[INFO] crate klt-sys 0.1.0 is already in cache
[INFO] extracting crate klt-sys 0.1.0 into work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/klt-sys/0.1.0
[INFO] extracting crate klt-sys 0.1.0 into work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/klt-sys/0.1.0
[INFO] validating manifest of klt-sys-0.1.0 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 klt-sys-0.1.0 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 klt-sys-0.1.0
[INFO] finished frobbing klt-sys-0.1.0
[INFO] frobbed toml for klt-sys-0.1.0 written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/klt-sys/0.1.0/Cargo.toml
[INFO] started frobbing klt-sys-0.1.0
[INFO] finished frobbing klt-sys-0.1.0
[INFO] frobbed toml for klt-sys-0.1.0 written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/klt-sys/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] checking klt-sys-0.1.0 against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-3/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/klt-sys/0.1.0:/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] 51ea3739a907afad709d4b80e46cf1ef6f2c40d35a53858136a82f39f39a3537
[INFO] running `"docker" "start" "-a" "51ea3739a907afad709d4b80e46cf1ef6f2c40d35a53858136a82f39f39a3537"`
[INFO] [stderr]    Compiling klt-sys v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `klt-sys v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/klt-sys-0178993f234d5bbc/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:rerun-if-changed=build/build.rs
[INFO] [stderr] cargo:rerun-if-changed=lib/klt
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'could not create klt build log: Read-only file system (os error 30)', build/build.rs:33:40
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55a2755a744b - 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:     0x55a2755a744b - 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:     0x55a2755a744b - std::sys_common::backtrace::_print::he3f49d2d13a51ff1
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55a2755a744b - std::sys_common::backtrace::print::h46c2f3b13519e9bf
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55a2755a744b - std::panicking::default_hook::{{closure}}::h6694acddafc67583
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55a2755a7127 - std::panicking::default_hook::hb4761d2feeb6d93c
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55a2755a7b10 - std::panicking::rust_panic_with_hook::h7a5f9620b0a832bc
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55a2755a7692 - std::panicking::continue_panic_fmt::h76588b16c9674f9c
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x55a2755a75df - std::panicking::begin_panic_fmt::h5cc9fd38dd5f7178
[INFO] [stderr]                                at src/libstd/panicking.rs:339
[INFO] [stderr]    9:     0x55a27559a26c - build_script_build::build_klt::{{closure}}::h06110917499a2db0
[INFO] [stderr]                                at build/build.rs:33
[INFO] [stderr]   10:     0x55a27559c64c - core::result::Result<T,E>::unwrap_or_else::hcb8c7f0932527aa8
[INFO] [stderr]                                at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libcore/result.rs:818
[INFO] [stderr]   11:     0x55a275599e14 - build_script_build::build_klt::hefc17afac1044e4d
[INFO] [stderr]                                at build/build.rs:32
[INFO] [stderr]   12:     0x55a27559a3f9 - build_script_build::main::h1114cdb1c4e678de
[INFO] [stderr]                                at build/build.rs:52
[INFO] [stderr]   13:     0x55a27559bd70 - std::rt::lang_start::{{closure}}::h1c278b2e8c22775f
[INFO] [stderr]                                at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x55a2755a7563 - std::rt::lang_start_internal::{{closure}}::h32e298b4b9152770
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x55a2755a7563 - std::panicking::try::do_call::hc8de7cda8a6a61da
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x55a2755ad95a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   17:     0x55a2755a801d - std::panicking::try::h2d3ab36572ae54da
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x55a2755a801d - std::panic::catch_unwind::h4b587439b0094333
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x55a2755a801d - std::rt::lang_start_internal::h0772ca1bc29dd619
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x55a27559bd49 - std::rt::lang_start::h2bbaa9523a4b710c
[INFO] [stderr]                                at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x55a27559a42a - main
[INFO] [stderr]   22:     0x7f227e2fe2e1 - __libc_start_main
[INFO] [stderr]   23:     0x55a275593ada - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "51ea3739a907afad709d4b80e46cf1ef6f2c40d35a53858136a82f39f39a3537"`
[INFO] running `"docker" "rm" "-f" "51ea3739a907afad709d4b80e46cf1ef6f2c40d35a53858136a82f39f39a3537"`
[INFO] [stdout] 51ea3739a907afad709d4b80e46cf1ef6f2c40d35a53858136a82f39f39a3537