[INFO] updating cached repository mmstick/parallel [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mmstick/parallel [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mmstick/parallel" "work/ex/beta-1.37-6/sources/1.36.0/gh/mmstick/parallel"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mmstick/parallel'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mmstick/parallel" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mmstick/parallel"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mmstick/parallel'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c5a0df810acae4ca04bc4c0291e9f0f00309c828 [INFO] sha for GitHub repo mmstick/parallel: c5a0df810acae4ca04bc4c0291e9f0f00309c828 [INFO] validating manifest of mmstick/parallel 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 mmstick/parallel 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 mmstick/parallel [INFO] finished frobbing mmstick/parallel [INFO] frobbed toml for mmstick/parallel written to work/ex/beta-1.37-6/sources/1.36.0/gh/mmstick/parallel/Cargo.toml [INFO] started frobbing mmstick/parallel [INFO] finished frobbing mmstick/parallel [INFO] frobbed toml for mmstick/parallel written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mmstick/parallel/Cargo.toml [INFO] crate mmstick/parallel 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 mmstick/parallel 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mmstick/parallel:/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] c70de53898062c7985adafaa05f8f3dfb0e8b2be6c9b7aab7c71579ddd3343a4 [INFO] running `"docker" "start" "-a" "c70de53898062c7985adafaa05f8f3dfb0e8b2be6c9b7aab7c71579ddd3343a4"` [INFO] [stderr] Compiling permutate v0.3.2 [INFO] [stderr] Compiling numtoa v0.0.7 [INFO] [stderr] Compiling sys-info v0.5.0 [INFO] [stderr] Compiling wait-timeout v0.1.5 [INFO] [stderr] Compiling parallel v0.11.3 (/opt/crater/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/main.rs:242:9 [INFO] [stderr] | [INFO] [stderr] 242 | /// Prints messages from executed commands in the correct order. [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 243 | let errors = execute::receive_messages(input_rx, args, &base_path, &processed_path, &errors_path); [INFO] [stderr] | -------------------------------------------------------------------------------------------------- rustdoc does not generate documentation for statements [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/main.rs:245:9 [INFO] [stderr] | [INFO] [stderr] 245 | /// Wait for all threads to exit before proceeding. [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 246 | for thread in threads { thread.join().unwrap(); } [INFO] [stderr] | ------------------------------------------------- rustdoc does not generate documentation for expressions [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/arguments/mod.rs:553:9 [INFO] [stderr] | [INFO] [stderr] 553 | let mut append_list = &mut Vec::new(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/execute/exec_commands.rs:36:13 [INFO] [stderr] | [INFO] [stderr] 36 | let mut command_buffer = &mut String::with_capacity(64); [INFO] [stderr] | ----^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/execute/pipe.rs:41:17 [INFO] [stderr] | [INFO] [stderr] 41 | let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child"); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [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/parallel-1def498ddd334780.parallel.5x205ltv-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.parallel.5x205ltv-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/parallel-1def498ddd334780" "/opt/crater/target/debug/deps/parallel-1def498ddd334780.2obe494kz9wdb15x.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/sys-info-b67ad233708784b9/out" "-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/libwait_timeout-34d8c5d25ce2569c.rlib" "/opt/crater/target/debug/deps/libtime-3ae579209d46b2b9.rlib" "/opt/crater/target/debug/deps/libsys_info-b99999bc81411cf6.rlib" "/opt/crater/target/debug/deps/libsmallvec-478e5c2dac265abd.rlib" "/opt/crater/target/debug/deps/libpermutate-a0df64838a0247f1.rlib" "/opt/crater/target/debug/deps/libnum_cpus-295873b90f88248a.rlib" "/opt/crater/target/debug/deps/liblibc-955f030325dfd0ed.rlib" "/opt/crater/target/debug/deps/libnumtoa-992350387994ed79.rlib" "/opt/crater/target/debug/deps/libitoa-2c68669aa577ea5b.rlib" "/opt/crater/target/debug/deps/libarrayvec-c1e4d83371b3dd09.rlib" "/opt/crater/target/debug/deps/libnodrop-b35cecb68ede0f00.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/libsys_info-b99999bc81411cf6.rlib(sys_info-b99999bc81411cf6.sys_info.ctllnl5x-cgu.2.rcgu.o): In function `sys_info::mem_info': [INFO] [stderr] /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-info-0.5.0/lib.rs:252: undefined reference to `get_mem_info' [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 `parallel`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "c70de53898062c7985adafaa05f8f3dfb0e8b2be6c9b7aab7c71579ddd3343a4"` [INFO] running `"docker" "rm" "-f" "c70de53898062c7985adafaa05f8f3dfb0e8b2be6c9b7aab7c71579ddd3343a4"` [INFO] [stdout] c70de53898062c7985adafaa05f8f3dfb0e8b2be6c9b7aab7c71579ddd3343a4