[INFO] cloning repository mmueller/advent2016
[INFO] running `"git" "clone" "--bare" "git://github.com/mmueller/advent2016.git" "work/cache/sources/gh/mmueller/advent2016"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/mmueller/advent2016'...
[INFO] running `"git" "clone" "work/cache/sources/gh/mmueller/advent2016" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/mmueller/advent2016"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/mmueller/advent2016'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mmueller/advent2016" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/mmueller/advent2016"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/mmueller/advent2016'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ae140beb832ff98fd285c54d7100d9835c2399a1
[INFO] sha for GitHub repo mmueller/advent2016: ae140beb832ff98fd285c54d7100d9835c2399a1
[INFO] validating manifest of mmueller/advent2016 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 mmueller/advent2016 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 mmueller/advent2016
[INFO] finished frobbing mmueller/advent2016
[INFO] frobbed toml for mmueller/advent2016 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/mmueller/advent2016/Cargo.toml
[INFO] started frobbing mmueller/advent2016
[INFO] finished frobbing mmueller/advent2016
[INFO] frobbed toml for mmueller/advent2016 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/mmueller/advent2016/Cargo.toml
[INFO] crate mmueller/advent2016 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 v0.7.1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mmueller/advent2016 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/mmueller/advent2016:/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] ea19834c7f344f8ea8ebe52f5337c50e56178de24109919a42b81c31627f1542
[INFO] running `"docker" "start" "-a" "ea19834c7f344f8ea8ebe52f5337c50e56178de24109919a42b81c31627f1542"`
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling error-chain v0.7.1
[INFO] [stderr]    Compiling advent2016 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning[E0503]: cannot use `day` because it was mutably borrowed
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     parser.refer(&mut day)
[INFO] [stderr]    |                  -------- borrow of `day` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 34 |         Some(1) => day1::day1(),
[INFO] [stderr]    |         ^^^^^^^ use of borrowed `day`
[INFO] [stderr] ...
[INFO] [stderr] 62 | }
[INFO] [stderr]    | - borrow might be used here, when `parser` is dropped and runs the destructor for type `argparse::ArgumentParser<'_>`
[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] warning[E0503]: cannot use `day.0` because it was mutably borrowed
[INFO] [stderr]   --> src/main.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 29 |     parser.refer(&mut day)
[INFO] [stderr]    |                  -------- borrow of `day` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 34 |         Some(1) => day1::day1(),
[INFO] [stderr]    |              ^ use of borrowed `day`
[INFO] [stderr] ...
[INFO] [stderr] 62 | }
[INFO] [stderr]    | - borrow might be used here, when `parser` is dropped and runs the destructor for type `argparse::ArgumentParser<'_>`
[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] 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/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.advent2016.dl9q6fwn-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3" "/opt/crater/target/debug/deps/advent2016-699abd02b6e298a3.3w8ii4t7uzhgdif8.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/rust-crypto-5846ffbf97415162/out" "-L" "/opt/crater/rustup-home/toolchains/e212b7d492c96d3837691ba29d32d5f468933fb8-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libregex-ad478a65786e0913.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-6cd60a6acc67606e.rlib" "/opt/crater/target/debug/deps/libregex_syntax-d7951ba199fca90d.rlib" "/opt/crater/target/debug/deps/libthread_local-1890c2f8233dcf97.rlib" "/opt/crater/target/debug/deps/libthread_id-a81ff686f8761acb.rlib" "/opt/crater/target/debug/deps/libaho_corasick-12e4bae5ee144d18.rlib" "/opt/crater/target/debug/deps/libmemchr-88973570b9a2bfdd.rlib" "/opt/crater/target/debug/deps/liblazy_static-3d86a67d5a6081ae.rlib" "/opt/crater/target/debug/deps/liberror_chain-bae0ef1539c9ae93.rlib" "/opt/crater/target/debug/deps/libbacktrace-5d58e9f3b9e7d6c5.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-7040523231145e8f.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/libcrypto-e70f382422cdd439.rlib" "/opt/crater/target/debug/deps/libtime-6e7c8ab574960f91.rlib" "/opt/crater/target/debug/deps/librustc_serialize-2efcd210b2748a70.rlib" "/opt/crater/target/debug/deps/librand-157289fec418840e.rlib" "/opt/crater/target/debug/deps/liblibc-444545660d91f943.rlib" "/opt/crater/target/debug/deps/libargparse-d2b1c31e2eb30012.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-5d58e9f3b9e7d6c5.rlib(backtrace-5d58e9f3b9e7d6c5.backtrace.d229y74w-cgu.5.rcgu.o): In function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stderr]           /opt/crater/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/crater/target/debug/deps/libbacktrace-5d58e9f3b9e7d6c5.rlib(backtrace-5d58e9f3b9e7d6c5.backtrace.d229y74w-cgu.5.rcgu.o): In function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stderr]           /opt/crater/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] For more information about this error, try `rustc --explain E0503`.
[INFO] [stderr] error: Could not compile `advent2016`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ea19834c7f344f8ea8ebe52f5337c50e56178de24109919a42b81c31627f1542"`
[INFO] running `"docker" "rm" "-f" "ea19834c7f344f8ea8ebe52f5337c50e56178de24109919a42b81c31627f1542"`
[INFO] [stdout] ea19834c7f344f8ea8ebe52f5337c50e56178de24109919a42b81c31627f1542