[INFO] updating cached repository scsmithr/swerve [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/scsmithr/swerve [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/scsmithr/swerve" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/scsmithr/swerve"` [INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/scsmithr/swerve'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/scsmithr/swerve" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/scsmithr/swerve"` [INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/scsmithr/swerve'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 840b001e456a28fd21303ec00d6e69ac5b8ea297 [INFO] sha for GitHub repo scsmithr/swerve: 840b001e456a28fd21303ec00d6e69ac5b8ea297 [INFO] validating manifest of scsmithr/swerve on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of scsmithr/swerve on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing scsmithr/swerve [INFO] finished frobbing scsmithr/swerve [INFO] frobbed toml for scsmithr/swerve written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/scsmithr/swerve/Cargo.toml [INFO] started frobbing scsmithr/swerve [INFO] finished frobbing scsmithr/swerve [INFO] frobbed toml for scsmithr/swerve written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/scsmithr/swerve/Cargo.toml [INFO] crate scsmithr/swerve already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking scsmithr/swerve against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-0/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/scsmithr/swerve:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] e26b104bdc2089da3da38f1ca4f6bed4de83206db3aa523dd93631c3795b3350 [INFO] running `"docker" "start" "-a" "e26b104bdc2089da3da38f1ca4f6bed4de83206db3aa523dd93631c3795b3350"` [INFO] [stderr] Compiling libc v0.2.35 [INFO] [stderr] Checking sequence_trie v0.3.5 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking time v0.1.39 [INFO] [stderr] Checking hyper v0.10.13 [INFO] [stderr] Compiling rand v0.3.20 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling mime_guess v1.8.3 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.3` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-0ceea7f868f0cdcf/build-script-gen_mime_types` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:1084:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55ca7c7713fb - backtrace::backtrace::libunwind::trace::h80786597adfabf72 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55ca7c7713fb - backtrace::backtrace::trace_unsynchronized::hcac650387ca20819 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55ca7c7713fb - std::sys_common::backtrace::_print::h1b9354ff68cb5a2b [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55ca7c7713fb - std::sys_common::backtrace::print::hee32569be499cf66 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55ca7c7713fb - std::panicking::default_hook::{{closure}}::h57d4a5a18212e6c4 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55ca7c7710d6 - std::panicking::default_hook::h6b5ac8e0c8ee81de [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55ca7c771abd - std::panicking::rust_panic_with_hook::h087293a0d0382d86 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55ca7c771642 - std::panicking::continue_panic_fmt::h5398c0b14056de59 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55ca7c771526 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55ca7c78625d - core::panicking::panic_fmt::hc22ef80bd93ddcf4 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55ca7c786357 - core::result::unwrap_failed::h52618310aa6d47ad [INFO] [stderr] at src/libcore/result.rs:1084 [INFO] [stderr] 11: 0x55ca7c737ac0 - core::result::Result::unwrap::h779b47cdbe8963e0 [INFO] [stderr] at /rustc/b5c7f157c20453dde8d47371abe73b32351b4e7f/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x55ca7c7395e5 - build_script_gen_mime_types::main::h3f6d9385e1196325 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.3/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x55ca7c7245b0 - std::rt::lang_start::{{closure}}::h845b2e60377f4fee [INFO] [stderr] at /rustc/b5c7f157c20453dde8d47371abe73b32351b4e7f/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55ca7c771513 - std::rt::lang_start_internal::{{closure}}::h1a060554ddace6f7 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55ca7c771513 - std::panicking::try::do_call::h36cfd8d9c1d0d936 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55ca7c77360a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 17: 0x55ca7c771fcd - std::panicking::try::h225224763b892cde [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55ca7c771fcd - std::panic::catch_unwind::h3043ed737cbd6e8e [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x55ca7c771fcd - std::rt::lang_start_internal::h97b8d999a39debed [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55ca7c724589 - std::rt::lang_start::hf08e6ad7506c17fc [INFO] [stderr] at /rustc/b5c7f157c20453dde8d47371abe73b32351b4e7f/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55ca7c73ab6a - main [INFO] [stderr] 22: 0x7fb94827a2e1 - __libc_start_main [INFO] [stderr] 23: 0x55ca7c70ffba - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "e26b104bdc2089da3da38f1ca4f6bed4de83206db3aa523dd93631c3795b3350"` [INFO] running `"docker" "rm" "-f" "e26b104bdc2089da3da38f1ca4f6bed4de83206db3aa523dd93631c3795b3350"` [INFO] [stdout] e26b104bdc2089da3da38f1ca4f6bed4de83206db3aa523dd93631c3795b3350