[INFO] crate sit-core 0.4.1 is already in cache
[INFO] extracting crate sit-core 0.4.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/sit-core/0.4.1
[INFO] extracting crate sit-core 0.4.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sit-core/0.4.1
[INFO] validating manifest of sit-core-0.4.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sit-core-0.4.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sit-core-0.4.1
[INFO] finished frobbing sit-core-0.4.1
[INFO] frobbed toml for sit-core-0.4.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/sit-core/0.4.1/Cargo.toml
[INFO] started frobbing sit-core-0.4.1
[INFO] finished frobbing sit-core-0.4.1
[INFO] frobbed toml for sit-core-0.4.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sit-core/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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] testing sit-core-0.4.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sit-core/0.4.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] ef06f2f94df96fa5b57b3c2cf2a028f957971293ca14eaefa5dd0b1b853f432f
[INFO] running `"docker" "start" "-a" "ef06f2f94df96fa5b57b3c2cf2a028f957971293ca14eaefa5dd0b1b853f432f"`
[INFO] [stderr]    Compiling relative-path v0.3.7
[INFO] [stderr]    Compiling cesu8 v1.1.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling typed-builder v0.1.1
[INFO] [stderr]    Compiling include_dir v0.1.5
[INFO] [stderr]    Compiling sit-core v0.4.1 (/opt/crater/workdir)
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr] error: failed to run custom build command for `sit-core v0.4.1 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/sit-core-9e3b0d805d7349ed/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] OPT_LEVEL = Some("0")
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CC = None
[INFO] [stderr] CC = None
[INFO] [stderr] CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CFLAGS = None
[INFO] [stderr] CFLAGS = None
[INFO] [stderr] CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr] DEBUG = Some("true")
[INFO] [stderr] CARGO_CFG_TARGET_FEATURE = Some("fxsr,sse,sse2")
[INFO] [stderr] running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/crater/target/debug/build/sit-core-b2f3ea30f7c9132a/out/src/duktape/duktape.o" "-c" "src/duktape/duktape.c"
[INFO] [stderr] exit code: 0
[INFO] [stderr] running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/crater/target/debug/build/sit-core-b2f3ea30f7c9132a/out/src/duktape/duk_module_duktape.o" "-c" "src/duktape/duk_module_duktape.c"
[INFO] [stderr] exit code: 0
[INFO] [stderr] AR_x86_64-unknown-linux-gnu = None
[INFO] [stderr] AR_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_AR = None
[INFO] [stderr] AR = None
[INFO] [stderr] running: "ar" "crs" "/opt/crater/target/debug/build/sit-core-b2f3ea30f7c9132a/out/libduktape.a" "/opt/crater/target/debug/build/sit-core-b2f3ea30f7c9132a/out/src/duktape/duktape.o" "/opt/crater/target/debug/build/sit-core-b2f3ea30f7c9132a/out/src/duktape/duk_module_duktape.o"
[INFO] [stderr] exit code: 0
[INFO] [stderr] cargo:rustc-link-lib=static=duktape
[INFO] [stderr] cargo:rustc-link-search=native=/opt/crater/target/debug/build/sit-core-b2f3ea30f7c9132a/out
[INFO] [stderr] cargo:rustc-link-lib=static=duktape
[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:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55df2f706f8b - backtrace::backtrace::libunwind::trace::hfe5db90796807973
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55df2f706f8b - backtrace::backtrace::trace_unsynchronized::h34b865a835594335
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55df2f706f8b - std::sys_common::backtrace::_print::h527254ae44989167
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55df2f706f8b - std::sys_common::backtrace::print::he85dd5ddddf46503
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55df2f706f8b - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55df2f706c67 - std::panicking::default_hook::h2ca0f9a30a0e206b
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55df2f707700 - std::panicking::rust_panic_with_hook::hffcefc09751839d1
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55df2f707282 - std::panicking::continue_panic_fmt::hc0f142c930c846fc
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x55df2f707166 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x55df2f722e7d - core::panicking::panic_fmt::h2daf88b2616ca2b2
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x55df2f6b2b57 - core::result::unwrap_failed::h7c408416e7cb3324
[INFO] [stderr]                                at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/macros.rs:18
[INFO] [stderr]   11:     0x55df2f6b5ccd - core::result::Result<T,E>::unwrap::h3f0734213baa2b95
[INFO] [stderr]                                at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/result.rs:800
[INFO] [stderr]   12:     0x55df2f6214f2 - build_script_build::main::h773175777bd8c687
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:44
[INFO] [stderr]   13:     0x55df2f61c830 - std::rt::lang_start::{{closure}}::hae5129862e4a2b97
[INFO] [stderr]                                at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x55df2f707103 - std::rt::lang_start_internal::{{closure}}::h447d8812e3ee306d
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x55df2f707103 - std::panicking::try::do_call::h4a61cb372364c745
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x55df2f70f85a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   17:     0x55df2f707c0d - std::panicking::try::hdf71f938885bca42
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x55df2f707c0d - std::panic::catch_unwind::h7e85dbf162b1611a
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x55df2f707c0d - std::rt::lang_start_internal::h1e06cc26b9fc25ea
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x55df2f61c809 - std::rt::lang_start::h23817df7dfaa1ca9
[INFO] [stderr]                                at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x55df2f62171a - main
[INFO] [stderr]   22:     0x7fe709feb2e1 - __libc_start_main
[INFO] [stderr]   23:     0x55df2f6191ea - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "ef06f2f94df96fa5b57b3c2cf2a028f957971293ca14eaefa5dd0b1b853f432f"`
[INFO] running `"docker" "rm" "-f" "ef06f2f94df96fa5b57b3c2cf2a028f957971293ca14eaefa5dd0b1b853f432f"`
[INFO] [stdout] ef06f2f94df96fa5b57b3c2cf2a028f957971293ca14eaefa5dd0b1b853f432f