[INFO] fetching crate rustc-hex 2.1.0... [INFO] checking rustc-hex-2.1.0 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714 [INFO] extracting crate rustc-hex 2.1.0 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate rustc-hex 2.1.0 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate rustc-hex 2.1.0 [INFO] finished tweaking crates.io crate rustc-hex 2.1.0 [INFO] tweaked toml for crates.io crate rustc-hex 2.1.0 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 264023d25a81aed09a4901f7ec2dc7a89520e197c9824b9495c801f500f78004 [INFO] running `Command { std: "docker" "start" "-a" "264023d25a81aed09a4901f7ec2dc7a89520e197c9824b9495c801f500f78004", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "264023d25a81aed09a4901f7ec2dc7a89520e197c9824b9495c801f500f78004", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "264023d25a81aed09a4901f7ec2dc7a89520e197c9824b9495c801f500f78004", kill_on_drop: false }` [INFO] [stdout] 264023d25a81aed09a4901f7ec2dc7a89520e197c9824b9495c801f500f78004 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3fda8976f42a267545462e6dc842be29eebccf93ff90e8c36ef8c3bcdb758c1f [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" "3fda8976f42a267545462e6dc842be29eebccf93ff90e8c36ef8c3bcdb758c1f", kill_on_drop: false }` [INFO] [stderr] Checking rustc-hex v2.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> benches/hex.rs:14:22 [INFO] [stdout] | [INFO] [stdout] 14 | s.as_bytes().to_hex(); [INFO] [stdout] | ^^^^^^ cannot infer type for type parameter `T` declared on the associated function `to_hex` [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: FromIterator` [INFO] [stdout] help: consider specifying the type argument in the method call [INFO] [stdout] | [INFO] [stdout] 14 | s.as_bytes().to_hex::(); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> benches/hex.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 23 | let sb = s.as_bytes().to_hex(); [INFO] [stdout] | -- consider giving `sb` a type [INFO] [stdout] 24 | b.iter(|| { [INFO] [stdout] 25 | sb.from_hex().unwrap(); [INFO] [stdout] | ^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: type must be known at this point [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `FromHex` [INFO] [stdout] --> benches/hex.rs:7:11 [INFO] [stdout] | [INFO] [stdout] 7 | use hex::{FromHex, ToHex}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0282, E0283. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-hex` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "3fda8976f42a267545462e6dc842be29eebccf93ff90e8c36ef8c3bcdb758c1f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3fda8976f42a267545462e6dc842be29eebccf93ff90e8c36ef8c3bcdb758c1f", kill_on_drop: false }` [INFO] [stdout] 3fda8976f42a267545462e6dc842be29eebccf93ff90e8c36ef8c3bcdb758c1f