[INFO] fetching crate inkmlrs 0.0.4...
[INFO] testing inkmlrs-0.0.4 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate inkmlrs 0.0.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate inkmlrs 0.0.4
[INFO] finished tweaking crates.io crate inkmlrs 0.0.4
[INFO] tweaked toml for crates.io crate inkmlrs 0.0.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate inkmlrs 0.0.4 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate inkmlrs 0.0.4 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lyon v0.17.10
[INFO] [stderr]   Downloaded lyon_path v0.17.7
[INFO] [stderr]   Downloaded zip v0.6.3
[INFO] [stderr]   Downloaded hound v3.5.0
[INFO] [stderr]   Downloaded old_school_gfx_glutin_ext v0.27.0
[INFO] [stderr]   Downloaded minimp3 v0.5.1
[INFO] [stderr]   Downloaded smart-default v0.6.0
[INFO] [stderr]   Downloaded sid v0.6.1
[INFO] [stderr]   Downloaded float_next_after v0.1.5
[INFO] [stderr]   Downloaded glyph_brush v0.7.5
[INFO] [stderr]   Downloaded directories v3.0.2
[INFO] [stderr]   Downloaded gfx v0.18.2
[INFO] [stderr]   Downloaded ab_glyph v0.2.19
[INFO] [stderr]   Downloaded ggez v0.7.1
[INFO] [stderr]   Downloaded lyon_algorithms v0.17.7
[INFO] [stderr]   Downloaded lyon_tessellation v0.17.10
[INFO] [stderr]   Downloaded owned_ttf_parser v0.18.0
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 383bdb6e1e99b98ebf6f5cb0b5bb7fed0ea4144b872b2bf6e4aaa5d81cae8e58
[INFO] running `Command { std: "docker" "start" "-a" "383bdb6e1e99b98ebf6f5cb0b5bb7fed0ea4144b872b2bf6e4aaa5d81cae8e58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "383bdb6e1e99b98ebf6f5cb0b5bb7fed0ea4144b872b2bf6e4aaa5d81cae8e58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "383bdb6e1e99b98ebf6f5cb0b5bb7fed0ea4144b872b2bf6e4aaa5d81cae8e58", kill_on_drop: false }`
[INFO] [stdout] 383bdb6e1e99b98ebf6f5cb0b5bb7fed0ea4144b872b2bf6e4aaa5d81cae8e58
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e35ec5ce266398aabfc7114c3c0145ac227ee639607191f3a4c83e6ab628124e
[INFO] running `Command { std: "docker" "start" "-a" "e35ec5ce266398aabfc7114c3c0145ac227ee639607191f3a4c83e6ab628124e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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 crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling unicase v2.6.0
[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" "e35ec5ce266398aabfc7114c3c0145ac227ee639607191f3a4c83e6ab628124e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e35ec5ce266398aabfc7114c3c0145ac227ee639607191f3a4c83e6ab628124e", kill_on_drop: false }`
[INFO] [stdout] e35ec5ce266398aabfc7114c3c0145ac227ee639607191f3a4c83e6ab628124e