[INFO] fetching crate lalrpop-lambda 0.6.1...
[INFO] building lalrpop-lambda-0.6.1 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate lalrpop-lambda 0.6.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate lalrpop-lambda 0.6.1 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lalrpop-lambda 0.6.1
[INFO] finished tweaking crates.io crate lalrpop-lambda 0.6.1
[INFO] tweaked toml for crates.io crate lalrpop-lambda 0.6.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate lalrpop-lambda 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b923308544966ab5b3d22c8ac96f2884c887c29c3c6f21500a3b77ecf7a3b9a2
[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" "b923308544966ab5b3d22c8ac96f2884c887c29c3c6f21500a3b77ecf7a3b9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b923308544966ab5b3d22c8ac96f2884c887c29c3c6f21500a3b77ecf7a3b9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b923308544966ab5b3d22c8ac96f2884c887c29c3c6f21500a3b77ecf7a3b9a2", kill_on_drop: false }`
[INFO] [stdout] b923308544966ab5b3d22c8ac96f2884c887c29c3c6f21500a3b77ecf7a3b9a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6745111af6be4a9eb223e44d4460ccc72489e2af478c6f4b807b6ac508782ca9
[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" "6745111af6be4a9eb223e44d4460ccc72489e2af478c6f4b807b6ac508782ca9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.45
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling bumpalo v2.4.3
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling opaque-debug v0.2.2
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling lalrpop-util v0.17.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling wasm-bindgen v0.2.45
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.7
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling ena v0.13.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[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 v0.2.45
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.45
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.45
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.0
[INFO] [stderr]    Compiling lalrpop-lambda v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: identifier pair considered confusable between `y` and `γ`
[INFO] [stdout]    --> src/macros.rs:144:14
[INFO] [stdout]     |
[INFO] [stdout] 144 | macro_rules! γ {
[INFO] [stdout]     |              ^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/lib.rs:347:51
[INFO] [stdout]     |
[INFO] [stdout] 347 |         assert_eq!(set! { variable!(x), variable!(y) },
[INFO] [stdout]     |                                                   - this is where the previous identifier occurred
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(confusable_idents)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:2949:5
[INFO] [stdout]      |
[INFO] [stdout] 2949 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:2960:5
[INFO] [stdout]      |
[INFO] [stdout] 2960 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3085:5
[INFO] [stdout]      |
[INFO] [stdout] 3085 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3096:5
[INFO] [stdout]      |
[INFO] [stdout] 3096 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3201:5
[INFO] [stdout]      |
[INFO] [stdout] 3201 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3235:5
[INFO] [stdout]      |
[INFO] [stdout] 3235 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![feature(non_ascii_idents,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "6745111af6be4a9eb223e44d4460ccc72489e2af478c6f4b807b6ac508782ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6745111af6be4a9eb223e44d4460ccc72489e2af478c6f4b807b6ac508782ca9", kill_on_drop: false }`
[INFO] [stdout] 6745111af6be4a9eb223e44d4460ccc72489e2af478c6f4b807b6ac508782ca9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee516299bf4526a5ea9ed2fbb2fa1ed7c0cf540745424e4d8a716f0fcc96bf4a
[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" "ee516299bf4526a5ea9ed2fbb2fa1ed7c0cf540745424e4d8a716f0fcc96bf4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stdout] warning: identifier pair considered confusable between `y` and `γ`
[INFO] [stdout]    --> src/macros.rs:144:14
[INFO] [stdout]     |
[INFO] [stdout] 144 | macro_rules! γ {
[INFO] [stdout]     |              ^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/lib.rs:347:51
[INFO] [stdout]     |
[INFO] [stdout] 347 |         assert_eq!(set! { variable!(x), variable!(y) },
[INFO] [stdout]     |                                                   - this is where the previous identifier occurred
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(confusable_idents)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:2949:5
[INFO] [stdout]      |
[INFO] [stdout] 2949 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:2960:5
[INFO] [stdout]      |
[INFO] [stdout] 2960 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3085:5
[INFO] [stdout]      |
[INFO] [stdout] 3085 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3096:5
[INFO] [stdout]      |
[INFO] [stdout] 3096 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3201:5
[INFO] [stdout]      |
[INFO] [stdout] 3201 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3235:5
[INFO] [stdout]      |
[INFO] [stdout] 3235 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![feature(non_ascii_idents,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling csv v1.0.7
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling tinytemplate v1.0.2
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling lalrpop-lambda v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: identifier pair considered confusable between `γ` and `y`
[INFO] [stdout]   --> examples/macros.rs:45:27
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let one = λ!{f.λ!{x.γ!(f, x)}};
[INFO] [stdout]    |                         - this is where the previous identifier occurred
[INFO] [stdout] ...
[INFO] [stdout] 45 |     println!("{}", abs!{x y.app!(x,y)});
[INFO] [stdout]    |                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(confusable_idents)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/y.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(non_ascii_idents)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/macros.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(non_ascii_idents, box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/encode.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(non_ascii_idents, box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/env.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(non_ascii_idents, box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/parse.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(non_ascii_idents)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: identifier pair considered confusable between `y` and `γ`
[INFO] [stdout]    --> src/macros.rs:144:14
[INFO] [stdout]     |
[INFO] [stdout] 144 | macro_rules! γ {
[INFO] [stdout]     |              ^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/lib.rs:347:51
[INFO] [stdout]     |
[INFO] [stdout] 347 |         assert_eq!(set! { variable!(x), variable!(y) },
[INFO] [stdout]     |                                                   - this is where the previous identifier occurred
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(confusable_idents)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:2949:5
[INFO] [stdout]      |
[INFO] [stdout] 2949 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:2960:5
[INFO] [stdout]      |
[INFO] [stdout] 2960 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3085:5
[INFO] [stdout]      |
[INFO] [stdout] 3085 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3096:5
[INFO] [stdout]      |
[INFO] [stdout] 3096 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3201:5
[INFO] [stdout]      |
[INFO] [stdout] 3201 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lalrpop-lambda-aaac3e9212b6917f/out/parse.rs:3235:5
[INFO] [stdout]      |
[INFO] [stdout] 3235 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![feature(non_ascii_idents,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 22.34s
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee516299bf4526a5ea9ed2fbb2fa1ed7c0cf540745424e4d8a716f0fcc96bf4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee516299bf4526a5ea9ed2fbb2fa1ed7c0cf540745424e4d8a716f0fcc96bf4a", kill_on_drop: false }`
[INFO] [stdout] ee516299bf4526a5ea9ed2fbb2fa1ed7c0cf540745424e4d8a716f0fcc96bf4a
