[INFO] fetching crate dep-obj 0.38.4...
[INFO] checking dep-obj-0.38.4 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] extracting crate dep-obj 0.38.4 into /workspace/builds/worker-0-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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dep-obj 0.38.4 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92d99ea7f4fee7a5c90a6caef746babdf422b163d55f3232a69bcf9e4619bfdd
[INFO] running `Command { std: "docker" "start" "-a" "92d99ea7f4fee7a5c90a6caef746babdf422b163d55f3232a69bcf9e4619bfdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92d99ea7f4fee7a5c90a6caef746babdf422b163d55f3232a69bcf9e4619bfdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92d99ea7f4fee7a5c90a6caef746babdf422b163d55f3232a69bcf9e4619bfdd", kill_on_drop: false }`
[INFO] [stdout] 92d99ea7f4fee7a5c90a6caef746babdf422b163d55f3232a69bcf9e4619bfdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcd795e841e5c1e94bc954fdd3f6ec1505a61298e757687f0032d9aff253fe61
[INFO] running `Command { std: "docker" "start" "-a" "dcd795e841e5c1e94bc954fdd3f6ec1505a61298e757687f0032d9aff253fe61", 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 autocfg v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking panicking v0.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.5.3
[INFO] [stderr]    Compiling indoc v1.0.6
[INFO] [stderr]     Checking generics v0.4.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking composable-allocators v0.1.0
[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<LAYOUT_SIZE, LAYOUT_ALIGN> {
[INFO] [stdout]    |         ^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143894 <https://github.com/rust-lang/rust/issues/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 2025-07-18; 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 <https://github.com/rust-lang/rust/issues/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 2025-07-18; 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 <https://github.com/rust-lang/rust/issues/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 2025-07-18; 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 BUF_LEN: usize> const Default for CtParams<BUF_LEN> {
[INFO] [stdout]    |                                  ^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143894 <https://github.com/rust-lang/rust/issues/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 2025-07-18; 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 <https://github.com/rust-lang/rust/issues/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 2025-07-18; 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 LIMIT: usize> const Default for FixedCtLimit<LIMIT> {
[INFO] [stdout]    |                                ^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143894 <https://github.com/rust-lang/rust/issues/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 2025-07-18; 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<LAYOUT_SIZE, LAYOUT_ALIGN, TOLERANCE_SIZE, TOLERANCE_ALIGN, Limit> {
[INFO] [stdout]     |         ^^^^^^^ trait is not stable as const yet
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #143894 <https://github.com/rust-lang/rust/issues/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 2025-07-18; 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 <https://github.com/rust-lang/rust/issues/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 2025-07-18; 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<LAYOUT_SIZE, LAYOUT_ALIGN> {
[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 BUF_LEN: usize> const Params for CtParams<BUF_LEN> {
[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<LAYOUT_SIZE, LAYOUT_ALIGN, TOLERANCE_SIZE, TOLERANCE_ALIGN, Limit> {
[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] [stderr]     Checking rand v0.8.5
[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" "dcd795e841e5c1e94bc954fdd3f6ec1505a61298e757687f0032d9aff253fe61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcd795e841e5c1e94bc954fdd3f6ec1505a61298e757687f0032d9aff253fe61", kill_on_drop: false }`
[INFO] [stdout] dcd795e841e5c1e94bc954fdd3f6ec1505a61298e757687f0032d9aff253fe61
