[INFO] fetching crate mycalc 0.0.0...
[INFO] testing mycalc-0.0.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate mycalc 0.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate mycalc 0.0.0
[INFO] finished tweaking crates.io crate mycalc 0.0.0
[INFO] tweaked toml for crates.io crate mycalc 0.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mycalc 0.0.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mycalc 0.0.0 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vtable v0.1.10
[INFO] [stderr]   Downloaded const-field-offset v0.1.3
[INFO] [stderr]   Downloaded const-field-offset-macro v0.1.3
[INFO] [stderr]   Downloaded vtable-macro v0.1.10
[INFO] [stderr]   Downloaded atomic-polyfill v1.0.2
[INFO] [stderr]   Downloaded slint-macros v1.0.2
[INFO] [stderr]   Downloaded rowan v0.15.11
[INFO] [stderr]   Downloaded slint v1.0.2
[INFO] [stderr]   Downloaded cpp_macros v0.5.8
[INFO] [stderr]   Downloaded usvg-tree v0.32.0
[INFO] [stderr]   Downloaded rgb v0.8.36
[INFO] [stderr]   Downloaded lyon_path v1.0.3
[INFO] [stderr]   Downloaded codemap-diagnostic v0.1.1
[INFO] [stderr]   Downloaded glutin_egl_sys v0.4.0
[INFO] [stderr]   Downloaded lru v0.9.0
[INFO] [stderr]   Downloaded eval v0.4.3
[INFO] [stderr]   Downloaded imgref v1.9.4
[INFO] [stderr]   Downloaded glutin v0.30.7
[INFO] [stderr]   Downloaded skia-bindings v0.60.0
[INFO] [stderr]   Downloaded usvg-parser v0.32.0
[INFO] [stderr]   Downloaded i-slint-core v1.0.2
[INFO] [stderr]   Downloaded femtovg v0.6.0
[INFO] [stderr]   Downloaded winit v0.28.3
[INFO] [stderr]   Downloaded glow v0.12.1
[INFO] [stderr]   Downloaded i-slint-backend-qt v1.0.2
[INFO] [stderr]   Downloaded kurbo v0.9.4
[INFO] [stderr]   Downloaded resvg v0.32.0
[INFO] [stderr]   Downloaded usvg v0.32.0
[INFO] [stderr]   Downloaded lyon_geom v1.0.4
[INFO] [stderr]   Downloaded i-slint-backend-winit v1.0.2
[INFO] [stderr]   Downloaded auto_enums v0.8.0
[INFO] [stderr]   Downloaded lyon_algorithms v1.0.3
[INFO] [stderr]   Downloaded roxmltree v0.18.0
[INFO] [stderr]   Downloaded skia-safe v0.60.0
[INFO] [stderr]   Downloaded simplecss v0.2.1
[INFO] [stderr]   Downloaded rosvgtree v0.3.0
[INFO] [stderr]   Downloaded svgtypes v0.11.0
[INFO] [stderr]   Downloaded cpp_build v0.5.8
[INFO] [stderr]   Downloaded qttypes v0.2.8
[INFO] [stderr]   Downloaded generational-arena v0.2.8
[INFO] [stderr]   Downloaded fontconfig-parser v0.5.2
[INFO] [stderr]   Downloaded i-slint-renderer-skia v1.0.2
[INFO] [stderr]   Downloaded i-slint-backend-selector v1.0.2
[INFO] [stderr]   Downloaded clru v0.6.1
[INFO] [stderr]   Downloaded codemap v0.1.3
[INFO] [stderr]   Downloaded i-slint-renderer-femtovg v1.0.2
[INFO] [stderr]   Downloaded css-color-parser2 v1.0.1
[INFO] [stderr]   Downloaded lyon_extra v1.0.1
[INFO] [stderr]   Downloaded fontdb v0.12.0
[INFO] [stderr]   Downloaded derive_utils v0.12.0
[INFO] [stderr]   Downloaded i-slint-core-macros v1.0.2
[INFO] [stderr]   Downloaded imagesize v0.11.0
[INFO] [stderr]   Downloaded pin-weak v1.1.0
[INFO] [stderr]   Downloaded i-slint-common v1.0.2
[INFO] [stderr]   Downloaded i-slint-compiler v1.0.2
[INFO] [stderr]   Downloaded cpp v0.5.8
[INFO] [stderr]   Downloaded cpp_common v0.5.8
[INFO] [stderr]   Downloaded serde_derive v1.0.162
[INFO] [stderr]   Downloaded data-url v0.2.0
[INFO] [stderr]   Downloaded xml-rs v0.8.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67d02636e302393cefaa57e8c75b58e5cea0bae09fdd81d2a2694de86daf1b22
[INFO] running `Command { std: "docker" "start" "-a" "67d02636e302393cefaa57e8c75b58e5cea0bae09fdd81d2a2694de86daf1b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67d02636e302393cefaa57e8c75b58e5cea0bae09fdd81d2a2694de86daf1b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d02636e302393cefaa57e8c75b58e5cea0bae09fdd81d2a2694de86daf1b22", kill_on_drop: false }`
[INFO] [stdout] 67d02636e302393cefaa57e8c75b58e5cea0bae09fdd81d2a2694de86daf1b22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] e6a911a3795a72aeac435ef0c753892660790c4a7630b730f66fe5a011a065e3
[INFO] running `Command { std: "docker" "start" "-a" "e6a911a3795a72aeac435ef0c753892660790c4a7630b730f66fe5a011a065e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling xml-rs v0.8.8
[INFO] [stderr]    Compiling atomic-polyfill v1.0.2
[INFO] [stderr]    Compiling critical-section v1.1.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling simd-adler32 v0.3.5
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling bytemuck v1.13.1
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling strict-num v0.1.0
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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 fdeflate v0.3.0
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling arrayref v0.3.7
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling getrandom v0.2.9
[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" "e6a911a3795a72aeac435ef0c753892660790c4a7630b730f66fe5a011a065e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6a911a3795a72aeac435ef0c753892660790c4a7630b730f66fe5a011a065e3", kill_on_drop: false }`
[INFO] [stdout] e6a911a3795a72aeac435ef0c753892660790c4a7630b730f66fe5a011a065e3