[INFO] cloning repository https://github.com/R4chel/art-tools
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/R4chel/art-tools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FR4chel%2Fart-tools", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FR4chel%2Fart-tools'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ece1245722f2139554875a68df5ecf171d5bd981
[INFO] checking R4chel/art-tools against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FR4chel%2Fart-tools" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/R4chel/art-tools
[INFO] finished tweaking git repo https://github.com/R4chel/art-tools
[INFO] tweaked toml for git repo https://github.com/R4chel/art-tools written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/R4chel/art-tools on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/R4chel/art-tools 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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62169e7297f88e2348e647b7d367cb5e28c074e9880b1f62720280a92496e89b
[INFO] running `Command { std: "docker" "start" "-a" "62169e7297f88e2348e647b7d367cb5e28c074e9880b1f62720280a92496e89b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62169e7297f88e2348e647b7d367cb5e28c074e9880b1f62720280a92496e89b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62169e7297f88e2348e647b7d367cb5e28c074e9880b1f62720280a92496e89b", kill_on_drop: false }`
[INFO] [stdout] 62169e7297f88e2348e647b7d367cb5e28c074e9880b1f62720280a92496e89b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dfbe6925a6e28509211e3f5c9dc75df929ec9efc08345ef3ea60f941d5b19e7
[INFO] running `Command { std: "docker" "start" "-a" "2dfbe6925a6e28509211e3f5c9dc75df929ec9efc08345ef3ea60f941d5b19e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling unicode-general-category v0.4.0
[INFO] [stderr]     Checking ttf-parser v0.12.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking deflate v0.9.1
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]     Checking unicode-bidi-mirroring v0.1.0
[INFO] [stderr]     Checking unicode-script v0.5.3
[INFO] [stderr]     Checking unicode-ccc v0.1.2
[INFO] [stderr]     Checking siphasher v0.3.6
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]     Checking simplecss v0.2.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking kurbo v0.8.0
[INFO] [stderr]     Checking rctree v0.4.0
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking svgtypes v0.6.0
[INFO] [stderr]     Checking roxmltree v0.14.1
[INFO] [stderr]     Checking pico-args v0.4.2
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking svgfilters v0.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking png v0.17.0
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking fontdb v0.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking tiny-skia v0.6.0
[INFO] [stderr]     Checking rustybuzz v0.4.0
[INFO] [stdout] error[E0659]: `Class` is ambiguous
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustybuzz-0.4.0/src/tables/gpos.rs:584:16
[INFO] [stdout]     |
[INFO] [stdout] 584 |     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-1949cf8c6b5b557f/rustybuzz-0.4.0/src/tables/gpos.rs:8:5
[INFO] [stdout]     |
[INFO] [stdout]   8 | 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-1949cf8c6b5b557f/rustybuzz-0.4.0/src/tables/gpos.rs:7:5
[INFO] [stdout]     |
[INFO] [stdout]   7 | use super::gsubgpos::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Class` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustybuzz` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2dfbe6925a6e28509211e3f5c9dc75df929ec9efc08345ef3ea60f941d5b19e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dfbe6925a6e28509211e3f5c9dc75df929ec9efc08345ef3ea60f941d5b19e7", kill_on_drop: false }`
[INFO] [stdout] 2dfbe6925a6e28509211e3f5c9dc75df929ec9efc08345ef3ea60f941d5b19e7