[INFO] updating cached repository stpettersens/robots [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/stpettersens/robots [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/stpettersens/robots" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/stpettersens/robots"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/stpettersens/robots'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/stpettersens/robots" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/stpettersens/robots"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/stpettersens/robots'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] f79ff17cc5fc7a64a1578f572bed5f4a1ffecb85 [INFO] sha for GitHub repo stpettersens/robots: f79ff17cc5fc7a64a1578f572bed5f4a1ffecb85 [INFO] validating manifest of stpettersens/robots on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of stpettersens/robots on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing stpettersens/robots [INFO] finished frobbing stpettersens/robots [INFO] frobbed toml for stpettersens/robots written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/stpettersens/robots/Cargo.toml [INFO] started frobbing stpettersens/robots [INFO] finished frobbing stpettersens/robots [INFO] frobbed toml for stpettersens/robots written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/stpettersens/robots/Cargo.toml [INFO] crate stpettersens/robots already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking stpettersens/robots against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/stpettersens/robots:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 9ac08909a789d37edfa2d72682d19354289b0516a6072370797953baa306078d [INFO] running `"docker" "start" "-a" "9ac08909a789d37edfa2d72682d19354289b0516a6072370797953baa306078d"` [INFO] [stderr] Compiling libc v0.2.26 [INFO] [stderr] Compiling sqlite3-src v0.2.7 [INFO] [stderr] Checking serde_json v0.8.6 [INFO] [stderr] Checking num-complex v0.1.39 [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Checking num_cpus v1.6.2 [INFO] [stderr] Checking time v0.1.38 [INFO] [stderr] Checking memchr v1.0.1 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking sqlite3-sys v0.12.0 [INFO] [stderr] Checking sqlite v0.23.4 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking hyper v0.10.12 [INFO] [stderr] Checking num-bigint v0.1.40 [INFO] [stderr] Checking tempdir v0.3.5 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking regex v0.2.2 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling mime_guess v1.8.1 [INFO] [stderr] Checking num-rational v0.1.39 [INFO] [stderr] Checking num v0.1.40 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.1` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-11d384172a553102/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: 0x561dd842513b - backtrace::backtrace::libunwind::trace::h3a6a6e8afb7ff2de [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x561dd842513b - backtrace::backtrace::trace_unsynchronized::h2220292c79f07c05 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x561dd842513b - std::sys_common::backtrace::_print::h8ff1c2c5cb3b84f7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x561dd842513b - std::sys_common::backtrace::print::h2254c58d69a73304 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x561dd842513b - std::panicking::default_hook::{{closure}}::hc21cbd062363cef6 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x561dd8424e16 - std::panicking::default_hook::hfea076cda52c2914 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x561dd84257fd - std::panicking::rust_panic_with_hook::h746830f9f479e849 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x561dd8425382 - std::panicking::continue_panic_fmt::h37fa2235c2440555 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x561dd8425266 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x561dd843a0bd - core::panicking::panic_fmt::hc32305cc7ba59cf9 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x561dd843a1b7 - core::result::unwrap_failed::h11b2f6982d0c0006 [INFO] [stderr] at src/libcore/result.rs:1084 [INFO] [stderr] 11: 0x561dd83ebbe0 - core::result::Result::unwrap::he23c9066e69157c6 [INFO] [stderr] at /rustc/266783e4e09e4e9d5307c1c8e695659c58bbcac7/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x561dd83edbb5 - build_script_gen_mime_types::main::ha2da9044b8d1b4fc [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.1/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x561dd83d88e0 - std::rt::lang_start::{{closure}}::h39f95df808fe26e5 [INFO] [stderr] at /rustc/266783e4e09e4e9d5307c1c8e695659c58bbcac7/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x561dd8425253 - std::rt::lang_start_internal::{{closure}}::h14c5bec2472d54ad [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x561dd8425253 - std::panicking::try::do_call::h88f516924fc6a288 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x561dd842734a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 17: 0x561dd8425d0d - std::panicking::try::ha613ca8bf0a1302a [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x561dd8425d0d - std::panic::catch_unwind::h68d4ca98047bc7c5 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x561dd8425d0d - std::rt::lang_start_internal::h600c3ba1b556e68a [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x561dd83d88b9 - std::rt::lang_start::h2bd0ef2c8d4c0ed8 [INFO] [stderr] at /rustc/266783e4e09e4e9d5307c1c8e695659c58bbcac7/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x561dd83ef13a - main [INFO] [stderr] 22: 0x7f739bb6a2e1 - __libc_start_main [INFO] [stderr] 23: 0x561dd83c42ea - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "9ac08909a789d37edfa2d72682d19354289b0516a6072370797953baa306078d"` [INFO] running `"docker" "rm" "-f" "9ac08909a789d37edfa2d72682d19354289b0516a6072370797953baa306078d"` [INFO] [stdout] 9ac08909a789d37edfa2d72682d19354289b0516a6072370797953baa306078d