[INFO] updating cached repository https://github.com/ivoelbert/tigerust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/ivoelbert/tigerust
[INFO] [stderr]    00f6a1d..9661891  master     -> master
[INFO] [stderr]  * [new branch]      move_tests -> move_tests
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9661891934e99fe92985186b29752c67a4f243f4
[INFO] checking ivoelbert/tigerust against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivoelbert%2Ftigerust" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ivoelbert/tigerust on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ivoelbert/tigerust
[INFO] finished tweaking git repo https://github.com/ivoelbert/tigerust
[INFO] tweaked toml for git repo https://github.com/ivoelbert/tigerust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ivoelbert/tigerust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1323bba7822a4ac514510b4fb3a297fec5b4f20d4d887448d107f9e73313ebef
[INFO] running `"docker" "start" "-a" "1323bba7822a4ac514510b4fb3a297fec5b4f20d4d887448d107f9e73313ebef"`
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.34
[INFO] [stderr]    Compiling wasm-bindgen v0.2.34
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling lalrpop-util v0.17.1
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling ena v0.13.0
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.34
[INFO] [stderr]    Compiling regex v1.2.0
[INFO] [stderr]     Checking nanoid v0.2.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]     Checking pathfinding v1.1.12
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.34
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.34
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.34
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.1
[INFO] [stderr]     Checking js-sys v0.3.11
[INFO] [stderr]     Checking console_error_panic_hook v0.1.5
[INFO] [stderr]     Checking wasm-bindgen-futures v0.3.11
[INFO] [stderr]     Checking wasm-bindgen-test v0.2.34
[INFO] [stderr]    Compiling tigerust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:3851:5
[INFO] [stderr]      |
[INFO] [stderr] 3851 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:3919:5
[INFO] [stderr]      |
[INFO] [stderr] 3919 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:3968:5
[INFO] [stderr]      |
[INFO] [stderr] 3968 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:3989:5
[INFO] [stderr]      |
[INFO] [stderr] 3989 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4018:5
[INFO] [stderr]      |
[INFO] [stderr] 4018 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4044:5
[INFO] [stderr]      |
[INFO] [stderr] 4044 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4072:5
[INFO] [stderr]      |
[INFO] [stderr] 4072 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4114:5
[INFO] [stderr]      |
[INFO] [stderr] 4114 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4135:5
[INFO] [stderr]      |
[INFO] [stderr] 4135 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4204:5
[INFO] [stderr]      |
[INFO] [stderr] 4204 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4241:5
[INFO] [stderr]      |
[INFO] [stderr] 4241 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4278:5
[INFO] [stderr]      |
[INFO] [stderr] 4278 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4434:5
[INFO] [stderr]      |
[INFO] [stderr] 4434 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4459:5
[INFO] [stderr]      |
[INFO] [stderr] 4459 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4640:5
[INFO] [stderr]      |
[INFO] [stderr] 4640 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4648:5
[INFO] [stderr]      |
[INFO] [stderr] 4648 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/typecheck/letexp.rs:283:55
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn sort_decs(decs: &[(_TypeDec, Pos)], order: Vec<(Symbol)>, record_names: Vec<(Symbol)>) -> (Vec<&(_TypeDec, Pos)>, Vec<&(_TypeDec, Pos)>) {
[INFO] [stderr]     |                                                       ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/typecheck/letexp.rs:283:84
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn sort_decs(decs: &[(_TypeDec, Pos)], order: Vec<(Symbol)>, record_names: Vec<(Symbol)>) -> (Vec<&(_TypeDec, Pos)>, Vec<&(_TypeDec, Pos)>) {
[INFO] [stderr]     |                                                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/tree/translate/mod.rs:93:38
[INFO] [stderr]    |
[INFO] [stderr] 93 | pub fn translate(exp: AST) -> Result<(Vec<Fragment>), TransError> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:3851:5
[INFO] [stderr]      |
[INFO] [stderr] 3851 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:3919:5
[INFO] [stderr]      |
[INFO] [stderr] 3919 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:3968:5
[INFO] [stderr]      |
[INFO] [stderr] 3968 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:3989:5
[INFO] [stderr]      |
[INFO] [stderr] 3989 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4018:5
[INFO] [stderr]      |
[INFO] [stderr] 4018 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4044:5
[INFO] [stderr]      |
[INFO] [stderr] 4044 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4072:5
[INFO] [stderr]      |
[INFO] [stderr] 4072 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4114:5
[INFO] [stderr]      |
[INFO] [stderr] 4114 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4135:5
[INFO] [stderr]      |
[INFO] [stderr] 4135 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4204:5
[INFO] [stderr]      |
[INFO] [stderr] 4204 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4241:5
[INFO] [stderr]      |
[INFO] [stderr] 4241 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4278:5
[INFO] [stderr]      |
[INFO] [stderr] 4278 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4434:5
[INFO] [stderr]      |
[INFO] [stderr] 4434 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4459:5
[INFO] [stderr]      |
[INFO] [stderr] 4459 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4640:5
[INFO] [stderr]      |
[INFO] [stderr] 4640 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/tigerust-eb12f8aa45321ff2/out/parser.rs:4648:5
[INFO] [stderr]      |
[INFO] [stderr] 4648 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/typecheck/letexp.rs:283:55
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn sort_decs(decs: &[(_TypeDec, Pos)], order: Vec<(Symbol)>, record_names: Vec<(Symbol)>) -> (Vec<&(_TypeDec, Pos)>, Vec<&(_TypeDec, Pos)>) {
[INFO] [stderr]     |                                                       ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/typecheck/letexp.rs:283:84
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn sort_decs(decs: &[(_TypeDec, Pos)], order: Vec<(Symbol)>, record_names: Vec<(Symbol)>) -> (Vec<&(_TypeDec, Pos)>, Vec<&(_TypeDec, Pos)>) {
[INFO] [stderr]     |                                                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/tree/translate/mod.rs:93:38
[INFO] [stderr]    |
[INFO] [stderr] 93 | pub fn translate(exp: AST) -> Result<(Vec<Fragment>), TransError> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | #![feature(bind_by_move_pattern_guards)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/tree/mod.rs:64:15
[INFO] [stderr]    |
[INFO] [stderr] 64 |     externals.into_iter().map(|name| -> (String, EnvEntry) {
[INFO] [stderr]    |               ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | #![feature(bind_by_move_pattern_guards)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/tree/mod.rs:64:15
[INFO] [stderr]    |
[INFO] [stderr] 64 |     externals.into_iter().map(|name| -> (String, EnvEntry) {
[INFO] [stderr]    |               ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 50s
[INFO] running `"docker" "inspect" "1323bba7822a4ac514510b4fb3a297fec5b4f20d4d887448d107f9e73313ebef"`
[INFO] running `"docker" "rm" "-f" "1323bba7822a4ac514510b4fb3a297fec5b4f20d4d887448d107f9e73313ebef"`
[INFO] [stdout] 1323bba7822a4ac514510b4fb3a297fec5b4f20d4d887448d107f9e73313ebef