[INFO] updating cached repository pfernie/synacor-rs [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/pfernie/synacor-rs [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/pfernie/synacor-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/pfernie/synacor-rs"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/pfernie/synacor-rs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/pfernie/synacor-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pfernie/synacor-rs"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pfernie/synacor-rs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 5c2677d8145793b1085adcae0aa1b1cb73bef1dc [INFO] sha for GitHub repo pfernie/synacor-rs: 5c2677d8145793b1085adcae0aa1b1cb73bef1dc [INFO] validating manifest of pfernie/synacor-rs on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of pfernie/synacor-rs on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing pfernie/synacor-rs [INFO] finished frobbing pfernie/synacor-rs [INFO] frobbed toml for pfernie/synacor-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/pfernie/synacor-rs/Cargo.toml [INFO] started frobbing pfernie/synacor-rs [INFO] finished frobbing pfernie/synacor-rs [INFO] frobbed toml for pfernie/synacor-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pfernie/synacor-rs/Cargo.toml [INFO] crate pfernie/synacor-rs already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing pfernie/synacor-rs against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pfernie/synacor-rs:/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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 273ae3d179ab5db260c81a37f14621f3fb7d7457008ea08f4ee69615e438fd6d [INFO] running `"docker" "start" "-a" "273ae3d179ab5db260c81a37f14621f3fb7d7457008ea08f4ee69615e438fd6d"` [INFO] [stderr] Compiling gcc v0.3.41 [INFO] [stderr] Compiling backtrace v0.3.0 [INFO] [stderr] Compiling rustc-demangle v0.1.3 [INFO] [stderr] Compiling cfg-if v0.1.0 [INFO] [stderr] Compiling regex-syntax v0.4.0 [INFO] [stderr] Compiling vec_map v0.6.0 [INFO] [stderr] Compiling unicode-segmentation v1.0.1 [INFO] [stderr] Compiling byteorder v1.0.0 [INFO] [stderr] Compiling try_from v0.2.1 [INFO] [stderr] Compiling thread-id v3.0.0 [INFO] [stderr] Compiling memchr v1.0.1 [INFO] [stderr] Compiling term_size v0.2.1 [INFO] [stderr] Compiling thread_local v0.3.2 [INFO] [stderr] Compiling clap v2.20.0 [INFO] [stderr] Compiling aho-corasick v0.6.1 [INFO] [stderr] Compiling backtrace-sys v0.1.5 [INFO] [stderr] Compiling error-chain v0.7.2 [INFO] [stderr] Compiling regex v0.2.1 [INFO] [stderr] Compiling env_logger v0.4.0 [INFO] [stderr] Compiling synacor v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead [INFO] [stderr] --> src/debugger/mod.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ascii::AsciiExt; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/bin/foo.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | let t = thread::Builder::new().stack_size(1024 * 1024 * 32).spawn(move || { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting [INFO] [stderr] --> src/errors.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | / error_chain!{ [INFO] [stderr] 3 | | foreign_links { [INFO] [stderr] 4 | | Io(::std::io::Error); [INFO] [stderr] 5 | | ParseInt(::std::num::ParseIntError); [INFO] [stderr] ... | [INFO] [stderr] 41 | | } [INFO] [stderr] 42 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ascii::AsciiExt` [INFO] [stderr] --> src/debugger/mod.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ascii::AsciiExt; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] 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/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.synacor.9u7xxs27-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49" "/opt/crater/target/debug/deps/synacor-2961371741cf0a49.2i3x7npmwgoxikfx.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libtry_from-8c30c93a606ac6a4.rlib" "/opt/crater/target/debug/deps/liberror_chain-319d776cbcfc43fc.rlib" "/opt/crater/target/debug/deps/libbacktrace-6ff62fd97037c2b6.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-55ec8ff3bc57da3e.rlib" "/opt/crater/target/debug/deps/librustc_demangle-274c4da954efaa0a.rlib" "/opt/crater/target/debug/deps/libcfg_if-fcc9aff037f57c39.rlib" "/opt/crater/target/debug/deps/libdbghelp-4c5eeff50cd0cc4c.rlib" "/opt/crater/target/debug/deps/libwinapi-6779d1f046ce211b.rlib" "/opt/crater/target/debug/deps/libkernel32-579101ee9cfddddd.rlib" "/opt/crater/target/debug/deps/libenv_logger-1f2149fd2a7b9fa5.rlib" "/opt/crater/target/debug/deps/libregex-ac32b25a1ec4ce3c.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-0b3ff6a95d018017.rlib" "/opt/crater/target/debug/deps/libregex_syntax-d65dc6190568df5c.rlib" "/opt/crater/target/debug/deps/libthread_local-65bd1cabac7c8e0d.rlib" "/opt/crater/target/debug/deps/libunreachable-2017a4cad4d1cf08.rlib" "/opt/crater/target/debug/deps/libvoid-e4249880315f5034.rlib" "/opt/crater/target/debug/deps/libthread_id-ebfaec5ce032c93e.rlib" "/opt/crater/target/debug/deps/libaho_corasick-bdc02262cb2119c7.rlib" "/opt/crater/target/debug/deps/libmemchr-4067d91f352ca923.rlib" "/opt/crater/target/debug/deps/liblibc-e444f8f33bb3c635.rlib" "/opt/crater/target/debug/deps/liblog-6ed9f332a2a9d379.rlib" "/opt/crater/target/debug/deps/libbyteorder-d1200a90fe14285f.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9895e8982b0a79e7.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-57306b8ed3378a0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-54463ae5adae3649.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d99667b199a9875a.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-51f4300e102199f5.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-b3ccf1f7737a6a91.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-157c37a3ceb78853.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-505bcee45aafb736.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c29abd529ba4452b.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-895383a3232f6572.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5594cb4f559bc761.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-38e90baf978bc428.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /opt/crater/target/debug/deps/libbacktrace-6ff62fd97037c2b6.rlib(backtrace-6ff62fd97037c2b6.backtrace.elbuc2ga-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-6ff62fd97037c2b6.rlib(backtrace-6ff62fd97037c2b6.backtrace.elbuc2ga-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] error: Could not compile `synacor`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "273ae3d179ab5db260c81a37f14621f3fb7d7457008ea08f4ee69615e438fd6d"` [INFO] running `"docker" "rm" "-f" "273ae3d179ab5db260c81a37f14621f3fb7d7457008ea08f4ee69615e438fd6d"` [INFO] [stdout] 273ae3d179ab5db260c81a37f14621f3fb7d7457008ea08f4ee69615e438fd6d