[INFO] cloning repository https://github.com/derekdreery/image-viewer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derekdreery/image-viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fimage-viewer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fimage-viewer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6de6f24cc586561c7726a677faf0557cb1af56f
[INFO] checking derekdreery/image-viewer against try#b1375b2484512d46eeace16657e5b4a5450c610b for pr-112743
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fimage-viewer" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/derekdreery/image-viewer on toolchain b1375b2484512d46eeace16657e5b4a5450c610b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/derekdreery/image-viewer
[INFO] finished tweaking git repo https://github.com/derekdreery/image-viewer
[INFO] tweaked toml for git repo https://github.com/derekdreery/image-viewer written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/derekdreery/image-viewer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73193c1add3d8d2830f9563e3c85c4f57ed52f0058737075e86f6b5082c6efe8
[INFO] running `Command { std: "docker" "start" "-a" "73193c1add3d8d2830f9563e3c85c4f57ed52f0058737075e86f6b5082c6efe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73193c1add3d8d2830f9563e3c85c4f57ed52f0058737075e86f6b5082c6efe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73193c1add3d8d2830f9563e3c85c4f57ed52f0058737075e86f6b5082c6efe8", kill_on_drop: false }`
[INFO] [stdout] 73193c1add3d8d2830f9563e3c85c4f57ed52f0058737075e86f6b5082c6efe8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff0533c3e96ab75b49407b31f3291ae8a855b53fc16b307616df2f6dc2c2095f
[INFO] running `Command { std: "docker" "start" "-a" "ff0533c3e96ab75b49407b31f3291ae8a855b53fc16b307616df2f6dc2c2095f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling cfg-expr v0.8.1
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]     Checking bytemuck v1.7.3
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling gio v0.14.8
[INFO] [stderr]     Checking kurbo v0.8.3
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking tinystr v0.3.4
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking unic-ucd-bidi v0.9.0
[INFO] [stderr]     Checking unic-langid-impl v0.9.0
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking unic-bidi v0.9.0
[INFO] [stderr]     Checking unic-langid v0.9.0
[INFO] [stderr]    Compiling unicode-general-category v0.2.0
[INFO] [stderr]    Compiling gtk v0.14.3
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking type-map v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap2 v0.2.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling druid-shell v0.7.0 (https://github.com/linebender/druid?rev=0a82b127eac325c9c721364a5d81f1bfd931cb13#0a82b127)
[INFO] [stderr]     Checking unicode-ccc v0.1.2
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking unicode-bidi-mirroring v0.1.0
[INFO] [stderr]     Checking unicode-script v0.5.4
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking ttf-parser v0.12.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking ttf-parser v0.9.0
[INFO] [stderr]     Checking roxmltree v0.14.1
[INFO] [stderr]     Checking svgtypes v0.5.0
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking intl-memoizer v0.5.1
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking fluent-langneg v0.13.0
[INFO] [stderr]     Checking intl_pluralrules v7.0.1
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking data-url v0.1.1
[INFO] [stderr]     Checking simplecss v0.2.1
[INFO] [stderr]     Checking time v0.3.5
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking keyboard-types v0.6.2
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]    Compiling field-offset v0.3.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking self_cell v0.10.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking pico-args v0.4.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking druid-material-icons v0.1.0
[INFO] [stderr]     Checking easings v0.1.0
[INFO] [stderr]     Checking fontdb v0.5.4
[INFO] [stderr]     Checking rustybuzz v0.3.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking notify v5.0.0-pre.13
[INFO] [stdout] error[E0659]: `Class` is ambiguous
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustybuzz-0.3.0/src/tables/gpos.rs:582:16
[INFO] [stdout]     |
[INFO] [stdout] 582 |     pub class: Class,
[INFO] [stdout]     |                ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Class` could refer to the struct imported here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustybuzz-0.3.0/src/tables/gpos.rs:6:5
[INFO] [stdout]     |
[INFO] [stdout] 6   | use super::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Class` to disambiguate
[INFO] [stdout] note: `Class` could also refer to the struct imported here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustybuzz-0.3.0/src/tables/gpos.rs:5:5
[INFO] [stdout]     |
[INFO] [stdout] 5   | use super::gsubgpos::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Class` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustybuzz` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ff0533c3e96ab75b49407b31f3291ae8a855b53fc16b307616df2f6dc2c2095f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff0533c3e96ab75b49407b31f3291ae8a855b53fc16b307616df2f6dc2c2095f", kill_on_drop: false }`
[INFO] [stdout] ff0533c3e96ab75b49407b31f3291ae8a855b53fc16b307616df2f6dc2c2095f