[INFO] cloning repository https://github.com/yuyttenhove/rust-gpu-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuyttenhove/rust-gpu-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuyttenhove%2Frust-gpu-experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuyttenhove%2Frust-gpu-experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1807e58451c5a0bf53471ae8030337582408528
[INFO] checking yuyttenhove/rust-gpu-experiments against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuyttenhove%2Frust-gpu-experiments" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuyttenhove/rust-gpu-experiments on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/yuyttenhove/rust-gpu-experiments
[INFO] finished tweaking git repo https://github.com/yuyttenhove/rust-gpu-experiments
[INFO] tweaked toml for git repo https://github.com/yuyttenhove/rust-gpu-experiments written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yuyttenhove/rust-gpu-experiments 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/EmbarkStudios/rust-gpu`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spirv-std-types v0.6.1
[INFO] [stderr]   Downloaded spirv-std-macros v0.6.1
[INFO] [stderr]   Downloaded raw-string v0.3.5
[INFO] [stderr]   Downloaded spirv-std v0.6.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.22
[INFO] [stderr]   Downloaded elsa v1.8.1
[INFO] [stderr]   Downloaded sanitize-filename v0.4.0
[INFO] [stderr]   Downloaded spirv-tools v0.9.0
[INFO] [stderr]   Downloaded ar v0.9.0
[INFO] [stderr]   Downloaded rspirv v0.11.0+1.5.4
[INFO] [stderr]   Downloaded serde_json v1.0.95
[INFO] [stderr]   Downloaded ash v0.37.2+1.3.238
[INFO] [stderr]   Downloaded naga v0.11.0
[INFO] [stderr]   Downloaded spirt v0.1.0
[INFO] [stderr]   Downloaded syn v2.0.14
[INFO] [stderr]   Downloaded glow v0.12.1
[INFO] [stderr]   Downloaded spirv-tools-sys v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2833a60d0c0bc47c62a4e963f3f38923c53e5e4114b3885d9ea4b2370ae3faa
[INFO] running `Command { std: "docker" "start" "-a" "f2833a60d0c0bc47c62a4e963f3f38923c53e5e4114b3885d9ea4b2370ae3faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2833a60d0c0bc47c62a4e963f3f38923c53e5e4114b3885d9ea4b2370ae3faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2833a60d0c0bc47c62a4e963f3f38923c53e5e4114b3885d9ea4b2370ae3faa", kill_on_drop: false }`
[INFO] [stdout] f2833a60d0c0bc47c62a4e963f3f38923c53e5e4114b3885d9ea4b2370ae3faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b10fe552b5cdb07ef54a4568c24e3d1cabac767a6cc4ad84d9a80564db79a319
[INFO] running `Command { std: "docker" "start" "-a" "b10fe552b5cdb07ef54a4568c24e3d1cabac767a6cc4ad84d9a80564db79a319", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking num-traits v0.2.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling ash v0.37.2+1.3.238
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.1
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking gpu-alloc-types v0.2.0
[INFO] [stderr]     Checking raw-window-handle v0.5.2
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking hexf-parse v0.2.1
[INFO] [stderr]     Checking gpu-alloc v0.5.3
[INFO] [stderr]     Checking wgpu-types v0.15.2
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking renderdoc-sys v0.7.1
[INFO] [stderr]     Checking glow v0.12.1
[INFO] [stderr]     Checking profiling v1.0.7
[INFO] [stderr]     Checking regex v1.7.3
[INFO] [stderr]     Checking slotmap v1.0.6
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]     Checking strict-num v0.1.0
[INFO] [stderr]     Checking owned_ttf_parser v0.18.1
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b10fe552b5cdb07ef54a4568c24e3d1cabac767a6cc4ad84d9a80564db79a319", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b10fe552b5cdb07ef54a4568c24e3d1cabac767a6cc4ad84d9a80564db79a319", kill_on_drop: false }`
[INFO] [stdout] b10fe552b5cdb07ef54a4568c24e3d1cabac767a6cc4ad84d9a80564db79a319