[INFO] cloning repository https://github.com/9mihoe/snek
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/9mihoe/snek" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F9mihoe%2Fsnek", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F9mihoe%2Fsnek'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 825173a9650d0543c97ce3a1a2404c02b7ac21c1
[INFO] checking 9mihoe/snek against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F9mihoe%2Fsnek" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/9mihoe/snek 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/9mihoe/snek
[INFO] finished tweaking git repo https://github.com/9mihoe/snek
[INFO] tweaked toml for git repo https://github.com/9mihoe/snek written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/9mihoe/snek 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 crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winnow v0.4.1
[INFO] [stderr]   Downloaded bracket-algorithm-traits v0.8.7
[INFO] [stderr]   Downloaded bracket-pathfinding v0.8.7
[INFO] [stderr]   Downloaded bracket-random v0.8.7
[INFO] [stderr]   Downloaded bracket-rex v0.8.7
[INFO] [stderr]   Downloaded send_wrapper v0.2.0
[INFO] [stderr]   Downloaded wasm-timer v0.1.3
[INFO] [stderr]   Downloaded bracket-noise v0.8.7
[INFO] [stderr]   Downloaded ultraviolet v0.9.1
[INFO] [stderr]   Downloaded bracket-embedding v0.8.7
[INFO] [stderr]   Downloaded toml_edit v0.19.8
[INFO] [stderr]   Downloaded wide v0.7.8
[INFO] [stderr]   Downloaded calloop v0.10.5
[INFO] [stderr]   Downloaded bracket-geometry v0.8.7
[INFO] [stderr]   Downloaded bracket-color v0.8.7
[INFO] [stderr]   Downloaded cocoa-foundation v0.1.1
[INFO] [stderr]   Downloaded bracket-terminal v0.8.7
[INFO] [stderr]   Downloaded object-pool v0.5.4
[INFO] [stderr]   Downloaded bracket-lib v0.8.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 90ba37150019005f5df057d96ce4b08dc3dcec91e1064ffbed87781652115e85
[INFO] running `Command { std: "docker" "start" "-a" "90ba37150019005f5df057d96ce4b08dc3dcec91e1064ffbed87781652115e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90ba37150019005f5df057d96ce4b08dc3dcec91e1064ffbed87781652115e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90ba37150019005f5df057d96ce4b08dc3dcec91e1064ffbed87781652115e85", kill_on_drop: false }`
[INFO] [stdout] 90ba37150019005f5df057d96ce4b08dc3dcec91e1064ffbed87781652115e85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b969396e374e67fded4050e18c67b1798ee88db6f06f48977e04212c98c80690
[INFO] running `Command { std: "docker" "start" "-a" "b969396e374e67fded4050e18c67b1798ee88db6f06f48977e04212c98c80690", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking lock_api v0.4.9
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking foreign-types-shared v0.3.1
[INFO] [stderr]     Checking tiny-skia-path v0.7.0
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[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 arrayvec v0.5.2
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[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" "b969396e374e67fded4050e18c67b1798ee88db6f06f48977e04212c98c80690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b969396e374e67fded4050e18c67b1798ee88db6f06f48977e04212c98c80690", kill_on_drop: false }`
[INFO] [stdout] b969396e374e67fded4050e18c67b1798ee88db6f06f48977e04212c98c80690