[INFO] updating cached repository osoco/osoco-xmas2018-wasm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/osoco/osoco-xmas2018-wasm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/osoco/osoco-xmas2018-wasm" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/osoco/osoco-xmas2018-wasm"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/osoco/osoco-xmas2018-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/osoco/osoco-xmas2018-wasm" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/osoco/osoco-xmas2018-wasm"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/osoco/osoco-xmas2018-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e8f53369d06999e5a0a59efe4805ff25e351b1d9
[INFO] sha for GitHub repo osoco/osoco-xmas2018-wasm: e8f53369d06999e5a0a59efe4805ff25e351b1d9
[INFO] validating manifest of osoco/osoco-xmas2018-wasm on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of osoco/osoco-xmas2018-wasm on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing osoco/osoco-xmas2018-wasm
[INFO] finished frobbing osoco/osoco-xmas2018-wasm
[INFO] frobbed toml for osoco/osoco-xmas2018-wasm written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/osoco/osoco-xmas2018-wasm/Cargo.toml
[INFO] started frobbing osoco/osoco-xmas2018-wasm
[INFO] finished frobbing osoco/osoco-xmas2018-wasm
[INFO] frobbed toml for osoco/osoco-xmas2018-wasm written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/osoco/osoco-xmas2018-wasm/Cargo.toml
[INFO] crate osoco/osoco-xmas2018-wasm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking osoco/osoco-xmas2018-wasm against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-1/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/osoco/osoco-xmas2018-wasm:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5aab85e83e6c8f0104213a2213d999a2f2404d69dcc27f7ee80016237a841f78
[INFO] running `"docker" "start" "-a" "5aab85e83e6c8f0104213a2213d999a2f2404d69dcc27f7ee80016237a841f78"`
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking collider v0.3.1
[INFO] [stderr]     Checking sdl2-sys v0.27.3
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]     Checking sdl2 v0.29.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling png v0.9.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling image v0.15.0
[INFO] [stderr]     Checking gate v0.6.2
[INFO] [stderr]    Compiling gate_build v0.6.2
[INFO] [stderr]    Compiling osoco_xmas2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `osoco_xmas2018 v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/osoco_xmas2018-c1a2e9c46dc9c7c1/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'failed to create assets directory: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:1084:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55f3a62590bb - backtrace::backtrace::libunwind::trace::h99e6362fdb92a8eb
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55f3a62590bb - backtrace::backtrace::trace_unsynchronized::hb03857eb223d1e1b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55f3a62590bb - std::sys_common::backtrace::_print::hc504093b15dd6a49
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55f3a62590bb - std::sys_common::backtrace::print::h74592d8df46164e6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55f3a62590bb - std::panicking::default_hook::{{closure}}::h148953d9747d04f4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55f3a6258d96 - std::panicking::default_hook::h72a253311e200c7c
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55f3a625982d - std::panicking::rust_panic_with_hook::h625fcf59e672b6a0
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55f3a62593b2 - std::panicking::continue_panic_fmt::hb865580971245aec
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x55f3a6259296 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x55f3a62717bd - core::panicking::panic_fmt::h88ab02319bb01bbf
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x55f3a62718b7 - core::result::unwrap_failed::hcd16c30e39593715
[INFO] [stderr]                                at src/libcore/result.rs:1084
[INFO] [stderr]   11:     0x55f3a61b0a49 - core::result::Result<T,E>::expect::h85e6fe8c8bcbd596
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libcore/result.rs:879
[INFO] [stderr]   12:     0x55f3a5d70140 - gate_build::asset_packer::AssetPacker::new::h540ee6d220dce105
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gate_build-0.6.2/src/asset_packer.rs:49
[INFO] [stderr]   13:     0x55f3a5d6d98b - build_script_build::main::h9163166be1d1d038
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:32
[INFO] [stderr]   14:     0x55f3a5d6d800 - std::rt::lang_start::{{closure}}::h819b45a059c29acc
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   15:     0x55f3a6259233 - std::rt::lang_start_internal::{{closure}}::h5b4ccd53e4167b89
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   16:     0x55f3a6259233 - std::panicking::try::do_call::h85f9b79f07affa28
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   17:     0x55f3a625d66a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   18:     0x55f3a6259dfd - std::panicking::try::h0463127fe79abe73
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   19:     0x55f3a6259dfd - std::panic::catch_unwind::h846bfd7d9d99e56b
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   20:     0x55f3a6259dfd - std::rt::lang_start_internal::h0a72d627fb2e90ec
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   21:     0x55f3a5d6d7d9 - std::rt::lang_start::h33e5625fdb46c73e
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   22:     0x55f3a5d6dcba - main
[INFO] [stderr]   23:     0x7fc6ddfce2e1 - __libc_start_main
[INFO] [stderr]   24:     0x55f3a5d6cdca - _start
[INFO] [stderr]   25:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "5aab85e83e6c8f0104213a2213d999a2f2404d69dcc27f7ee80016237a841f78"`
[INFO] running `"docker" "rm" "-f" "5aab85e83e6c8f0104213a2213d999a2f2404d69dcc27f7ee80016237a841f78"`
[INFO] [stdout] 5aab85e83e6c8f0104213a2213d999a2f2404d69dcc27f7ee80016237a841f78