[INFO] crate klt-sys 0.1.0 is already in cache
[INFO] extracting crate klt-sys 0.1.0 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/klt-sys/0.1.0
[INFO] extracting crate klt-sys 0.1.0 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/klt-sys/0.1.0
[INFO] validating manifest of klt-sys-0.1.0 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of klt-sys-0.1.0 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-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-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/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-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/klt-sys/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking klt-sys-0.1.0 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-3/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8af35c07367229aa1fc7331c69325bd147730bed2ae137d79f537b2a67282f78
[INFO] running `"docker" "start" "-a" "8af35c07367229aa1fc7331c69325bd147730bed2ae137d79f537b2a67282f78"`
[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-30c1c2f3951333c6/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:     0x5644bd51440b - backtrace::backtrace::libunwind::trace::h0c70a293f076b04d
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x5644bd51440b - backtrace::backtrace::trace_unsynchronized::h1bc693e29cfaa7b4
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5644bd51440b - std::sys_common::backtrace::_print::h8e9bb00be68d4090
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x5644bd51440b - std::sys_common::backtrace::print::h706192507dd9d34d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x5644bd51440b - std::panicking::default_hook::{{closure}}::he2b558091ea21dea
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    5:     0x5644bd5140e7 - std::panicking::default_hook::hfb9d48d2b8aaf0f5
[INFO] [stderr]                                at src/libstd/panicking.rs:212
[INFO] [stderr]    6:     0x5644bd514ad0 - std::panicking::rust_panic_with_hook::h56bb6d26ac5aac90
[INFO] [stderr]                                at src/libstd/panicking.rs:475
[INFO] [stderr]    7:     0x5644bd514652 - std::panicking::continue_panic_fmt::h360cf8419afe0564
[INFO] [stderr]                                at src/libstd/panicking.rs:382
[INFO] [stderr]    8:     0x5644bd51459f - std::panicking::begin_panic_fmt::hd47e0d3838ca406c
[INFO] [stderr]                                at src/libstd/panicking.rs:337
[INFO] [stderr]    9:     0x5644bd506f3c - build_script_build::build_klt::{{closure}}::h4ec77a12f375a39f
[INFO] [stderr]                                at build/build.rs:33
[INFO] [stderr]   10:     0x5644bd5094dc - core::result::Result<T,E>::unwrap_or_else::h7344b3599f213295
[INFO] [stderr]                                at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libcore/result.rs:766
[INFO] [stderr]   11:     0x5644bd506ae4 - build_script_build::build_klt::h770cf8f4065f8d64
[INFO] [stderr]                                at build/build.rs:32
[INFO] [stderr]   12:     0x5644bd5070c9 - build_script_build::main::h52b0d77effc07e25
[INFO] [stderr]                                at build/build.rs:52
[INFO] [stderr]   13:     0x5644bd508a40 - std::rt::lang_start::{{closure}}::h6be2d447cf5c8c13
[INFO] [stderr]                                at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x5644bd514523 - std::rt::lang_start_internal::{{closure}}::h868ef2b3c3a15fff
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x5644bd514523 - std::panicking::try::do_call::h4528fe5c5ea34ef8
[INFO] [stderr]                                at src/libstd/panicking.rs:294
[INFO] [stderr]   16:     0x5644bd51a91a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   17:     0x5644bd514fdd - std::panicking::try::ha87d5378c5dcb863
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   18:     0x5644bd514fdd - std::panic::catch_unwind::hf01b748a30fdd5ec
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   19:     0x5644bd514fdd - std::rt::lang_start_internal::h9518341cf2ad1d33
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x5644bd508a19 - std::rt::lang_start::hb561b05112cdc786
[INFO] [stderr]                                at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x5644bd5070fa - main
[INFO] [stderr]   22:     0x7f0e17b692e1 - __libc_start_main
[INFO] [stderr]   23:     0x5644bd500ada - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "8af35c07367229aa1fc7331c69325bd147730bed2ae137d79f537b2a67282f78"`
[INFO] running `"docker" "rm" "-f" "8af35c07367229aa1fc7331c69325bd147730bed2ae137d79f537b2a67282f78"`
[INFO] [stdout] 8af35c07367229aa1fc7331c69325bd147730bed2ae137d79f537b2a67282f78