[INFO] cloning repository https://github.com/jakubdibala/gf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakubdibala/gf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubdibala%2Fgf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubdibala%2Fgf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 174dfcf428295a7f06a23b1605d493f5a52095d1
[INFO] testing jakubdibala/gf against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubdibala%2Fgf" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakubdibala/gf on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jakubdibala/gf
[INFO] finished tweaking git repo https://github.com/jakubdibala/gf
[INFO] tweaked toml for git repo https://github.com/jakubdibala/gf written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/jakubdibala/gf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51aa7159f583c0f726e0e83e4fc50b4bb8847e928b12da03bdc8ed3e7901d039
[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" "51aa7159f583c0f726e0e83e4fc50b4bb8847e928b12da03bdc8ed3e7901d039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51aa7159f583c0f726e0e83e4fc50b4bb8847e928b12da03bdc8ed3e7901d039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51aa7159f583c0f726e0e83e4fc50b4bb8847e928b12da03bdc8ed3e7901d039", kill_on_drop: false }`
[INFO] [stdout] 51aa7159f583c0f726e0e83e4fc50b4bb8847e928b12da03bdc8ed3e7901d039
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e7235d223b6b43da20bb8163acc0f7702304b491370e2ceed078ffc80a28557
[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" "5e7235d223b6b43da20bb8163acc0f7702304b491370e2ceed078ffc80a28557", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.23
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling cmake v0.1.33
[INFO] [stderr]    Compiling colored v1.6.1
[INFO] [stderr]    Compiling url v1.7.1
[INFO] [stderr]    Compiling libz-sys v1.0.20
[INFO] [stderr]    Compiling openssl-sys v0.9.35
[INFO] [stderr]    Compiling curl-sys v0.4.8
[INFO] [stderr]    Compiling libssh2-sys v0.2.10
[INFO] [stderr]    Compiling libgit2-sys v0.7.7
[INFO] [stderr]    Compiling git2 v0.7.5
[INFO] [stderr]    Compiling gf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SubCommand`
[INFO] [stdout]  --> src/main.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | use clap::{Arg, App, SubCommand};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repo`
[INFO] [stdout]   --> src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let repo = match git2::Repository::open(Path::new(REPO_PATH)) {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_repo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `branch_list`
[INFO] [stdout]   --> src/repository.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn branch_list(r: git2::Repository) -> Vec<Branch> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `current_branch`
[INFO] [stdout]   --> src/repository.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn current_branch(r: git2::Repository) -> String {
[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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.gf.f50lgpwc-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f" "/opt/rustwide/target/debug/deps/gf-42e7f5e3cd53fb9f.2vzrcgo9wmgpd6pg.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/libgit2-sys-eda75ae9305d8427/out/lib" "-L" "/opt/rustwide/target/debug/build/curl-sys-1a2a65f00ccdfb4d/out/lib" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/rustwide/target/debug/build/libssh2-sys-df6e50a828de9484/out/lib" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libclap-dc0a6111eec31a8c.rlib" "/opt/rustwide/target/debug/deps/libvec_map-8d2af087de360564.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-9e7eb393cf1e6503.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-a9a20247601aeda8.rlib" "/opt/rustwide/target/debug/deps/libstrsim-5da1e89203290db5.rlib" "/opt/rustwide/target/debug/deps/libatty-8e01cdf74aacefca.rlib" "/opt/rustwide/target/debug/deps/libansi_term-017778a055950e81.rlib" "/opt/rustwide/target/debug/deps/libgit2-d563a2f77c6ef49d.rlib" "/opt/rustwide/target/debug/deps/libopenssl_probe-0807aab40c872817.rlib" "/opt/rustwide/target/debug/deps/liblog-54466456bbf5bdd4.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-ad74d04d99ea3981.rlib" "/opt/rustwide/target/debug/deps/libbitflags-5c7d271dfd8fcb55.rlib" "/opt/rustwide/target/debug/deps/liblibgit2_sys-5fa67438b3dd2091.rlib" "/opt/rustwide/target/debug/deps/libcurl_sys-e08a36cb7682660f.rlib" "/opt/rustwide/target/debug/deps/liblibssh2_sys-fdbd1ed934bef917.rlib" "/opt/rustwide/target/debug/deps/libopenssl_sys-704a7d32ca7afe53.rlib" "/opt/rustwide/target/debug/deps/liblibz_sys-a3e468062b6cc1e0.rlib" "/opt/rustwide/target/debug/deps/liburl-8da7ae3e1a9cc0ff.rlib" "/opt/rustwide/target/debug/deps/libpercent_encoding-6cfaa5fc89ff72d4.rlib" "/opt/rustwide/target/debug/deps/libidna-9a1c8b92c5c741f1.rlib" "/opt/rustwide/target/debug/deps/libunicode_normalization-2c2c8d7ad91531b3.rlib" "/opt/rustwide/target/debug/deps/libunicode_bidi-7e8075a07f0e5422.rlib" "/opt/rustwide/target/debug/deps/libmatches-5499bb0a916b29b9.rlib" "/opt/rustwide/target/debug/deps/liblibc-a1242cd790f47890.rlib" "/opt/rustwide/target/debug/deps/libcolored-e241c92d1b661336.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-d3117d55fc9645e9.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.rlib" "-Wl,-Bdynamic" "-lssl" "-lcrypto" "-lz" "-lutil" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libcurl_sys-e08a36cb7682660f.rlib(libcurl_la-version.o): in function `brotli_version':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/curl-sys-0.4.8/curl/lib/version.c:93: undefined reference to `BrotliDecoderVersion'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libcurl_sys-e08a36cb7682660f.rlib(libcurl_la-version.o): in function `curl_version_info':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/curl-sys-0.4.8/curl/lib/version.c:447: undefined reference to `BrotliDecoderVersion'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gf`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "5e7235d223b6b43da20bb8163acc0f7702304b491370e2ceed078ffc80a28557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e7235d223b6b43da20bb8163acc0f7702304b491370e2ceed078ffc80a28557", kill_on_drop: false }`
[INFO] [stdout] 5e7235d223b6b43da20bb8163acc0f7702304b491370e2ceed078ffc80a28557