[INFO] cloning repository https://github.com/ctaggart/tauri-egui-basic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ctaggart/tauri-egui-basic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctaggart%2Ftauri-egui-basic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctaggart%2Ftauri-egui-basic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f54027cfd8315306043211aacc48e1e10e0cc603
[INFO] checking ctaggart/tauri-egui-basic against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctaggart%2Ftauri-egui-basic" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ctaggart/tauri-egui-basic
[INFO] finished tweaking git repo https://github.com/ctaggart/tauri-egui-basic
[INFO] tweaked toml for git repo https://github.com/ctaggart/tauri-egui-basic written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ctaggart/tauri-egui-basic on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ctaggart/tauri-egui-basic 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" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5803a55a582b2465f7cdd903d5030eda43c354b37bb9fa54e9f875af7ec9faf
[INFO] running `Command { std: "docker" "start" "-a" "a5803a55a582b2465f7cdd903d5030eda43c354b37bb9fa54e9f875af7ec9faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5803a55a582b2465f7cdd903d5030eda43c354b37bb9fa54e9f875af7ec9faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5803a55a582b2465f7cdd903d5030eda43c354b37bb9fa54e9f875af7ec9faf", kill_on_drop: false }`
[INFO] [stdout] a5803a55a582b2465f7cdd903d5030eda43c354b37bb9fa54e9f875af7ec9faf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b0afe158a5b0ee352878646c7f7aa47078582af927a2eaac356addf8ee57ac6
[INFO] running `Command { std: "docker" "start" "-a" "0b0afe158a5b0ee352878646c7f7aa47078582af927a2eaac356addf8ee57ac6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling cfg-expr v0.10.3
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[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" "0b0afe158a5b0ee352878646c7f7aa47078582af927a2eaac356addf8ee57ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b0afe158a5b0ee352878646c7f7aa47078582af927a2eaac356addf8ee57ac6", kill_on_drop: false }`
[INFO] [stdout] 0b0afe158a5b0ee352878646c7f7aa47078582af927a2eaac356addf8ee57ac6