[INFO] fetching crate slintcalc 0.1.0...
[INFO] checking slintcalc-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate slintcalc 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate slintcalc 0.1.0
[INFO] finished tweaking crates.io crate slintcalc 0.1.0
[INFO] tweaked toml for crates.io crate slintcalc 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slintcalc 0.1.0 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 slintcalc 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spin_on v0.1.1
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]   Downloaded const-cstr v0.3.0
[INFO] [stderr]   Downloaded critical-section v1.1.1
[INFO] [stderr]   Downloaded slint-build v1.0.2
[INFO] [stderr]   Downloaded atomic-polyfill v1.0.2
[INFO] [stderr]   Downloaded text-size v1.1.0
[INFO] [stderr]   Downloaded i-slint-core-macros v1.0.2
[INFO] [stderr]   Downloaded libloading v0.8.0
[INFO] [stderr]   Downloaded cpp v0.5.8
[INFO] [stderr]   Downloaded cpp_macros v0.5.8
[INFO] [stderr]   Downloaded slint-macros v1.0.2
[INFO] [stderr]   Downloaded lru v0.9.0
[INFO] [stderr]   Downloaded i-slint-backend-selector v1.0.2
[INFO] [stderr]   Downloaded derive_utils v0.12.0
[INFO] [stderr]   Downloaded qttypes v0.2.8
[INFO] [stderr]   Downloaded skia-bindings v0.60.0
[INFO] [stderr]   Downloaded i-slint-renderer-skia v1.0.2
[INFO] [stderr]   Downloaded i-slint-backend-winit v1.0.2
[INFO] [stderr]   Downloaded exr v1.6.4
[INFO] [stderr]   Downloaded femtovg v0.6.0
[INFO] [stderr]   Downloaded i-slint-renderer-femtovg v1.0.2
[INFO] [stderr]   Downloaded i-slint-backend-qt v1.0.2
[INFO] [stderr]   Downloaded unicode-linebreak v0.1.4
[INFO] [stderr]   Downloaded vtable-macro v0.1.10
[INFO] [stderr]   Downloaded slint v1.0.2
[INFO] [stderr]   Downloaded vtable v0.1.10
[INFO] [stderr]   Downloaded tiny-skia v0.9.1
[INFO] [stderr]   Downloaded i-slint-core v1.0.2
[INFO] [stderr]   Downloaded rowan v0.15.11
[INFO] [stderr]   Downloaded fontdb v0.12.0
[INFO] [stderr]   Downloaded i-slint-common v1.0.2
[INFO] [stderr]   Downloaded clru v0.6.1
[INFO] [stderr]   Downloaded const-field-offset v0.1.3
[INFO] [stderr]   Downloaded by_address v1.1.0
[INFO] [stderr]   Downloaded const-field-offset-macro v0.1.3
[INFO] [stderr]   Downloaded skia-safe v0.60.0
[INFO] [stderr]   Downloaded i-slint-compiler v1.0.2
[INFO] [stderr]   Downloaded winit v0.28.3
[INFO] [stderr]   Downloaded codemap-diagnostic v0.1.1
[INFO] [stderr]   Downloaded cpp_common v0.5.8
[INFO] [stderr]   Downloaded cpp_build v0.5.8
[INFO] [stderr]   Downloaded auto_enums v0.8.0
[INFO] [stderr]   Downloaded css-color-parser2 v1.0.1
[INFO] [stderr]   Downloaded lyon_extra v1.0.1
[INFO] [stderr]   Downloaded toml_edit v0.19.10
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd49999d229da2ece60bc80a47f2d94c54deb11267ab2229bd1d5504aa8893fc
[INFO] running `Command { std: "docker" "start" "-a" "cd49999d229da2ece60bc80a47f2d94c54deb11267ab2229bd1d5504aa8893fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd49999d229da2ece60bc80a47f2d94c54deb11267ab2229bd1d5504aa8893fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd49999d229da2ece60bc80a47f2d94c54deb11267ab2229bd1d5504aa8893fc", kill_on_drop: false }`
[INFO] [stdout] cd49999d229da2ece60bc80a47f2d94c54deb11267ab2229bd1d5504aa8893fc
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a81a31e9859ab5f02cf3b23e4d381c05b8d3948ffca1a9e9705204dbdaf3fe0
[INFO] running `Command { std: "docker" "start" "-a" "0a81a31e9859ab5f02cf3b23e4d381c05b8d3948ffca1a9e9705204dbdaf3fe0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling libc v0.2.145
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling xml-rs v0.8.14
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling atomic-polyfill v1.0.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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 ahash v0.7.6
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking critical-section v1.1.1
[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" "0a81a31e9859ab5f02cf3b23e4d381c05b8d3948ffca1a9e9705204dbdaf3fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a81a31e9859ab5f02cf3b23e4d381c05b8d3948ffca1a9e9705204dbdaf3fe0", kill_on_drop: false }`
[INFO] [stdout] 0a81a31e9859ab5f02cf3b23e4d381c05b8d3948ffca1a9e9705204dbdaf3fe0