[INFO] fetching crate polystrip 0.6.0...
[INFO] checking polystrip-0.6.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate polystrip 0.6.0 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate polystrip 0.6.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polystrip 0.6.0
[INFO] finished tweaking crates.io crate polystrip 0.6.0
[INFO] tweaked toml for crates.io crate polystrip 0.6.0 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate crates.io crate polystrip 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dlib v0.4.2
[INFO] [stderr]   Downloaded x11-dl v2.18.5
[INFO] [stderr]   Downloaded libloading v0.6.3
[INFO] [stderr]   Downloaded ttf-parser v0.6.2
[INFO] [stderr]   Downloaded rayon-core v1.8.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.69
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.69
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.7.0
[INFO] [stderr]   Downloaded naga v0.3.2
[INFO] [stderr]   Downloaded d3d12 v0.3.2
[INFO] [stderr]   Downloaded copyless v0.1.5
[INFO] [stderr]   Downloaded wayland-sys v0.28.0
[INFO] [stderr]   Downloaded align-data v0.1.0
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.7.0
[INFO] [stderr]   Downloaded gfx-auxil v0.8.0
[INFO] [stderr]   Downloaded num-rational v0.3.0
[INFO] [stderr]   Downloaded weezl v0.1.1
[INFO] [stderr]   Downloaded ndk v0.2.0
[INFO] [stderr]   Downloaded wayland-cursor v0.28.0
[INFO] [stderr]   Downloaded wayland-protocols v0.28.0
[INFO] [stderr]   Downloaded syn v1.0.53
[INFO] [stderr]   Downloaded line_drawing v0.8.0
[INFO] [stderr]   Downloaded gfx-backend-empty v0.7.0
[INFO] [stderr]   Downloaded gfx-backend-metal v0.7.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.69
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]   Downloaded png v0.16.7
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.12.0
[INFO] [stderr]   Downloaded wayland-client v0.28.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.69
[INFO] [stderr]   Downloaded inplace_it v0.3.3
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.4
[INFO] [stderr]   Downloaded num-iter v0.1.41
[INFO] [stderr]   Downloaded image v0.23.10
[INFO] [stderr]   Downloaded proc-macro2 v1.0.23
[INFO] [stderr]   Downloaded rayon v1.4.1
[INFO] [stderr]   Downloaded ash v0.31.0
[INFO] [stderr]   Downloaded mint v0.5.6
[INFO] [stderr]   Downloaded storage-map v0.3.0
[INFO] [stderr]   Downloaded js-sys v0.3.46
[INFO] [stderr]   Downloaded gfx-hal v0.7.0
[INFO] [stderr]   Downloaded range-alloc v0.1.1
[INFO] [stderr]   Downloaded gpu-alloc v0.3.0
[INFO] [stderr]   Downloaded gpu-alloc-types v0.2.0
[INFO] [stderr]   Downloaded metal v0.21.0
[INFO] [stderr]   Downloaded gpu-alloc-gfx v0.3.0
[INFO] [stderr]   Downloaded gif v0.11.1
[INFO] [stderr]   Downloaded tiff v0.5.0
[INFO] [stderr]   Downloaded wayland-scanner v0.28.0
[INFO] [stderr]   Downloaded spirv_cross v0.23.1
[INFO] [stderr]   Downloaded ndk-glue v0.2.0
[INFO] [stderr]   Downloaded rusttype v0.9.2
[INFO] [stderr]   Downloaded calloop v0.6.4
[INFO] [stderr]   Downloaded cocoa v0.23.0
[INFO] [stderr]   Downloaded objc_exception v0.1.2
[INFO] [stderr]   Downloaded ab_glyph_rasterizer v0.1.3
[INFO] [stderr]   Downloaded andrew v0.3.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.20
[INFO] [stderr]   Downloaded wayland-commons v0.28.0
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.1
[INFO] [stderr]   Downloaded xcursor v0.3.2
[INFO] [stderr]   Downloaded core-graphics-types v0.1.1
[INFO] [stderr]   Downloaded core-graphics v0.22.1
[INFO] [stderr]   Downloaded core-video-sys v0.1.4
[INFO] [stderr]   Downloaded downcast-rs v1.2.0
[INFO] [stderr]   Downloaded ndk-sys v0.2.0
[INFO] [stderr]   Downloaded cocoa-foundation v0.1.0
[INFO] [stderr]   Downloaded dispatch v0.2.0
[INFO] [stderr]   Downloaded raw-window-handle v0.3.3
[INFO] [stderr]   Downloaded num-traits v0.1.43
[INFO] [stderr]   Downloaded cc v1.0.60
[INFO] [stderr]   Downloaded owned_ttf_parser v0.6.0
[INFO] [stderr]   Downloaded xdg v2.2.0
[INFO] [stderr]   Downloaded winit v0.23.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb8b2cc6922a369eff905135743f5db465728324ad73935aa755c3550bf3a68b
[INFO] running `Command { std: "docker" "start" "-a" "fb8b2cc6922a369eff905135743f5db465728324ad73935aa755c3550bf3a68b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb8b2cc6922a369eff905135743f5db465728324ad73935aa755c3550bf3a68b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8b2cc6922a369eff905135743f5db465728324ad73935aa755c3550bf3a68b", kill_on_drop: false }`
[INFO] [stdout] fb8b2cc6922a369eff905135743f5db465728324ad73935aa755c3550bf3a68b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9307de5f8e176249ee36687f3431535bb1388acf1d843d15eb4f64ab45db105e
[INFO] running `Command { std: "docker" "start" "-a" "9307de5f8e176249ee36687f3431535bb1388acf1d843d15eb4f64ab45db105e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "9307de5f8e176249ee36687f3431535bb1388acf1d843d15eb4f64ab45db105e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9307de5f8e176249ee36687f3431535bb1388acf1d843d15eb4f64ab45db105e", kill_on_drop: false }`
[INFO] [stdout] 9307de5f8e176249ee36687f3431535bb1388acf1d843d15eb4f64ab45db105e