[INFO] fetching crate chars_input 0.2.2...
[INFO] testing chars_input-0.2.2 against 1.75.0 for beta-1.76-1
[INFO] extracting crate chars_input 0.2.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate chars_input 0.2.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chars_input 0.2.2
[INFO] finished tweaking crates.io crate chars_input 0.2.2
[INFO] tweaked toml for crates.io crate chars_input 0.2.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d91b42285c7b80d850bb8133c01738fccb296b2dd4b3876ce72966ee18d31de6
[INFO] running `Command { std: "docker" "start" "-a" "d91b42285c7b80d850bb8133c01738fccb296b2dd4b3876ce72966ee18d31de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d91b42285c7b80d850bb8133c01738fccb296b2dd4b3876ce72966ee18d31de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d91b42285c7b80d850bb8133c01738fccb296b2dd4b3876ce72966ee18d31de6", kill_on_drop: false }`
[INFO] [stdout] d91b42285c7b80d850bb8133c01738fccb296b2dd4b3876ce72966ee18d31de6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d0c9be0e98f413b437ca9d54193bfc84ea3b7bb979a9293f89ef4427852ca5a
[INFO] running `Command { std: "docker" "start" "-a" "9d0c9be0e98f413b437ca9d54193bfc84ea3b7bb979a9293f89ef4427852ca5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling chars_input v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stdout]    --> src/chars.rs:140:20
[INFO] [stdout]     |
[INFO] [stdout] 140 |         chars: io::Chars<R>,
[INFO] [stdout]     |                    ^^^^^ not found in `io`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 118 +     use Chars;
[INFO] [stdout]     |
[INFO] [stdout] 118 +     use alloc::str::Chars;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Chars`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 140 -         chars: io::Chars<R>,
[INFO] [stdout] 140 +         chars: Chars<R>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::__std::*`
[INFO] [stdout]    --> src/chars.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub use self::__std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(alloc)]
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "std", feature(io))]
[INFO] [stdout]   |                                      ^^
[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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(alloc)]
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `io`
[INFO] [stdout]  --> src/lib.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "std", feature(io))]
[INFO] [stdout]   |                                      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chars` found for type parameter `R` in the current scope
[INFO] [stdout]    --> src/chars.rs:150:31
[INFO] [stdout]     |
[INFO] [stdout] 143 |     impl<R> From<R> for CharsRead<R>
[INFO] [stdout]     |          - method `chars` not found for this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 150 |                 chars: reader.chars(),
[INFO] [stdout]     |                               ^^^^^ method not found in `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0554, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chars_input` (lib) due to 6 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9d0c9be0e98f413b437ca9d54193bfc84ea3b7bb979a9293f89ef4427852ca5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d0c9be0e98f413b437ca9d54193bfc84ea3b7bb979a9293f89ef4427852ca5a", kill_on_drop: false }`
[INFO] [stdout] 9d0c9be0e98f413b437ca9d54193bfc84ea3b7bb979a9293f89ef4427852ca5a
[INFO] testing chars_input-0.2.2 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate chars_input 0.2.2 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate chars_input 0.2.2 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chars_input 0.2.2
[INFO] finished tweaking crates.io crate chars_input 0.2.2
[INFO] tweaked toml for crates.io crate chars_input 0.2.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71ab906a868d9842c5f696af33afc81caab3b2022726d776ea6e3c47d2ba70a1
[INFO] running `Command { std: "docker" "start" "-a" "71ab906a868d9842c5f696af33afc81caab3b2022726d776ea6e3c47d2ba70a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71ab906a868d9842c5f696af33afc81caab3b2022726d776ea6e3c47d2ba70a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ab906a868d9842c5f696af33afc81caab3b2022726d776ea6e3c47d2ba70a1", kill_on_drop: false }`
[INFO] [stdout] 71ab906a868d9842c5f696af33afc81caab3b2022726d776ea6e3c47d2ba70a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4976bfa8f04f6bac4d82c79e9e11842943aeb5aa428d9c2d2023619c0899edd
[INFO] running `Command { std: "docker" "start" "-a" "e4976bfa8f04f6bac4d82c79e9e11842943aeb5aa428d9c2d2023619c0899edd", kill_on_drop: false }`
[INFO] [stderr]    Compiling chars_input v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stdout]    --> src/chars.rs:140:20
[INFO] [stdout]     |
[INFO] [stdout] 140 |         chars: io::Chars<R>,
[INFO] [stdout]     |                    ^^^^^ not found in `io`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 118 +     use Chars;
[INFO] [stdout]     |
[INFO] [stdout] 118 +     use alloc::str::Chars;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Chars`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 140 -         chars: io::Chars<R>,
[INFO] [stdout] 140 +         chars: Chars<R>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::__std::*`
[INFO] [stdout]    --> src/chars.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub use self::__std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(alloc)]
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "std", feature(io))]
[INFO] [stdout]   |                                      ^^
[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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(alloc)]
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `io`
[INFO] [stdout]  --> src/lib.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "std", feature(io))]
[INFO] [stdout]   |                                      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chars` found for type parameter `R` in the current scope
[INFO] [stdout]    --> src/chars.rs:150:31
[INFO] [stdout]     |
[INFO] [stdout] 143 |     impl<R> From<R> for CharsRead<R>
[INFO] [stdout]     |          - method `chars` not found for this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 150 |                 chars: reader.chars(),
[INFO] [stdout]     |                               ^^^^^ method not found in `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0554, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chars_input` (lib) due to 6 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e4976bfa8f04f6bac4d82c79e9e11842943aeb5aa428d9c2d2023619c0899edd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4976bfa8f04f6bac4d82c79e9e11842943aeb5aa428d9c2d2023619c0899edd", kill_on_drop: false }`
[INFO] [stdout] e4976bfa8f04f6bac4d82c79e9e11842943aeb5aa428d9c2d2023619c0899edd
