[INFO] updating cached repository https://github.com/Ruin0x11/rust-mapgen
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 744a9e008cf75006baac60cad786cc0cb3956a05
[INFO] testing Ruin0x11/rust-mapgen against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FRuin0x11%2Frust-mapgen" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ruin0x11/rust-mapgen on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Ruin0x11/rust-mapgen
[INFO] finished tweaking git repo https://github.com/Ruin0x11/rust-mapgen
[INFO] tweaked toml for git repo https://github.com/Ruin0x11/rust-mapgen written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Ruin0x11/rust-mapgen already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 5f0840f224cb5e61e99cecb5665f0938070a94712049a31ab9b8634d484f0058
[INFO] running `"docker" "start" "-a" "5f0840f224cb5e61e99cecb5665f0938070a94712049a31ab9b8634d484f0058"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling caca-sys v0.1.0 (https://github.com/Ruin0x11/caca-sys#9dc28723)
[INFO] [stderr]    Compiling lua52-sys v0.1.0
[INFO] [stderr]    Compiling errno v0.2.3
[INFO] [stderr] error: failed to run custom build command for `caca-sys v0.1.0 (https://github.com/Ruin0x11/caca-sys#9dc28723)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/caca-sys-f9ded7e756bf2de5/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] running: "git" "clone" "https://github.com/cacalabs/libcaca" ".libcaca"
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] fatal: could not create work tree dir '.libcaca': Read-only file system
[INFO] [stderr] thread 'main' panicked at 'assertion failed: cmd.stdout(Stdio::inherit()).stderr(Stdio::inherit()).status().unwrap().success()', /opt/rustwide/cargo-home/git/checkouts/caca-sys-0677b1fbbf110752/9dc2872/build.rs:115:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5594e5375bfb - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x5594e5375bfb - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5594e5375bfb - std::sys_common::backtrace::_print::hd3382a1f33c473da
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x5594e5375bfb - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x5594e5375bfb - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x5594e53758d6 - std::panicking::default_hook::h95a8f00337383d83
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x5594e53762bd - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x5594e53683b1 - std::panicking::begin_panic::hc7460115daa8c8dc
[INFO] [stderr]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:411
[INFO] [stderr]    8:     0x5594e5366d04 - build_script_build::run::h4973494efa78ef0f
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/caca-sys-0677b1fbbf110752/9dc2872/build.rs:115
[INFO] [stderr]    9:     0x5594e536639a - build_script_build::setup::h10030109f4b619d0
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/caca-sys-0677b1fbbf110752/9dc2872/build.rs:30
[INFO] [stderr]   10:     0x5594e5366085 - build_script_build::main::hdd0f36fb08a450ec
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/caca-sys-0677b1fbbf110752/9dc2872/build.rs:11
[INFO] [stderr]   11:     0x5594e5368220 - std::rt::lang_start::{{closure}}::h337d6adf5f6a9473
[INFO] [stderr]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x5594e5375d13 - std::rt::lang_start_internal::{{closure}}::h4e93c1949c7a1955
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   13:     0x5594e5375d13 - std::panicking::try::do_call::h9440ccd4dc467eaa
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   14:     0x5594e537bfda - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   15:     0x5594e53767cd - std::panicking::try::hc046e7ee42ee744f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   16:     0x5594e53767cd - std::panic::catch_unwind::h27dfc457c200aee0
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   17:     0x5594e53767cd - std::rt::lang_start_internal::hea1b49a567afe309
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   18:     0x5594e53681f9 - std::rt::lang_start::hafda325883ab3e19
[INFO] [stderr]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x5594e5366eca - main
[INFO] [stderr]   20:     0x7f00448dcb97 - __libc_start_main
[INFO] [stderr]   21:     0x5594e535c24a - _start
[INFO] [stderr]   22:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5f0840f224cb5e61e99cecb5665f0938070a94712049a31ab9b8634d484f0058"`
[INFO] running `"docker" "rm" "-f" "5f0840f224cb5e61e99cecb5665f0938070a94712049a31ab9b8634d484f0058"`
[INFO] [stdout] 5f0840f224cb5e61e99cecb5665f0938070a94712049a31ab9b8634d484f0058