[INFO] fetching crate mdbook-epub 0.1.0... [INFO] extracting crate mdbook-epub 0.1.0 into work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/mdbook-epub/0.1.0 [INFO] extracting crate mdbook-epub 0.1.0 into work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/mdbook-epub/0.1.0 [INFO] validating manifest of mdbook-epub-0.1.0 on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of mdbook-epub-0.1.0 on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing mdbook-epub-0.1.0 [INFO] finished frobbing mdbook-epub-0.1.0 [INFO] frobbed toml for mdbook-epub-0.1.0 written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/mdbook-epub/0.1.0/Cargo.toml [INFO] started frobbing mdbook-epub-0.1.0 [INFO] finished frobbing mdbook-epub-0.1.0 [INFO] frobbed toml for mdbook-epub-0.1.0 written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/mdbook-epub/0.1.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded epub-builder v0.3.0 [INFO] [stderr] Downloaded epub v1.2.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking mdbook-epub-0.1.0 against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-1/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/mdbook-epub/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 8b8103cae62f5049e69ea2a1aac1c4b4b30bb44e8216c1444938ba8aaef16992 [INFO] running `"docker" "start" "-a" "8b8103cae62f5049e69ea2a1aac1c4b4b30bb44e8216c1444938ba8aaef16992"` [INFO] [stderr] Compiling hex v0.2.0 [INFO] [stderr] Compiling crossbeam v0.3.2 [INFO] [stderr] Compiling memchr v1.0.2 [INFO] [stderr] Compiling filetime v0.1.15 [INFO] [stderr] Compiling jobserver v0.1.12 [INFO] [stderr] Compiling semver v0.8.0 [INFO] [stderr] Compiling globset v0.2.1 [INFO] [stderr] Checking handlebars v0.32.4 [INFO] [stderr] Compiling curl-sys v0.4.16 [INFO] [stderr] Compiling libssh2-sys v0.2.11 [INFO] [stderr] Compiling openssl v0.10.19 [INFO] [stderr] Compiling docopt v0.8.3 [INFO] [stderr] Checking elasticlunr-rs v2.3.4 [INFO] [stderr] Checking toml-query v0.6.0 [INFO] [stderr] Checking zip v0.2.8 [INFO] [stderr] Compiling markup5ever v0.7.5 [INFO] [stderr] Compiling curl v0.4.19 [INFO] [stderr] Compiling libgit2-sys v0.6.19 [INFO] [stderr] Compiling ignore v0.2.2 [INFO] [stderr] Checking epub v1.2.0 [INFO] [stderr] Checking string_cache v0.7.3 [INFO] [stderr] Checking epub-builder v0.3.0 [INFO] [stderr] Compiling git2 v0.6.11 [INFO] [stderr] Compiling crates-io v0.13.0 [INFO] [stderr] Compiling crypto-hash v0.3.3 [INFO] [stderr] Checking html5ever v0.22.5 [INFO] [stderr] Compiling git2-curl v0.7.0 [INFO] [stderr] Compiling cargo v0.24.0 [INFO] [stderr] Checking ammonia v1.2.0 [INFO] [stderr] Checking mdbook v0.1.8 [INFO] [stderr] Compiling mdbook-epub v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error: failed to run custom build command for `mdbook-epub v0.1.0 (/opt/crater/workdir)` [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mdbook-epub-1b28a9aa3d294278/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: CargoError(Msg("failed to write /opt/crater/workdir/Cargo.lock"), State { next_error: Some(CargoError(Msg("failed to open: /opt/crater/workdir/Cargo.lock"), State { next_error: Some(Os { code: 30, kind: Other, message: "Read-only file system" }), backtrace: Some(stack backtrace: [INFO] [stderr] 0: error_chain::make_backtrace::heb2364a72ed7336f (0x55cba2e72578) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.11.0/src/lib.rs:616 [INFO] [stderr] 1: core::ops::function::FnOnce::call_once::hbfb00016d252ee3c (0x55cba253f169) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libcore/ops/function.rs:231 [INFO] [stderr] 2: >::or_else::h0a5322691fbcb2a8 (0x55cba275a7c4) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libcore/option.rs:714 [INFO] [stderr] 3: error_chain::State::new::h0d548d2856b6fe03 (0x55cba27d3b51) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.11.0/src/lib.rs:724 [INFO] [stderr] 4: as cargo::util::errors::CargoResultExt>::chain_err::{{closure}}::h7f5a176f3a7e5afe (0x55cba2737059) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/<::error_chain::error_chain::impl_error_chain_processed macros>:143 [INFO] [stderr] 5: >::map_err::hcf9e450814841405 (0x55cba25bebd5) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libcore/result.rs:520 [INFO] [stderr] 6: as cargo::util::errors::CargoResultExt>::chain_err::hdd9861d4e2aa078b (0x55cba25cdec4) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/<::error_chain::error_chain::impl_error_chain_processed macros>:141 [INFO] [stderr] 7: cargo::util::flock::Filesystem::open::ha32cf5f9d713980a (0x55cba27310d0) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/util/flock.rs:208 [INFO] [stderr] 8: cargo::util::flock::Filesystem::open_rw::h3dec92188108c9d7 (0x55cba27309ee) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/util/flock.rs:168 [INFO] [stderr] 9: cargo::ops::lockfile::write_pkg_lockfile::h54c3a69ebf602d96 (0x55cba27f6534) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/ops/lockfile.rs:84 [INFO] [stderr] 10: cargo::ops::resolve::resolve_with_registry::h8705ea5a0f84c682 (0x55cba26571e4) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/ops/resolve.rs:97 [INFO] [stderr] 11: cargo::ops::resolve::resolve_ws::h55fa706c3c164d57 (0x55cba2656c12) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/ops/resolve.rs:18 [INFO] [stderr] 12: build_script_build::find_dependency_version::h7bd2b5eb3c9224c9 (0x55cba23d72b9) [INFO] [stderr] at /opt/crater/workdir/build.rs:35 [INFO] [stderr] 13: build_script_build::main::h41f705b4545cdd1a (0x55cba23d682b) [INFO] [stderr] at /opt/crater/workdir/build.rs:18 [INFO] [stderr] 14: std::rt::lang_start::{{closure}}::h9553f5e116a0d87f (0x55cba23d346f) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libstd/rt.rs:64 [INFO] [stderr] 15: {{closure}} (0x55cba2eaebf2) [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] do_call [INFO] [stderr] at src/libstd/panicking.rs:293 [INFO] [stderr] 16: __rust_maybe_catch_panic (0x55cba2eb7719) [INFO] [stderr] at src/libpanic_unwind/lib.rs:87 [INFO] [stderr] 17: try (0x55cba2eaf7bc) [INFO] [stderr] at src/libstd/panicking.rs:272 [INFO] [stderr] catch_unwind [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] lang_start_internal [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 18: std::rt::lang_start::h87844613f078b862 (0x55cba23d3448) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libstd/rt.rs:64 [INFO] [stderr] 19: main (0x55cba23d74a9) [INFO] [stderr] 20: __libc_start_main (0x7f59c6fcd2e0) [INFO] [stderr] 21: _start (0x55cba23d3019) [INFO] [stderr] 22: (0x0)) })), backtrace: Some(stack backtrace: [INFO] [stderr] 0: error_chain::make_backtrace::heb2364a72ed7336f (0x55cba2e72578) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.11.0/src/lib.rs:616 [INFO] [stderr] 1: core::ops::function::FnOnce::call_once::hbfb00016d252ee3c (0x55cba253f169) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libcore/ops/function.rs:231 [INFO] [stderr] 2: >::or_else::h0a5322691fbcb2a8 (0x55cba275a7c4) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libcore/option.rs:714 [INFO] [stderr] 3: error_chain::State::new::h0d548d2856b6fe03 (0x55cba27d3b51) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.11.0/src/lib.rs:724 [INFO] [stderr] 4: as cargo::util::errors::CargoResultExt>::chain_err::{{closure}}::h7f5a176f3a7e5afe (0x55cba2737059) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/<::error_chain::error_chain::impl_error_chain_processed macros>:143 [INFO] [stderr] 5: >::map_err::hcf9e450814841405 (0x55cba25bebd5) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libcore/result.rs:520 [INFO] [stderr] 6: as cargo::util::errors::CargoResultExt>::chain_err::hdd9861d4e2aa078b (0x55cba25cdec4) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/<::error_chain::error_chain::impl_error_chain_processed macros>:141 [INFO] [stderr] 7: cargo::util::flock::Filesystem::open::ha32cf5f9d713980a (0x55cba27310d0) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/util/flock.rs:208 [INFO] [stderr] 8: cargo::util::flock::Filesystem::open_rw::h3dec92188108c9d7 (0x55cba27309ee) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/util/flock.rs:168 [INFO] [stderr] 9: cargo::ops::lockfile::write_pkg_lockfile::h54c3a69ebf602d96 (0x55cba27f6534) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/ops/lockfile.rs:84 [INFO] [stderr] 10: cargo::ops::resolve::resolve_with_registry::h8705ea5a0f84c682 (0x55cba26571e4) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/ops/resolve.rs:97 [INFO] [stderr] 11: cargo::ops::resolve::resolve_ws::h55fa706c3c164d57 (0x55cba2656c12) [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cargo-0.24.0/src/cargo/ops/resolve.rs:18 [INFO] [stderr] 12: build_script_build::find_dependency_version::h7bd2b5eb3c9224c9 (0x55cba23d72b9) [INFO] [stderr] at /opt/crater/workdir/build.rs:35 [INFO] [stderr] 13: build_script_build::main::h41f705b4545cdd1a (0x55cba23d682b) [INFO] [stderr] at /opt/crater/workdir/build.rs:18 [INFO] [stderr] 14: std::rt::lang_start::{{closure}}::h9553f5e116a0d87f (0x55cba23d346f) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libstd/rt.rs:64 [INFO] [stderr] 15: {{closure}} (0x55cba2eaebf2) [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] do_call [INFO] [stderr] at src/libstd/panicking.rs:293 [INFO] [stderr] 16: __rust_maybe_catch_panic (0x55cba2eb7719) [INFO] [stderr] at src/libpanic_unwind/lib.rs:87 [INFO] [stderr] 17: try (0x55cba2eaf7bc) [INFO] [stderr] at src/libstd/panicking.rs:272 [INFO] [stderr] catch_unwind [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] lang_start_internal [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 18: std::rt::lang_start::h87844613f078b862 (0x55cba23d3448) [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libstd/rt.rs:64 [INFO] [stderr] 19: main (0x55cba23d74a9) [INFO] [stderr] 20: __libc_start_main (0x7f59c6fcd2e0) [INFO] [stderr] 21: _start (0x55cba23d3019) [INFO] [stderr] 22: (0x0)) })', src/libcore/result.rs:997:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55cba2eafee3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hfe14902d5dd41bf8 [INFO] [stderr] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stderr] 1: 0x55cba2eabd5b - std::sys_common::backtrace::_print::hc2555116e7c8c874 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stderr] 2: 0x55cba2eaeae6 - std::panicking::default_hook::{{closure}}::h9fb1ec65fd293048 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] at src/libstd/panicking.rs:197 [INFO] [stderr] 3: 0x55cba2eae879 - std::panicking::default_hook::h7b4e2a7e1c2a63a7 [INFO] [stderr] at src/libstd/panicking.rs:211 [INFO] [stderr] 4: 0x55cba2eaf1ef - std::panicking::rust_panic_with_hook::h9b8bb6f9ced4f458 [INFO] [stderr] at src/libstd/panicking.rs:474 [INFO] [stderr] 5: 0x55cba2eaed71 - std::panicking::continue_panic_fmt::hf2c20b0944521e45 [INFO] [stderr] at src/libstd/panicking.rs:381 [INFO] [stderr] 6: 0x55cba2eaec55 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:308 [INFO] [stderr] 7: 0x55cba2ecb51c - core::panicking::panic_fmt::h2a3f1200cf967cbb [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 8: 0x55cba23d3854 - core::result::unwrap_failed::h0f7c2b588a816f6d [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libcore/macros.rs:16 [INFO] [stderr] 9: 0x55cba23d358d - >::unwrap::h0b39162d06e8d915 [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libcore/result.rs:798 [INFO] [stderr] 10: 0x55cba23d683c - build_script_build::main::h41f705b4545cdd1a [INFO] [stderr] at /opt/crater/workdir/build.rs:18 [INFO] [stderr] 11: 0x55cba23d346f - std::rt::lang_start::{{closure}}::h9553f5e116a0d87f [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libstd/rt.rs:64 [INFO] [stderr] 12: 0x55cba2eaebf2 - std::panicking::try::do_call::h213677faaf56adb7 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] at src/libstd/panicking.rs:293 [INFO] [stderr] 13: 0x55cba2eb7719 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:87 [INFO] [stderr] 14: 0x55cba2eaf7bc - std::rt::lang_start_internal::h41a26d62d9ff596f [INFO] [stderr] at src/libstd/panicking.rs:272 [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 15: 0x55cba23d3448 - std::rt::lang_start::h87844613f078b862 [INFO] [stderr] at /rustc/c0086b9e8972fef9fd4af24bae20d45021ed06c6/src/libstd/rt.rs:64 [INFO] [stderr] 16: 0x55cba23d74a9 - main [INFO] [stderr] 17: 0x7f59c6fcd2e0 - __libc_start_main [INFO] [stderr] 18: 0x55cba23d3019 - _start [INFO] [stderr] 19: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "8b8103cae62f5049e69ea2a1aac1c4b4b30bb44e8216c1444938ba8aaef16992"` [INFO] running `"docker" "rm" "-f" "8b8103cae62f5049e69ea2a1aac1c4b4b30bb44e8216c1444938ba8aaef16992"` [INFO] [stdout] 8b8103cae62f5049e69ea2a1aac1c4b4b30bb44e8216c1444938ba8aaef16992