[INFO] updating cached repository alanwilhelm/hydra-agent [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/alanwilhelm/hydra-agent [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/alanwilhelm/hydra-agent" "work/ex/beta-1.37-6/sources/1.36.0/gh/alanwilhelm/hydra-agent"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/alanwilhelm/hydra-agent'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/alanwilhelm/hydra-agent" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alanwilhelm/hydra-agent"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alanwilhelm/hydra-agent'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 0e8ed3336347237df9f55f2d872d578137d11e99 [INFO] sha for GitHub repo alanwilhelm/hydra-agent: 0e8ed3336347237df9f55f2d872d578137d11e99 [INFO] validating manifest of alanwilhelm/hydra-agent 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 alanwilhelm/hydra-agent 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 alanwilhelm/hydra-agent [INFO] finished frobbing alanwilhelm/hydra-agent [INFO] frobbed toml for alanwilhelm/hydra-agent written to work/ex/beta-1.37-6/sources/1.36.0/gh/alanwilhelm/hydra-agent/Cargo.toml [INFO] started frobbing alanwilhelm/hydra-agent [INFO] finished frobbing alanwilhelm/hydra-agent [INFO] frobbed toml for alanwilhelm/hydra-agent written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alanwilhelm/hydra-agent/Cargo.toml [INFO] crate alanwilhelm/hydra-agent 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 alanwilhelm/hydra-agent 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/alanwilhelm/hydra-agent:/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] 4e567722e2f1760904562f494ca56bbde64c7e1e2caa973f5d406de675d4fe8b [INFO] running `"docker" "start" "-a" "4e567722e2f1760904562f494ca56bbde64c7e1e2caa973f5d406de675d4fe8b"` [INFO] [stderr] Compiling itoa v0.3.3 [INFO] [stderr] Compiling serde v1.0.12 [INFO] [stderr] Compiling libz-sys v1.0.16 [INFO] [stderr] Compiling cmake v0.1.25 [INFO] [stderr] Compiling curl-sys v0.3.14 [INFO] [stderr] Compiling miniz-sys v0.1.9 [INFO] [stderr] Compiling unicode-bidi v0.2.6 [INFO] [stderr] Compiling sys-info v0.5.1 [INFO] [stderr] Compiling filetime v0.1.10 [INFO] [stderr] Compiling unix_socket v0.5.0 [INFO] [stderr] Compiling jed v0.1.2 [INFO] [stderr] Compiling uuid v0.2.3 [INFO] [stderr] Compiling tar v0.3.4 [INFO] [stderr] Compiling libssh2-sys v0.2.6 [INFO] [stderr] Compiling libgit2-sys v0.6.14 [INFO] [stderr] Compiling serde_derive v1.0.12 [INFO] [stderr] Compiling hyperlocal v0.3.0 [INFO] [stderr] Compiling hyper-openssl v0.2.7 [INFO] [stderr] Compiling url v0.5.10 [INFO] [stderr] Compiling flate2 v0.2.19 [INFO] [stderr] Compiling shiplift v0.3.2 [INFO] [stderr] Compiling serde_json v1.0.3 [INFO] [stderr] Compiling git2 v0.6.8 [INFO] [stderr] Compiling hydra_agent v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `ErrorKind` [INFO] [stderr] --> src/profiler/mod.rs:3:22 [INFO] [stderr] | [INFO] [stderr] 3 | use std::io::{Error, ErrorKind}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `ErrorKind` [INFO] [stderr] --> src/git/mod.rs:3:22 [INFO] [stderr] | [INFO] [stderr] 3 | use std::io::{Error, ErrorKind}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:21:21 [INFO] [stderr] | [INFO] [stderr] 21 | Err(e) => println!("{}", "{\"error\" : \"error\"}"), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | Err(e) => println!("{}", "{\"error\" : \"error\"}"), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/serializer/mod.rs:8:13 [INFO] [stderr] | [INFO] [stderr] 8 | let mut s: String = String::new(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/profiler/mod.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let z: u32 = u32::min_value(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/profiler/mod.rs:22:13 [INFO] [stderr] | [INFO] [stderr] 22 | Err(e) => undef.clone(), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/profiler/mod.rs:27:13 [INFO] [stderr] | [INFO] [stderr] 27 | Err(e) => json_z.clone(), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/profiler/mod.rs:32:13 [INFO] [stderr] | [INFO] [stderr] 32 | Err(e) => undef.clone(), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/profiler/mod.rs:37:13 [INFO] [stderr] | [INFO] [stderr] 37 | Err(e) => undef.clone(), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/profiler/mod.rs:42:13 [INFO] [stderr] | [INFO] [stderr] 42 | Err(e) => undef.clone(), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `repo` [INFO] [stderr] --> src/git/mod.rs:11:7 [INFO] [stderr] | [INFO] [stderr] 11 | let repo = match Repository::clone(url, ".hydra") { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_repo` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remote_repo` [INFO] [stderr] --> src/git/mod.rs:7:26 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn clone_remote_repo(remote_repo: &str) -> Result<(String), Error>{ [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_remote_repo` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/serializer/mod.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let mut s: String = String::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: function is never used: `status` [INFO] [stderr] --> src/docker/mod.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | pub fn status() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `clone_remote_repo` [INFO] [stderr] --> src/git/mod.rs:7:1 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn clone_remote_repo(remote_repo: &str) -> Result<(String), Error>{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.hydra_agent.b3o3ekay-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f" "/opt/crater/target/debug/deps/hydra_agent-9790d8b6c811c57f.41vtzu74vo7dkq1y.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/libgit2-sys-dcfbcd7982154764/out/lib" "-L" "/opt/crater/target/debug/build/curl-sys-78e831f4b2e6f99f/out/lib" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/crater/target/debug/build/libssh2-sys-633857e9a4657e94/out/lib" "-L" "/opt/crater/target/debug/build/miniz-sys-f5de5b8a6bee8366/out" "-L" "/opt/crater/target/debug/build/sys-info-1c35b8f8a534dfb1/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/libgit2-ec15fe200417b45b.rlib" "/opt/crater/target/debug/deps/libopenssl_probe-c4f67d2218fe1127.rlib" "/opt/crater/target/debug/deps/liblibgit2_sys-dbd40200f7e42abd.rlib" "/opt/crater/target/debug/deps/libcurl_sys-72aa79f7dc2fa5db.rlib" "/opt/crater/target/debug/deps/liblibssh2_sys-76f81e11adbc12ef.rlib" "/opt/crater/target/debug/deps/liblibz_sys-44bfe18c2e20ef9e.rlib" "/opt/crater/target/debug/deps/libshiplift-df222c4884ce3af0.rlib" "/opt/crater/target/debug/deps/libtar-e6f73747c2da9eac.rlib" "/opt/crater/target/debug/deps/libfiletime-54020372808a4ae5.rlib" "/opt/crater/target/debug/deps/libwinapi-6779d1f046ce211b.rlib" "/opt/crater/target/debug/deps/liburl-c6819ad8431ba547.rlib" "/opt/crater/target/debug/deps/libunicode_bidi-bb77b93722633e77.rlib" "/opt/crater/target/debug/deps/libuuid-a7cfb1eaeccefac9.rlib" "/opt/crater/target/debug/deps/librand-d8843e95194e4dbf.rlib" "/opt/crater/target/debug/deps/libjed-91389d057574ba2a.rlib" "/opt/crater/target/debug/deps/libflate2-40b45c74de69953f.rlib" "/opt/crater/target/debug/deps/libminiz_sys-94941b73b55a53d0.rlib" "/opt/crater/target/debug/deps/libhyperlocal-4a1a7b6ad478e724.rlib" "/opt/crater/target/debug/deps/librustc_serialize-04f5d71c016b4cf1.rlib" "/opt/crater/target/debug/deps/libhyper_openssl-889502b7f331232d.rlib" "/opt/crater/target/debug/deps/libopenssl-d0360e1bea65e775.rlib" "/opt/crater/target/debug/deps/libopenssl_sys-cd6eb14c466141e9.rlib" "/opt/crater/target/debug/deps/liblazy_static-098892872ee11058.rlib" "/opt/crater/target/debug/deps/libforeign_types-7615ed0db98793dc.rlib" "/opt/crater/target/debug/deps/libbitflags-acbeb843e8a410b5.rlib" "/opt/crater/target/debug/deps/libantidote-01606454dca6e687.rlib" "/opt/crater/target/debug/deps/libhyper-7d2b76baf62bd15e.rlib" "/opt/crater/target/debug/deps/libmime-33d5630ff86dbc0a.rlib" "/opt/crater/target/debug/deps/liblanguage_tags-64cc9c97c5566356.rlib" "/opt/crater/target/debug/deps/libtypeable-215d98ef64fbe0e2.rlib" "/opt/crater/target/debug/deps/libtraitobject-e33df04668a8e80e.rlib" "/opt/crater/target/debug/deps/libnum_cpus-3dc56da7bea7a37c.rlib" "/opt/crater/target/debug/deps/libhttparse-4642ab7847864cb2.rlib" "/opt/crater/target/debug/deps/libunicase-1cff82de2de4e099.rlib" "/opt/crater/target/debug/deps/liburl-a0fd338508dfb521.rlib" "/opt/crater/target/debug/deps/libpercent_encoding-e6507f3ff156026a.rlib" "/opt/crater/target/debug/deps/libidna-63d0bf4b80f6f512.rlib" "/opt/crater/target/debug/deps/libunicode_normalization-ccbd5b9fce77c0b9.rlib" "/opt/crater/target/debug/deps/libunicode_bidi-6ed19e0ade8d9d55.rlib" "/opt/crater/target/debug/deps/libmatches-3816aed49fc39533.rlib" "/opt/crater/target/debug/deps/libtime-ffbcb4b7323e605a.rlib" "/opt/crater/target/debug/deps/libbase64-7e1e6e2065a6f9d1.rlib" "/opt/crater/target/debug/deps/libsafemem-18da3c741f61ab39.rlib" "/opt/crater/target/debug/deps/libbyteorder-ed02566a041fbdf8.rlib" "/opt/crater/target/debug/deps/liblog-6e83ecefb0e0b4fa.rlib" "/opt/crater/target/debug/deps/libsys_info-679e5a5aff219eaa.rlib" "/opt/crater/target/debug/deps/liblibc-f2224244ee783b7d.rlib" "/opt/crater/target/debug/deps/libserde_json-5cffdd1a2d924d6e.rlib" "/opt/crater/target/debug/deps/libdtoa-afccdcd5ba5ab8a4.rlib" "/opt/crater/target/debug/deps/libitoa-11b474db5a004b6b.rlib" "/opt/crater/target/debug/deps/libnum_traits-8e9dd151ccd4e296.rlib" "/opt/crater/target/debug/deps/libserde-3e4653224f4b302d.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" "-lz" "-lssl" "-lcrypto" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /opt/crater/target/debug/deps/libsys_info-679e5a5aff219eaa.rlib(sys_info-679e5a5aff219eaa.sys_info.4tu5cgqw-cgu.1.rcgu.o): In function `sys_info::os_type': [INFO] [stderr] /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-info-0.5.1/lib.rs:135: undefined reference to `get_os_type' [INFO] [stderr] /opt/crater/target/debug/deps/libsys_info-679e5a5aff219eaa.rlib(sys_info-679e5a5aff219eaa.sys_info.4tu5cgqw-cgu.1.rcgu.o): In function `sys_info::os_release': [INFO] [stderr] /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-info-0.5.1/lib.rs:152: undefined reference to `get_os_release' [INFO] [stderr] /opt/crater/target/debug/deps/libsys_info-679e5a5aff219eaa.rlib(sys_info-679e5a5aff219eaa.sys_info.4tu5cgqw-cgu.1.rcgu.o): In function `sys_info::cpu_speed': [INFO] [stderr] /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-info-0.5.1/lib.rs:186: undefined reference to `get_cpu_speed' [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 `hydra_agent`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "4e567722e2f1760904562f494ca56bbde64c7e1e2caa973f5d406de675d4fe8b"` [INFO] running `"docker" "rm" "-f" "4e567722e2f1760904562f494ca56bbde64c7e1e2caa973f5d406de675d4fe8b"` [INFO] [stdout] 4e567722e2f1760904562f494ca56bbde64c7e1e2caa973f5d406de675d4fe8b