[INFO] cloning repository https://github.com/timofeev1995/rust-chess-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timofeev1995/rust-chess-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimofeev1995%2Frust-chess-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimofeev1995%2Frust-chess-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be815cfa32da57ab93cfbd808c5c65e50696aca3
[INFO] checking timofeev1995/rust-chess-sandbox/be815cfa32da57ab93cfbd808c5c65e50696aca3 against master#c8551d3c63c51f290cf1dc9dc4714249ea849fd1 for pr-148946
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimofeev1995%2Frust-chess-sandbox" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/timofeev1995/rust-chess-sandbox
[INFO] finished tweaking git repo https://github.com/timofeev1995/rust-chess-sandbox
[INFO] tweaked toml for git repo https://github.com/timofeev1995/rust-chess-sandbox written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/timofeev1995/rust-chess-sandbox on toolchain c8551d3c63c51f290cf1dc9dc4714249ea849fd1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/timofeev1995/rust-chess-sandbox 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" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sctk-adwaita v0.5.3
[INFO] [stderr]   Downloaded tiny-skia-path v0.8.3
[INFO] [stderr]   Downloaded chlorine v1.0.10
[INFO] [stderr]   Downloaded foreign-types-macros v0.2.2
[INFO] [stderr]   Downloaded tiny-skia v0.8.3
[INFO] [stderr]   Downloaded imgui v0.10.0
[INFO] [stderr]   Downloaded imgui-winit-support v0.10.0
[INFO] [stderr]   Downloaded imgui-glium-renderer v0.10.0
[INFO] [stderr]   Downloaded imgui-sys v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26840a2fa6f929d5e402b0a9dec431f23b4445379e159618ed6bec497bf2ac00
[INFO] running `Command { std: "docker" "start" "-a" "26840a2fa6f929d5e402b0a9dec431f23b4445379e159618ed6bec497bf2ac00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26840a2fa6f929d5e402b0a9dec431f23b4445379e159618ed6bec497bf2ac00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26840a2fa6f929d5e402b0a9dec431f23b4445379e159618ed6bec497bf2ac00", kill_on_drop: false }`
[INFO] [stdout] 26840a2fa6f929d5e402b0a9dec431f23b4445379e159618ed6bec497bf2ac00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d4fc224eb5c60792cb19681ba5ed527167426c82a38f5d94988ddcabdaa8470
[INFO] running `Command { std: "docker" "start" "-a" "9d4fc224eb5c60792cb19681ba5ed527167426c82a38f5d94988ddcabdaa8470", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]     Checking png v0.17.7
[INFO] [stderr]    Compiling crossfont v0.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]     Checking foreign-types-shared v0.3.1
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking tiny-skia-path v0.7.0
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking raw-window-handle v0.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling rayon-core v1.10.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]    Compiling imgui-sys v0.10.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking chlorine v1.0.10
[INFO] [stderr]     Checking freetype-rs v0.26.0
[INFO] [stderr]     Checking tiny-skia v0.7.0
[INFO] [stderr]     Checking mint v0.5.9
[INFO] [stderr]     Checking strict-num v0.1.0
[INFO] [stderr]     Checking servo-fontconfig v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking ttf-parser v0.18.1
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]     Checking wayland-commons v0.29.5
[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" "9d4fc224eb5c60792cb19681ba5ed527167426c82a38f5d94988ddcabdaa8470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d4fc224eb5c60792cb19681ba5ed527167426c82a38f5d94988ddcabdaa8470", kill_on_drop: false }`
[INFO] [stdout] 9d4fc224eb5c60792cb19681ba5ed527167426c82a38f5d94988ddcabdaa8470