[INFO] cloning repository https://github.com/acanthite/serde_json-breaks-type-inference [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/acanthite/serde_json-breaks-type-inference" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facanthite%2Fserde_json-breaks-type-inference", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facanthite%2Fserde_json-breaks-type-inference'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8cc3e3088f25f9ec0449f0b1c0896f9a0d041ada [INFO] checking acanthite/serde_json-breaks-type-inference against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facanthite%2Fserde_json-breaks-type-inference" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/acanthite/serde_json-breaks-type-inference on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/acanthite/serde_json-breaks-type-inference [INFO] finished tweaking git repo https://github.com/acanthite/serde_json-breaks-type-inference [INFO] tweaked toml for git repo https://github.com/acanthite/serde_json-breaks-type-inference written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/acanthite/serde_json-breaks-type-inference already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 812f0bf6d0a1bbac3da15458b7c98bc7a4d871985fd9aee26e8b1431bf3190d2 [INFO] running `Command { std: "docker" "start" "-a" "812f0bf6d0a1bbac3da15458b7c98bc7a4d871985fd9aee26e8b1431bf3190d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "812f0bf6d0a1bbac3da15458b7c98bc7a4d871985fd9aee26e8b1431bf3190d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "812f0bf6d0a1bbac3da15458b7c98bc7a4d871985fd9aee26e8b1431bf3190d2", kill_on_drop: false }` [INFO] [stdout] 812f0bf6d0a1bbac3da15458b7c98bc7a4d871985fd9aee26e8b1431bf3190d2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1e9bd1eacf98d90896e9acd477d5c47d1d11a2b0c3898f0d07cd0fe5d1fb2efb [INFO] running `Command { std: "docker" "start" "-a" "1e9bd1eacf98d90896e9acd477d5c47d1d11a2b0c3898f0d07cd0fe5d1fb2efb", kill_on_drop: false }` [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking serde_json v1.0.51 [INFO] [stderr] Checking broken_inference v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `serde_json` [INFO] [stdout] --> src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `serde_json` [INFO] [stdout] --> src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/lib.rs:12:48 [INFO] [stdout] | [INFO] [stdout] 12 | assert_eq!(10, vec![1, 2, 3, 4].iter().sum()); [INFO] [stdout] | ^^^ cannot infer type for type parameter `S` declared on the associated function `sum` [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: Sum<&i32>` [INFO] [stdout] help: consider specifying the type argument in the method call [INFO] [stdout] | [INFO] [stdout] 12 | assert_eq!(10, vec![1, 2, 3, 4].iter().sum::()); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/lib.rs:22:38 [INFO] [stdout] | [INFO] [stdout] 22 | assert_eq!(10, linked.iter().sum()) [INFO] [stdout] | ^^^ cannot infer type for type parameter `S` declared on the associated function `sum` [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: Sum<&i32>` [INFO] [stdout] help: consider specifying the type argument in the method call [INFO] [stdout] | [INFO] [stdout] 22 | assert_eq!(10, linked.iter().sum::()) [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/other_broken.rs:7:48 [INFO] [stdout] | [INFO] [stdout] 7 | assert_eq!(10, vec![1, 2, 3, 4].iter().sum()); [INFO] [stdout] | ^^^ cannot infer type for type parameter `S` declared on the associated function `sum` [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: Sum<&i32>` [INFO] [stdout] help: consider specifying the type argument in the method call [INFO] [stdout] | [INFO] [stdout] 7 | assert_eq!(10, vec![1, 2, 3, 4].iter().sum::()); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0283`. [INFO] [stdout] [INFO] [stderr] error: could not compile `broken_inference` due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "1e9bd1eacf98d90896e9acd477d5c47d1d11a2b0c3898f0d07cd0fe5d1fb2efb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e9bd1eacf98d90896e9acd477d5c47d1d11a2b0c3898f0d07cd0fe5d1fb2efb", kill_on_drop: false }` [INFO] [stdout] 1e9bd1eacf98d90896e9acd477d5c47d1d11a2b0c3898f0d07cd0fe5d1fb2efb