[INFO] fetching crate dep-obj 0.38.4... [INFO] testing dep-obj-0.38.4 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [INFO] extracting crate dep-obj 0.38.4 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate dep-obj 0.38.4 [INFO] finished tweaking crates.io crate dep-obj 0.38.4 [INFO] tweaked toml for crates.io crate dep-obj 0.38.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate dep-obj 0.38.4 on toolchain b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate dep-obj 0.38.4 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 020dae7099cf6e3347e29328bdee4f52ced59f3e0cf12a4a9e4d6b7eaa1a7666 [INFO] running `Command { std: "docker" "start" "-a" "020dae7099cf6e3347e29328bdee4f52ced59f3e0cf12a4a9e4d6b7eaa1a7666", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "020dae7099cf6e3347e29328bdee4f52ced59f3e0cf12a4a9e4d6b7eaa1a7666", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "020dae7099cf6e3347e29328bdee4f52ced59f3e0cf12a4a9e4d6b7eaa1a7666", kill_on_drop: false }` [INFO] [stdout] 020dae7099cf6e3347e29328bdee4f52ced59f3e0cf12a4a9e4d6b7eaa1a7666 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c29c2520cdc84f4d10a501c8af3fb6aade450dc5a63e24588acbcf336a71f9db [INFO] running `Command { std: "docker" "start" "-a" "c29c2520cdc84f4d10a501c8af3fb6aade450dc5a63e24588acbcf336a71f9db", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling syn v1.0.96 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Compiling gimli v0.26.1 [INFO] [stderr] Compiling unicode-xid v0.2.3 [INFO] [stderr] Compiling object v0.28.4 [INFO] [stderr] Compiling miniz_oxide v0.5.3 [INFO] [stderr] Compiling rustc-demangle v0.1.21 [INFO] [stderr] Compiling backtrace v0.3.65 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling generics v0.4.4 [INFO] [stderr] Compiling panicking v0.1.1 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling paste v1.0.7 [INFO] [stderr] Compiling indoc v1.0.6 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling composable-allocators v0.1.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stdout] error[E0658]: use of unstable const library feature `const_default` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/limited_up_to.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | > const Default for CtParams { [INFO] [stdout] | ^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143894 for more information [INFO] [stdout] = help: add `#![feature(const_default)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_default` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/global.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl const Default for Global { [INFO] [stdout] | ^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143894 for more information [INFO] [stdout] = help: add `#![feature(const_default)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_default` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/non_working.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl const Default for NonWorking { [INFO] [stdout] | ^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143894 for more information [INFO] [stdout] = help: add `#![feature(const_default)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_default` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/stacked.rs:26:34 [INFO] [stdout] | [INFO] [stdout] 26 | impl const Default for CtParams { [INFO] [stdout] | ^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143894 for more information [INFO] [stdout] = help: add `#![feature(const_default)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_default` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/freelist.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 27 | impl const Default for NoLimit { [INFO] [stdout] | ^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143894 for more information [INFO] [stdout] = help: add `#![feature(const_default)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_default` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/freelist.rs:43:32 [INFO] [stdout] | [INFO] [stdout] 43 | impl const Default for FixedCtLimit { [INFO] [stdout] | ^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143894 for more information [INFO] [stdout] = help: add `#![feature(const_default)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_default` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/freelist.rs:136:9 [INFO] [stdout] | [INFO] [stdout] 136 | > const Default for CtParams { [INFO] [stdout] | ^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143894 for more information [INFO] [stdout] = help: add `#![feature(const_default)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_default` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/freelist.rs:135:32 [INFO] [stdout] | [INFO] [stdout] 135 | Limit: LimitParam + ~const Default, [INFO] [stdout] | ------ ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #143894 for more information [INFO] [stdout] = help: add `#![feature(const_default)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: const `impl` for trait `Params` which is not `const` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/limited_up_to.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | > const Params for CtParams { [INFO] [stdout] | ^^^^^^ this trait is not `const` [INFO] [stdout] | [INFO] [stdout] = note: marking a trait with `const` ensures all default method bodies are `const` [INFO] [stdout] = note: adding a non-const method body in the future would be a breaking change [INFO] [stdout] help: mark `Params` as `const` to allow it to have `const` implementations [INFO] [stdout] | [INFO] [stdout] 10 | #[const_trait] pub unsafe trait Params { [INFO] [stdout] | ++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: const `impl` for trait `Params` which is not `const` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/stacked.rs:30:41 [INFO] [stdout] | [INFO] [stdout] 30 | unsafe impl const Params for CtParams { [INFO] [stdout] | ^^^^^^ this trait is not `const` [INFO] [stdout] | [INFO] [stdout] = note: marking a trait with `const` ensures all default method bodies are `const` [INFO] [stdout] = note: adding a non-const method body in the future would be a breaking change [INFO] [stdout] help: mark `Params` as `const` to allow it to have `const` implementations [INFO] [stdout] | [INFO] [stdout] 13 | #[const_trait] pub unsafe trait Params { [INFO] [stdout] | ++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: const `impl` for trait `Params` which is not `const` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/freelist.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | > const Params for CtParams { [INFO] [stdout] | ^^^^^^ this trait is not `const` [INFO] [stdout] | [INFO] [stdout] = note: marking a trait with `const` ensures all default method bodies are `const` [INFO] [stdout] = note: adding a non-const method body in the future would be a breaking change [INFO] [stdout] help: mark `Params` as `const` to allow it to have `const` implementations [INFO] [stdout] | [INFO] [stdout] 88 | #[const_trait] pub unsafe trait Params { [INFO] [stdout] | ++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `Default` is not yet stable as a const trait [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/freelist.rs:137:38 [INFO] [stdout] | [INFO] [stdout] 137 | fn default() -> Self { Self::new(Limit::default()) } [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: add `#![feature(const_default)]` to the crate attributes to enable [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/composable-allocators-0.1.0/src/lib.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 + #![feature(const_default)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `composable-allocators` (lib) due to 12 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "c29c2520cdc84f4d10a501c8af3fb6aade450dc5a63e24588acbcf336a71f9db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c29c2520cdc84f4d10a501c8af3fb6aade450dc5a63e24588acbcf336a71f9db", kill_on_drop: false }` [INFO] [stdout] c29c2520cdc84f4d10a501c8af3fb6aade450dc5a63e24588acbcf336a71f9db