[INFO] fetching crate chars_input 0.2.2...
[INFO] checking chars_input-0.2.2 against try#47af3d0de9d26c7deba4cfb203b710cc3f764e91 for pr-130443
[INFO] extracting crate chars_input 0.2.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate chars_input 0.2.2 on toolchain 47af3d0de9d26c7deba4cfb203b710cc3f764e91
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "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-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "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" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db23d08a8172c5626d1bbfd9ee5bf0ad444efe0baa5076ede38abb99c5d1395f
[INFO] running `Command { std: "docker" "start" "-a" "db23d08a8172c5626d1bbfd9ee5bf0ad444efe0baa5076ede38abb99c5d1395f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db23d08a8172c5626d1bbfd9ee5bf0ad444efe0baa5076ede38abb99c5d1395f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db23d08a8172c5626d1bbfd9ee5bf0ad444efe0baa5076ede38abb99c5d1395f", kill_on_drop: false }`
[INFO] [stdout] db23d08a8172c5626d1bbfd9ee5bf0ad444efe0baa5076ede38abb99c5d1395f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63a7920f6c89a1520deb779dd624b3406ec5525a7d11167aef931427d99f9f7c
[INFO] running `Command { std: "docker" "start" "-a" "63a7920f6c89a1520deb779dd624b3406ec5525a7d11167aef931427d99f9f7c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking 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 structs
[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] 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[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 structs
[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] 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] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/input.rs:162:45
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn trait_object_read_offset(input: &mut Input, state: &mut State, offset: usize) {
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn trait_object_read_offset(input: &mut dyn Input, state: &mut State, offset: usize) {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/input.rs:166:44
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn trait_object_read_lines(input: &mut Input, state: &mut State) -> usize {
[INFO] [stdout]     |                                            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn trait_object_read_lines(input: &mut dyn Input, state: &mut State) -> usize {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[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] [stderr] error: could not compile `chars_input` (lib) due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, 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 test) due to 4 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "63a7920f6c89a1520deb779dd624b3406ec5525a7d11167aef931427d99f9f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a7920f6c89a1520deb779dd624b3406ec5525a7d11167aef931427d99f9f7c", kill_on_drop: false }`
[INFO] [stdout] 63a7920f6c89a1520deb779dd624b3406ec5525a7d11167aef931427d99f9f7c
