[INFO] updating cached repository not-inept/dict-bot [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/not-inept/dict-bot [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/not-inept/dict-bot" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/not-inept/dict-bot"` [INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/not-inept/dict-bot'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/not-inept/dict-bot" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/not-inept/dict-bot"` [INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/not-inept/dict-bot'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b9e69bea3d3be53ccaada01a3144cdaf1598a37f [INFO] sha for GitHub repo not-inept/dict-bot: b9e69bea3d3be53ccaada01a3144cdaf1598a37f [INFO] validating manifest of not-inept/dict-bot on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of not-inept/dict-bot on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing not-inept/dict-bot [INFO] finished frobbing not-inept/dict-bot [INFO] frobbed toml for not-inept/dict-bot written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/not-inept/dict-bot/Cargo.toml [INFO] started frobbing not-inept/dict-bot [INFO] finished frobbing not-inept/dict-bot [INFO] frobbed toml for not-inept/dict-bot written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/not-inept/dict-bot/Cargo.toml [INFO] crate not-inept/dict-bot already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking not-inept/dict-bot against master#6ea4036cd20a4b1ab1d56e555108c21735ff6946 for pr-62181 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-4/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/not-inept/dict-bot:/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" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] fcf084c7dad1a2c95573b1866f19a068bf8e21737a9529ca232b9edd61c0d963 [INFO] running `"docker" "start" "-a" "fcf084c7dad1a2c95573b1866f19a068bf8e21737a9529ca232b9edd61c0d963"` [INFO] [stderr] Checking encoding_rs v0.7.1 [INFO] [stderr] Checking futures-cpupool v0.1.7 [INFO] [stderr] Checking parking_lot_core v0.2.7 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Checking tempdir v0.3.5 [INFO] [stderr] Checking tokio-core v0.1.10 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking chrono v0.4.0 [INFO] [stderr] Checking error-chain v0.11.0 [INFO] [stderr] Checking hyper-native-tls v0.2.4 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Checking evzht9h3nznqzwl v0.0.2 [INFO] [stderr] Checking parking_lot v0.4.8 [INFO] [stderr] Compiling mime_guess v1.8.3 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking tokio-tls v0.1.3 [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-9eeb46398712cc52/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:999:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55d7c5d32bcb - backtrace::backtrace::libunwind::trace::h399a7a5a1c92b2d8 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55d7c5d32bcb - backtrace::backtrace::trace_unsynchronized::h76e29b9231dd0873 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55d7c5d32bcb - std::sys_common::backtrace::_print::hb092bf553e068953 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55d7c5d32bcb - std::sys_common::backtrace::print::h3407b08071f3f520 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55d7c5d32bcb - std::panicking::default_hook::{{closure}}::hc3b8cf51c83ab26e [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55d7c5d328a7 - std::panicking::default_hook::h54ef93848f2476c8 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55d7c5d33290 - std::panicking::rust_panic_with_hook::hf0df85aa51810823 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55d7c5d32e12 - std::panicking::continue_panic_fmt::hd822862a3dda0081 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55d7c5d32cf6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55d7c5d479fd - core::panicking::panic_fmt::h569fafe348e0c6f0 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55d7c5d25be8 - core::result::unwrap_failed::hdcc3e1e096e69675 [INFO] [stderr] at /rustc/6ea4036cd20a4b1ab1d56e555108c21735ff6946/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x55d7c5cf374c - core::result::Result::unwrap::h86ca98d36dbd0823 [INFO] [stderr] at /rustc/6ea4036cd20a4b1ab1d56e555108c21735ff6946/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x55d7c5cf69a5 - build_script_gen_mime_types::main::he70e900d48e752fb [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: 0x55d7c5d1d180 - std::rt::lang_start::{{closure}}::h2cbf57b10aaa284c [INFO] [stderr] at /rustc/6ea4036cd20a4b1ab1d56e555108c21735ff6946/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55d7c5d32ce3 - std::rt::lang_start_internal::{{closure}}::he78638434283b545 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55d7c5d32ce3 - std::panicking::try::do_call::h355c93ec0a462271 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55d7c5d34c2a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55d7c5d3379d - std::panicking::try::h3918ed6cf08237ff [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55d7c5d3379d - std::panic::catch_unwind::h8b2e693598ba7028 [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x55d7c5d3379d - std::rt::lang_start_internal::h78590588d24f24ba [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55d7c5d1d159 - std::rt::lang_start::h5ab2789259908a87 [INFO] [stderr] at /rustc/6ea4036cd20a4b1ab1d56e555108c21735ff6946/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55d7c5cf7fda - main [INFO] [stderr] 22: 0x7f170c69f2e1 - __libc_start_main [INFO] [stderr] 23: 0x55d7c5cd23fa - _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" "fcf084c7dad1a2c95573b1866f19a068bf8e21737a9529ca232b9edd61c0d963"` [INFO] running `"docker" "rm" "-f" "fcf084c7dad1a2c95573b1866f19a068bf8e21737a9529ca232b9edd61c0d963"` [INFO] [stdout] fcf084c7dad1a2c95573b1866f19a068bf8e21737a9529ca232b9edd61c0d963