[INFO] updating cached repository https://github.com/Giels/topic [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/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] 403ff1f88beb708f74965f40fd4cbc9184081bbc [INFO] checking Giels/topic against master#fe6d05a8b32f5c66c427ca524dbcce5a7145f87e for pr-64327 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FGiels%2Ftopic" "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/Giels/topic on toolchain fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/Giels/topic [INFO] finished tweaking git repo https://github.com/Giels/topic [INFO] tweaked toml for git repo https://github.com/Giels/topic written to work/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/Giels/topic already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/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=forbid" "-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" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] b17db997a005a76cd949a0980b1c80b197c02f825bc129462f91fb647c08abb5 [INFO] running `"docker" "start" "-a" "b17db997a005a76cd949a0980b1c80b197c02f825bc129462f91fb647c08abb5"` [INFO] [stderr] Checking fallible-iterator v0.1.4 [INFO] [stderr] Checking memchr v1.0.2 [INFO] [stderr] Checking num-complex v0.1.42 [INFO] [stderr] Compiling hoedown v6.0.0 [INFO] [stderr] Checking stringprep v0.1.2 [INFO] [stderr] Checking num-bigint v0.1.43 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking twoway v0.1.7 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Checking r2d2 v0.8.2 [INFO] [stderr] Checking generic-array v0.9.0 [INFO] [stderr] Checking mio v0.6.13 [INFO] [stderr] Checking mustache v0.9.0 [INFO] [stderr] Checking tokio-io v0.1.5 [INFO] [stderr] Checking buf_redux v0.6.3 [INFO] [stderr] Checking crypto-mac v0.5.2 [INFO] [stderr] Checking digest v0.7.2 [INFO] [stderr] Checking regex v0.2.6 [INFO] [stderr] Checking sha2 v0.7.0 [INFO] [stderr] Checking hmac v0.5.0 [INFO] [stderr] Compiling mime_guess v1.8.3 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.3` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/mime_guess-7dccf35aef0169ae/build-script-gen_mime_types` (exit code: 101) [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:1165:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x563d5304c8d4 - backtrace::backtrace::libunwind::trace::h7b2a6b74301d37f0 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x563d5304c8d4 - backtrace::backtrace::trace_unsynchronized::h89a5cf99a9618766 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x563d5304c8d4 - std::sys_common::backtrace::_print_fmt::h33a2346af837f531 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 3: 0x563d5304c8d4 - ::fmt::h4f658ab4e42d366e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:61 [INFO] [stderr] 4: 0x563d53065e3c - core::fmt::write::hd5bbaf3e01e48326 [INFO] [stderr] at src/libcore/fmt/mod.rs:1030 [INFO] [stderr] 5: 0x563d5304b0e7 - std::io::Write::write_fmt::h6193b508653ddcc9 [INFO] [stderr] at src/libstd/io/mod.rs:1412 [INFO] [stderr] 6: 0x563d5304ec55 - std::sys_common::backtrace::_print::he914b53d7a09a78d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:65 [INFO] [stderr] 7: 0x563d5304ec55 - std::sys_common::backtrace::print::h92a8cb6723718f63 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:50 [INFO] [stderr] 8: 0x563d5304ec55 - std::panicking::default_hook::{{closure}}::hf505e0d7e2ecd403 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 9: 0x563d5304e946 - std::panicking::default_hook::hc6772d9600f23c72 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 10: 0x563d5304f2a5 - std::panicking::rust_panic_with_hook::h7372d52cdbd74b87 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 11: 0x563d5304ee42 - std::panicking::continue_panic_fmt::h73b3f53425683dc6 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 12: 0x563d5304ed36 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 13: 0x563d5306380a - core::panicking::panic_fmt::hbcbcea482a1f859e [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 14: 0x563d53063907 - core::result::unwrap_failed::h8065af330f1ff736 [INFO] [stderr] at src/libcore/result.rs:1165 [INFO] [stderr] 15: 0x563d530147d0 - core::result::Result::unwrap::hea52a7f89612cbbd [INFO] [stderr] at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libcore/result.rs:933 [INFO] [stderr] 16: 0x563d530163a5 - build_script_gen_mime_types::main::h308cc766876b6f61 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.3/src/gen_mime_types.rs:22 [INFO] [stderr] 17: 0x563d530276f0 - std::rt::lang_start::{{closure}}::h6bb67076009f8ea7 [INFO] [stderr] at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libstd/rt.rs:64 [INFO] [stderr] 18: 0x563d5304ed23 - std::rt::lang_start_internal::{{closure}}::h9d96e46706cace5b [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 19: 0x563d5304ed23 - std::panicking::try::do_call::h35d84c71f56bf844 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 20: 0x563d53050c3a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 21: 0x563d5304f79d - std::panicking::try::h2c16ac107e4a3736 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 22: 0x563d5304f79d - std::panic::catch_unwind::h61680e437015f378 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 23: 0x563d5304f79d - std::rt::lang_start_internal::h9e089243f326ffce [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 24: 0x563d530276c9 - std::rt::lang_start::hfe834359af107ee6 [INFO] [stderr] at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libstd/rt.rs:64 [INFO] [stderr] 25: 0x563d5301792a - main [INFO] [stderr] 26: 0x7f347d5c6b97 - __libc_start_main [INFO] [stderr] 27: 0x563d52fecb7a - _start [INFO] [stderr] 28: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "b17db997a005a76cd949a0980b1c80b197c02f825bc129462f91fb647c08abb5"` [INFO] running `"docker" "rm" "-f" "b17db997a005a76cd949a0980b1c80b197c02f825bc129462f91fb647c08abb5"` [INFO] [stdout] b17db997a005a76cd949a0980b1c80b197c02f825bc129462f91fb647c08abb5