[INFO] fetching crate qr-gen 1.0.1...
[INFO] checking qr-gen-1.0.1 against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] extracting crate qr-gen 1.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate qr-gen 1.0.1
[INFO] finished tweaking crates.io crate qr-gen 1.0.1
[INFO] tweaked toml for crates.io crate qr-gen 1.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qr-gen 1.0.1 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 qr-gen 1.0.1 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-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6af3755448e2a1bf5409e4d253519b72131256c0c3197a8c914e14181022519
[INFO] running `Command { std: "docker" "start" "-a" "e6af3755448e2a1bf5409e4d253519b72131256c0c3197a8c914e14181022519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6af3755448e2a1bf5409e4d253519b72131256c0c3197a8c914e14181022519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6af3755448e2a1bf5409e4d253519b72131256c0c3197a8c914e14181022519", kill_on_drop: false }`
[INFO] [stdout] e6af3755448e2a1bf5409e4d253519b72131256c0c3197a8c914e14181022519
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb84215436d8778c45499b3e1bf61a39ab70d09f66f6c6989dc872767a807216
[INFO] running `Command { std: "docker" "start" "-a" "eb84215436d8778c45499b3e1bf61a39ab70d09f66f6c6989dc872767a807216", kill_on_drop: false }`
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling unicode-general-category v0.2.0
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking ttf-parser v0.9.0
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking unicode-script v0.5.2
[INFO] [stderr]     Checking unicode-ccc v0.1.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking unicode-bidi-mirroring v0.1.0
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking wide v0.6.4
[INFO] [stderr]     Checking svgtypes v0.5.0
[INFO] [stderr]     Checking simplecss v0.2.0
[INFO] [stderr]     Checking roxmltree v0.13.1
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]     Checking kurbo v0.7.1
[INFO] [stderr]     Checking fontdb v0.5.1
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking qrcodegen v1.6.0
[INFO] [stderr]     Checking svgfilters v0.2.0
[INFO] [stderr]     Checking rustybuzz v0.3.0
[INFO] [stdout] error[E0659]: `Class` is ambiguous
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/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-1949cf8c6b5b557f/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-1949cf8c6b5b557f/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 tiny-skia v0.3.0
[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] running `Command { std: "docker" "inspect" "eb84215436d8778c45499b3e1bf61a39ab70d09f66f6c6989dc872767a807216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb84215436d8778c45499b3e1bf61a39ab70d09f66f6c6989dc872767a807216", kill_on_drop: false }`
[INFO] [stdout] eb84215436d8778c45499b3e1bf61a39ab70d09f66f6c6989dc872767a807216