[INFO] fetching crate mack 1.0.1...
[INFO] testing mack-1.0.1 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate mack 1.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mack 1.0.1 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-7/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ced3b0156cc869d4eae4d67a0b3e9dffe61f92489d1bf4b90a7a45815fac118e
[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" "ced3b0156cc869d4eae4d67a0b3e9dffe61f92489d1bf4b90a7a45815fac118e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ced3b0156cc869d4eae4d67a0b3e9dffe61f92489d1bf4b90a7a45815fac118e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ced3b0156cc869d4eae4d67a0b3e9dffe61f92489d1bf4b90a7a45815fac118e", kill_on_drop: false }`
[INFO] [stdout] ced3b0156cc869d4eae4d67a0b3e9dffe61f92489d1bf4b90a7a45815fac118e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cfc8345b4a0432792fe28f27a393b657f213281fceb864fe5e1a5da6f6e3679
[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" "2cfc8345b4a0432792fe28f27a393b657f213281fceb864fe5e1a5da6f6e3679", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling taglib-sys v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling taglib v1.0.0
[INFO] [stderr]    Compiling clap v2.33.1
[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-ded6adee7149f6c8.mack.ca669462-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.mack.ca669462-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8.jxbp57kk4xyt7lw.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libtaglib-23e3f5d99102a2e0.rlib" "/opt/rustwide/target/debug/deps/libtaglib_sys-a7ea5e0d1eb22058.rlib" "/opt/rustwide/target/debug/deps/libregex-54e9c9319cf93999.rlib" "/opt/rustwide/target/debug/deps/libthread_local-2691e1649196a294.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-0df309a68f60d4b0.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-0acdafe45947dd5d.rlib" "/opt/rustwide/target/debug/deps/libmemchr-26b0e7e929d29953.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-f67718dd40129317.rlib" "/opt/rustwide/target/debug/deps/libwalkdir-6419938b93314fa0.rlib" "/opt/rustwide/target/debug/deps/libsame_file-363d9c9b6ab85ccc.rlib" "/opt/rustwide/target/debug/deps/libclap-4539492ca6e2e316.rlib" "/opt/rustwide/target/debug/deps/libvec_map-97ca52e148358cd3.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-8a6bd19b879ced5e.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-57aec043958db3e8.rlib" "/opt/rustwide/target/debug/deps/libstrsim-4124e514b7a4f703.rlib" "/opt/rustwide/target/debug/deps/libbitflags-603a79344a96ee73.rlib" "/opt/rustwide/target/debug/deps/libatty-74ae31da606cbf78.rlib" "/opt/rustwide/target/debug/deps/liblibc-f4baf6f3425f6f2e.rlib" "/opt/rustwide/target/debug/deps/libansi_term-bd7b8ca88b2cc3f8.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9c44f1fe63de3edb.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-5dfdbb680ac299a1.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-353beaf877db2fdf.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-cd4abd33332d2d3f.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-3b908b5b50ddd80c.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-9cafd3521b5532d3.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-7b0935832903a9ac.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-8a349b13d67c76e3.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-9d41e7cb09eafd8e.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-095194fedb4c0ec4.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-968cf83f088269ec.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-e63bbb95a6beff5c.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-9f216e67c2916fa5.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-4688b763605c6a0e.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a9b2dc3244289321.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-52d5241975807511.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9924c22ae1efcf66.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-003d83a588984e1f.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/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/mack-ded6adee7149f6c8" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-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" "2cfc8345b4a0432792fe28f27a393b657f213281fceb864fe5e1a5da6f6e3679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cfc8345b4a0432792fe28f27a393b657f213281fceb864fe5e1a5da6f6e3679", kill_on_drop: false }`
[INFO] [stdout] 2cfc8345b4a0432792fe28f27a393b657f213281fceb864fe5e1a5da6f6e3679