[INFO] fetching crate mack 1.0.1...
[INFO] testing mack-1.0.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate mack 1.0.1 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate mack 1.0.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mack 1.0.1
[INFO] finished tweaking crates.io crate mack 1.0.1
[INFO] tweaked toml for crates.io crate mack 1.0.1 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate crates.io crate mack 1.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc3d23e9b60db55ed2ca978f4f35684e94be33cb556e8d48823b0e4d96ea247d
[INFO] running `Command { std: "docker" "start" "-a" "fc3d23e9b60db55ed2ca978f4f35684e94be33cb556e8d48823b0e4d96ea247d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc3d23e9b60db55ed2ca978f4f35684e94be33cb556e8d48823b0e4d96ea247d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc3d23e9b60db55ed2ca978f4f35684e94be33cb556e8d48823b0e4d96ea247d", kill_on_drop: false }`
[INFO] [stdout] fc3d23e9b60db55ed2ca978f4f35684e94be33cb556e8d48823b0e4d96ea247d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7990b8ad280ee8b3a09c270e901b4d05cd2ebbdf0fd53ad99686a6156df7c86
[INFO] running `Command { std: "docker" "start" "-a" "b7990b8ad280ee8b3a09c270e901b4d05cd2ebbdf0fd53ad99686a6156df7c86", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling taglib-sys v1.0.0
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling taglib v1.0.0
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling mack v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.mack.09e3bb0c-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384.u7b8wlzxin3aaae.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libtaglib-3d34facb59340524.rlib" "/opt/rustwide/target/debug/deps/libtaglib_sys-6c990bdd1f5d18d2.rlib" "/opt/rustwide/target/debug/deps/libregex-5091ac7b97f0121a.rlib" "/opt/rustwide/target/debug/deps/libthread_local-7b136cb51b93983e.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-39a47edb783c6a43.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-9b10e93aab7cbe7a.rlib" "/opt/rustwide/target/debug/deps/libmemchr-dab0d116dd56435e.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-b33cd6b8ee13db74.rlib" "/opt/rustwide/target/debug/deps/libwalkdir-cca34820a26a7d35.rlib" "/opt/rustwide/target/debug/deps/libsame_file-d3ddf74b396c2e8b.rlib" "/opt/rustwide/target/debug/deps/libclap-958f467d34c2e3da.rlib" "/opt/rustwide/target/debug/deps/libvec_map-dab3909866655c61.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-f6da55165abf0f4f.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-7222d6a8c557ea23.rlib" "/opt/rustwide/target/debug/deps/libstrsim-c0d73e3d44b574a0.rlib" "/opt/rustwide/target/debug/deps/libbitflags-6d05264d59b50f7f.rlib" "/opt/rustwide/target/debug/deps/libatty-3d7227ccab27bb41.rlib" "/opt/rustwide/target/debug/deps/liblibc-d5ac4e217bd71028.rlib" "/opt/rustwide/target/debug/deps/libansi_term-76ca62e328105e50.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-29e5e596e889a0aa.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-1b145d9fcdc08832.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-5b037ee6b77e2ff0.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9635a64fca0ebd28.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-a7574eb9bb7a8fc5.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-f5fa1dc334dcaeeb.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-6ee570a898e75ef0.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-afb62f29a0815772.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-a632746535fd9988.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-25acc307bcb1d7b6.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-377721a625f6ace7.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-43c01431c8a4ee6f.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5f74725679453254.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-2b35d8999819161d.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-a81f2980c3f58cf2.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-57b4679830289815.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-2a6a2797f7a73818.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-0e3656b1fda5fd7b.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-13b419dfbcf9c1f8.rlib" "-Wl,-Bdynamic" "-ltag_c" "-ltag" "-lutil" "-ldl" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/mack-c7cc7ad092cbe384" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -ltag_c
[INFO] [stdout]           /usr/bin/ld: cannot find -ltag
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mack` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b7990b8ad280ee8b3a09c270e901b4d05cd2ebbdf0fd53ad99686a6156df7c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7990b8ad280ee8b3a09c270e901b4d05cd2ebbdf0fd53ad99686a6156df7c86", kill_on_drop: false }`
[INFO] [stdout] b7990b8ad280ee8b3a09c270e901b4d05cd2ebbdf0fd53ad99686a6156df7c86