[INFO] updating cached repository giansalex/iron-web [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/giansalex/iron-web [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/giansalex/iron-web" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/giansalex/iron-web"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/giansalex/iron-web'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/giansalex/iron-web" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/giansalex/iron-web"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/giansalex/iron-web'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 1626c154c199ce584816d2a02025287fb7082c68 [INFO] sha for GitHub repo giansalex/iron-web: 1626c154c199ce584816d2a02025287fb7082c68 [INFO] validating manifest of giansalex/iron-web on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of giansalex/iron-web on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing giansalex/iron-web [INFO] finished frobbing giansalex/iron-web [INFO] frobbed toml for giansalex/iron-web written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/giansalex/iron-web/Cargo.toml [INFO] started frobbing giansalex/iron-web [INFO] finished frobbing giansalex/iron-web [INFO] frobbed toml for giansalex/iron-web written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/giansalex/iron-web/Cargo.toml [INFO] crate giansalex/iron-web already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking giansalex/iron-web against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-0/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/giansalex/iron-web:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 370cf2800ee6bf06eb950c84cbba99ed99e8991d68c65b1d19c41a2c6d61016b [INFO] running `"docker" "start" "-a" "370cf2800ee6bf06eb950c84cbba99ed99e8991d68c65b1d19c41a2c6d61016b"` [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-c50ce7fb602d2ee3/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:1051:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55d8255c055b - backtrace::backtrace::libunwind::trace::h4f04af92f39f2b78 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55d8255c055b - backtrace::backtrace::trace_unsynchronized::hb28ce8d2b7fb3e31 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55d8255c055b - std::sys_common::backtrace::_print::he3f49d2d13a51ff1 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55d8255c055b - std::sys_common::backtrace::print::h46c2f3b13519e9bf [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55d8255c055b - std::panicking::default_hook::{{closure}}::h6694acddafc67583 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55d8255c0237 - std::panicking::default_hook::hb4761d2feeb6d93c [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55d8255c0c20 - std::panicking::rust_panic_with_hook::h7a5f9620b0a832bc [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55d8255c07a2 - std::panicking::continue_panic_fmt::h76588b16c9674f9c [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55d8255c0686 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55d8255d538d - core::panicking::panic_fmt::hcce9be08ab68e123 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55d8255b2f28 - core::result::unwrap_failed::h6e76cbe839f38ba5 [INFO] [stderr] at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x55d8255805ec - core::result::Result::unwrap::h3e4b134c70c6feef [INFO] [stderr] at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x55d8255837e5 - build_script_gen_mime_types::main::h75a608db4f4784b9 [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: 0x55d8255aa190 - std::rt::lang_start::{{closure}}::hdf5e77a0d17c53c3 [INFO] [stderr] at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55d8255c0673 - std::rt::lang_start_internal::{{closure}}::h32e298b4b9152770 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55d8255c0673 - std::panicking::try::do_call::hc8de7cda8a6a61da [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55d8255c25ba - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55d8255c112d - std::panicking::try::h2d3ab36572ae54da [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55d8255c112d - std::panic::catch_unwind::h4b587439b0094333 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x55d8255c112d - std::rt::lang_start_internal::h0772ca1bc29dd619 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55d8255aa169 - std::rt::lang_start::h238b32b961b63e67 [INFO] [stderr] at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55d825584e1a - main [INFO] [stderr] 22: 0x7f98fd4702e1 - __libc_start_main [INFO] [stderr] 23: 0x55d82555f1ea - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "370cf2800ee6bf06eb950c84cbba99ed99e8991d68c65b1d19c41a2c6d61016b"` [INFO] running `"docker" "rm" "-f" "370cf2800ee6bf06eb950c84cbba99ed99e8991d68c65b1d19c41a2c6d61016b"` [INFO] [stdout] 370cf2800ee6bf06eb950c84cbba99ed99e8991d68c65b1d19c41a2c6d61016b