[INFO] cloning repository https://github.com/pfernie/synacor-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pfernie/synacor-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpfernie%2Fsynacor-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpfernie%2Fsynacor-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5c2677d8145793b1085adcae0aa1b1cb73bef1dc [INFO] testing pfernie/synacor-rs against beta-2021-01-01 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpfernie%2Fsynacor-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/pfernie/synacor-rs on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/pfernie/synacor-rs [INFO] finished tweaking git repo https://github.com/pfernie/synacor-rs [INFO] tweaked toml for git repo https://github.com/pfernie/synacor-rs written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/pfernie/synacor-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded clap v2.20.0 [INFO] [stderr] Downloaded rustc-demangle v0.1.3 [INFO] [stderr] Downloaded backtrace-sys v0.1.5 [INFO] [stderr] Downloaded backtrace v0.3.0 [INFO] [stderr] Downloaded env_logger v0.4.0 [INFO] [stderr] Downloaded libc v0.2.18 [INFO] [stderr] Downloaded aho-corasick v0.6.1 [INFO] [stderr] Downloaded thread_local v0.3.2 [INFO] [stderr] Downloaded unicode-segmentation v1.0.1 [INFO] [stderr] Downloaded try_from v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fd4fba97b162dbcf66022a6075d39cfffbd471f4fd80c09c1f955ec87e0b7710 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "fd4fba97b162dbcf66022a6075d39cfffbd471f4fd80c09c1f955ec87e0b7710", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fd4fba97b162dbcf66022a6075d39cfffbd471f4fd80c09c1f955ec87e0b7710", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd4fba97b162dbcf66022a6075d39cfffbd471f4fd80c09c1f955ec87e0b7710", kill_on_drop: false }` [INFO] [stdout] fd4fba97b162dbcf66022a6075d39cfffbd471f4fd80c09c1f955ec87e0b7710 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 102467e77f1a9244c0fb2313b31a3bd78f2b244772982949bca3a80fb915e993 [INFO] running `Command { std: "docker" "start" "-a" "102467e77f1a9244c0fb2313b31a3bd78f2b244772982949bca3a80fb915e993", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.18 [INFO] [stderr] Compiling gcc v0.3.41 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling backtrace v0.3.0 [INFO] [stderr] Compiling cfg-if v0.1.0 [INFO] [stderr] Compiling utf8-ranges v1.0.0 [INFO] [stderr] Compiling regex-syntax v0.4.0 [INFO] [stderr] Compiling rustc-demangle v0.1.3 [INFO] [stderr] Compiling bitflags v0.7.0 [INFO] [stderr] Compiling log v0.3.6 [INFO] [stderr] Compiling unicode-segmentation v1.0.1 [INFO] [stderr] Compiling vec_map v0.6.0 [INFO] [stderr] Compiling byteorder v1.0.0 [INFO] [stderr] Compiling try_from v0.2.1 [INFO] [stderr] Compiling dbghelp-sys v0.2.0 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling unreachable v0.1.1 [INFO] [stderr] Compiling memchr v1.0.1 [INFO] [stderr] Compiling thread-id v3.0.0 [INFO] [stderr] Compiling term_size v0.2.1 [INFO] [stderr] Compiling thread_local v0.3.2 [INFO] [stderr] Compiling aho-corasick v0.6.1 [INFO] [stderr] Compiling clap v2.20.0 [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/rustwide/workdir) [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/bin/foo.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | let t = thread::Builder::new().stack_size(1024 * 1024 * 32).spawn(move || { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/debugger/mod.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | impl AsMut for VmState { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Inspectable + 'static` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/debugger/mod.rs:25:35 [INFO] [stdout] | [INFO] [stdout] 25 | fn as_mut(&mut self) -> &mut (Inspectable + 'static) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Inspectable + 'static` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/debugger/mod.rs:34:12 [INFO] [stdout] | [INFO] [stdout] 34 | impl AsRef for VmState { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Inspectable + 'static` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/debugger/mod.rs:35:27 [INFO] [stdout] | [INFO] [stdout] 35 | fn as_ref(&self) -> &(Inspectable + 'static) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Inspectable + 'static` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/memory.rs:326:14 [INFO] [stdout] | [INFO] [stdout] 326 | 0...MAX_ADDR => Ok(Value::Literal(u)), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/memory.rs:327:18 [INFO] [stdout] | [INFO] [stdout] 327 | 32768...32776 => Register::try_from(u).map(Value::FromRegister), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead [INFO] [stdout] --> src/debugger/mod.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::ascii::AsciiExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/errors.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | / error_chain!{ [INFO] [stdout] 3 | | foreign_links { [INFO] [stdout] 4 | | Io(::std::io::Error); [INFO] [stdout] 5 | | ParseInt(::std::num::ParseIntError); [INFO] [stdout] ... | [INFO] [stdout] 41 | | } [INFO] [stdout] 42 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/errors.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | / error_chain!{ [INFO] [stdout] 3 | | foreign_links { [INFO] [stdout] 4 | | Io(::std::io::Error); [INFO] [stdout] 5 | | ParseInt(::std::num::ParseIntError); [INFO] [stdout] ... | [INFO] [stdout] 41 | | } [INFO] [stdout] 42 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ascii::AsciiExt` [INFO] [stdout] --> src/debugger/mod.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::ascii::AsciiExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit code: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.synacor.a9vaelp4-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47" "/opt/rustwide/target/debug/deps/synacor-ded2d1bd9ea58d47.mme7x2urfkvqdf8.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libtry_from-03679c70a102f2e3.rlib" "/opt/rustwide/target/debug/deps/liberror_chain-3a54acd2bdd76900.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-fab5106fa1b20e30.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-02ee8592e8070d71.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-44897c33622342d1.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4dda033e97829cbd.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-9b859a4b43489b4d.rlib" "/opt/rustwide/target/debug/deps/libwinapi-53d291ef9733f714.rlib" "/opt/rustwide/target/debug/deps/libkernel32-5d5d19a3cac54ca4.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-35517c98848b78ea.rlib" "/opt/rustwide/target/debug/deps/libregex-8b532ea526989665.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-a04c6d4b03ff7fd3.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-0263ef94bb408981.rlib" "/opt/rustwide/target/debug/deps/libthread_local-36b26f86643276bb.rlib" "/opt/rustwide/target/debug/deps/libunreachable-6f379756d9cfe54a.rlib" "/opt/rustwide/target/debug/deps/libvoid-8e46a7745eb9476a.rlib" "/opt/rustwide/target/debug/deps/libthread_id-171edb44fea394f4.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-79459037b79d4d7e.rlib" "/opt/rustwide/target/debug/deps/libmemchr-9423c2d21b156d4a.rlib" "/opt/rustwide/target/debug/deps/liblibc-a0ae046179b3f4dc.rlib" "/opt/rustwide/target/debug/deps/liblog-bf31d5aeaa739bc1.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-a57f875470cf8085.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7444fd17919e9af0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-0ee2f67026959ab7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-df1bcd1e82256d04.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-ed9ecf1b54021131.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0ede66bb24e94b96.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7c2de7f50940865c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-b138d50085fd4683.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-6576870d8f2b9ae2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-042a30c5f67b2c91.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7b3f33d3dbe385dc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-90b3063cd7b22527.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-17f9484f8dc4da1e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-df38345acd9d92e1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5e10ca10bdd9e54.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9e5b4162eeef2cef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-3a4e739a77468800.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f3a0c116d5e04d6.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" [INFO] [stdout] = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-fab5106fa1b20e30.rlib(backtrace-fab5106fa1b20e30.backtrace.13hgyx9b-cgu.12.rcgu.o): in function `backtrace::symbolize::libbacktrace::init_state::{{closure}}': [INFO] [stdout] /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state' [INFO] [stdout] /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-fab5106fa1b20e30.rlib(backtrace-fab5106fa1b20e30.backtrace.13hgyx9b-cgu.12.rcgu.o): in function `backtrace::symbolize::libbacktrace::resolve': [INFO] [stdout] /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo' [INFO] [stdout] /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo' [INFO] [stdout] collect2: error: ld returned 1 exit status [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `synacor` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "102467e77f1a9244c0fb2313b31a3bd78f2b244772982949bca3a80fb915e993", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "102467e77f1a9244c0fb2313b31a3bd78f2b244772982949bca3a80fb915e993", kill_on_drop: false }` [INFO] [stdout] 102467e77f1a9244c0fb2313b31a3bd78f2b244772982949bca3a80fb915e993