[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] testing acanthite/serde_json-breaks-type-inference against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facanthite%2Fserde_json-breaks-type-inference" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/acanthite/serde_json-breaks-type-inference on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-14/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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a645e49a7009ccba442c8ea4431f64402ae86431e3be438971fb65eea44a6ae4 [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" "a645e49a7009ccba442c8ea4431f64402ae86431e3be438971fb65eea44a6ae4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a645e49a7009ccba442c8ea4431f64402ae86431e3be438971fb65eea44a6ae4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a645e49a7009ccba442c8ea4431f64402ae86431e3be438971fb65eea44a6ae4", kill_on_drop: false }` [INFO] [stdout] a645e49a7009ccba442c8ea4431f64402ae86431e3be438971fb65eea44a6ae4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 760fe26c3c5766b503e78d1c76f78e18bb52066318bbf7fdd9ac812c3fdd498f [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" "760fe26c3c5766b503e78d1c76f78e18bb52066318bbf7fdd9ac812c3fdd498f", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling serde_json v1.0.51 [INFO] [stderr] Compiling 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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 11.58s [INFO] running `Command { std: "docker" "inspect" "760fe26c3c5766b503e78d1c76f78e18bb52066318bbf7fdd9ac812c3fdd498f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "760fe26c3c5766b503e78d1c76f78e18bb52066318bbf7fdd9ac812c3fdd498f", kill_on_drop: false }` [INFO] [stdout] 760fe26c3c5766b503e78d1c76f78e18bb52066318bbf7fdd9ac812c3fdd498f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 4008c4d6b865f226934a785354c220c09405d7165dafe536b443854f408e3dfe [INFO] running `Command { std: "docker" "start" "-a" "4008c4d6b865f226934a785354c220c09405d7165dafe536b443854f408e3dfe", kill_on_drop: false }` [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] [stderr] Compiling 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] 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] note: required by a bound in `std::iter::Iterator::sum` [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] help: consider specifying the type argument in the function 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[E0283]: type annotations needed [INFO] [stdout] --> src/other_broken.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | assert_eq!(10, vec![1, 2, 3, 4].iter().sum()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: multiple `impl`s satisfying `i32: PartialEq<_>` found in the following crates: `core`, `serde_json`: [INFO] [stdout] - impl PartialEq for i32; [INFO] [stdout] - impl PartialEq for i32; [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [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[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] note: required by a bound in `std::iter::Iterator::sum` [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] help: consider specifying the type argument in the function 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:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | assert_eq!(10, vec![1, 2, 3, 4].iter().sum()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: multiple `impl`s satisfying `i32: PartialEq<_>` found in the following crates: `core`, `serde_json`: [INFO] [stdout] - impl PartialEq for i32; [INFO] [stdout] - impl PartialEq for i32; [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [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] note: required by a bound in `std::iter::Iterator::sum` [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] help: consider specifying the type argument in the function 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/lib.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | assert_eq!(10, linked.iter().sum()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: multiple `impl`s satisfying `i32: PartialEq<_>` found in the following crates: `core`, `serde_json`: [INFO] [stdout] - impl PartialEq for i32; [INFO] [stdout] - impl PartialEq for i32; [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [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: aborting due to 6 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 7 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "4008c4d6b865f226934a785354c220c09405d7165dafe536b443854f408e3dfe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4008c4d6b865f226934a785354c220c09405d7165dafe536b443854f408e3dfe", kill_on_drop: false }` [INFO] [stdout] 4008c4d6b865f226934a785354c220c09405d7165dafe536b443854f408e3dfe