[INFO] cloning repository https://github.com/blockth/rust-snake-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blockth/rust-snake-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblockth%2Frust-snake-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblockth%2Frust-snake-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af64cf989912cec52e9a0da9ea88c9d2cd1e7252
[INFO] checking blockth/rust-snake-game against try#f77b5bc6c7c84df104f86b0dd01d9490e3923fa8 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblockth%2Frust-snake-game" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/blockth/rust-snake-game
[INFO] finished tweaking git repo https://github.com/blockth/rust-snake-game
[INFO] tweaked toml for git repo https://github.com/blockth/rust-snake-game written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/blockth/rust-snake-game on toolchain f77b5bc6c7c84df104f86b0dd01d9490e3923fa8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/blockth/rust-snake-game 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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "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 piston_window v0.124.0
[INFO] [stderr]   Downloaded pistoncore-input v1.0.1
[INFO] [stderr]   Downloaded piston-float v1.0.1
[INFO] [stderr]   Downloaded net2 v0.2.38
[INFO] [stderr]   Downloaded piston-graphics_api_version v1.0.1
[INFO] [stderr]   Downloaded piston-shaders_graphics2d v0.4.0
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.53.1
[INFO] [stderr]   Downloaded spin_sleep v1.1.1
[INFO] [stderr]   Downloaded half v2.1.0
[INFO] [stderr]   Downloaded piston v0.53.1
[INFO] [stderr]   Downloaded piston2d-graphics v0.42.0
[INFO] [stderr]   Downloaded pistoncore-window v0.47.1
[INFO] [stderr]   Downloaded piston-gfx_texture v0.42.0
[INFO] [stderr]   Downloaded exr v1.5.2
[INFO] [stderr]   Downloaded png v0.17.6
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.70.1
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.76.0
[INFO] [stderr]   Downloaded gl v0.13.0
[INFO] [stderr]   Downloaded piston-viewport v1.0.2
[INFO] [stderr]   Downloaded image v0.24.4
[INFO] [stderr]   Downloaded tiff v0.7.3
[INFO] [stderr]   Downloaded jpeg-decoder v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa46326d7a97801dc93e348eab4afe82d45e41516c626175681d6c21de8f17ab
[INFO] running `Command { std: "docker" "start" "-a" "fa46326d7a97801dc93e348eab4afe82d45e41516c626175681d6c21de8f17ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa46326d7a97801dc93e348eab4afe82d45e41516c626175681d6c21de8f17ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa46326d7a97801dc93e348eab4afe82d45e41516c626175681d6c21de8f17ab", kill_on_drop: false }`
[INFO] [stdout] fa46326d7a97801dc93e348eab4afe82d45e41516c626175681d6c21de8f17ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb66baaf912290e240efdf433ca6a14f2211c589f19eea0c0757455772a3f48f
[INFO] running `Command { std: "docker" "start" "-a" "fb66baaf912290e240efdf433ca6a14f2211c589f19eea0c0757455772a3f48f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]     Checking piston-float v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.7
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.1
[INFO] [stderr]     Checking rayon v1.5.3
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 nanorand v0.7.0
[INFO] [stderr]     Checking xdg v2.4.1
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking piston-viewport v1.0.2
[INFO] [stderr]     Checking net2 v0.2.38
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fb66baaf912290e240efdf433ca6a14f2211c589f19eea0c0757455772a3f48f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb66baaf912290e240efdf433ca6a14f2211c589f19eea0c0757455772a3f48f", kill_on_drop: false }`
[INFO] [stdout] fb66baaf912290e240efdf433ca6a14f2211c589f19eea0c0757455772a3f48f