[INFO] updating cached repository https://github.com/sbeckeriv/greedy-color
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fb88ba8f338e4944da2a6998635fca5f393715db
[INFO] testing sbeckeriv/greedy-color against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbeckeriv%2Fgreedy-color" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sbeckeriv/greedy-color on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sbeckeriv/greedy-color
[INFO] finished tweaking git repo https://github.com/sbeckeriv/greedy-color
[INFO] tweaked toml for git repo https://github.com/sbeckeriv/greedy-color written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/sbeckeriv/greedy-color already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 5ff1a885af568e00a7e5718eedde690332db25c3edf4b9d249856a4dd71dde45
[INFO] running `"docker" "start" "-a" "5ff1a885af568e00a7e5718eedde690332db25c3edf4b9d249856a4dd71dde45"`
[INFO] [stderr]    Compiling ruby-sys v0.2.17
[INFO] [stderr]    Compiling libc v0.2.11
[INFO] [stderr]    Compiling ruru v0.9.1
[INFO] [stderr]    Compiling hash_color v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `AnyObject`, `Boolean`, `VM`
[INFO] [stderr]  --> src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ruru::{AnyObject, Boolean, Class, Fixnum, Hash, VM, Array};
[INFO] [stderr]   |            ^^^^^^^^^  ^^^^^^^                       ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ruru::types::Argc`
[INFO] [stderr]  --> src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ruru::types::Argc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/lib.rs:6:33
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::{HashSet, HashMap};
[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/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.hash_color.23q78bcq-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/libhash_color.so" "-Wl,--version-script=/tmp/rustcIjOfzq/list" "/opt/rustwide/target/debug/deps/hash_color.qpymobf1fudzsyu.rcgu.o" "/opt/rustwide/target/debug/deps/hash_color.51cen3o0m154ss5w.rcgu.o" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/usr/lib" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libruru-ec8d257dbd3999b5.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libruby_sys-d9be2ef8ee12d121.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/liblibc-9e4c57ec55cf923d.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/liblazy_static-e7342ac075278d29.rlib" "-Wl,--no-whole-archive" "-Wl,--start-group" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libstd-db812c66f862af4c.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libpanic_unwind-e7871a21575d5ff7.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libhashbrown-2f2c581bc0d759e6.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/librustc_std_workspace_alloc-35731cabc05dc8a0.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libbacktrace-36477394541292db.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libbacktrace_sys-8b706b170c1272d8.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/librustc_demangle-801dbb3043ccf581.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libunwind-a32aa66ce6f72b21.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libcfg_if-d00ea3bfb2bb6c00.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/liblibc-d2c6ebe88c3e113c.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/liballoc-df74f62f6bb60621.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/librustc_std_workspace_core-2170473575daeedb.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcIjOfzq/libcore-1a08089bbddc4f51.rlib" "-Wl,--no-whole-archive" "-Wl,--end-group" "/tmp/rustcIjOfzq/libcompiler_builtins-f8f562e5472ad5c3.rlib" "-Wl,-Bdynamic" "-lruby-2.5" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" "-shared"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lruby-2.5
[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 `hash_color`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5ff1a885af568e00a7e5718eedde690332db25c3edf4b9d249856a4dd71dde45"`
[INFO] running `"docker" "rm" "-f" "5ff1a885af568e00a7e5718eedde690332db25c3edf4b9d249856a4dd71dde45"`
[INFO] [stdout] 5ff1a885af568e00a7e5718eedde690332db25c3edf4b9d249856a4dd71dde45