[INFO] updating cached repository https://github.com/SergeiMal/exchange [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] 6827f8c0586137e673dbc1e00a2e29ffcac1e94f [INFO] checking SergeiMal/exchange against master#fe6d05a8b32f5c66c427ca524dbcce5a7145f87e for pr-64327 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FSergeiMal%2Fexchange" "work/builds/worker-4/source"` [INFO] [stderr] Cloning into 'work/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SergeiMal/exchange 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/SergeiMal/exchange [INFO] finished tweaking git repo https://github.com/SergeiMal/exchange [INFO] tweaked toml for git repo https://github.com/SergeiMal/exchange written to work/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/SergeiMal/exchange 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/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] eb3c5a13a6752efc2ba6481387a8b3c9f0814a3b61cd7fd1602199abf855c2e2 [INFO] running `"docker" "start" "-a" "eb3c5a13a6752efc2ba6481387a8b3c9f0814a3b61cd7fd1602199abf855c2e2"` [INFO] [stderr] Compiling version_check v0.1.3 [INFO] [stderr] Compiling cc v1.0.3 [INFO] [stderr] Checking matches v0.1.6 [INFO] [stderr] Compiling siphasher v0.2.2 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling rayon-core v1.3.0 [INFO] [stderr] Compiling either v1.4.0 [INFO] [stderr] Compiling libc v0.2.33 [INFO] [stderr] Checking unicode-normalization v0.1.5 [INFO] [stderr] Checking byteorder v1.1.0 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking log v0.3.8 [INFO] [stderr] Checking safemem v0.2.0 [INFO] [stderr] Compiling cfg-if v0.1.2 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking httparse v1.2.3 [INFO] [stderr] Checking modifier v0.1.0 [INFO] [stderr] Compiling podio v0.1.5 [INFO] [stderr] Checking num-traits v0.1.40 [INFO] [stderr] Compiling unwrap v1.1.0 [INFO] [stderr] Compiling pkg-config v0.3.9 [INFO] [stderr] Compiling make-cmd v0.1.0 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Checking dtoa v0.2.2 [INFO] [stderr] Checking itoa v0.1.1 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking lazycell v0.5.1 [INFO] [stderr] Checking futures v0.1.17 [INFO] [stderr] Checking bitflags v0.7.0 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking scoped-tls v0.1.0 [INFO] [stderr] Checking buf_redux v0.3.0 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stderr] Checking strsim v0.6.0 [INFO] [stderr] Checking serde v1.0.21 [INFO] [stderr] Checking bitflags v0.9.1 [INFO] [stderr] Checking vec_map v0.8.0 [INFO] [stderr] Checking route-recognizer v0.1.12 [INFO] [stderr] Checking sequence_trie v0.2.1 [INFO] [stderr] Checking itoa v0.3.4 [INFO] [stderr] Checking headers v0.1.0 [INFO] [stderr] Checking hex v0.2.0 [INFO] [stderr] Checking bit-vec v0.4.4 [INFO] [stderr] Checking term v0.4.6 [INFO] [stderr] Checking unsafe-any v0.4.2 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Compiling coco v0.1.1 [INFO] [stderr] Checking mime v0.2.6 [INFO] [stderr] Checking base64 v0.6.0 [INFO] [stderr] Checking error v0.1.9 [INFO] [stderr] Checking colored v1.6.0 [INFO] [stderr] Compiling rand v0.3.18 [INFO] [stderr] Compiling num_cpus v1.7.0 [INFO] [stderr] Compiling time v0.1.38 [INFO] [stderr] Compiling xattr v0.1.11 [INFO] [stderr] Compiling filetime v0.1.14 [INFO] [stderr] Checking iovec v0.1.1 [INFO] [stderr] Checking memchr v1.0.2 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking atty v0.2.3 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking net2 v0.2.31 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Checking nix v0.8.1 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Checking num-integer v0.1.35 [INFO] [stderr] Checking typemap v0.3.3 [INFO] [stderr] Compiling bzip2-sys v0.1.6 [INFO] [stderr] Compiling miniz-sys v0.1.10 [INFO] [stderr] Checking idna v0.1.4 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking tokio-timer v0.1.2 [INFO] [stderr] Compiling tar v0.4.14 [INFO] [stderr] Checking conduit-mime-types v0.7.3 [INFO] [stderr] Checking num-complex v0.1.40 [INFO] [stderr] Compiling msdos_time v0.1.5 [INFO] [stderr] Checking bytes v0.4.5 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking cookie v0.10.1 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking mio v0.6.11 [INFO] [stderr] Checking clap v2.27.1 [INFO] [stderr] Checking plugin v0.2.6 [INFO] [stderr] Checking num-iter v0.1.34 [INFO] [stderr] Checking serde_json v0.8.6 [INFO] [stderr] Checking num-bigint v0.1.40 [INFO] [stderr] Checking tempdir v0.3.5 [INFO] [stderr] Checking regex v0.2.2 [INFO] [stderr] Checking tokio-io v0.1.4 [INFO] [stderr] Checking url v1.6.0 [INFO] [stderr] Compiling rayon v0.8.2 [INFO] [stderr] Checking ctrlc v3.0.3 [INFO] [stderr] Compiling serde_derive_internals v0.17.0 [INFO] [stderr] Compiling phf_shared v0.7.21 [INFO] [stderr] Checking num-rational v0.1.40 [INFO] [stderr] Checking tokio-core v0.1.10 [INFO] [stderr] Checking toml v0.4.5 [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.6.0/src/form_urlencoded.rs:261:40 [INFO] [stderr] | [INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 260 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 261 | fn finish(self) -> &'a mut ::Url { self.url } [INFO] [stderr] | ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait [INFO] [stderr] | | [INFO] [stderr] | returning this value requires that `*self.url` is borrowed for `'a` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Checking serde_json v1.0.6 [INFO] [stderr] Compiling flate2 v0.2.20 [INFO] [stderr] Checking exonum_profiler v0.1.2 [INFO] [stderr] Compiling bzip2 v0.3.2 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking phf v0.7.21 [INFO] [stderr] Checking num v0.1.40 [INFO] [stderr] Checking hyper v0.10.13 [INFO] [stderr] Checking env_logger v0.4.3 [INFO] [stderr] Checking tokio-retry v0.1.1 [INFO] [stderr] Compiling zip v0.2.6 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling gcc v0.3.54 [INFO] [stderr] Compiling mime_guess v1.8.2 [INFO] [stderr] Compiling serde_derive v1.0.21 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/mime_guess-467ec0060e3df01c/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: 0x55c49af25ca4 - 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: 0x55c49af25ca4 - 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: 0x55c49af25ca4 - std::sys_common::backtrace::_print_fmt::h33a2346af837f531 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 3: 0x55c49af25ca4 - ::fmt::h4f658ab4e42d366e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:61 [INFO] [stderr] 4: 0x55c49af3f20c - core::fmt::write::hd5bbaf3e01e48326 [INFO] [stderr] at src/libcore/fmt/mod.rs:1030 [INFO] [stderr] 5: 0x55c49af244b7 - std::io::Write::write_fmt::h6193b508653ddcc9 [INFO] [stderr] at src/libstd/io/mod.rs:1412 [INFO] [stderr] 6: 0x55c49af28025 - std::sys_common::backtrace::_print::he914b53d7a09a78d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:65 [INFO] [stderr] 7: 0x55c49af28025 - std::sys_common::backtrace::print::h92a8cb6723718f63 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:50 [INFO] [stderr] 8: 0x55c49af28025 - std::panicking::default_hook::{{closure}}::hf505e0d7e2ecd403 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 9: 0x55c49af27d16 - std::panicking::default_hook::hc6772d9600f23c72 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 10: 0x55c49af28675 - std::panicking::rust_panic_with_hook::h7372d52cdbd74b87 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 11: 0x55c49af28212 - std::panicking::continue_panic_fmt::h73b3f53425683dc6 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 12: 0x55c49af28106 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 13: 0x55c49af3cbda - core::panicking::panic_fmt::hbcbcea482a1f859e [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 14: 0x55c49af3ccd7 - core::result::unwrap_failed::h8065af330f1ff736 [INFO] [stderr] at src/libcore/result.rs:1165 [INFO] [stderr] 15: 0x55c49aeed8a0 - core::result::Result::unwrap::h441fd8f9dc1d0216 [INFO] [stderr] at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libcore/result.rs:933 [INFO] [stderr] 16: 0x55c49aeef475 - build_script_gen_mime_types::main::hb24e18f3e89e8d45 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.2/src/gen_mime_types.rs:22 [INFO] [stderr] 17: 0x55c49af00840 - std::rt::lang_start::{{closure}}::h24ed513f4b282dbc [INFO] [stderr] at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libstd/rt.rs:64 [INFO] [stderr] 18: 0x55c49af280f3 - std::rt::lang_start_internal::{{closure}}::h9d96e46706cace5b [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 19: 0x55c49af280f3 - std::panicking::try::do_call::h35d84c71f56bf844 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 20: 0x55c49af2a00a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 21: 0x55c49af28b6d - std::panicking::try::h2c16ac107e4a3736 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 22: 0x55c49af28b6d - std::panic::catch_unwind::h61680e437015f378 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 23: 0x55c49af28b6d - std::rt::lang_start_internal::h9e089243f326ffce [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 24: 0x55c49af00819 - std::rt::lang_start::h2566af499853bd68 [INFO] [stderr] at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libstd/rt.rs:64 [INFO] [stderr] 25: 0x55c49aef09fa - main [INFO] [stderr] 26: 0x7f99ae8d4b97 - __libc_start_main [INFO] [stderr] 27: 0x55c49aec5c1a - _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" "eb3c5a13a6752efc2ba6481387a8b3c9f0814a3b61cd7fd1602199abf855c2e2"` [INFO] running `"docker" "rm" "-f" "eb3c5a13a6752efc2ba6481387a8b3c9f0814a3b61cd7fd1602199abf855c2e2"` [INFO] [stdout] eb3c5a13a6752efc2ba6481387a8b3c9f0814a3b61cd7fd1602199abf855c2e2