[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-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/rrreeeyyy/mrusty-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/rrreeeyyy/mrusty-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rrreeeyyy/mrusty-example" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/rrreeeyyy/mrusty-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/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#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rrreeeyyy/mrusty-example on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-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-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/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-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/rrreeeyyy/mrusty-example/Cargo.toml
[INFO] crate rrreeeyyy/mrusty-example already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/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/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rrreeeyyy/mrusty-example against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-2/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/rrreeeyyy/mrusty-example:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ef56d28b8d8f8d50dc079fa9b17d24f2b634434e4bc8901740f05c21d5672e7a
[INFO] running `"docker" "start" "-a" "ef56d28b8d8f8d50dc079fa9b17d24f2b634434e4bc8901740f05c21d5672e7a"`
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.5
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]    Compiling tar v0.4.23
[INFO] [stderr]    Compiling mrusty v1.0.0
[INFO] [stderr] error: failed to run custom build command for `mrusty v1.0.0`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mrusty-0fdbdedeec741338/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:     0x5582273e1fd3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h805294fd9a8a1853
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x5582273ddbfb - std::sys_common::backtrace::_print::h563674885828f2f5
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x5582273e0dd6 - std::panicking::default_hook::{{closure}}::ha80a0fc374ac4513
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x5582273e0b69 - std::panicking::default_hook::h22bb6d1b97092339
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x5582273e148f - std::panicking::rust_panic_with_hook::hb430545a95762309
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x5582273e1011 - std::panicking::continue_panic_fmt::h5eaf2c376dcf553f
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x5582273e0ef5 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x5582273f8c3c - core::panicking::panic_fmt::ha3c82b3c8b41a4ff
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x5582273a11f7 - core::result::unwrap_failed::h3cd731b2ee2b122c
[INFO] [stderr]                                at /rustc/e305df1846a6d985315917ae0c81b74af8b4e641/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x5582273a322f - core::result::Result<T,E>::unwrap::h6bf3dbe1688d4870
[INFO] [stderr]                                at /rustc/e305df1846a6d985315917ae0c81b74af8b4e641/src/libcore/result.rs:800
[INFO] [stderr]   10:     0x558227332ad1 - build_script_build::main::ha11aa5ca26c4b108
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mrusty-1.0.0/build.rs:26
[INFO] [stderr]   11:     0x55822733317f - std::rt::lang_start::{{closure}}::h0de2f6ba38f2c0cd
[INFO] [stderr]                                at /rustc/e305df1846a6d985315917ae0c81b74af8b4e641/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x5582273e0ee2 - std::panicking::try::do_call::h1f09ded7f50c84d3
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   13:     0x5582273e9c09 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   14:     0x5582273e199c - std::rt::lang_start_internal::hf27f440d51809051
[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:     0x558227333158 - std::rt::lang_start::hded1948e6705ae5a
[INFO] [stderr]                                at /rustc/e305df1846a6d985315917ae0c81b74af8b4e641/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x558227333039 - main
[INFO] [stderr]   17:     0x7f255bc5e2e0 - __libc_start_main
[INFO] [stderr]   18:     0x558227330c79 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "ef56d28b8d8f8d50dc079fa9b17d24f2b634434e4bc8901740f05c21d5672e7a"`
[INFO] running `"docker" "rm" "-f" "ef56d28b8d8f8d50dc079fa9b17d24f2b634434e4bc8901740f05c21d5672e7a"`
[INFO] [stdout] ef56d28b8d8f8d50dc079fa9b17d24f2b634434e4bc8901740f05c21d5672e7a