[INFO] updating cached repository peopleagainstprisons/earmms_keyderiv
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/peopleagainstprisons/earmms_keyderiv
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/peopleagainstprisons/earmms_keyderiv" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/peopleagainstprisons/earmms_keyderiv"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/peopleagainstprisons/earmms_keyderiv'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/peopleagainstprisons/earmms_keyderiv" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/peopleagainstprisons/earmms_keyderiv"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/peopleagainstprisons/earmms_keyderiv'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8906fe635f1d2538ec024812883fd793c2158f0
[INFO] sha for GitHub repo peopleagainstprisons/earmms_keyderiv: b8906fe635f1d2538ec024812883fd793c2158f0
[INFO] validating manifest of peopleagainstprisons/earmms_keyderiv 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 peopleagainstprisons/earmms_keyderiv 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 peopleagainstprisons/earmms_keyderiv
[INFO] finished frobbing peopleagainstprisons/earmms_keyderiv
[INFO] frobbed toml for peopleagainstprisons/earmms_keyderiv written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/peopleagainstprisons/earmms_keyderiv/Cargo.toml
[INFO] started frobbing peopleagainstprisons/earmms_keyderiv
[INFO] finished frobbing peopleagainstprisons/earmms_keyderiv
[INFO] frobbed toml for peopleagainstprisons/earmms_keyderiv written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/peopleagainstprisons/earmms_keyderiv/Cargo.toml
[INFO] crate peopleagainstprisons/earmms_keyderiv 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking peopleagainstprisons/earmms_keyderiv against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-5/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/peopleagainstprisons/earmms_keyderiv:/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] 41a900914fe407a4b14dfd1807ac95b9c0369888ac0670943a9cd1553bed887e
[INFO] running `"docker" "start" "-a" "41a900914fe407a4b14dfd1807ac95b9c0369888ac0670943a9cd1553bed887e"`
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling unwrap v1.2.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.2.0
[INFO] [stderr]     Checking num-complex v0.1.41
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling rand v0.3.20
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling filetime v0.2.4
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.4.5
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling tar v0.4.20
[INFO] [stderr]     Checking twoway v0.1.7
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking buf_redux v0.6.1
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling openssl v0.10.16
[INFO] [stderr]     Checking backtrace v0.3.12
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking num-bigint v0.1.41
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr]    Compiling flate2 v1.0.6
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]    Compiling zip v0.3.3
[INFO] [stderr]    Compiling mime_guess v1.8.3
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking dotenv v0.13.0
[INFO] [stderr]    Compiling http_req v0.2.1
[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-5d133b05f5079543/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:     0x562fc874655b - 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:     0x562fc874655b - 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:     0x562fc874655b - std::sys_common::backtrace::_print::he3f49d2d13a51ff1
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x562fc874655b - std::sys_common::backtrace::print::h46c2f3b13519e9bf
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x562fc874655b - std::panicking::default_hook::{{closure}}::h6694acddafc67583
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x562fc8746237 - std::panicking::default_hook::hb4761d2feeb6d93c
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x562fc8746c20 - std::panicking::rust_panic_with_hook::h7a5f9620b0a832bc
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x562fc87467a2 - std::panicking::continue_panic_fmt::h76588b16c9674f9c
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x562fc8746686 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x562fc875b38d - core::panicking::panic_fmt::hcce9be08ab68e123
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x562fc8738f28 - core::result::unwrap_failed::ha73ba5dcc957c68a
[INFO] [stderr]                                at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libcore/macros.rs:18
[INFO] [stderr]   11:     0x562fc87066ac - core::result::Result<T,E>::unwrap::h9c5a74ad7c694556
[INFO] [stderr]                                at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libcore/result.rs:852
[INFO] [stderr]   12:     0x562fc87097c5 - build_script_gen_mime_types::main::hbcfc819f09c39d9a
[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:     0x562fc8730170 - std::rt::lang_start::{{closure}}::h95133b68f0cd8df9
[INFO] [stderr]                                at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x562fc8746673 - std::rt::lang_start_internal::{{closure}}::h32e298b4b9152770
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x562fc8746673 - std::panicking::try::do_call::hc8de7cda8a6a61da
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x562fc87485ba - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   17:     0x562fc874712d - std::panicking::try::h2d3ab36572ae54da
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x562fc874712d - std::panic::catch_unwind::h4b587439b0094333
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x562fc874712d - std::rt::lang_start_internal::h0772ca1bc29dd619
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x562fc8730149 - std::rt::lang_start::h2dbd9de04f5ad418
[INFO] [stderr]                                at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x562fc870adfa - main
[INFO] [stderr]   22:     0x7f2fd92122e1 - __libc_start_main
[INFO] [stderr]   23:     0x562fc86e51ea - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "41a900914fe407a4b14dfd1807ac95b9c0369888ac0670943a9cd1553bed887e"`
[INFO] running `"docker" "rm" "-f" "41a900914fe407a4b14dfd1807ac95b9c0369888ac0670943a9cd1553bed887e"`
[INFO] [stdout] 41a900914fe407a4b14dfd1807ac95b9c0369888ac0670943a9cd1553bed887e