[INFO] fetching crate slintcalc 0.1.0...
[INFO] testing slintcalc-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate slintcalc 0.1.0 into /workspace/builds/worker-5-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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slintcalc 0.1.0 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 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slint-build v1.0.2
[INFO] [stderr]   Downloaded usvg-tree v0.32.0
[INFO] [stderr]   Downloaded slint-macros v1.0.2
[INFO] [stderr]   Downloaded cpp_common v0.5.8
[INFO] [stderr]   Downloaded usvg v0.32.0
[INFO] [stderr]   Downloaded cpp_macros v0.5.8
[INFO] [stderr]   Downloaded lru v0.9.0
[INFO] [stderr]   Downloaded const-field-offset-macro v0.1.3
[INFO] [stderr]   Downloaded derive_utils v0.12.0
[INFO] [stderr]   Downloaded cpp v0.5.8
[INFO] [stderr]   Downloaded clru v0.6.1
[INFO] [stderr]   Downloaded cpp_build v0.5.8
[INFO] [stderr]   Downloaded generational-arena v0.2.9
[INFO] [stderr]   Downloaded skia-bindings v0.60.0
[INFO] [stderr]   Downloaded glutin v0.30.8
[INFO] [stderr]   Downloaded femtovg v0.6.0
[INFO] [stderr]   Downloaded ureq v2.6.2
[INFO] [stderr]   Downloaded i-slint-backend-qt v1.0.2
[INFO] [stderr]   Downloaded tiny-skia-path v0.9.0
[INFO] [stderr]   Downloaded glow v0.12.2
[INFO] [stderr]   Downloaded ttf-parser v0.19.0
[INFO] [stderr]   Downloaded i-slint-core v1.0.2
[INFO] [stderr]   Downloaded tiny-skia v0.9.1
[INFO] [stderr]   Downloaded i-slint-compiler v1.0.2
[INFO] [stderr]   Downloaded slint v1.0.2
[INFO] [stderr]   Downloaded exr v1.6.4
[INFO] [stderr]   Downloaded roxmltree v0.18.0
[INFO] [stderr]   Downloaded xml-rs v0.8.14
[INFO] [stderr]   Downloaded auto_enums v0.8.0
[INFO] [stderr]   Downloaded fontconfig-parser v0.5.2
[INFO] [stderr]   Downloaded pin-project v1.1.0
[INFO] [stderr]   Downloaded lyon_geom v1.0.4
[INFO] [stderr]   Downloaded lyon_path v1.0.3
[INFO] [stderr]   Downloaded skia-safe v0.60.0
[INFO] [stderr]   Downloaded resvg v0.32.0
[INFO] [stderr]   Downloaded i-slint-renderer-femtovg v1.0.2
[INFO] [stderr]   Downloaded i-slint-renderer-skia v1.0.2
[INFO] [stderr]   Downloaded i-slint-backend-winit v1.0.2
[INFO] [stderr]   Downloaded lyon_algorithms v1.0.3
[INFO] [stderr]   Downloaded vtable v0.1.10
[INFO] [stderr]   Downloaded usvg-parser v0.32.0
[INFO] [stderr]   Downloaded libc v0.2.145
[INFO] [stderr]   Downloaded i-slint-backend-selector v1.0.2
[INFO] [stderr]   Downloaded vtable-macro v0.1.10
[INFO] [stderr]   Downloaded i-slint-common v1.0.2
[INFO] [stderr]   Downloaded rosvgtree v0.3.0
[INFO] [stderr]   Downloaded pin-project-internal v1.1.0
[INFO] [stderr]   Downloaded i-slint-core-macros v1.0.2
[INFO] [stderr]   Downloaded fontdb v0.13.1
[INFO] [stderr]   Downloaded rowan v0.15.11
[INFO] [stderr]   Downloaded glutin_egl_sys v0.5.0
[INFO] [stderr]   Downloaded by_address v1.1.0
[INFO] [stderr]   Downloaded svgtypes v0.11.0
[INFO] [stderr]   Downloaded atomic-polyfill v1.0.2
[INFO] [stderr]   Downloaded const-field-offset v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 9197a83308a7222e307f5c1ee94a4ae639c44a10455974336bae1cd575ebf051
[INFO] running `Command { std: "docker" "start" "-a" "9197a83308a7222e307f5c1ee94a4ae639c44a10455974336bae1cd575ebf051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9197a83308a7222e307f5c1ee94a4ae639c44a10455974336bae1cd575ebf051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9197a83308a7222e307f5c1ee94a4ae639c44a10455974336bae1cd575ebf051", kill_on_drop: false }`
[INFO] [stdout] 9197a83308a7222e307f5c1ee94a4ae639c44a10455974336bae1cd575ebf051
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c5740760b07769484c73be9ac6fd06b8719d6866d01fe403a589256a0cf180fc
[INFO] running `Command { std: "docker" "start" "-a" "c5740760b07769484c73be9ac6fd06b8719d6866d01fe403a589256a0cf180fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.145
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling simd-adler32 v0.3.5
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling xml-rs v0.8.14
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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 miniz_oxide v0.7.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling libloading v0.8.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling bytemuck v1.13.1
[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" "c5740760b07769484c73be9ac6fd06b8719d6866d01fe403a589256a0cf180fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5740760b07769484c73be9ac6fd06b8719d6866d01fe403a589256a0cf180fc", kill_on_drop: false }`
[INFO] [stdout] c5740760b07769484c73be9ac6fd06b8719d6866d01fe403a589256a0cf180fc