[INFO] cloning repository https://github.com/TeamMeng/macros
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TeamMeng/macros" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeamMeng%2Fmacros", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeamMeng%2Fmacros'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 878c10874e05e8d145f52ba3c5661bfa5ad4f8c3
[INFO] checking TeamMeng/macros against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeamMeng%2Fmacros" "/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/TeamMeng/macros
[INFO] finished tweaking git repo https://github.com/TeamMeng/macros
[INFO] tweaked toml for git repo https://github.com/TeamMeng/macros written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TeamMeng/macros 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/TeamMeng/macros 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] 1edfa39c8a304d2a201454bb248e6d660a6a5d423d020fb42d1fb8e7554aba06
[INFO] running `Command { std: "docker" "start" "1edfa39c8a304d2a201454bb248e6d660a6a5d423d020fb42d1fb8e7554aba06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1edfa39c8a304d2a201454bb248e6d660a6a5d423d020fb42d1fb8e7554aba06", 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" "1edfa39c8a304d2a201454bb248e6d660a6a5d423d020fb42d1fb8e7554aba06" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1edfa39c8a304d2a201454bb248e6d660a6a5d423d020fb42d1fb8e7554aba06", 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" "1edfa39c8a304d2a201454bb248e6d660a6a5d423d020fb42d1fb8e7554aba06" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.87
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking syn v2.0.77
[INFO] [stderr]     Checking darling_core v0.20.10
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking futures-util v0.3.30
[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] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stdout] error[E0658]: use of unstable library feature `liballoc_internals`
[INFO] [stdout]   --> examples/my_vec.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let v = my_vec![1; 4]; // vec![1, 1, 1, 1]
[INFO] [stdout]    |             ------------- in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 29 | macro_rules! my_vec {
[INFO] [stdout] ...
[INFO] [stdout] 34 |         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] ident: Ident { ident: "Direction", span: #0 bytes(86..95) }, generics: Generics { lt_token: Some(Lt), params: [GenericParam::Type(TypeParam { attrs: [], ident: Ident { ident: "T", span: #0 bytes(96..97) }, colon_token: None, bounds: [], eq_token: None, default: None })], gt_token: Some(Gt), where_clause: None }
[INFO] [stdout] [
[INFO] [stdout]     EnumVariants {
[INFO] [stdout]         ident: Ident {
[INFO] [stdout]             ident: "Up",
[INFO] [stdout]             span: #0 bytes(105..107),
[INFO] [stdout]         },
[INFO] [stdout]         fields: Fields {
[INFO] [stdout]             style: Tuple,
[INFO] [stdout]             fields: [
[INFO] [stdout]                 EnumVariantFields {
[INFO] [stdout]                     ty: Type::Path {
[INFO] [stdout]                         qself: None,
[INFO] [stdout]                         path: Path {
[INFO] [stdout]                             leading_colon: None,
[INFO] [stdout]                             segments: [
[INFO] [stdout]                                 PathSegment {
[INFO] [stdout]                                     ident: Ident {
[INFO] [stdout]                                         ident: "DirectionUp",
[INFO] [stdout]                                         span: #0 bytes(108..119),
[INFO] [stdout]                                     },
[INFO] [stdout]                                     arguments: PathArguments::AngleBracketed {
[INFO] [stdout]                                         colon2_token: None,
[INFO] [stdout]                                         lt_token: Lt,
[INFO] [stdout]                                         args: [
[INFO] [stdout]                                             GenericArgument::Type(
[INFO] [stdout]                                                 Type::Path {
[INFO] [stdout]                                                     qself: None,
[INFO] [stdout]                                                     path: Path {
[INFO] [stdout]                                                         leading_colon: None,
[INFO] [stdout]                                                         segments: [
[INFO] [stdout]                                                             PathSegment {
[INFO] [stdout]                                                                 ident: Ident {
[INFO] [stdout]                                                                     ident: "T",
[INFO] [stdout]                                                                     span: #0 bytes(120..121),
[INFO] [stdout]                                                                 },
[INFO] [stdout]                                                                 arguments: PathArguments::None,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                         ],
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ),
[INFO] [stdout]                                         ],
[INFO] [stdout]                                         gt_token: Gt,
[INFO] [stdout]                                     },
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     },
[INFO] [stdout]                 },
[INFO] [stdout]             ],
[INFO] [stdout]             span: Some(
[INFO] [stdout]                 #0 bytes(107..123),
[INFO] [stdout]             ),
[INFO] [stdout]             __nonexhaustive: (),
[INFO] [stdout]         },
[INFO] [stdout]     },
[INFO] [stdout]     EnumVariants {
[INFO] [stdout]         ident: Ident {
[INFO] [stdout]             ident: "Down",
[INFO] [stdout]             span: #0 bytes(129..133),
[INFO] [stdout]         },
[INFO] [stdout]         fields: Fields {
[INFO] [stdout]             style: Unit,
[INFO] [stdout]             fields: [],
[INFO] [stdout]             span: Some(
[INFO] [stdout]                 #5 bytes(56..71),
[INFO] [stdout]             ),
[INFO] [stdout]             __nonexhaustive: (),
[INFO] [stdout]         },
[INFO] [stdout]     },
[INFO] [stdout]     EnumVariants {
[INFO] [stdout]         ident: Ident {
[INFO] [stdout]             ident: "Left",
[INFO] [stdout]             span: #0 bytes(139..143),
[INFO] [stdout]         },
[INFO] [stdout]         fields: Fields {
[INFO] [stdout]             style: Tuple,
[INFO] [stdout]             fields: [
[INFO] [stdout]                 EnumVariantFields {
[INFO] [stdout]                     ty: Type::Path {
[INFO] [stdout]                         qself: None,
[INFO] [stdout]                         path: Path {
[INFO] [stdout]                             leading_colon: None,
[INFO] [stdout]                             segments: [
[INFO] [stdout]                                 PathSegment {
[INFO] [stdout]                                     ident: Ident {
[INFO] [stdout]                                         ident: "u32",
[INFO] [stdout]                                         span: #0 bytes(144..147),
[INFO] [stdout]                                     },
[INFO] [stdout]                                     arguments: PathArguments::None,
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     },
[INFO] [stdout]                 },
[INFO] [stdout]             ],
[INFO] [stdout]             span: Some(
[INFO] [stdout]                 #0 bytes(143..148),
[INFO] [stdout]             ),
[INFO] [stdout]             __nonexhaustive: (),
[INFO] [stdout]         },
[INFO] [stdout]     },
[INFO] [stdout]     EnumVariants {
[INFO] [stdout]         ident: Ident {
[INFO] [stdout]             ident: "Right",
[INFO] [stdout]             span: #0 bytes(154..159),
[INFO] [stdout]         },
[INFO] [stdout]         fields: Fields {
[INFO] [stdout]             style: Unit,
[INFO] [stdout]             fields: [],
[INFO] [stdout]             span: Some(
[INFO] [stdout]                 #5 bytes(56..71),
[INFO] [stdout]             ),
[INFO] [stdout]             __nonexhaustive: (),
[INFO] [stdout]         },
[INFO] [stdout]     },
[INFO] [stdout] ]
[INFO] running `Command { std: "docker" "inspect" "1edfa39c8a304d2a201454bb248e6d660a6a5d423d020fb42d1fb8e7554aba06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1edfa39c8a304d2a201454bb248e6d660a6a5d423d020fb42d1fb8e7554aba06", kill_on_drop: false }`
[INFO] [stdout] 1edfa39c8a304d2a201454bb248e6d660a6a5d423d020fb42d1fb8e7554aba06
