[INFO] cloning repository https://github.com/qiaopengjun5162/Rust-Macros-Guide
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qiaopengjun5162/Rust-Macros-Guide" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqiaopengjun5162%2FRust-Macros-Guide", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqiaopengjun5162%2FRust-Macros-Guide'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1afedd6e1c093c637fc98b401c1b4a01dbab2c4b
[INFO] checking qiaopengjun5162/Rust-Macros-Guide against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqiaopengjun5162%2FRust-Macros-Guide" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/qiaopengjun5162/Rust-Macros-Guide
[INFO] finished tweaking git repo https://github.com/qiaopengjun5162/Rust-Macros-Guide
[INFO] tweaked toml for git repo https://github.com/qiaopengjun5162/Rust-Macros-Guide written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/qiaopengjun5162/Rust-Macros-Guide on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/qiaopengjun5162/Rust-Macros-Guide 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" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c2178d4eb990661c888efdf9d836ab43057df1d2e45cf1cbb789114c9bb28e16
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[INFO] running `Command { std: "docker" "inspect" "c2178d4eb990661c888efdf9d836ab43057df1d2e45cf1cbb789114c9bb28e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c2178d4eb990661c888efdf9d836ab43057df1d2e45cf1cbb789114c9bb28e16" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2178d4eb990661c888efdf9d836ab43057df1d2e45cf1cbb789114c9bb28e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c2178d4eb990661c888efdf9d836ab43057df1d2e45cf1cbb789114c9bb28e16" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking pin-project-lite v0.2.15
[INFO] [stderr]    Compiling anyhow v1.0.94
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking darling_core v0.20.10
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.42.0
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]     Checking darling v0.20.10
[INFO] [stderr]     Checking macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature `liballoc_internals`
[INFO] [stdout]   --> examples/my_vec.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let v4 = my_vec![5; 3];
[INFO] [stdout]    |              ------------- in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 28 | macro_rules! my_vec {
[INFO] [stdout] ...
[INFO] [stdout] 33 |         std::vec::from_elem($elem, $n)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: add `#![feature(liballoc_internals)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-10-11; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `macros` (example "my_vec") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] fields: Fields {
[INFO] [stdout]     style: Struct,
[INFO] [stdout]     fields: [
[INFO] [stdout]         AutoDebugFieldsInfo {
[INFO] [stdout]             ident: Some(
[INFO] [stdout]                 Ident {
[INFO] [stdout]                     ident: "inner",
[INFO] [stdout]                     span: #0 bytes(142..147),
[INFO] [stdout]                 },
[INFO] [stdout]             ),
[INFO] [stdout]             skip: false,
[INFO] [stdout]         },
[INFO] [stdout]         AutoDebugFieldsInfo {
[INFO] [stdout]             ident: Some(
[INFO] [stdout]                 Ident {
[INFO] [stdout]                     ident: "nothing",
[INFO] [stdout]                     span: #0 bytes(180..187),
[INFO] [stdout]                 },
[INFO] [stdout]             ),
[INFO] [stdout]             skip: true,
[INFO] [stdout]         },
[INFO] [stdout]         AutoDebugFieldsInfo {
[INFO] [stdout]             ident: Some(
[INFO] [stdout]                 Ident {
[INFO] [stdout]                     ident: "hello",
[INFO] [stdout]                     span: #0 bytes(197..202),
[INFO] [stdout]                 },
[INFO] [stdout]             ),
[INFO] [stdout]             skip: false,
[INFO] [stdout]         },
[INFO] [stdout]     ],
[INFO] [stdout]     span: Some(
[INFO] [stdout]         #0 bytes(136..213),
[INFO] [stdout]     ),
[INFO] [stdout]     __nonexhaustive: (),
[INFO] [stdout] }
[INFO] running `Command { std: "docker" "inspect" "c2178d4eb990661c888efdf9d836ab43057df1d2e45cf1cbb789114c9bb28e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2178d4eb990661c888efdf9d836ab43057df1d2e45cf1cbb789114c9bb28e16", kill_on_drop: false }`
[INFO] [stdout] c2178d4eb990661c888efdf9d836ab43057df1d2e45cf1cbb789114c9bb28e16
