[INFO] fetching crate color-splotch 0.1.0...
[INFO] checking color-splotch-0.1.0 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate color-splotch 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate color-splotch 0.1.0 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate color-splotch 0.1.0
[INFO] finished tweaking crates.io crate color-splotch 0.1.0
[INFO] tweaked toml for crates.io crate color-splotch 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate color-splotch 0.1.0 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macroquad_macro v0.1.7
[INFO] [stderr]   Downloaded quad-rand v0.2.1
[INFO] [stderr]   Downloaded ordered-float v3.2.0
[INFO] [stderr]   Downloaded png v0.17.6
[INFO] [stderr]   Downloaded miniquad v0.3.13
[INFO] [stderr]   Downloaded fontdue v0.7.2
[INFO] [stderr]   Downloaded serde_json v1.0.86
[INFO] [stderr]   Downloaded macroquad v0.3.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9678495c76da48096f4af8f06d7bcc08a322ad14e450eacbeb0ee4668337aef
[INFO] running `Command { std: "docker" "start" "-a" "a9678495c76da48096f4af8f06d7bcc08a322ad14e450eacbeb0ee4668337aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9678495c76da48096f4af8f06d7bcc08a322ad14e450eacbeb0ee4668337aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9678495c76da48096f4af8f06d7bcc08a322ad14e450eacbeb0ee4668337aef", kill_on_drop: false }`
[INFO] [stdout] a9678495c76da48096f4af8f06d7bcc08a322ad14e450eacbeb0ee4668337aef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0be7d40cf09e937cacb5f16edc0043fdeb92516feb40ab91c3fca507d34e7db0
[INFO] running `Command { std: "docker" "start" "-a" "0be7d40cf09e937cacb5f16edc0043fdeb92516feb40ab91c3fca507d34e7db0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling miniquad v0.3.13
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]     Checking num-traits v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]     Checking bumpalo v3.11.0
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling macroquad_macro v0.1.7
[INFO] [stderr]     Checking quad-rand v0.2.1
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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 gif v0.11.4
[INFO] [stderr]     Checking flate2 v1.0.24
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0be7d40cf09e937cacb5f16edc0043fdeb92516feb40ab91c3fca507d34e7db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be7d40cf09e937cacb5f16edc0043fdeb92516feb40ab91c3fca507d34e7db0", kill_on_drop: false }`
[INFO] [stdout] 0be7d40cf09e937cacb5f16edc0043fdeb92516feb40ab91c3fca507d34e7db0
