[INFO] crate quickercheck 0.2.0 is already in cache [INFO] extracting crate quickercheck 0.2.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/quickercheck/0.2.0 [INFO] extracting crate quickercheck 0.2.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/quickercheck/0.2.0 [INFO] validating manifest of quickercheck-0.2.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of quickercheck-0.2.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing quickercheck-0.2.0 [INFO] finished frobbing quickercheck-0.2.0 [INFO] frobbed toml for quickercheck-0.2.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/quickercheck/0.2.0/Cargo.toml [INFO] started frobbing quickercheck-0.2.0 [INFO] finished frobbing quickercheck-0.2.0 [INFO] frobbed toml for quickercheck-0.2.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/quickercheck/0.2.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking quickercheck-0.2.0 against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/quickercheck/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 88ac5a07e969d3e66c887f3cb37b9e11e4fd6b957dc1fe3f4fd2e50508e688d4 [INFO] running `"docker" "start" "-a" "88ac5a07e969d3e66c887f3cb37b9e11e4fd6b957dc1fe3f4fd2e50508e688d4"` [INFO] [stderr] Checking quickercheck v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:105:37 [INFO] [stderr] | [INFO] [stderr] 105 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 132 | int_impls! { i8, i16, i32, i64, isize } [INFO] [stderr] | --------------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:148:37 [INFO] [stderr] | [INFO] [stderr] 148 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 163 | uint_impls! { u8, u16, u32, u64, usize } [INFO] [stderr] | ---------------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:185:25 [INFO] [stderr] | [INFO] [stderr] 185 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:197:54 [INFO] [stderr] | [INFO] [stderr] 197 | .fold(Box::new(iter::empty()) as Box>, |it, next| Box::new(it.chain(next)) ) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:210:42 [INFO] [stderr] | [INFO] [stderr] 210 | ) as Box> [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:213:62 [INFO] [stderr] | [INFO] [stderr] 213 | .fold(Box::new(iter::empty()) as Box>, |it, next| Box::new(it.chain(next))) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:274:25 [INFO] [stderr] | [INFO] [stderr] 274 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:108:48 [INFO] [stderr] | [INFO] [stderr] 108 | FromIteratorGenerator::new(($($placeholder::arbitrary()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:112:47 [INFO] [stderr] | [INFO] [stderr] 112 | FromIteratorShrinker::new(($($placeholder::shrink()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:108:48 [INFO] [stderr] | [INFO] [stderr] 108 | FromIteratorGenerator::new(($($placeholder::arbitrary()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:7:23 [INFO] [stderr] | [INFO] [stderr] 7 | pub iterator: Box>> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:33:31 [INFO] [stderr] | [INFO] [stderr] 33 | fn iterator(&self) -> Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:78:28 [INFO] [stderr] | [INFO] [stderr] 78 | where F: Fn(&T) -> Box> + 'static [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:89:28 [INFO] [stderr] | [INFO] [stderr] 89 | where F: Fn(&T) -> Box> + 'static [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:93:31 [INFO] [stderr] | [INFO] [stderr] 93 | fn iterator(&self) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:109:32 [INFO] [stderr] | [INFO] [stderr] 109 | where F: Fn(&S, &T) -> Box> + 'static [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:121:32 [INFO] [stderr] | [INFO] [stderr] 121 | where F: Fn(&S, &T) -> Box> + 'static [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:125:31 [INFO] [stderr] | [INFO] [stderr] 125 | fn iterator(&self) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:65:33 [INFO] [stderr] | [INFO] [stderr] 65 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 89 | macro_tuples_impl!{tuple_impls} [INFO] [stderr] | ------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:105:37 [INFO] [stderr] | [INFO] [stderr] 105 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 132 | int_impls! { i8, i16, i32, i64, isize } [INFO] [stderr] | --------------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:148:37 [INFO] [stderr] | [INFO] [stderr] 148 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] ... [INFO] [stderr] 163 | uint_impls! { u8, u16, u32, u64, usize } [INFO] [stderr] | ---------------------------------------- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:185:25 [INFO] [stderr] | [INFO] [stderr] 185 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:197:54 [INFO] [stderr] | [INFO] [stderr] 197 | .fold(Box::new(iter::empty()) as Box>, |it, next| Box::new(it.chain(next)) ) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:210:42 [INFO] [stderr] | [INFO] [stderr] 210 | ) as Box> [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:213:62 [INFO] [stderr] | [INFO] [stderr] 213 | .fold(Box::new(iter::empty()) as Box>, |it, next| Box::new(it.chain(next))) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/shrink.rs:274:25 [INFO] [stderr] | [INFO] [stderr] 274 | type Iterator = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:108:48 [INFO] [stderr] | [INFO] [stderr] 108 | FromIteratorGenerator::new(($($placeholder::arbitrary()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:112:47 [INFO] [stderr] | [INFO] [stderr] 112 | FromIteratorShrinker::new(($($placeholder::shrink()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:108:48 [INFO] [stderr] | [INFO] [stderr] 108 | FromIteratorGenerator::new(($($placeholder::arbitrary()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:7:23 [INFO] [stderr] | [INFO] [stderr] 7 | pub iterator: Box>> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:33:31 [INFO] [stderr] | [INFO] [stderr] 33 | fn iterator(&self) -> Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:78:28 [INFO] [stderr] | [INFO] [stderr] 78 | where F: Fn(&T) -> Box> + 'static [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:89:28 [INFO] [stderr] | [INFO] [stderr] 89 | where F: Fn(&T) -> Box> + 'static [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:93:31 [INFO] [stderr] | [INFO] [stderr] 93 | fn iterator(&self) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:109:32 [INFO] [stderr] | [INFO] [stderr] 109 | where F: Fn(&S, &T) -> Box> + 'static [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:121:32 [INFO] [stderr] | [INFO] [stderr] 121 | where F: Fn(&S, &T) -> Box> + 'static [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rose.rs:125:31 [INFO] [stderr] | [INFO] [stderr] 125 | fn iterator(&self) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: lifetime may not live long enough [INFO] [stderr] --> src/generate.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 13 | impl <'a, R: ?Sized + 'a> GenerateCtx<'a, R> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] ... [INFO] [stderr] 19 | pub fn chop<'b>(&'b mut self) -> GenerateCtx<'b, R> [INFO] [stderr] | -- lifetime `'b` defined here [INFO] [stderr] ... [INFO] [stderr] 22 | Self::new(self.rng, self.size/2) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ argument requires that `'b` must outlive `'a` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning: lifetime may not live long enough [INFO] [stderr] --> src/generate.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 13 | impl <'a, R: ?Sized + 'a> GenerateCtx<'a, R> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] ... [INFO] [stderr] 19 | pub fn chop<'b>(&'b mut self) -> GenerateCtx<'b, R> [INFO] [stderr] | -- lifetime `'b` defined here [INFO] [stderr] ... [INFO] [stderr] 22 | Self::new(self.rng, self.size/2) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ argument requires that `'b` must outlive `'a` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.72s [INFO] running `"docker" "inspect" "88ac5a07e969d3e66c887f3cb37b9e11e4fd6b957dc1fe3f4fd2e50508e688d4"` [INFO] running `"docker" "rm" "-f" "88ac5a07e969d3e66c887f3cb37b9e11e4fd6b957dc1fe3f4fd2e50508e688d4"` [INFO] [stdout] 88ac5a07e969d3e66c887f3cb37b9e11e4fd6b957dc1fe3f4fd2e50508e688d4