[INFO] cloning repository jkcclemens/path
[INFO] running `"git" "clone" "--bare" "git://github.com/jkcclemens/path.git" "work/cache/sources/gh/jkcclemens/path"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/jkcclemens/path'...
[INFO] running `"git" "clone" "work/cache/sources/gh/jkcclemens/path" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/jkcclemens/path"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/jkcclemens/path'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jkcclemens/path" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/jkcclemens/path"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/jkcclemens/path'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 22a1ec38b04636bcabe78fe182a3bb1ae8fb77f7
[INFO] sha for GitHub repo jkcclemens/path: 22a1ec38b04636bcabe78fe182a3bb1ae8fb77f7
[INFO] validating manifest of jkcclemens/path on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jkcclemens/path on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jkcclemens/path
[INFO] finished frobbing jkcclemens/path
[INFO] frobbed toml for jkcclemens/path written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/jkcclemens/path/Cargo.toml
[INFO] started frobbing jkcclemens/path
[INFO] finished frobbing jkcclemens/path
[INFO] frobbed toml for jkcclemens/path written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/jkcclemens/path/Cargo.toml
[INFO] crate jkcclemens/path already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-chain v0.2.2
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jkcclemens/path against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/jkcclemens/path:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 4243b045cc7855f1b9ff6b8a26784dd444c44e358bd6025780dd1f0acc3bbc29
[INFO] running `"docker" "start" "-a" "4243b045cc7855f1b9ff6b8a26784dd444c44e358bd6025780dd1f0acc3bbc29"`
[INFO] [stderr]    Compiling syn v0.10.5
[INFO] [stderr]    Compiling number_prefix v0.2.7
[INFO] [stderr]    Compiling clap v2.19.2
[INFO] [stderr]    Compiling error-chain v0.2.2
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]    Compiling serde_codegen v0.8.21
[INFO] [stderr]    Compiling serde_derive v0.8.21
[INFO] [stderr]    Compiling path v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/path_sort/mod.rs:113:23
[INFO] [stderr]     |
[INFO] [stderr] 113 |           if let Some(mut x) = def {
[INFO] [stderr]     |                       ----^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(proc_macro)]
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[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/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/path-ce71690390e0940e.path.22vc28cx-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/path-ce71690390e0940e" "/opt/crater/target/debug/deps/path-ce71690390e0940e.3ioqb3cn3ilht30t.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libseparator-84db1d5620688e0a.rlib" "/opt/crater/target/debug/deps/libnumber_prefix-144ef1100a5e0661.rlib" "/opt/crater/target/debug/deps/liberror_chain-0937313130906ae5.rlib" "/opt/crater/target/debug/deps/libbacktrace-ecbb189c8df006d2.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-78a1d138a0debd0e.rlib" "/opt/crater/target/debug/deps/librustc_demangle-4c4eb1802d306f41.rlib" "/opt/crater/target/debug/deps/libcfg_if-4ee1bfc7bbb3c4e3.rlib" "/opt/crater/target/debug/deps/libdbghelp-8bca857c6ff44786.rlib" "/opt/crater/target/debug/deps/libwinapi-0d487fc2d3cbe596.rlib" "/opt/crater/target/debug/deps/libkernel32-c43354b950774659.rlib" "/opt/crater/target/debug/deps/libserde_json-612a49c5f3ef5661.rlib" "/opt/crater/target/debug/deps/libdtoa-b8844c2b7f23868f.rlib" "/opt/crater/target/debug/deps/libitoa-f4a4282d480435d5.rlib" "/opt/crater/target/debug/deps/libserde-9fa8eeb2888375c4.rlib" "/opt/crater/target/debug/deps/libnum_traits-148926767d5eeac1.rlib" "/opt/crater/target/debug/deps/libclap-efe3b1f8d454b286.rlib" "/opt/crater/target/debug/deps/libunicode_segmentation-9c2764e4f892a35f.rlib" "/opt/crater/target/debug/deps/libterm_size-612f5501a9b6edd7.rlib" "/opt/crater/target/debug/deps/libvec_map-99537674404a0dfd.rlib" "/opt/crater/target/debug/deps/libbitflags-cb0300d7373a08e3.rlib" "/opt/crater/target/debug/deps/libunicode_width-f4d06431c820fd7e.rlib" "/opt/crater/target/debug/deps/liblibc-444545660d91f943.rlib" "/opt/crater/target/debug/deps/libansi_term-3be1d03cfb22f3ee.rlib" "/opt/crater/target/debug/deps/libstrsim-34b6a65fedd34aa1.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-196d0eff8e603c0a.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-1c597f5941591e04.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-a20af2d3380aa511.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-f989f9e071798586.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-52fb60b932b5ef90.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-90a3fdc679697856.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-06d10270cfa51644.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8abb913fca550f79.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-31fd2baab47b156c.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0862cc65189bd4af.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-8010b8629f5aa3e5.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-2d032fe7d4e1e163.rlib" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-622fdce0dc084cba.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-a17fdd0a687135a8.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/libbacktrace-ecbb189c8df006d2.rlib(backtrace-ecbb189c8df006d2.backtrace.sqs19l2k-cgu.15.rcgu.o): In function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:150: undefined reference to `backtrace_create_state'
[INFO] [stderr]           /opt/crater/target/debug/deps/libbacktrace-ecbb189c8df006d2.rlib(backtrace-ecbb189c8df006d2.backtrace.sqs19l2k-cgu.15.rcgu.o): In function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:167: undefined reference to `backtrace_pcinfo'
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:171: 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 `path`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4243b045cc7855f1b9ff6b8a26784dd444c44e358bd6025780dd1f0acc3bbc29"`
[INFO] running `"docker" "rm" "-f" "4243b045cc7855f1b9ff6b8a26784dd444c44e358bd6025780dd1f0acc3bbc29"`
[INFO] [stdout] 4243b045cc7855f1b9ff6b8a26784dd444c44e358bd6025780dd1f0acc3bbc29