[INFO] cloning repository https://github.com/Luai-Salah/rust_imgui-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Luai-Salah/rust_imgui-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuai-Salah%2Frust_imgui-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuai-Salah%2Frust_imgui-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b92af9d3bdd49b9c94874ba89a27a17db47a92b8
[INFO] checking Luai-Salah/rust_imgui-rs against try#5ff93158e08fa2205cd4b86cddf9eae95952cc96 for pr-129543-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuai-Salah%2Frust_imgui-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Luai-Salah/rust_imgui-rs
[INFO] finished tweaking git repo https://github.com/Luai-Salah/rust_imgui-rs
[INFO] tweaked toml for git repo https://github.com/Luai-Salah/rust_imgui-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Luai-Salah/rust_imgui-rs on toolchain 5ff93158e08fa2205cd4b86cddf9eae95952cc96
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ff93158e08fa2205cd4b86cddf9eae95952cc96" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Luai-Salah/rust_imgui-rs 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" "+5ff93158e08fa2205cd4b86cddf9eae95952cc96" "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 once_cell v1.17.1
[INFO] [stderr]   Downloaded windows-targets v0.42.1
[INFO] [stderr]   Downloaded proc-macro-crate v1.3.0
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[INFO] [stderr]   Downloaded cc v1.0.79
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[INFO] [stderr]   Downloaded objc2 v0.3.0-beta.3
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[INFO] [stderr]   Downloaded nix v0.24.3
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[INFO] [stderr]   Downloaded syn v1.0.108
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+5ff93158e08fa2205cd4b86cddf9eae95952cc96" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac3157f5325951a345a5ab5bbdacbed1539a28d1e5392f65af675eec29900202
[INFO] running `Command { std: "docker" "start" "-a" "ac3157f5325951a345a5ab5bbdacbed1539a28d1e5392f65af675eec29900202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac3157f5325951a345a5ab5bbdacbed1539a28d1e5392f65af675eec29900202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac3157f5325951a345a5ab5bbdacbed1539a28d1e5392f65af675eec29900202", kill_on_drop: false }`
[INFO] [stdout] ac3157f5325951a345a5ab5bbdacbed1539a28d1e5392f65af675eec29900202
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+5ff93158e08fa2205cd4b86cddf9eae95952cc96" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83912b192e45737e25a08e11a5de38868a40a5221af92e44f19032bc28bf1a82
[INFO] running `Command { std: "docker" "start" "-a" "83912b192e45737e25a08e11a5de38868a40a5221af92e44f19032bc28bf1a82", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling syn v1.0.108
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking strict-num v0.1.0
[INFO] [stderr]     Checking bytemuck v1.13.0
[INFO] [stderr]     Checking ttf-parser v0.18.1
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.8
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking raw-window-handle v0.5.0
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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]     Checking tiny-skia-path v0.8.3
[INFO] [stderr]     Checking png v0.17.7
[INFO] [stderr]     Checking nom v7.1.3
[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" "83912b192e45737e25a08e11a5de38868a40a5221af92e44f19032bc28bf1a82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83912b192e45737e25a08e11a5de38868a40a5221af92e44f19032bc28bf1a82", kill_on_drop: false }`
[INFO] [stdout] 83912b192e45737e25a08e11a5de38868a40a5221af92e44f19032bc28bf1a82