[INFO] fetching crate flo_draw 0.3.1...
[INFO] checking flo_draw-0.3.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate flo_draw 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate flo_draw 0.3.1
[INFO] finished tweaking crates.io crate flo_draw 0.3.1
[INFO] tweaked toml for crates.io crate flo_draw 0.3.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate flo_draw 0.3.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flo_draw 0.3.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flo_stream v0.6.0
[INFO] [stderr]   Downloaded khronos v0.1.2
[INFO] [stderr]   Downloaded egl v0.2.7
[INFO] [stderr]   Downloaded flo_render_gl_offscreen v0.3.1
[INFO] [stderr]   Downloaded flo_render v0.3.1
[INFO] [stderr]   Downloaded libc v0.1.12
[INFO] [stderr]   Downloaded flo_render_canvas v0.3.1
[INFO] [stderr]   Downloaded rental-impl v0.5.5
[INFO] [stderr]   Downloaded flo_canvas_events v0.3.1
[INFO] [stderr]   Downloaded roots v0.0.7
[INFO] [stderr]   Downloaded flo_rope v0.2.0
[INFO] [stderr]   Downloaded flo_binding v2.2.0
[INFO] [stderr]   Downloaded desync v0.8.2
[INFO] [stderr]   Downloaded desync v0.7.2
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.1
[INFO] [stderr]   Downloaded ttf-parser v0.12.3
[INFO] [stderr]   Downloaded glyph-names v0.1.0
[INFO] [stderr]   Downloaded rental v0.5.6
[INFO] [stderr]   Downloaded unicode-joining-type v0.4.0
[INFO] [stderr]   Downloaded unicode-general-category v0.3.0
[INFO] [stderr]   Downloaded flo_canvas v0.3.1
[INFO] [stderr]   Downloaded allsorts v0.5.1
[INFO] [stderr]   Downloaded flo_curves v0.6.1
[INFO] [stderr]   Downloaded rust-hsluv v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ce7b0a70ccebfbaa782221966a57f4cfce2e8db34012c7b38ac3ada7eb1ddbe
[INFO] running `Command { std: "docker" "start" "-a" "9ce7b0a70ccebfbaa782221966a57f4cfce2e8db34012c7b38ac3ada7eb1ddbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ce7b0a70ccebfbaa782221966a57f4cfce2e8db34012c7b38ac3ada7eb1ddbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ce7b0a70ccebfbaa782221966a57f4cfce2e8db34012c7b38ac3ada7eb1ddbe", kill_on_drop: false }`
[INFO] [stdout] 9ce7b0a70ccebfbaa782221966a57f4cfce2e8db34012c7b38ac3ada7eb1ddbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ee928497541551f30722e4e4728fc5993f838369031c6ad374efc0473f72cc5
[INFO] running `Command { std: "docker" "start" "-a" "9ee928497541551f30722e4e4728fc5993f838369031c6ad374efc0473f72cc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling bindgen v0.54.0
[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" "9ee928497541551f30722e4e4728fc5993f838369031c6ad374efc0473f72cc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ee928497541551f30722e4e4728fc5993f838369031c6ad374efc0473f72cc5", kill_on_drop: false }`
[INFO] [stdout] 9ee928497541551f30722e4e4728fc5993f838369031c6ad374efc0473f72cc5