[INFO] fetching crate maxlen 0.2.0...
[INFO] testing maxlen-0.2.0 against 1.86.0 for beta-1.87-1
[INFO] extracting crate maxlen 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate maxlen 0.2.0 on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maxlen 0.2.0
[INFO] finished tweaking crates.io crate maxlen 0.2.0
[INFO] tweaked toml for crates.io crate maxlen 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate maxlen 0.2.0 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" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maxlen-macro v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a0f07ae71e108440c6cff260e86ec2da33422c5f3bdbde324ad80de9b9c2703
[INFO] running `Command { std: "docker" "start" "-a" "3a0f07ae71e108440c6cff260e86ec2da33422c5f3bdbde324ad80de9b9c2703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a0f07ae71e108440c6cff260e86ec2da33422c5f3bdbde324ad80de9b9c2703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a0f07ae71e108440c6cff260e86ec2da33422c5f3bdbde324ad80de9b9c2703", kill_on_drop: false }`
[INFO] [stdout] 3a0f07ae71e108440c6cff260e86ec2da33422c5f3bdbde324ad80de9b9c2703
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a675e578bbfd577061745d1665005e2f09c7dfa3dfb40aa72c35acb7052323d7
[INFO] running `Command { std: "docker" "start" "-a" "a675e578bbfd577061745d1665005e2f09c7dfa3dfb40aa72c35acb7052323d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling maxlen-macro v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling maxlen v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature `extract_if`: recently added
[INFO] [stdout]    --> src/bvec.rs:189:7
[INFO] [stdout]     |
[INFO] [stdout] 189 |     ) -> std::vec::ExtractIf<T, F>
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43244 <https://github.com/rust-lang/rust/issues/43244> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `extract_if`: recently added
[INFO] [stdout]    --> src/bvec.rs:193:10
[INFO] [stdout]     |
[INFO] [stdout] 193 |         self.s.extract_if(range, filter)
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43244 <https://github.com/rust-lang/rust/issues/43244> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::string::String: TryFrom<Vec<u8>>` is not satisfied
[INFO] [stdout]    --> src/bvec.rs:751:3
[INFO] [stdout]     |
[INFO] [stdout] 751 |         String::try_from(value.s)
[INFO] [stdout]     |         ^^^^^^ the trait `From<Vec<u8>>` is not implemented for `std::string::String`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `std::string::String` implements `From<&bstr::BStr<MAX, E>>`
[INFO] [stdout]               `std::string::String` implements `From<&bstring::BString<MAX, E>>`
[INFO] [stdout]               `std::string::String` implements `From<&mut bstr::BStr<MAX, E>>`
[INFO] [stdout]               `std::string::String` implements `From<&mut str>`
[INFO] [stdout]               `std::string::String` implements `From<&std::string::String>`
[INFO] [stdout]               `std::string::String` implements `From<&str>`
[INFO] [stdout]               `std::string::String` implements `From<Box<str>>`
[INFO] [stdout]               `std::string::String` implements `From<Cow<'_, str>>`
[INFO] [stdout]               `std::string::String` implements `From<char>`
[INFO] [stdout]     = note: required for `Vec<u8>` to implement `Into<std::string::String>`
[INFO] [stdout]     = note: required for `std::string::String` to implement `TryFrom<Vec<u8>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/bvec.rs:751:3
[INFO] [stdout]     |
[INFO] [stdout] 750 |     fn try_from(value: BVec<u8, MAX>) -> Result<Self, Self::Error> {
[INFO] [stdout]     |                                          ------------------------- expected `Result<std::string::String, FromUtf8Error>` because of return type
[INFO] [stdout] 751 |         String::try_from(value.s)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<String, FromUtf8Error>`, found `Result<String, Infallible>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Result<_, FromUtf8Error>`
[INFO] [stdout]                found enum `Result<_, Infallible>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::string::String: From<Vec<u8>>` is not satisfied
[INFO] [stdout]    --> src/bvec.rs:751:3
[INFO] [stdout]     |
[INFO] [stdout] 751 |         String::try_from(value.s)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `From<Vec<u8>>` is not implemented for `std::string::String`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `std::string::String` implements `From<&bstr::BStr<MAX, E>>`
[INFO] [stdout]               `std::string::String` implements `From<&bstring::BString<MAX, E>>`
[INFO] [stdout]               `std::string::String` implements `From<&mut bstr::BStr<MAX, E>>`
[INFO] [stdout]               `std::string::String` implements `From<&mut str>`
[INFO] [stdout]               `std::string::String` implements `From<&std::string::String>`
[INFO] [stdout]               `std::string::String` implements `From<&str>`
[INFO] [stdout]               `std::string::String` implements `From<Box<str>>`
[INFO] [stdout]               `std::string::String` implements `From<Cow<'_, str>>`
[INFO] [stdout]               `std::string::String` implements `From<char>`
[INFO] [stdout]     = note: required for `Vec<u8>` to implement `Into<std::string::String>`
[INFO] [stdout]     = note: required for `std::string::String` to implement `TryFrom<Vec<u8>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Vec::<T, A>::as_mut_ptr` is not yet stable as a const fn
[INFO] [stdout]    --> src/bvec.rs:132:3
[INFO] [stdout]     |
[INFO] [stdout] 132 |         self.s.as_mut_ptr()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(const_vec_string_slice)]` to the crate attributes to enable
[INFO] [stdout]    --> src/lib.rs:3:1
[INFO] [stdout]     |
[INFO] [stdout] 3   + #![feature(const_vec_string_slice)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Vec::<T, A>::as_ptr` is not yet stable as a const fn
[INFO] [stdout]    --> src/bvec.rs:138:3
[INFO] [stdout]     |
[INFO] [stdout] 138 |         self.s.as_ptr()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(const_vec_string_slice)]` to the crate attributes to enable
[INFO] [stdout]    --> src/lib.rs:3:1
[INFO] [stdout]     |
[INFO] [stdout] 3   + #![feature(const_vec_string_slice)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Vec::<T, A>::as_mut_slice` is not yet stable as a const fn
[INFO] [stdout]    --> src/bvec.rs:144:45
[INFO] [stdout]     |
[INFO] [stdout] 144 |         unsafe { BSlice::from_slice_mut_unchecked(self.s.as_mut_slice()) }
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(const_vec_string_slice)]` to the crate attributes to enable
[INFO] [stdout]    --> src/lib.rs:3:1
[INFO] [stdout]     |
[INFO] [stdout] 3   + #![feature(const_vec_string_slice)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Vec::<T, A>::capacity` is not yet stable as a const fn
[INFO] [stdout]    --> src/bvec.rs:150:3
[INFO] [stdout]     |
[INFO] [stdout] 150 |         self.s.capacity()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(const_vec_string_slice)]` to the crate attributes to enable
[INFO] [stdout]    --> src/lib.rs:3:1
[INFO] [stdout]     |
[INFO] [stdout] 3   + #![feature(const_vec_string_slice)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `maxlen` (lib) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "a675e578bbfd577061745d1665005e2f09c7dfa3dfb40aa72c35acb7052323d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a675e578bbfd577061745d1665005e2f09c7dfa3dfb40aa72c35acb7052323d7", kill_on_drop: false }`
[INFO] [stdout] a675e578bbfd577061745d1665005e2f09c7dfa3dfb40aa72c35acb7052323d7