[INFO] cloning repository https://github.com/prithivirajmurugan/rsnake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/prithivirajmurugan/rsnake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprithivirajmurugan%2Frsnake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprithivirajmurugan%2Frsnake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7b33a983af4c41e1548934b2aa534b543370892
[INFO] checking prithivirajmurugan/rsnake against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprithivirajmurugan%2Frsnake" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/prithivirajmurugan/rsnake 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] started tweaking git repo https://github.com/prithivirajmurugan/rsnake
[INFO] finished tweaking git repo https://github.com/prithivirajmurugan/rsnake
[INFO] tweaked toml for git repo https://github.com/prithivirajmurugan/rsnake written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/prithivirajmurugan/rsnake 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]  Downloading crates ...
[INFO] [stderr]   Downloaded piston2d-graphics v0.43.0
[INFO] [stderr]   Downloaded piston-gfx_texture v0.44.0
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.79.0
[INFO] [stderr]   Downloaded piston_window v0.128.0
[INFO] [stderr]   Downloaded toml_edit v0.19.4
[INFO] [stderr]   Downloaded glutin v0.30.6
[INFO] [stderr]   Downloaded winnow v0.3.3
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.71.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a3ededa709562fb4cb64304cd070a54fb2ce0dd77b4a30e101ca5f67b3d478fd
[INFO] running `Command { std: "docker" "start" "-a" "a3ededa709562fb4cb64304cd070a54fb2ce0dd77b4a30e101ca5f67b3d478fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3ededa709562fb4cb64304cd070a54fb2ce0dd77b4a30e101ca5f67b3d478fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3ededa709562fb4cb64304cd070a54fb2ce0dd77b4a30e101ca5f67b3d478fd", kill_on_drop: false }`
[INFO] [stdout] a3ededa709562fb4cb64304cd070a54fb2ce0dd77b4a30e101ca5f67b3d478fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ea23d644601e71645dacc1806d313677377d59578550f73b8e93a8fb4b9ac3ee
[INFO] running `Command { std: "docker" "start" "-a" "ea23d644601e71645dacc1806d313677377d59578550f73b8e93a8fb4b9ac3ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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]     Checking flate2 v1.0.25
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking bytemuck v1.13.1
[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" "ea23d644601e71645dacc1806d313677377d59578550f73b8e93a8fb4b9ac3ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea23d644601e71645dacc1806d313677377d59578550f73b8e93a8fb4b9ac3ee", kill_on_drop: false }`
[INFO] [stdout] ea23d644601e71645dacc1806d313677377d59578550f73b8e93a8fb4b9ac3ee