[INFO] fetching crate cfg-match 0.2.1...
[INFO] checking cfg-match-0.2.1 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate cfg-match 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate cfg-match 0.2.1 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cfg-match 0.2.1
[INFO] finished tweaking crates.io crate cfg-match 0.2.1
[INFO] tweaked toml for crates.io crate cfg-match 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cc3993f033cd4f8a35745a7c962aa6b393ed19a0317329d764bbe214a6b664b
[INFO] running `Command { std: "docker" "start" "-a" "6cc3993f033cd4f8a35745a7c962aa6b393ed19a0317329d764bbe214a6b664b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cc3993f033cd4f8a35745a7c962aa6b393ed19a0317329d764bbe214a6b664b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc3993f033cd4f8a35745a7c962aa6b393ed19a0317329d764bbe214a6b664b", kill_on_drop: false }`
[INFO] [stdout] 6cc3993f033cd4f8a35745a7c962aa6b393ed19a0317329d764bbe214a6b664b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf331967c9437218a9d248f7df30a30fc388898c6ea99bd701583e6e3a8c781d
[INFO] running `Command { std: "docker" "start" "-a" "bf331967c9437218a9d248f7df30a30fc388898c6ea99bd701583e6e3a8c781d", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-match v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]  --> tests/smoke.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | cfg_match! {
[INFO] [stdout]   | ^^^^^^^^^ ambiguous name
[INFO] [stdout]   |
[INFO] [stdout]   = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]   = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]  --> tests/smoke.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cfg_match::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]   = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]   --> tests/smoke.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | cfg_match! {
[INFO] [stdout]    | ^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]    = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]   --> tests/smoke.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use cfg_match::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]    = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]   --> tests/smoke.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let f = cfg_match! {
[INFO] [stdout]    |             ^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]    = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]   --> tests/smoke.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use cfg_match::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]    = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]   --> tests/smoke.rs:43:10
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let f = cfg_match! {
[INFO] [stdout]    |             ^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]    = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]   --> tests/smoke.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use cfg_match::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]    = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]   --> tests/smoke.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | cfg_match! {
[INFO] [stdout]    | ^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]    = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]   --> tests/smoke.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use cfg_match::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]    = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> tests/smoke.rs:32:11
[INFO] [stdout]    |
[INFO] [stdout] 32 |         test => ({
[INFO] [stdout]    |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 35 |         }),
[INFO] [stdout]    |          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 ~         test => {
[INFO] [stdout] 33 |             println!("whee");
[INFO] [stdout] 34 |             true
[INFO] [stdout] 35 ~         },
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> tests/smoke.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |         test => ({
[INFO] [stdout]    |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 48 |         }),
[INFO] [stdout]    |          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 45 ~         test => {
[INFO] [stdout] 46 |             println!("whee");
[INFO] [stdout] 47 |             true
[INFO] [stdout] 48 ~         },
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cfg-match` (test "smoke") due to 6 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "bf331967c9437218a9d248f7df30a30fc388898c6ea99bd701583e6e3a8c781d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf331967c9437218a9d248f7df30a30fc388898c6ea99bd701583e6e3a8c781d", kill_on_drop: false }`
[INFO] [stdout] bf331967c9437218a9d248f7df30a30fc388898c6ea99bd701583e6e3a8c781d
[INFO] checking cfg-match-0.2.1 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate cfg-match 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cfg-match 0.2.1 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cfg-match 0.2.1
[INFO] finished tweaking crates.io crate cfg-match 0.2.1
[INFO] tweaked toml for crates.io crate cfg-match 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f34b18509e265b7b43c686ec258dc766d4c2c19a9807aac48d3be269e3389a73
[INFO] running `Command { std: "docker" "start" "-a" "f34b18509e265b7b43c686ec258dc766d4c2c19a9807aac48d3be269e3389a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f34b18509e265b7b43c686ec258dc766d4c2c19a9807aac48d3be269e3389a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f34b18509e265b7b43c686ec258dc766d4c2c19a9807aac48d3be269e3389a73", kill_on_drop: false }`
[INFO] [stdout] f34b18509e265b7b43c686ec258dc766d4c2c19a9807aac48d3be269e3389a73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14adbcc23c5f6381c43bf5856b6def14da53f978a706bce915b8a11dd1dc358b
[INFO] running `Command { std: "docker" "start" "-a" "14adbcc23c5f6381c43bf5856b6def14da53f978a706bce915b8a11dd1dc358b", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-match v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]  --> tests/smoke.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | cfg_match! {
[INFO] [stdout]   | ^^^^^^^^^ ambiguous name
[INFO] [stdout]   |
[INFO] [stdout]   = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]   = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]  --> tests/smoke.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cfg_match::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]   = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]   --> tests/smoke.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | cfg_match! {
[INFO] [stdout]    | ^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]    = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]   --> tests/smoke.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use cfg_match::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]    = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]   --> tests/smoke.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let f = cfg_match! {
[INFO] [stdout]    |             ^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]    = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]   --> tests/smoke.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use cfg_match::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]    = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]   --> tests/smoke.rs:43:10
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let f = cfg_match! {
[INFO] [stdout]    |             ^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]    = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]   --> tests/smoke.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use cfg_match::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]    = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `cfg_match` is ambiguous
[INFO] [stdout]   --> tests/smoke.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | cfg_match! {
[INFO] [stdout]    | ^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]    = note: `cfg_match` could refer to a macro from prelude
[INFO] [stdout] note: `cfg_match` could also refer to the macro imported here
[INFO] [stdout]   --> tests/smoke.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use cfg_match::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `cfg_match` to disambiguate
[INFO] [stdout]    = help: or use `crate::cfg_match` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> tests/smoke.rs:32:11
[INFO] [stdout]    |
[INFO] [stdout] 32 |         test => ({
[INFO] [stdout]    |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 35 |         }),
[INFO] [stdout]    |          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 ~         test => {
[INFO] [stdout] 33 |             println!("whee");
[INFO] [stdout] 34 |             true
[INFO] [stdout] 35 ~         },
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> tests/smoke.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |         test => ({
[INFO] [stdout]    |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 48 |         }),
[INFO] [stdout]    |          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 45 ~         test => {
[INFO] [stdout] 46 |             println!("whee");
[INFO] [stdout] 47 |             true
[INFO] [stdout] 48 ~         },
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cfg-match` (test "smoke") due to 6 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "14adbcc23c5f6381c43bf5856b6def14da53f978a706bce915b8a11dd1dc358b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14adbcc23c5f6381c43bf5856b6def14da53f978a706bce915b8a11dd1dc358b", kill_on_drop: false }`
[INFO] [stdout] 14adbcc23c5f6381c43bf5856b6def14da53f978a706bce915b8a11dd1dc358b
