(), Output = i32> + core[976f6d1a67e2ba9a]::marker::Sync + core[976f6d1a67e2ba9a]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:581:40
[INFO] [stderr]     24:     0x55f1cb378154 - std[bae7bb90fd99e79c]::panicking::catch_unwind::<i32, &dyn core[976f6d1a67e2ba9a]::ops::function::Fn<(), Output = i32> + core[976f6d1a67e2ba9a]::marker::Sync + core[976f6d1a67e2ba9a]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:544:19
[INFO] [stderr]     25:     0x55f1cb378154 - std[bae7bb90fd99e79c]::panic::catch_unwind::<&dyn core[976f6d1a67e2ba9a]::ops::function::Fn<(), Output = i32> + core[976f6d1a67e2ba9a]::marker::Sync + core[976f6d1a67e2ba9a]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x55f1cb378154 - std[bae7bb90fd99e79c]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x55f1cb378154 - std[bae7bb90fd99e79c]::panicking::catch_unwind::do_call::<std[bae7bb90fd99e79c]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:581:40
[INFO] [stderr]     28:     0x55f1cb378154 - std[bae7bb90fd99e79c]::panicking::catch_unwind::<isize, std[bae7bb90fd99e79c]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:544:19
[INFO] [stderr]     29:     0x55f1cb378154 - std[bae7bb90fd99e79c]::panic::catch_unwind::<std[bae7bb90fd99e79c]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x55f1cb378154 - std[bae7bb90fd99e79c]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x55f1cb346501 - std[bae7bb90fd99e79c]::rt::lang_start::<()>
[INFO] [stderr]     32:     0x55f1cb34c035 - main
[INFO] [stderr]     33:     0x749bc25f11ca - <unknown>
[INFO] [stderr]     34:     0x749bc25f128b - __libc_start_main
[INFO] [stderr]     35:     0x55f1cb345dc5 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "5ff46132dba989218096b55d49a463f6ea168ed03e9b31832cdbc1044b642221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ff46132dba989218096b55d49a463f6ea168ed03e9b31832cdbc1044b642221", kill_on_drop: false }`
[INFO] [stdout] 5ff46132dba989218096b55d49a463f6ea168ed03e9b31832cdbc1044b642221