[INFO] updating cached repository https://github.com/cwchentw/gsl_matrix_demo_in_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4637ca3e37819421376c67a288d396e7b8721b3
[INFO] testing cwchentw/gsl_matrix_demo_in_Rust against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcwchentw%2Fgsl_matrix_demo_in_Rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cwchentw/gsl_matrix_demo_in_Rust on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config
[INFO] started tweaking git repo https://github.com/cwchentw/gsl_matrix_demo_in_Rust
[INFO] finished tweaking git repo https://github.com/cwchentw/gsl_matrix_demo_in_Rust
[INFO] tweaked toml for git repo https://github.com/cwchentw/gsl_matrix_demo_in_Rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/cwchentw/gsl_matrix_demo_in_Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5becb3cfafa0541c5f869b63ec6c1520b5ed6c261e980ca1d7b327117a4cf73
[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" "b5becb3cfafa0541c5f869b63ec6c1520b5ed6c261e980ca1d7b327117a4cf73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5becb3cfafa0541c5f869b63ec6c1520b5ed6c261e980ca1d7b327117a4cf73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5becb3cfafa0541c5f869b63ec6c1520b5ed6c261e980ca1d7b327117a4cf73", kill_on_drop: false }`
[INFO] [stdout] b5becb3cfafa0541c5f869b63ec6c1520b5ed6c261e980ca1d7b327117a4cf73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 45a727238435be2a1e1361af49afe5f267823b6a2ca0216780afdd1845ff2995
[INFO] running `Command { std: "docker" "start" "-a" "45a727238435be2a1e1361af49afe5f267823b6a2ca0216780afdd1845ff2995", kill_on_drop: false }`
[INFO] [stderr]    Compiling gsl_matrix_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let mut m3 = gsl::Matrix::dot(&m1, &m2);
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CblasTrans`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         CblasTrans=112,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CblasConjTrans`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         CblasConjTrans=113
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[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-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.gsl_matrix_demo.6rf64gji-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c" "/opt/rustwide/target/debug/deps/gsl_matrix_demo-106f2d6dd9c9279c.2k2t05bo7s0ruanb.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lgsl" "-Wl,--start-group" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-d66e0ceb8eaec9b8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-9717ec0599b569a0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-04369de9ba916647.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-997d622c2e4dbe5c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-0359c4288a5ef89f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-1b25ede22d698ab3.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-37940b486a68e488.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-06b77c27e794c7c6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-4d07e02a8df36da1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-fb29e0695c0a0f79.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e16188b4cf97e8bb.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-5eb391c8dabdee77.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-b0689b528b222bee.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ed072ac495e62e7a.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lgsl
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gsl_matrix_demo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "45a727238435be2a1e1361af49afe5f267823b6a2ca0216780afdd1845ff2995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a727238435be2a1e1361af49afe5f267823b6a2ca0216780afdd1845ff2995", kill_on_drop: false }`
[INFO] [stdout] 45a727238435be2a1e1361af49afe5f267823b6a2ca0216780afdd1845ff2995