[INFO] fetching crate fifo 0.2.0... [INFO] checking fifo-0.2.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate fifo 0.2.0 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate fifo 0.2.0 [INFO] finished tweaking crates.io crate fifo 0.2.0 [INFO] tweaked toml for crates.io crate fifo 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate fifo 0.2.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0017c7e8af26bab212c3c91a3585473ec5875cf23618e1b251696d34f6347e7b [INFO] running `Command { std: "docker" "start" "-a" "0017c7e8af26bab212c3c91a3585473ec5875cf23618e1b251696d34f6347e7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0017c7e8af26bab212c3c91a3585473ec5875cf23618e1b251696d34f6347e7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0017c7e8af26bab212c3c91a3585473ec5875cf23618e1b251696d34f6347e7b", kill_on_drop: false }` [INFO] [stdout] 0017c7e8af26bab212c3c91a3585473ec5875cf23618e1b251696d34f6347e7b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fac36ce229cfd4575201b80419bd580e029cd52366456875e6c0b9a28d356c73 [INFO] running `Command { std: "docker" "start" "-a" "fac36ce229cfd4575201b80419bd580e029cd52366456875e6c0b9a28d356c73", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Checking fifo v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 22 | #![feature(optin_builtin_traits)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.50.0; see for more information [INFO] [stdout] = note: renamed to `auto_traits` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved import `alloc::heap` [INFO] [stdout] --> src/lib.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | use alloc::heap; [INFO] [stdout] | ^^^^^^^^^^^ no `heap` in the root [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 22 | #![feature(optin_builtin_traits)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.50.0; see for more information [INFO] [stdout] = note: renamed to `auto_traits` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: negative trait bounds are not fully implemented; use marker types for now [INFO] [stdout] --> src/lib.rs:118:6 [INFO] [stdout] | [INFO] [stdout] 118 | impl !Sync for Sender {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #68318 for more information [INFO] [stdout] = help: add `#![feature(negative_impls)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-06-29; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: negative trait bounds are not fully implemented; use marker types for now [INFO] [stdout] --> src/lib.rs:119:6 [INFO] [stdout] | [INFO] [stdout] 119 | impl !Sync for Receiver {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #68318 for more information [INFO] [stdout] = help: add `#![feature(negative_impls)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-06-29; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | #![feature(alloc, heap_api)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `heap_api` [INFO] [stdout] --> src/lib.rs:21:19 [INFO] [stdout] | [INFO] [stdout] 21 | #![feature(alloc, heap_api)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0432, E0557, E0635, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0432`. [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved import `alloc::heap` [INFO] [stdout] --> src/lib.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | use alloc::heap; [INFO] [stdout] | ^^^^^^^^^^^ no `heap` in the root [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: negative trait bounds are not fully implemented; use marker types for now [INFO] [stdout] --> src/lib.rs:118:6 [INFO] [stdout] | [INFO] [stdout] 118 | impl !Sync for Sender {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #68318 for more information [INFO] [stdout] = help: add `#![feature(negative_impls)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-06-29; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: negative trait bounds are not fully implemented; use marker types for now [INFO] [stdout] --> src/lib.rs:119:6 [INFO] [stdout] | [INFO] [stdout] 119 | impl !Sync for Receiver {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #68318 for more information [INFO] [stdout] = help: add `#![feature(negative_impls)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-06-29; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fifo` (lib) due to 5 previous errors; 1 warning emitted [INFO] [stdout] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | #![feature(alloc, heap_api)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0635]: unknown feature `heap_api` [INFO] [stdout] --> src/lib.rs:21:19 [INFO] [stdout] | [INFO] [stdout] 21 | #![feature(alloc, heap_api)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0432, E0557, E0635, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0432`. [INFO] [stdout] [INFO] [stderr] error: could not compile `fifo` (lib test) due to 5 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "fac36ce229cfd4575201b80419bd580e029cd52366456875e6c0b9a28d356c73", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fac36ce229cfd4575201b80419bd580e029cd52366456875e6c0b9a28d356c73", kill_on_drop: false }` [INFO] [stdout] fac36ce229cfd4575201b80419bd580e029cd52366456875e6c0b9a28d356c73