[INFO] updating cached repository mmueller/advent2016 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mmueller/advent2016 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mmueller/advent2016" "work/ex/beta-1.38-1/sources/1.37.0/gh/mmueller/advent2016"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mmueller/advent2016'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mmueller/advent2016" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmueller/advent2016"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of mmueller/advent2016 on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing mmueller/advent2016 against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 84cb069c7ae7cf64b77e9283e9b7a9ee8d3b31a6deb7883d356e4a8e1ab1d6c4 [INFO] running `"docker" "start" "-a" "84cb069c7ae7cf64b77e9283e9b7a9ee8d3b31a6deb7883d356e4a8e1ab1d6c4"` [INFO] [stderr] Compiling backtrace v0.3.0 [INFO] [stderr] Compiling argparse v0.2.1 [INFO] [stderr] Compiling backtrace-sys v0.1.5 [INFO] [stderr] Compiling rust-crypto v0.2.36 [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/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.advent2016.cfpyu4ba-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a" "/opt/crater/target/debug/deps/advent2016-b7b8058c1ac3450a.15fp0rbl3yx3252y.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-5c5b8d51582260bf/out" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libregex-2c611d7fe31cb8ee.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-7e19cf98379531b4.rlib" "/opt/crater/target/debug/deps/libregex_syntax-55ee28c5615612af.rlib" "/opt/crater/target/debug/deps/libthread_local-dcd50ad164439d6b.rlib" "/opt/crater/target/debug/deps/libthread_id-b490e4ef07ffe04b.rlib" "/opt/crater/target/debug/deps/libaho_corasick-c04433ed2ebbed22.rlib" "/opt/crater/target/debug/deps/libmemchr-d6fe51247c47782f.rlib" "/opt/crater/target/debug/deps/liblazy_static-287e3c5731c128ca.rlib" "/opt/crater/target/debug/deps/liberror_chain-d354b0e9fe49b732.rlib" "/opt/crater/target/debug/deps/libbacktrace-17101a8b6e085880.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-d74a633e2f14ed79.rlib" "/opt/crater/target/debug/deps/librustc_demangle-550740f22608ec8c.rlib" "/opt/crater/target/debug/deps/libcfg_if-55146e185022d321.rlib" "/opt/crater/target/debug/deps/libdbghelp-94ab056f98c942bf.rlib" "/opt/crater/target/debug/deps/libwinapi-d699aca12e7b19a5.rlib" "/opt/crater/target/debug/deps/libkernel32-68d3558eb82f9807.rlib" "/opt/crater/target/debug/deps/libcrypto-885c2ae7c9209bed.rlib" "/opt/crater/target/debug/deps/libtime-2e68d24b63f6d553.rlib" "/opt/crater/target/debug/deps/librustc_serialize-3d38e6780012c145.rlib" "/opt/crater/target/debug/deps/librand-28296c9a91207140.rlib" "/opt/crater/target/debug/deps/liblibc-e7a8e468d1534af4.rlib" "/opt/crater/target/debug/deps/libargparse-52639055c41a5b25.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /opt/crater/target/debug/deps/libbacktrace-17101a8b6e085880.rlib(backtrace-17101a8b6e085880.backtrace.bcbp6rlv-cgu.4.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-17101a8b6e085880.rlib(backtrace-17101a8b6e085880.backtrace.bcbp6rlv-cgu.4.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" "84cb069c7ae7cf64b77e9283e9b7a9ee8d3b31a6deb7883d356e4a8e1ab1d6c4"` [INFO] running `"docker" "rm" "-f" "84cb069c7ae7cf64b77e9283e9b7a9ee8d3b31a6deb7883d356e4a8e1ab1d6c4"` [INFO] [stdout] 84cb069c7ae7cf64b77e9283e9b7a9ee8d3b31a6deb7883d356e4a8e1ab1d6c4