[INFO] updating cached repository asonix/lottievixen-sneepsnop
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asonix/lottievixen-sneepsnop
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asonix/lottievixen-sneepsnop" "work/ex/beta-1.37-6/sources/1.36.0/gh/asonix/lottievixen-sneepsnop"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/asonix/lottievixen-sneepsnop'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asonix/lottievixen-sneepsnop" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/asonix/lottievixen-sneepsnop"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/asonix/lottievixen-sneepsnop'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec2ac00d35916b00f5c7f2586514851b8e44872f
[INFO] sha for GitHub repo asonix/lottievixen-sneepsnop: ec2ac00d35916b00f5c7f2586514851b8e44872f
[INFO] validating manifest of asonix/lottievixen-sneepsnop on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of asonix/lottievixen-sneepsnop on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing asonix/lottievixen-sneepsnop
[INFO] finished frobbing asonix/lottievixen-sneepsnop
[INFO] frobbed toml for asonix/lottievixen-sneepsnop written to work/ex/beta-1.37-6/sources/1.36.0/gh/asonix/lottievixen-sneepsnop/Cargo.toml
[INFO] started frobbing asonix/lottievixen-sneepsnop
[INFO] finished frobbing asonix/lottievixen-sneepsnop
[INFO] frobbed toml for asonix/lottievixen-sneepsnop written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/asonix/lottievixen-sneepsnop/Cargo.toml
[INFO] crate asonix/lottievixen-sneepsnop already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing asonix/lottievixen-sneepsnop against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/asonix/lottievixen-sneepsnop:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] ce0011d9df3a3196ccfd2f4e42a4d16dfbe51e2aa9bb93cb73158287abafd624
[INFO] running `"docker" "start" "-a" "ce0011d9df3a3196ccfd2f4e42a4d16dfbe51e2aa9bb93cb73158287abafd624"`
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]    Compiling lazycell v0.5.1
[INFO] [stderr]    Compiling futures v0.1.17
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]    Compiling httparse v1.2.3
[INFO] [stderr]    Compiling serde v1.0.24
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling serde_derive_internals v0.18.0
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling crc v1.6.0
[INFO] [stderr]    Compiling num v0.1.41
[INFO] [stderr]    Compiling iovec v0.1.1
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling libflate v0.1.12
[INFO] [stderr]    Compiling bytes v0.4.5
[INFO] [stderr]    Compiling mio v0.6.11
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling openssl-sys v0.9.23
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling serde_derive v1.0.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.3
[INFO] [stderr]    Compiling tokio-io v0.1.4
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.7
[INFO] [stderr]    Compiling relay v0.1.0
[INFO] [stderr]    Compiling openssl v0.9.23
[INFO] [stderr]    Compiling tokio-core v0.1.11
[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-b1310be1386ba9d8/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:     0x55e1c504be03 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x55e1c5047a1b - std::sys_common::backtrace::_print::h49a82ae9552e35c7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55e1c504ac76 - std::panicking::default_hook::{{closure}}::he20974adbefcc046
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x55e1c504aa09 - std::panicking::default_hook::he4af6af4ac7fef7b
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55e1c504b2cf - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55e1c504ae51 - std::panicking::continue_panic_fmt::ha6d6ae144369025b
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x55e1c504ad35 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x55e1c505bbac - core::panicking::panic_fmt::hc4f83bfed80aeabd
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x55e1c503cac7 - core::result::unwrap_failed::hba0a0617d23e58bb
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x55e1c50091aa - core::result::Result<T,E>::unwrap::h52fec51395023d88
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/result.rs:800
[INFO] [stderr]   10:     0x55e1c50143a4 - build_script_gen_mime_types::main::h67ecfc7beb6ab9af
[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]   11:     0x55e1c50332ef - std::rt::lang_start::{{closure}}::h7ac1eaea9af7eeac
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x55e1c504ad22 - std::panicking::try::do_call::hc3d8373a0b215f51
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   13:     0x55e1c504d259 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   14:     0x55e1c504b7dc - std::rt::lang_start_internal::he5218c8b95d395f2
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   15:     0x55e1c50332c8 - std::rt::lang_start::h9673cf105843865e
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x55e1c50159e9 - main
[INFO] [stderr]   17:     0x7ff36dd6d2e0 - __libc_start_main
[INFO] [stderr]   18:     0x55e1c4fe95b9 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ce0011d9df3a3196ccfd2f4e42a4d16dfbe51e2aa9bb93cb73158287abafd624"`
[INFO] running `"docker" "rm" "-f" "ce0011d9df3a3196ccfd2f4e42a4d16dfbe51e2aa9bb93cb73158287abafd624"`
[INFO] [stdout] ce0011d9df3a3196ccfd2f4e42a4d16dfbe51e2aa9bb93cb73158287abafd624