[INFO] cloning repository https://github.com/cmaves/collage-bg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cmaves/collage-bg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmaves%2Fcollage-bg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmaves%2Fcollage-bg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 922a814410013cd737eed0b6ce2133ebd1cb9bcf
[INFO] testing cmaves/collage-bg against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmaves%2Fcollage-bg" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cmaves/collage-bg 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 git repo https://github.com/cmaves/collage-bg
[INFO] finished tweaking git repo https://github.com/cmaves/collage-bg
[INFO] tweaked toml for git repo https://github.com/cmaves/collage-bg written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/cmaves/collage-bg 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] [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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 654f577d45a5731b96eb85456f4b5e5564b8222e03bc81e3872509f392d8c275
[INFO] running `Command { std: "docker" "start" "-a" "654f577d45a5731b96eb85456f4b5e5564b8222e03bc81e3872509f392d8c275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "654f577d45a5731b96eb85456f4b5e5564b8222e03bc81e3872509f392d8c275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "654f577d45a5731b96eb85456f4b5e5564b8222e03bc81e3872509f392d8c275", kill_on_drop: false }`
[INFO] [stdout] 654f577d45a5731b96eb85456f4b5e5564b8222e03bc81e3872509f392d8c275
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 05db6c045f844982526e28bbd7846f8714a2dcdd4cf222c5f4c3311c5d5ce16c
[INFO] running `Command { std: "docker" "start" "-a" "05db6c045f844982526e28bbd7846f8714a2dcdd4cf222c5f4c3311c5d5ce16c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling aho-corasick v0.7.9
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling png v0.15.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling image v0.22.5
[INFO] [stderr]    Compiling bg-setter v0.1.0 (https://github.com/cmaves/bg-setter#56ee92f8)
[INFO] [stderr]    Compiling collage-bg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SliceRandom`
[INFO] [stdout]  --> src/lib.rs:2:46
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::prelude::{thread_rng,ThreadRng,Rng,SliceRandom};
[INFO] [stdout]   |                                              ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DirEntry`
[INFO] [stdout]  --> src/lib.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs::{DirEntry,read_dir};
[INFO] [stdout]   |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `xcb::ConnError`
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use xcb::ConnError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:23:3
[INFO] [stdout]    |
[INFO] [stdout] 23 |         cg.replace_random(count % cg.lens());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.collage_bg.28b6640a-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/collage_bg-9b042c1efa3963c6.zpxokcqtanichxk.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/libcollage_bg-cd5ca238b22c0135.rlib" "/opt/rustwide/target/debug/deps/libregex-5b56e8ea8f4bcbbc.rlib" "/opt/rustwide/target/debug/deps/libthread_local-2691e1649196a294.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-7107e72f91dd3caa.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-e9a8f59681d40b81.rlib" "/opt/rustwide/target/debug/deps/libmemchr-26b0e7e929d29953.rlib" "/opt/rustwide/target/debug/deps/librand-d986944cd8d9574c.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-1274eaf43988f6ed.rlib" "/opt/rustwide/target/debug/deps/libc2_chacha-7a313679eedd7821.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-848d201262c9fe6e.rlib" "/opt/rustwide/target/debug/deps/librand_core-ca599f1f25460ae4.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-4bd51fcbe754685d.rlib" "/opt/rustwide/target/debug/deps/libbg_setter-573652477a9df821.rlib" "/opt/rustwide/target/debug/deps/libimage-daa3e4c0ff0d8cc7.rlib" "/opt/rustwide/target/debug/deps/libtiff-d2f11efd156ed2cf.rlib" "/opt/rustwide/target/debug/deps/libpng-0e5bb58218bf877a.rlib" "/opt/rustwide/target/debug/deps/libdeflate-c57c02e4d66f0fa7.rlib" "/opt/rustwide/target/debug/deps/libinflate-e150108e90605252.rlib" "/opt/rustwide/target/debug/deps/libadler32-22301400996dfe19.rlib" "/opt/rustwide/target/debug/deps/libcrc32fast-094aa23f2b9090e9.rlib" "/opt/rustwide/target/debug/deps/libbitflags-603a79344a96ee73.rlib" "/opt/rustwide/target/debug/deps/libjpeg_decoder-0c38693b835ed229.rlib" "/opt/rustwide/target/debug/deps/librayon-d7e6bd1870a985bd.rlib" "/opt/rustwide/target/debug/deps/librayon_core-be7facaef99a7d09.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-4890c83c5b2f6c13.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_queue-6c3120e7b39b3cc5.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-2043ea7d8b21c923.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-9d01d98783779418.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-4b059ff10415273f.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-35af3bfbcb57cc41.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-c317c8196d2f12cd.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-535c06e7d7e0b10d.rlib" "/opt/rustwide/target/debug/deps/libeither-d161fd1a2ce5486b.rlib" "/opt/rustwide/target/debug/deps/libgif-f6546b2475525f0b.rlib" "/opt/rustwide/target/debug/deps/libcolor_quant-ca0f98f741dd9153.rlib" "/opt/rustwide/target/debug/deps/liblzw-ea9e0ef2ed832b20.rlib" "/opt/rustwide/target/debug/deps/libscoped_threadpool-90db2d7ec66c28e3.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-d3d77ad5e9355a39.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-eedca68823feb371.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-29564d502063e96e.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-a4374f59dfe4823f.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-c108165c88451b38.rlib" "/opt/rustwide/target/debug/deps/libxcb-a778f060932fd28a.rlib" "/opt/rustwide/target/debug/deps/liblog-bcc4b2832236425a.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-de9cbe0cb77e19a3.rlib" "/opt/rustwide/target/debug/deps/liblibc-95aa0a08595d25d7.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-f67718dd40129317.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" "-lxcb-image" "-lxcb" "-lxcb-randr" "-lxcb-render" "-lxcb-shm" "-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/collage_bg-9b042c1efa3963c6" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lxcb-image
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `collage-bg` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "05db6c045f844982526e28bbd7846f8714a2dcdd4cf222c5f4c3311c5d5ce16c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05db6c045f844982526e28bbd7846f8714a2dcdd4cf222c5f4c3311c5d5ce16c", kill_on_drop: false }`
[INFO] [stdout] 05db6c045f844982526e28bbd7846f8714a2dcdd4cf222c5f4c3311c5d5ce16c