[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/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/pfernie/synacor-rs"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/pfernie/synacor-rs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/pfernie/synacor-rs" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/pfernie/synacor-rs"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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 master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of pfernie/synacor-rs on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "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/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/pfernie/synacor-rs/Cargo.toml [INFO] crate pfernie/synacor-rs has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing pfernie/synacor-rs against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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=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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"` [INFO] [stdout] 4feda2815b3201d364421d801e6d607c79be856897d4179e186e70a1d5a878c5 [INFO] running `"docker" "start" "-a" "4feda2815b3201d364421d801e6d607c79be856897d4179e186e70a1d5a878c5"` [INFO] [stderr] Compiling gcc v0.3.41 [INFO] [stderr] Compiling backtrace v0.3.0 [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 clap v2.20.0 [INFO] [stderr] Compiling thread_local v0.3.2 [INFO] [stderr] Compiling aho-corasick v0.6.1 [INFO] [stderr] Compiling backtrace-sys v0.1.5 [INFO] [stderr] Compiling regex v0.2.1 [INFO] [stderr] Compiling error-chain v0.7.2 [INFO] [stderr] Compiling env_logger v0.4.0 [INFO] [stderr] Compiling synacor v0.1.0 (/opt/crater/workdir) [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::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: 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 error 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/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.synacor.6h8oec3n-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4" "/opt/crater/target/debug/deps/synacor-8b34e6463e236cf4.96jveclbwwgn9bi.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libtry_from-90cbba1c37c805bb.rlib" "/opt/crater/target/debug/deps/liberror_chain-6cabbce682e1e904.rlib" "/opt/crater/target/debug/deps/libbacktrace-c4a0e7ec3af62a51.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-d088574941fbec78.rlib" "/opt/crater/target/debug/deps/librustc_demangle-bedd9530c131cc28.rlib" "/opt/crater/target/debug/deps/libcfg_if-093b3a73669c0adf.rlib" "/opt/crater/target/debug/deps/libdbghelp-b3513b10232833cd.rlib" "/opt/crater/target/debug/deps/libwinapi-7dff080b6462bfe0.rlib" "/opt/crater/target/debug/deps/libkernel32-9b717afd956943fe.rlib" "/opt/crater/target/debug/deps/libenv_logger-06f234369c6ced23.rlib" "/opt/crater/target/debug/deps/libregex-74c8f2b86a890ecf.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-9d91b0e8b555e8f3.rlib" "/opt/crater/target/debug/deps/libregex_syntax-9ee1be8496bda24d.rlib" "/opt/crater/target/debug/deps/libthread_local-f7d17dd74e38a5f4.rlib" "/opt/crater/target/debug/deps/libunreachable-339551e1dd07d988.rlib" "/opt/crater/target/debug/deps/libvoid-b0b37fff1e1e077d.rlib" "/opt/crater/target/debug/deps/libthread_id-2759fbbd79df10b6.rlib" "/opt/crater/target/debug/deps/libaho_corasick-6f60c4cfae17b68b.rlib" "/opt/crater/target/debug/deps/libmemchr-1d787c06e4b80d5f.rlib" "/opt/crater/target/debug/deps/liblibc-7f3cd8e33873d9dc.rlib" "/opt/crater/target/debug/deps/liblog-290a6fa2618b6de5.rlib" "/opt/crater/target/debug/deps/libbyteorder-2dac41805c00b07d.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8469d768695d9748.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-786c0f406992159b.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-eda54ffd3e6402cc.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3b59adbc83c396a4.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-1d2bb09f4dcbd4be.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-e96acda46b77a2fd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-596074f575b1f832.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57f280c1596673cd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-16132b5b2ecf9ec1.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-37286a0a9c4289ff.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /opt/crater/target/debug/deps/libbacktrace-c4a0e7ec3af62a51.rlib(backtrace-c4a0e7ec3af62a51.backtrace.3i4189rb-cgu.12.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-c4a0e7ec3af62a51.rlib(backtrace-c4a0e7ec3af62a51.backtrace.3i4189rb-cgu.12.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" "4feda2815b3201d364421d801e6d607c79be856897d4179e186e70a1d5a878c5"` [INFO] running `"docker" "rm" "-f" "4feda2815b3201d364421d801e6d607c79be856897d4179e186e70a1d5a878c5"` [INFO] [stdout] 4feda2815b3201d364421d801e6d607c79be856897d4179e186e70a1d5a878c5