[INFO] updating cached repository rrreeeyyy/mrusty-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rrreeeyyy/mrusty-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rrreeeyyy/mrusty-example" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/rrreeeyyy/mrusty-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/rrreeeyyy/mrusty-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rrreeeyyy/mrusty-example" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/rrreeeyyy/mrusty-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/rrreeeyyy/mrusty-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 00ac89f1e7189016c99f61bb11281072b7615ee2
[INFO] sha for GitHub repo rrreeeyyy/mrusty-example: 00ac89f1e7189016c99f61bb11281072b7615ee2
[INFO] validating manifest of rrreeeyyy/mrusty-example on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rrreeeyyy/mrusty-example on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rrreeeyyy/mrusty-example
[INFO] finished frobbing rrreeeyyy/mrusty-example
[INFO] frobbed toml for rrreeeyyy/mrusty-example written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/rrreeeyyy/mrusty-example/Cargo.toml
[INFO] started frobbing rrreeeyyy/mrusty-example
[INFO] finished frobbing rrreeeyyy/mrusty-example
[INFO] frobbed toml for rrreeeyyy/mrusty-example written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/rrreeeyyy/mrusty-example/Cargo.toml
[INFO] crate rrreeeyyy/mrusty-example already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/rrreeeyyy/mrusty-example/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rrreeeyyy/mrusty-example against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-5/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/rrreeeyyy/mrusty-example:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ec07a5891a894abf357a843ce91c3d88d68100b2ea3c595963d50668bcda6483
[INFO] running `"docker" "start" "-a" "ec07a5891a894abf357a843ce91c3d88d68100b2ea3c595963d50668bcda6483"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling filetime v0.2.6
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling mrusty v1.0.0
[INFO] [stderr] error: failed to run custom build command for `mrusty v1.0.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/mrusty-99ed94082715a789/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Custom { kind: Other, error: TarError { desc: "failed to create `target`", io: Os { code: 30, kind: Other, message: "Read-only file system" } } }', src/libcore/result.rs:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55b58d596133 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hccbe8d45d7484fda
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x55b58d591d1b - std::sys_common::backtrace::_print::h59087b8c7775eb90
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55b58d594ef6 - std::panicking::default_hook::{{closure}}::h32749f0e2c293c0c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x55b58d594c8b - std::panicking::default_hook::h550715cdd86b36ad
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55b58d5955af - std::panicking::rust_panic_with_hook::hcf0daecbf39921f5
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55b58d595131 - std::panicking::continue_panic_fmt::ha5d9448e58fe5b5c
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x55b58d595015 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x55b58d5ad26c - core::panicking::panic_fmt::h3e51accd26be5a40
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x55b58d554df7 - core::result::unwrap_failed::h1e382d7ba4cb6842
[INFO] [stderr]                                at /rustc/8869ee03d7f258e1b76a11c6fbb01b5708a9f504/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x55b58d556dfc - core::result::Result<T,E>::unwrap::h2c03bc79c5160a67
[INFO] [stderr]                                at /rustc/8869ee03d7f258e1b76a11c6fbb01b5708a9f504/src/libcore/result.rs:800
[INFO] [stderr]   10:     0x55b58d4e313b - build_script_build::main::h5257af00c43d0214
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mrusty-1.0.0/build.rs:26
[INFO] [stderr]   11:     0x55b58d4e2fdf - std::rt::lang_start::{{closure}}::hf07e5f2a5fb5e334
[INFO] [stderr]                                at /rustc/8869ee03d7f258e1b76a11c6fbb01b5708a9f504/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x55b58d595002 - std::panicking::try::do_call::h8c864a5f35670176
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   13:     0x55b58d59e1c9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   14:     0x55b58d595abc - std::rt::lang_start_internal::h763af17830f82761
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   15:     0x55b58d4e2fb8 - std::rt::lang_start::hbf1c646acfe43db7
[INFO] [stderr]                                at /rustc/8869ee03d7f258e1b76a11c6fbb01b5708a9f504/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x55b58d4e3699 - main
[INFO] [stderr]   17:     0x7f23fdf0d2e0 - __libc_start_main
[INFO] [stderr]   18:     0x55b58d4e2529 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "ec07a5891a894abf357a843ce91c3d88d68100b2ea3c595963d50668bcda6483"`
[INFO] running `"docker" "rm" "-f" "ec07a5891a894abf357a843ce91c3d88d68100b2ea3c595963d50668bcda6483"`
[INFO] [stdout] ec07a5891a894abf357a843ce91c3d88d68100b2ea3c595963d50668bcda6483