[INFO] fetching crate julia_set_explorer 0.1.0...
[INFO] checking julia_set_explorer-0.1.0 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate julia_set_explorer 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate julia_set_explorer 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 julia_set_explorer 0.1.0
[INFO] finished tweaking crates.io crate julia_set_explorer 0.1.0
[INFO] tweaked toml for crates.io crate julia_set_explorer 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate julia_set_explorer 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 confy v0.5.1
[INFO] [stderr]   Downloaded mandelbruhst-cli v0.1.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.57
[INFO] [stderr]   Downloaded xml-rs v0.8.11
[INFO] [stderr]   Downloaded minifb v0.24.0
[INFO] [stderr]   Downloaded exr v1.6.3
[INFO] [stderr]   Downloaded orbclient v0.3.45
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57d67bc09ac08f3aa5e43a1d03ba7f29b93caeb6b6b2c18cfa089d8523c05deb
[INFO] running `Command { std: "docker" "start" "-a" "57d67bc09ac08f3aa5e43a1d03ba7f29b93caeb6b6b2c18cfa089d8523c05deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57d67bc09ac08f3aa5e43a1d03ba7f29b93caeb6b6b2c18cfa089d8523c05deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d67bc09ac08f3aa5e43a1d03ba7f29b93caeb6b6b2c18cfa089d8523c05deb", kill_on_drop: false }`
[INFO] [stdout] 57d67bc09ac08f3aa5e43a1d03ba7f29b93caeb6b6b2c18cfa089d8523c05deb
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e8a7505c76a93531b8b747c125a838ae027d86e6d119d5be6898b96eeb83b19
[INFO] running `Command { std: "docker" "start" "-a" "6e8a7505c76a93531b8b747c125a838ae027d86e6d119d5be6898b96eeb83b19", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.57
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling xml-rs v0.8.11
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking linux-raw-sys v0.3.7
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking anstyle-parse v0.2.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling indexmap v1.9.3
[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-macro2-1.0.57/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 anstyle v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking half v2.2.1
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking base64 v0.13.1
[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" "6e8a7505c76a93531b8b747c125a838ae027d86e6d119d5be6898b96eeb83b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e8a7505c76a93531b8b747c125a838ae027d86e6d119d5be6898b96eeb83b19", kill_on_drop: false }`
[INFO] [stdout] 6e8a7505c76a93531b8b747c125a838ae027d86e6d119d5be6898b96eeb83b19
