[INFO] fetching crate serialization_minecraft 0.2.13...
[INFO] testing serialization_minecraft-0.2.13 against 1.95.0 for beta-1.96-2
[INFO] extracting crate serialization_minecraft 0.2.13 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate serialization_minecraft 0.2.13
[INFO] finished tweaking crates.io crate serialization_minecraft 0.2.13
[INFO] tweaked toml for crates.io crate serialization_minecraft 0.2.13 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serialization_minecraft 0.2.13 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serialization_minecraft 0.2.13 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serialization v0.2.13
[INFO] [stderr]   Downloaded constvec v0.1.14
[INFO] [stderr]   Downloaded fastbuf v0.28.0
[INFO] [stderr]   Downloaded fastvarint v0.22.0
[INFO] [stderr]   Downloaded seq-macro v0.3.5
[INFO] [stderr]   Downloaded concat-idents-bruce0203 v1.1.6
[INFO] [stderr]   Downloaded serialization_derive v0.2.13
[INFO] [stderr]   Downloaded uuid v1.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba0232a5173c3b8a98f7f07da7a38c6450b41ecef213bfbb3b091ca3550c3abd
[INFO] running `Command { std: "docker" "start" "-a" "ba0232a5173c3b8a98f7f07da7a38c6450b41ecef213bfbb3b091ca3550c3abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba0232a5173c3b8a98f7f07da7a38c6450b41ecef213bfbb3b091ca3550c3abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba0232a5173c3b8a98f7f07da7a38c6450b41ecef213bfbb3b091ca3550c3abd", kill_on_drop: false }`
[INFO] [stdout] ba0232a5173c3b8a98f7f07da7a38c6450b41ecef213bfbb3b091ca3550c3abd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0c259e3d4d7d76a7bfb1c326fa55479b357bc5564e3eabd3182b1488ce3ccb5
[INFO] running `Command { std: "docker" "start" "-a" "f0c259e3d4d7d76a7bfb1c326fa55479b357bc5564e3eabd3182b1488ce3ccb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]    Compiling fastbuf v0.28.0
[INFO] [stderr]    Compiling constvec v0.1.14
[INFO] [stderr]    Compiling uuid v1.11.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stdout] error: cannot find attribute `const_trait` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:47:3
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[const_trait]
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:232:63
[INFO] [stdout]     |
[INFO] [stdout] 232 | impl<T: Sized + Copy, const N1: usize, const N2: usize> const Add<&ConstVec<[T; N2]>>
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #143802 <https://github.com/rust-lang/rust/issues/143802> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: const `impl` for trait `ConstEq` which is not `const`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:55:20
[INFO] [stdout]    |
[INFO] [stdout] 55 |         impl const ConstEq for $type {
[INFO] [stdout]    |                    ^^^^^^^ this trait is not `const`
[INFO] [stdout] ...
[INFO] [stdout] 64 | impl_const_eq!(u8, i8, u16, i16, u32, i32, u64, i64, f32, f64, bool, usize, isize, i128, u128);
[INFO] [stdout]    | ---------------------------------------------------------------------------------------------- in this macro invocation
[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]    = note: this error originates in the macro `impl_const_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: const `impl` for trait `ConstEq` which is not `const`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:66:46
[INFO] [stdout]    |
[INFO] [stdout] 66 | impl<T: const ConstEq, const N: usize> const ConstEq for ConstVec<[T; N]> {
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: `const` can only be applied to `const` traits
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 | impl<T: const ConstEq, const N: usize> const ConstEq for ConstVec<[T; N]> {
[INFO] [stdout]    |         ^^^^^ can't be applied to `ConstEq`
[INFO] [stdout]    |
[INFO] [stdout] note: `ConstEq` can't be used with `const` because it isn't `const`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub trait ConstEq {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: cannot call non-const method `<T as ConstEq>::eq` in constant functions
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:75:26
[INFO] [stdout]    |
[INFO] [stdout] 75 |             if !slice[i].eq(&rhs_slice[i]) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: method `eq` is not const because trait `ConstEq` is not const
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub trait ConstEq {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^ this trait is not const
[INFO] [stdout] 49 |     fn eq(&self, other: &Self) -> bool;
[INFO] [stdout]    |     ----------------------------------- this method is not const
[INFO] [stdout]    = help: const traits are not yet supported on stable Rust
[INFO] [stdout]    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0015, E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0015`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `constvec` (lib) due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f0c259e3d4d7d76a7bfb1c326fa55479b357bc5564e3eabd3182b1488ce3ccb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0c259e3d4d7d76a7bfb1c326fa55479b357bc5564e3eabd3182b1488ce3ccb5", kill_on_drop: false }`
[INFO] [stdout] f0c259e3d4d7d76a7bfb1c326fa55479b357bc5564e3eabd3182b1488ce3ccb5
