[INFO] crate visit_diff 0.1.0 is already in cache
[INFO] extracting crate visit_diff 0.1.0 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/visit_diff/0.1.0
[INFO] extracting crate visit_diff 0.1.0 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/visit_diff/0.1.0
[INFO] validating manifest of visit_diff-0.1.0 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of visit_diff-0.1.0 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing visit_diff-0.1.0
[INFO] finished frobbing visit_diff-0.1.0
[INFO] frobbed toml for visit_diff-0.1.0 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/visit_diff/0.1.0/Cargo.toml
[INFO] started frobbing visit_diff-0.1.0
[INFO] finished frobbing visit_diff-0.1.0
[INFO] frobbed toml for visit_diff-0.1.0 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/visit_diff/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking visit_diff-0.1.0 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-3/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/visit_diff/0.1.0:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bf7f50f014092c91bafeb1fd5c268c08f85e8d94a1393212b60de82cc7e37be4
[INFO] running `"docker" "start" "-a" "bf7f50f014092c91bafeb1fd5c268c08f85e8d94a1393212b60de82cc7e37be4"`
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling visit_diff_derive v0.1.0
[INFO] [stderr]     Checking visit_diff v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/debug.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Debug`
[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/debug.rs:25:40
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/debug.rs:29:23
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn same(self, a: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/debug.rs:29:34
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn same(self, a: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/detect.rs:203:29
[INFO] [stderr]     |
[INFO] [stderr] 203 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/detect.rs:203:40
[INFO] [stderr]     |
[INFO] [stderr] 203 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/detect.rs:207:23
[INFO] [stderr]     |
[INFO] [stderr] 207 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/detect.rs:207:34
[INFO] [stderr]     |
[INFO] [stderr] 207 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/unit.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/unit.rs:20:40
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/unit.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/unit.rs:24:34
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constant.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constant.rs:42:40
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constant.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constant.rs:46:34
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `EitherOrBoth` is imported redundantly
[INFO] [stderr]    --> src/std_impls.rs:114:25
[INFO] [stderr]     |
[INFO] [stderr] 1   | use super::*;
[INFO] [stderr]     |     -------- the item `EitherOrBoth` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 114 |         use itertools::{EitherOrBoth, Itertools};
[INFO] [stderr]     |                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Itertools` is imported redundantly
[INFO] [stderr]    --> src/std_impls.rs:114:39
[INFO] [stderr]     |
[INFO] [stderr] 1   | use super::*;
[INFO] [stderr]     |     -------- the item `Itertools` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 114 |         use itertools::{EitherOrBoth, Itertools};
[INFO] [stderr]     |                                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `EitherOrBoth` is imported redundantly
[INFO] [stderr]    --> src/std_impls.rs:167:25
[INFO] [stderr]     |
[INFO] [stderr] 1   | use super::*;
[INFO] [stderr]     |     -------- the item `EitherOrBoth` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 167 |         use itertools::{EitherOrBoth, Itertools};
[INFO] [stderr]     |                         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Itertools` is imported redundantly
[INFO] [stderr]    --> src/std_impls.rs:167:39
[INFO] [stderr]     |
[INFO] [stderr] 1   | use super::*;
[INFO] [stderr]     |     -------- the item `Itertools` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 167 |         use itertools::{EitherOrBoth, Itertools};
[INFO] [stderr]     |                                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/record.rs:115:29
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/record.rs:115:40
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/record.rs:119:23
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn same(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/record.rs:119:34
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn same(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:305:29
[INFO] [stderr]     |
[INFO] [stderr] 305 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err>;
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:305:40
[INFO] [stderr]     |
[INFO] [stderr] 305 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err>;
[INFO] [stderr]     |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:309:23
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn same(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err>;
[INFO] [stderr]     |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:309:34
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn same(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err>;
[INFO] [stderr]     |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/debug.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Debug`
[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/debug.rs:25:40
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/debug.rs:29:23
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn same(self, a: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/debug.rs:29:34
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn same(self, a: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/detect.rs:203:29
[INFO] [stderr]     |
[INFO] [stderr] 203 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/detect.rs:203:40
[INFO] [stderr]     |
[INFO] [stderr] 203 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/detect.rs:207:23
[INFO] [stderr]     |
[INFO] [stderr] 207 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/detect.rs:207:34
[INFO] [stderr]     |
[INFO] [stderr] 207 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/unit.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/unit.rs:20:40
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/unit.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/unit.rs:24:34
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constant.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constant.rs:42:40
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn difference(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constant.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constant.rs:46:34
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn same(self, _: &Debug, _: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `EitherOrBoth` is imported redundantly
[INFO] [stderr]    --> src/std_impls.rs:114:25
[INFO] [stderr]     |
[INFO] [stderr] 1   | use super::*;
[INFO] [stderr]     |     -------- the item `EitherOrBoth` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 114 |         use itertools::{EitherOrBoth, Itertools};
[INFO] [stderr]     |                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Itertools` is imported redundantly
[INFO] [stderr]    --> src/std_impls.rs:114:39
[INFO] [stderr]     |
[INFO] [stderr] 1   | use super::*;
[INFO] [stderr]     |     -------- the item `Itertools` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 114 |         use itertools::{EitherOrBoth, Itertools};
[INFO] [stderr]     |                                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `EitherOrBoth` is imported redundantly
[INFO] [stderr]    --> src/std_impls.rs:167:25
[INFO] [stderr]     |
[INFO] [stderr] 1   | use super::*;
[INFO] [stderr]     |     -------- the item `EitherOrBoth` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 167 |         use itertools::{EitherOrBoth, Itertools};
[INFO] [stderr]     |                         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Itertools` is imported redundantly
[INFO] [stderr]    --> src/std_impls.rs:167:39
[INFO] [stderr]     |
[INFO] [stderr] 1   | use super::*;
[INFO] [stderr]     |     -------- the item `Itertools` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 167 |         use itertools::{EitherOrBoth, Itertools};
[INFO] [stderr]     |                                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/record.rs:115:29
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/record.rs:115:40
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/record.rs:119:23
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn same(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/record.rs:119:34
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn same(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err> {
[INFO] [stderr]     |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:305:29
[INFO] [stderr]     |
[INFO] [stderr] 305 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err>;
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:305:40
[INFO] [stderr]     |
[INFO] [stderr] 305 |     fn difference(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err>;
[INFO] [stderr]     |                                        ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:309:23
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn same(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err>;
[INFO] [stderr]     |                       ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:309:34
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn same(self, a: &Debug, b: &Debug) -> Result<Self::Ok, Self::Err>;
[INFO] [stderr]     |                                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `First`
[INFO] [stderr]    --> src/impls.rs:381:9
[INFO] [stderr]     |
[INFO] [stderr] 381 |         First,
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Second`
[INFO] [stderr]    --> src/impls.rs:382:9
[INFO] [stderr]     |
[INFO] [stderr] 382 |         Second,
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Struct`
[INFO] [stderr]    --> src/impls.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         Struct { a: usize, b: bool },
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.12s
[INFO] running `"docker" "inspect" "bf7f50f014092c91bafeb1fd5c268c08f85e8d94a1393212b60de82cc7e37be4"`
[INFO] running `"docker" "rm" "-f" "bf7f50f014092c91bafeb1fd5c268c08f85e8d94a1393212b60de82cc7e37be4"`
[INFO] [stdout] bf7f50f014092c91bafeb1fd5c268c08f85e8d94a1393212b60de82cc7e37be4