[INFO] fetching crate vngine 0.1.0...
[INFO] checking vngine-0.1.0 against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] extracting crate vngine 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate vngine 0.1.0
[INFO] finished tweaking crates.io crate vngine 0.1.0
[INFO] tweaked toml for crates.io crate vngine 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vngine 0.1.0 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 crates.io crate vngine 0.1.0 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] 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] fe5822ba0d7c51827cd984fa0911e677433117773dfec1a7bed7c1eee1e21846
[INFO] running `Command { std: "docker" "start" "-a" "fe5822ba0d7c51827cd984fa0911e677433117773dfec1a7bed7c1eee1e21846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe5822ba0d7c51827cd984fa0911e677433117773dfec1a7bed7c1eee1e21846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe5822ba0d7c51827cd984fa0911e677433117773dfec1a7bed7c1eee1e21846", kill_on_drop: false }`
[INFO] [stdout] fe5822ba0d7c51827cd984fa0911e677433117773dfec1a7bed7c1eee1e21846
[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] 7f4d6fc0cef6ee2ec9fb8d40c569747adc4f58bea7b41c1e8ea8f736f68ef7c9
[INFO] running `Command { std: "docker" "start" "-a" "7f4d6fc0cef6ee2ec9fb8d40c569747adc4f58bea7b41c1e8ea8f736f68ef7c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling pkg-config v0.3.20
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling nom v7.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking minimal-lexical v0.1.3
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking instant v0.1.11
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking ttf-parser v0.12.3
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling winit v0.25.0
[INFO] [stderr]     Checking unicode-script v0.5.3
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]     Checking imgref v1.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking lru v0.6.6
[INFO] [stderr]    Compiling pns v0.8.0
[INFO] [stderr]     Checking glow v0.11.0
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking gapp v0.1.0
[INFO] [stderr]     Checking simple-color v0.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking kv-parser v0.1.0
[INFO] [stderr]     Checking resource v0.5.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking owned_ttf_parser v0.12.1
[INFO] [stderr]     Checking rustybuzz v0.4.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[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]     Checking mio-misc v1.2.1
[INFO] [stderr]     Checking xcursor v0.3.4
[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" "7f4d6fc0cef6ee2ec9fb8d40c569747adc4f58bea7b41c1e8ea8f736f68ef7c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f4d6fc0cef6ee2ec9fb8d40c569747adc4f58bea7b41c1e8ea8f736f68ef7c9", kill_on_drop: false }`
[INFO] [stdout] 7f4d6fc0cef6ee2ec9fb8d40c569747adc4f58bea7b41c1e8ea8f736f68ef7c9