[INFO] crate reproto-path-parser 0.3.36 is already in cache
[INFO] extracting crate reproto-path-parser 0.3.36 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/reproto-path-parser/0.3.36
[INFO] extracting crate reproto-path-parser 0.3.36 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/reproto-path-parser/0.3.36
[INFO] validating manifest of reproto-path-parser-0.3.36 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of reproto-path-parser-0.3.36 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing reproto-path-parser-0.3.36
[INFO] finished frobbing reproto-path-parser-0.3.36
[INFO] frobbed toml for reproto-path-parser-0.3.36 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/reproto-path-parser/0.3.36/Cargo.toml
[INFO] started frobbing reproto-path-parser-0.3.36
[INFO] finished frobbing reproto-path-parser-0.3.36
[INFO] frobbed toml for reproto-path-parser-0.3.36 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/reproto-path-parser/0.3.36/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking reproto-path-parser-0.3.36 against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-2/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/reproto-path-parser/0.3.36:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6918851436bb61e2142acd22c1db55968b0604d657df0597cb44267ce3cfd08f
[INFO] running `"docker" "start" "-a" "6918851436bb61e2142acd22c1db55968b0604d657df0597cb44267ce3cfd08f"`
[INFO] [stderr]    Compiling lalrpop-util v0.15.2
[INFO] [stderr]     Checking reproto-path-lexer v0.3.36
[INFO] [stderr]     Checking ropey v0.6.3
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]     Checking serde_test v1.0.99
[INFO] [stderr]     Checking relative-path v0.3.7
[INFO] [stderr]     Checking reproto-semver v0.3.36
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking reproto-core v0.3.36
[INFO] [stderr]     Checking reproto-lexer v0.3.36
[INFO] [stderr]     Checking reproto-ast v0.3.36
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling docopt v0.8.3
[INFO] [stderr]    Compiling lalrpop-snap v0.15.2
[INFO] [stderr]    Compiling lalrpop v0.15.2
[INFO] [stderr]    Compiling reproto-path-parser v0.3.36 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `reproto-path-parser v0.3.36 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/reproto-path-parser-4dc72461064f341f/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] processing file `/opt/crater/workdir/parser.lalrpop`
[INFO] [stderr] 
[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:1084:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x561b0a2d986b - backtrace::backtrace::libunwind::trace::h5d27dcba3b250cfe
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x561b0a2d986b - backtrace::backtrace::trace_unsynchronized::h239341a8b1cadbab
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561b0a2d986b - std::sys_common::backtrace::_print::hb0e5dd39180a1838
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x561b0a2d986b - std::sys_common::backtrace::print::h9b385b2285f057b8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x561b0a2d986b - std::panicking::default_hook::{{closure}}::he3310a15a78966b4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x561b0a2d9546 - std::panicking::default_hook::h2986f418df62eff4
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x561b0a2d9f7d - std::panicking::rust_panic_with_hook::h15065386631d2a9d
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x561b0a2d9b02 - std::panicking::continue_panic_fmt::h5e7761875fda3864
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x561b0a2d99e6 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x561b0a2f339d - core::panicking::panic_fmt::ha57541b4d360b196
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x561b0a2f3497 - core::result::unwrap_failed::h30a7262287ea7c1e
[INFO] [stderr]                                at src/libcore/result.rs:1084
[INFO] [stderr]   11:     0x561b097e75f8 - core::result::Result<T,E>::unwrap::he18d749530aeacc5
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libcore/result.rs:852
[INFO] [stderr]   12:     0x561b097e767c - build_script_build::main::h83d2beec42a337c8
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:5
[INFO] [stderr]   13:     0x561b097e7bc0 - std::rt::lang_start::{{closure}}::hbcb701205dd5f58b
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x561b0a2d9983 - std::rt::lang_start_internal::{{closure}}::hbf4603a1e6e1424d
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x561b0a2d9983 - std::panicking::try::do_call::h7642e0de797eeae0
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x561b0a2dc89a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   17:     0x561b0a2da48d - std::panicking::try::h17f145530f8b5a3f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x561b0a2da48d - std::panic::catch_unwind::hcee1b9b07ea0f9dc
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x561b0a2da48d - std::rt::lang_start_internal::h82d44298f58b2cfd
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x561b097e7b99 - std::rt::lang_start::h2429bf5e9e018190
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x561b097e76da - main
[INFO] [stderr]   22:     0x7fee662332e1 - __libc_start_main
[INFO] [stderr]   23:     0x561b097e740a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "6918851436bb61e2142acd22c1db55968b0604d657df0597cb44267ce3cfd08f"`
[INFO] running `"docker" "rm" "-f" "6918851436bb61e2142acd22c1db55968b0604d657df0597cb44267ce3cfd08f"`
[INFO] [stdout] 6918851436bb61e2142acd22c1db55968b0604d657df0597cb44267ce3cfd08f