[INFO] updating cached repository https://github.com/ruscur/swagladder
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] bcfc3f7a832337e805998e3d8911c3718b2d8b9e
[INFO] checking ruscur/swagladder against master#0d2817a439c2ad9fe343f6347eb6d90947893363 for pr-67531
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruscur%2Fswagladder" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruscur/swagladder on toolchain 0d2817a439c2ad9fe343f6347eb6d90947893363
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ruscur/swagladder
[INFO] finished tweaking git repo https://github.com/ruscur/swagladder
[INFO] tweaked toml for git repo https://github.com/ruscur/swagladder written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ruscur/swagladder already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "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" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 392e8ba271855cbf71679c4f3b0bd88cdc47c755370da7671ccd833fd2a4c8b1
[INFO] running `"docker" "start" "-a" "392e8ba271855cbf71679c4f3b0bd88cdc47c755370da7671ccd833fd2a4c8b1"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-normalization v0.1.3
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling openssl v0.9.6
[INFO] [stderr]     Checking siphasher v0.2.1
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]    Compiling redis v0.7.1
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking buf_redux v0.3.0
[INFO] [stderr]     Checking pest v0.3.3
[INFO] [stderr]     Checking quick-error v1.1.0
[INFO] [stderr]     Checking serde v0.7.15
[INFO] [stderr]     Checking route-recognizer v0.1.11
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking unicode-bidi v0.2.4
[INFO] [stderr]     Checking mime v0.2.2
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking r2d2 v0.7.1
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]    Compiling hyper v0.10.3
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]     Checking aho-corasick v0.6.1
[INFO] [stderr]     Checking thread_local v0.3.2
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking phf_shared v0.7.21
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]     Checking error-chain v0.7.2
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling mime_guess v1.8.1
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]     Checking idna v0.1.0
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]    Compiling openssl-sys v0.9.6
[INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mime_guess-f7b6d3163a62d086/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:1188:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x556af288f9b4 - backtrace::backtrace::libunwind::trace::h88f00a8d3895ea10
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x556af288f9b4 - backtrace::backtrace::trace_unsynchronized::h4ca1df924c7b5901
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x556af288f9b4 - std::sys_common::backtrace::_print_fmt::had352bd7b8affceb
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:84
[INFO] [stderr]    3:     0x556af288f9b4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h4404b586f9ddad5f
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x556af28a861c - core::fmt::write::h1ef5ea597ad3e25e
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1057
[INFO] [stderr]    5:     0x556af288e227 - std::io::Write::write_fmt::h5cbe88edfb9ad8f5
[INFO] [stderr]                                at src/libstd/io/mod.rs:1426
[INFO] [stderr]    6:     0x556af289199e - std::sys_common::backtrace::_print::h5d62b222153b0a57
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x556af289199e - std::sys_common::backtrace::print::hb580dac9bf29d123
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x556af289199e - std::panicking::default_hook::{{closure}}::h072d6b5ce4fd5ca1
[INFO] [stderr]                                at src/libstd/panicking.rs:193
[INFO] [stderr]    9:     0x556af2891691 - std::panicking::default_hook::hef4245424db77bd8
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x556af2891fcb - std::panicking::rust_panic_with_hook::hf59de39541dfae86
[INFO] [stderr]                                at src/libstd/panicking.rs:471
[INFO] [stderr]   11:     0x556af2891b7e - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:375
[INFO] [stderr]   12:     0x556af28a60de - core::panicking::panic_fmt::he351ae62b341d3b4
[INFO] [stderr]                                at src/libcore/panicking.rs:84
[INFO] [stderr]   13:     0x556af28a61d7 - core::result::unwrap_failed::hbf0cd8eb4478866b
[INFO] [stderr]                                at src/libcore/result.rs:1188
[INFO] [stderr]   14:     0x556af285a6e0 - core::result::Result<T,E>::unwrap::h71658591015b165c
[INFO] [stderr]                                at /rustc/0d2817a439c2ad9fe343f6347eb6d90947893363/src/libcore/result.rs:956
[INFO] [stderr]   15:     0x556af2856d75 - build_script_gen_mime_types::main::he84811685c9cac5f
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.1/src/gen_mime_types.rs:22
[INFO] [stderr]   16:     0x556af285ec70 - std::rt::lang_start::{{closure}}::he5fcaa00331cb6a2
[INFO] [stderr]                                at /rustc/0d2817a439c2ad9fe343f6347eb6d90947893363/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x556af2891a63 - std::rt::lang_start_internal::{{closure}}::he22b4dc136dfc0c4
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x556af2891a63 - std::panicking::try::do_call::heddd39178d6a1b25
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   19:     0x556af289383a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:78
[INFO] [stderr]   20:     0x556af2892460 - std::panicking::try::h683b5635b76ee763
[INFO] [stderr]                                at src/libstd/panicking.rs:270
[INFO] [stderr]   21:     0x556af2892460 - std::panic::catch_unwind::h9540defe988edc8c
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x556af2892460 - std::rt::lang_start_internal::hdc41c8ad82b2f2e3
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x556af285ec49 - std::rt::lang_start::h3c6a6a0254ed22a5
[INFO] [stderr]                                at /rustc/0d2817a439c2ad9fe343f6347eb6d90947893363/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x556af285830a - main
[INFO] [stderr]   25:     0x7fc1ee87cb97 - __libc_start_main
[INFO] [stderr]   26:     0x556af283acfa - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.0.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.1.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.10.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.11.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.12.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.13.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.14.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.15.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.2.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.3.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.4.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.5.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.6.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.7.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.8.rcgu.o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.build_script_build.blblv66v-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a" "/opt/rustwide/target/debug/build/openssl-sys-5c67ea3e981bd25a/build_script_build-5c67ea3e981bd25a.3um2fc8de2galymk.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libmetadeps-894d71f221a52e5a.rlib" "/opt/rustwide/target/debug/deps/libtoml-597f1ab630a683b4.rlib" "/opt/rustwide/target/debug/deps/libpkg_config-03dbb2919dea2cb0.rlib" "/opt/rustwide/target/debug/deps/liberror_chain-cb66e1cc091a4cc8.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-f91626d68e53cc09.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-f9548c6ca3322273.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-6a8d08b773dc5c55.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4c0b719a05f4f9fc.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-094300d4180bb5f4.rlib" "/opt/rustwide/target/debug/deps/libwinapi-34bca64e491d6cd8.rlib" "/opt/rustwide/target/debug/deps/libkernel32-0c4f2db8c7f1cc22.rlib" "/opt/rustwide/target/debug/deps/liblibc-8ea5c360d761b87f.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-36f83f6e94391714.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-94e72329613696c5.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-4ac27e830e79277d.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8af7ef6eb27dd1da.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-8f1b3b4edc982668.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-f59be705a188b189.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-060ad18d29d24013.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-a1c52d86752efa6e.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-1ae49e358bf27c28.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-8713669f38eaf156.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-5df495f54d7b3d26.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-44cef5c1b6e1fe53.rlib" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-774685081d4392b4.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/0d2817a439c2ad9fe343f6347eb6d90947893363/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f32e8241367f1984.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/rustwide/target/debug/deps/libbacktrace-f91626d68e53cc09.rlib(backtrace-f91626d68e53cc09.backtrace.1pxstlr8-cgu.13.rcgu.o): In function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libbacktrace-f91626d68e53cc09.rlib(backtrace-f91626d68e53cc09.backtrace.1pxstlr8-cgu.13.rcgu.o): In function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo'
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `openssl-sys`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "392e8ba271855cbf71679c4f3b0bd88cdc47c755370da7671ccd833fd2a4c8b1"`
[INFO] running `"docker" "rm" "-f" "392e8ba271855cbf71679c4f3b0bd88cdc47c755370da7671ccd833fd2a4c8b1"`
[INFO] [stdout] 392e8ba271855cbf71679c4f3b0bd88cdc47c755370da7671ccd833fd2a4c8b1