[INFO] cloning repository https://github.com/derekdreery/mdview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derekdreery/mdview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fmdview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fmdview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1430955a26b04fd7376f3281c2208d55d42d500
[INFO] testing derekdreery/mdview against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fmdview" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/derekdreery/mdview on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/derekdreery/mdview
[INFO] finished tweaking git repo https://github.com/derekdreery/mdview
[INFO] tweaked toml for git repo https://github.com/derekdreery/mdview written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/derekdreery/mdview already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3778ed94d70599673c3dbd516614e3f045411982786fc7a94853b2bee38679b
[INFO] running `Command { std: "docker" "start" "-a" "a3778ed94d70599673c3dbd516614e3f045411982786fc7a94853b2bee38679b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3778ed94d70599673c3dbd516614e3f045411982786fc7a94853b2bee38679b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3778ed94d70599673c3dbd516614e3f045411982786fc7a94853b2bee38679b", kill_on_drop: false }`
[INFO] [stdout] a3778ed94d70599673c3dbd516614e3f045411982786fc7a94853b2bee38679b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9f65051c699feac3d43ca225ae110b0feefceaa2bc3efe10347197982922382
[INFO] running `Command { std: "docker" "start" "-a" "e9f65051c699feac3d43ca225ae110b0feefceaa2bc3efe10347197982922382", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling gio v0.9.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]    Compiling pangocairo v0.10.0
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling xi-unicode v0.3.0
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling pathdiff v0.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling gtk v0.9.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling line-wrap v0.1.1
[INFO] [stderr]    Compiling type-map v0.4.0
[INFO] [stderr]    Compiling open v2.0.0
[INFO] [stderr]    Compiling unic-ucd-bidi v0.9.0
[INFO] [stderr]    Compiling keyboard-types v0.5.0
[INFO] [stderr]    Compiling intl_pluralrules v7.0.1
[INFO] [stderr]    Compiling fluent-langneg v0.13.0
[INFO] [stderr]    Compiling intl-memoizer v0.5.1
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling kurbo v0.8.1
[INFO] [stderr]    Compiling unic-bidi v0.9.0
[INFO] [stderr]    Compiling onig_sys v69.7.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling piet v0.4.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling plist v1.2.1
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling onig v6.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling ouroboros_macro v0.9.5
[INFO] [stderr]    Compiling druid-derive v0.4.0 (https://github.com/linebender/druid#1d61892d)
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling fluent-syntax v0.11.0
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling gio-sys v0.10.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling pangocairo-sys v0.11.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling ouroboros v0.9.5
[INFO] [stderr]    Compiling tracing-subscriber v0.2.19
[INFO] [stderr]    Compiling fluent-bundle v0.15.1
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling glib v0.10.3
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling syntect v4.6.0
[INFO] [stderr]    Compiling piet-cairo v0.4.0
[INFO] [stderr]    Compiling piet-common v0.4.1
[INFO] [stderr]    Compiling druid-shell v0.7.0 (https://github.com/linebender/druid#1d61892d)
[INFO] [stderr]    Compiling druid v0.7.0 (https://github.com/linebender/druid#1d61892d)
[INFO] [stderr] error: could not compile `druid`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name druid --edition=2018 /opt/rustwide/cargo-home/git/checkouts/druid-f71533f3d81c0bc8/1d61892/druid/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="gtk"' -C metadata=993f3fec18ee2511 -C extra-filename=-993f3fec18ee2511 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern druid_derive=/opt/rustwide/target/debug/deps/libdruid_derive-3a2318370a32622d.so --extern druid_shell=/opt/rustwide/target/debug/deps/libdruid_shell-97861c5c880effbf.rmeta --extern fluent_bundle=/opt/rustwide/target/debug/deps/libfluent_bundle-61e1ee0c21b11b48.rmeta --extern fluent_langneg=/opt/rustwide/target/debug/deps/libfluent_langneg-5df78adf2749908b.rmeta --extern fluent_syntax=/opt/rustwide/target/debug/deps/libfluent_syntax-f0ff83ead6cda97b.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-d1dc8bedb5ffcb44.rmeta --extern instant=/opt/rustwide/target/debug/deps/libinstant-ee7479cae35b793e.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-bd58fac0ed386697.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-365056d31a0163a2.rmeta --extern unic_langid=/opt/rustwide/target/debug/deps/libunic_langid-f331f615e58c38c2.rmeta --extern unicode_segmentation=/opt/rustwide/target/debug/deps/libunicode_segmentation-6c95ab588f06b03b.rmeta --extern xi_unicode=/opt/rustwide/target/debug/deps/libxi_unicode-b75f3b7af6af5136.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e9f65051c699feac3d43ca225ae110b0feefceaa2bc3efe10347197982922382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f65051c699feac3d43ca225ae110b0feefceaa2bc3efe10347197982922382", kill_on_drop: false }`
[INFO] [stdout] e9f65051c699feac3d43ca225ae110b0feefceaa2bc3efe10347197982922382