[INFO] updating cached repository christian-blades-cb/bookwords-rs [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/christian-blades-cb/bookwords-rs [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/christian-blades-cb/bookwords-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/christian-blades-cb/bookwords-rs"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/christian-blades-cb/bookwords-rs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/christian-blades-cb/bookwords-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/christian-blades-cb/bookwords-rs"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/christian-blades-cb/bookwords-rs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 72310627d7dd12d75c6152505ef56c6a1bcb29d0 [INFO] sha for GitHub repo christian-blades-cb/bookwords-rs: 72310627d7dd12d75c6152505ef56c6a1bcb29d0 [INFO] validating manifest of christian-blades-cb/bookwords-rs on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of christian-blades-cb/bookwords-rs on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing christian-blades-cb/bookwords-rs [INFO] finished frobbing christian-blades-cb/bookwords-rs [INFO] frobbed toml for christian-blades-cb/bookwords-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/christian-blades-cb/bookwords-rs/Cargo.toml [INFO] started frobbing christian-blades-cb/bookwords-rs [INFO] finished frobbing christian-blades-cb/bookwords-rs [INFO] frobbed toml for christian-blades-cb/bookwords-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/christian-blades-cb/bookwords-rs/Cargo.toml [INFO] crate christian-blades-cb/bookwords-rs already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing christian-blades-cb/bookwords-rs against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/christian-blades-cb/bookwords-rs:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] ca615764c5c66ff546ed2dfd752cbfedf2ca7ff8f99029a16fbb0af70c707608 [INFO] running `"docker" "start" "-a" "ca615764c5c66ff546ed2dfd752cbfedf2ca7ff8f99029a16fbb0af70c707608"` [INFO] [stderr] Compiling openssl-sys v0.9.23 [INFO] [stderr] Compiling iovec v0.1.1 [INFO] [stderr] Compiling rand v0.3.20 [INFO] [stderr] Compiling net2 v0.2.31 [INFO] [stderr] Compiling num_cpus v1.8.0 [INFO] [stderr] Compiling time v0.1.39 [INFO] [stderr] Compiling clap v2.29.1 [INFO] [stderr] Compiling bytes v0.4.6 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling mio v0.6.12 [INFO] [stderr] Compiling tokio-io v0.1.4 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling num-bigint v0.1.41 [INFO] [stderr] Compiling uuid v0.5.1 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling openssl v0.9.23 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.3 [INFO] [stderr] Compiling tokio-core v0.1.12 [INFO] [stderr] Compiling num-rational v0.1.40 [INFO] [stderr] Compiling num v0.1.41 [INFO] [stderr] Compiling tokio-proto v0.1.1 [INFO] [stderr] error: failed to run custom build command for `mime_guess v2.0.0-alpha.3` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-4bd286d5f6d4bf14/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: 0x55af0632d96b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55af0632d96b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55af0632d96b - std::sys_common::backtrace::_print::h24f527b44b6cfc06 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55af0632d96b - std::sys_common::backtrace::print::h712608e4347fd64a [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55af0632d96b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55af0632d646 - std::panicking::default_hook::hb29963fb4747e0dd [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55af0632e02d - std::panicking::rust_panic_with_hook::hd1236c3083de823a [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55af0632dbb2 - std::panicking::continue_panic_fmt::he38ad41d6304a12c [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55af0632da96 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55af063428ed - core::panicking::panic_fmt::h1bc6de43c92ad80c [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55af063429e7 - core::result::unwrap_failed::hd83f272814becce6 [INFO] [stderr] at src/libcore/result.rs:1084 [INFO] [stderr] 11: 0x55af062f3cd0 - core::result::Result::unwrap::h7dd49a06f7dd2d04 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x55af062f5ca5 - build_script_gen_mime_types::main::h050bff2e3a2c649d [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-2.0.0-alpha.3/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x55af062e09d0 - std::rt::lang_start::{{closure}}::hf528d3375ab0c2c7 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55af0632da83 - std::rt::lang_start_internal::{{closure}}::hf367a5a6ae52b0ce [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55af0632da83 - std::panicking::try::do_call::h9d779bc5e27e3284 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55af0632fb7a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 17: 0x55af0632e53d - std::panicking::try::h4af22d9cb0afa351 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55af0632e53d - std::panic::catch_unwind::hbb68a9ada87bfb97 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x55af0632e53d - std::rt::lang_start_internal::hba9e09d74440ce4d [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55af062e09a9 - std::rt::lang_start::h2dae505221444aa8 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55af062f722a - main [INFO] [stderr] 22: 0x7f9502f742e1 - __libc_start_main [INFO] [stderr] 23: 0x55af062cc3da - _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" "ca615764c5c66ff546ed2dfd752cbfedf2ca7ff8f99029a16fbb0af70c707608"` [INFO] running `"docker" "rm" "-f" "ca615764c5c66ff546ed2dfd752cbfedf2ca7ff8f99029a16fbb0af70c707608"` [INFO] [stdout] ca615764c5c66ff546ed2dfd752cbfedf2ca7ff8f99029a16fbb0af70c707608