[INFO] cloning repository https://github.com/kevin406972552/rust-serial-tool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kevin406972552/rust-serial-tool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevin406972552%2Frust-serial-tool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevin406972552%2Frust-serial-tool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fef7deab34ec4ac62e03be51825a17edc6e0404e
[INFO] checking kevin406972552/rust-serial-tool against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevin406972552%2Frust-serial-tool" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kevin406972552/rust-serial-tool
[INFO] finished tweaking git repo https://github.com/kevin406972552/rust-serial-tool
[INFO] tweaked toml for git repo https://github.com/kevin406972552/rust-serial-tool written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kevin406972552/rust-serial-tool on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kevin406972552/rust-serial-tool 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" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "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 text-size v1.1.0
[INFO] [stderr]   Downloaded usvg v0.32.0
[INFO] [stderr]   Downloaded rowan v0.15.11
[INFO] [stderr]   Downloaded atomic-polyfill v1.0.2
[INFO] [stderr]   Downloaded glutin_egl_sys v0.4.0
[INFO] [stderr]   Downloaded cpp_common v0.5.8
[INFO] [stderr]   Downloaded svgtypes v0.11.0
[INFO] [stderr]   Downloaded cpp_macros v0.5.8
[INFO] [stderr]   Downloaded i-slint-backend-winit v1.0.2
[INFO] [stderr]   Downloaded qttypes v0.2.8
[INFO] [stderr]   Downloaded i-slint-renderer-skia v1.0.2
[INFO] [stderr]   Downloaded glutin v0.30.7
[INFO] [stderr]   Downloaded femtovg v0.6.0
[INFO] [stderr]   Downloaded i-slint-backend-qt v1.0.2
[INFO] [stderr]   Downloaded imgref v1.9.4
[INFO] [stderr]   Downloaded i-slint-compiler v1.0.2
[INFO] [stderr]   Downloaded rustybuzz v0.7.0
[INFO] [stderr]   Downloaded skia-safe v0.60.0
[INFO] [stderr]   Downloaded tiny-skia v0.9.0
[INFO] [stderr]   Downloaded usvg-parser v0.32.0
[INFO] [stderr]   Downloaded kurbo v0.9.4
[INFO] [stderr]   Downloaded slint v1.0.2
[INFO] [stderr]   Downloaded skia-bindings v0.60.0
[INFO] [stderr]   Downloaded auto_enums v0.8.0
[INFO] [stderr]   Downloaded slint-macros v1.0.2
[INFO] [stderr]   Downloaded tiny-skia-path v0.9.0
[INFO] [stderr]   Downloaded xml-rs v0.8.5
[INFO] [stderr]   Downloaded codemap-diagnostic v0.1.1
[INFO] [stderr]   Downloaded i-slint-core v1.0.2
[INFO] [stderr]   Downloaded rosvgtree v0.3.0
[INFO] [stderr]   Downloaded resvg v0.32.0
[INFO] [stderr]   Downloaded lru v0.9.0
[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 vtable v0.1.10
[INFO] [stderr]   Downloaded lyon_path v1.0.3
[INFO] [stderr]   Downloaded fontdb v0.13.1
[INFO] [stderr]   Downloaded i-slint-renderer-femtovg v1.0.2
[INFO] [stderr]   Downloaded i-slint-common v1.0.2
[INFO] [stderr]   Downloaded imagesize v0.11.0
[INFO] [stderr]   Downloaded cpp v0.5.8
[INFO] [stderr]   Downloaded cpp_build v0.5.8
[INFO] [stderr]   Downloaded x11-clipboard v0.7.1
[INFO] [stderr]   Downloaded copypasta v0.8.2
[INFO] [stderr]   Downloaded generational-arena v0.2.8
[INFO] [stderr]   Downloaded i-slint-backend-selector v1.0.2
[INFO] [stderr]   Downloaded usvg-tree v0.32.0
[INFO] [stderr]   Downloaded slint-build v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21708501b072b2bfee7ac51e7a3694fd09ef496766a0c86583b0e273f6a677f0
[INFO] running `Command { std: "docker" "start" "-a" "21708501b072b2bfee7ac51e7a3694fd09ef496766a0c86583b0e273f6a677f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21708501b072b2bfee7ac51e7a3694fd09ef496766a0c86583b0e273f6a677f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21708501b072b2bfee7ac51e7a3694fd09ef496766a0c86583b0e273f6a677f0", kill_on_drop: false }`
[INFO] [stdout] 21708501b072b2bfee7ac51e7a3694fd09ef496766a0c86583b0e273f6a677f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7be997d98df985439b70af224b2f06b9fb65392749d9683b5babe918b5755ac9
[INFO] running `Command { std: "docker" "start" "-a" "7be997d98df985439b70af224b2f06b9fb65392749d9683b5babe918b5755ac9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling xml-rs v0.8.5
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling atomic-polyfill v1.0.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking critical-section v1.1.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking bytemuck v1.13.1
[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 num-rational v0.4.1
[INFO] [stderr]     Checking strict-num v0.1.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[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" "7be997d98df985439b70af224b2f06b9fb65392749d9683b5babe918b5755ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be997d98df985439b70af224b2f06b9fb65392749d9683b5babe918b5755ac9", kill_on_drop: false }`
[INFO] [stdout] 7be997d98df985439b70af224b2f06b9fb65392749d9683b5babe918b5755ac9