[INFO] fetching crate chars_input 0.2.2...
[INFO] testing chars_input-0.2.2 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate chars_input 0.2.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate chars_input 0.2.2 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cc0812a7e1d6646bfad8551090829415973dc7cbc1205efa84af4ecbf188fdc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2cc0812a7e1d6646bfad8551090829415973dc7cbc1205efa84af4ecbf188fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cc0812a7e1d6646bfad8551090829415973dc7cbc1205efa84af4ecbf188fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cc0812a7e1d6646bfad8551090829415973dc7cbc1205efa84af4ecbf188fdc", kill_on_drop: false }`
[INFO] [stdout] 2cc0812a7e1d6646bfad8551090829415973dc7cbc1205efa84af4ecbf188fdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bb1b7f2e2d6871fb0ddf51ca73f2752ac016330f0cbf6dded309da9bcde89f6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9bb1b7f2e2d6871fb0ddf51ca73f2752ac016330f0cbf6dded309da9bcde89f6", 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] 
[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] 150 |                 chars: reader.chars(),
[INFO] [stdout]     |                               ^^^^^ method not found in `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chars_input` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "9bb1b7f2e2d6871fb0ddf51ca73f2752ac016330f0cbf6dded309da9bcde89f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb1b7f2e2d6871fb0ddf51ca73f2752ac016330f0cbf6dded309da9bcde89f6", kill_on_drop: false }`
[INFO] [stdout] 9bb1b7f2e2d6871fb0ddf51ca73f2752ac016330f0cbf6dded309da9bcde89f6