[INFO] cloning repository https://github.com/vic1707/xprs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vic1707/xprs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvic1707%2Fxprs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvic1707%2Fxprs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 701d05c0865fedd05c63524d682f4171d9e31be7
[INFO] testing vic1707/xprs against 1.99.0-beta.8 for beta-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvic1707%2Fxprs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/vic1707/xprs
[INFO] finished tweaking git repo https://github.com/vic1707/xprs
[INFO] tweaked toml for git repo https://github.com/vic1707/xprs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vic1707/xprs on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vic1707/xprs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded terminal_size v0.3.0
[INFO] [stderr]   Downloaded semver v1.0.22
[INFO] [stderr]   Downloaded unicode-width v0.1.11
[INFO] [stderr]   Downloaded supports-hyperlinks v3.0.0
[INFO] [stderr]   Downloaded supports-color v3.0.0
[INFO] [stderr]   Downloaded is_ci v1.2.0
[INFO] [stderr]   Downloaded supports-unicode v3.0.0
[INFO] [stderr]   Downloaded miette-derive v7.2.0
[INFO] [stderr]   Downloaded bitflags v2.4.2
[INFO] [stderr]   Downloaded owo-colors v4.0.0
[INFO] [stderr]   Downloaded miette v7.2.0
[INFO] [stderr]   Downloaded rustix v0.38.31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25
[INFO] running `Command { std: "docker" "start" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling is_ci v1.2.0
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling unicode-linebreak v0.1.5
[INFO] [stderr]    Compiling smawk v0.3.2
[INFO] [stderr]    Compiling supports-unicode v3.0.0
[INFO] [stderr]    Compiling supports-hyperlinks v3.0.0
[INFO] [stderr]    Compiling owo-colors v4.0.0
[INFO] [stderr]    Compiling supports-color v3.0.0
[INFO] [stderr]    Compiling textwrap v0.16.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling xprs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling terminal_size v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling miette-derive v7.2.0
[INFO] [stderr]    Compiling miette v7.2.0
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]    --> src/lib.rs:308:13
[INFO] [stdout]     |
[INFO] [stdout] 308 | #![cfg_attr(NIGHTLY, feature(box_patterns, float_gamma))]
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 34 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/element/simplify.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 59 |             #[cfg(NIGHTLY)]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/element/simplify.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 |             #[cfg(NIGHTLY)]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/element/simplify.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |             #[cfg(NIGHTLY)]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]    --> src/element/simplify.rs:119:19
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[cfg(NIGHTLY)]
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]    --> src/element/simplify.rs:162:19
[INFO] [stdout]     |
[INFO] [stdout] 162 |             #[cfg(NIGHTLY)]
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]  --> src/utils/factorial.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(not(NIGHTLY))]
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/utils/factorial.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg(not(NIGHTLY))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/utils/factorial.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(NIGHTLY)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:54:22
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub const fn ctx(&self) -> &Context {
[INFO] [stdout]    |                      ^^^^^     ^^^^^^^^
[INFO] [stdout]    |                      |         ||
[INFO] [stdout]    |                      |         |the same lifetime is hidden here
[INFO] [stdout]    |                      |         the same lifetime is elided here
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub const fn ctx(&self) -> &Context<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/token/function.rs:103:40
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 Self::Static(func2) => func1 == func2,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 103 -                 Self::Static(func2) => func1 == func2,
[INFO] [stdout] 103 +                 Self::Static(func2) => std::ptr::fn_addr_eq(func1, func2),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]   --> src/element/simplify.rs:63:36
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 lhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]   --> src/element/simplify.rs:71:36
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]   --> src/element/simplify.rs:98:36
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:123:35
[INFO] [stdout]     |
[INFO] [stdout] 123 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 124 | |                         op: Minus,
[INFO] [stdout] 125 | |                         operand: lhs,
[INFO] [stdout] 126 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:128:35
[INFO] [stdout]     |
[INFO] [stdout] 128 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 129 | |                         op: Minus,
[INFO] [stdout] 130 | |                         operand: rhs,
[INFO] [stdout] 131 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:166:35
[INFO] [stdout]     |
[INFO] [stdout] 166 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 167 | |                         op: Minus,
[INFO] [stdout] 168 | |                         operand: lhs,
[INFO] [stdout] 169 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:171:35
[INFO] [stdout]     |
[INFO] [stdout] 171 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 172 | |                         op: Minus,
[INFO] [stdout] 173 | |                         operand: rhs,
[INFO] [stdout] 174 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.06s
[INFO] running `Command { std: "docker" "inspect" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]    --> src/lib.rs:308:13
[INFO] [stdout]     |
[INFO] [stdout] 308 | #![cfg_attr(NIGHTLY, feature(box_patterns, float_gamma))]
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 34 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/element/simplify.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 59 |             #[cfg(NIGHTLY)]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/element/simplify.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 |             #[cfg(NIGHTLY)]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/element/simplify.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |             #[cfg(NIGHTLY)]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]    --> src/element/simplify.rs:119:19
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[cfg(NIGHTLY)]
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]    --> src/element/simplify.rs:162:19
[INFO] [stdout]     |
[INFO] [stdout] 162 |             #[cfg(NIGHTLY)]
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]  --> src/utils/factorial.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(not(NIGHTLY))]
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/utils/factorial.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg(not(NIGHTLY))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/utils/factorial.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(NIGHTLY)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:54:22
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub const fn ctx(&self) -> &Context {
[INFO] [stdout]    |                      ^^^^^     ^^^^^^^^
[INFO] [stdout]    |                      |         ||
[INFO] [stdout]    |                      |         |the same lifetime is hidden here
[INFO] [stdout]    |                      |         the same lifetime is elided here
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub const fn ctx(&self) -> &Context<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/token/function.rs:103:40
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 Self::Static(func2) => func1 == func2,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 103 -                 Self::Static(func2) => func1 == func2,
[INFO] [stdout] 103 +                 Self::Static(func2) => std::ptr::fn_addr_eq(func1, func2),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]   --> src/element/simplify.rs:63:36
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 lhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]   --> src/element/simplify.rs:71:36
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]   --> src/element/simplify.rs:98:36
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:123:35
[INFO] [stdout]     |
[INFO] [stdout] 123 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 124 | |                         op: Minus,
[INFO] [stdout] 125 | |                         operand: lhs,
[INFO] [stdout] 126 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:128:35
[INFO] [stdout]     |
[INFO] [stdout] 128 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 129 | |                         op: Minus,
[INFO] [stdout] 130 | |                         operand: rhs,
[INFO] [stdout] 131 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:166:35
[INFO] [stdout]     |
[INFO] [stdout] 166 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 167 | |                         op: Minus,
[INFO] [stdout] 168 | |                         operand: lhs,
[INFO] [stdout] 169 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:171:35
[INFO] [stdout]     |
[INFO] [stdout] 171 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 172 | |                         op: Minus,
[INFO] [stdout] 173 | |                         operand: rhs,
[INFO] [stdout] 174 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling xprs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]    --> src/lib.rs:308:13
[INFO] [stdout]     |
[INFO] [stdout] 308 | #![cfg_attr(NIGHTLY, feature(box_patterns, float_gamma))]
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 34 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/element/simplify.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 59 |             #[cfg(NIGHTLY)]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/element/simplify.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 |             #[cfg(NIGHTLY)]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/element/simplify.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |             #[cfg(NIGHTLY)]
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]    --> src/element/simplify.rs:119:19
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[cfg(NIGHTLY)]
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]    --> src/element/simplify.rs:162:19
[INFO] [stdout]     |
[INFO] [stdout] 162 |             #[cfg(NIGHTLY)]
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]  --> src/utils/factorial.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(not(NIGHTLY))]
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/utils/factorial.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg(not(NIGHTLY))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stdout]   --> src/utils/factorial.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(NIGHTLY)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:54:22
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub const fn ctx(&self) -> &Context {
[INFO] [stdout]    |                      ^^^^^     ^^^^^^^^
[INFO] [stdout]    |                      |         ||
[INFO] [stdout]    |                      |         |the same lifetime is hidden here
[INFO] [stdout]    |                      |         the same lifetime is elided here
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub const fn ctx(&self) -> &Context<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/token/function.rs:103:40
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 Self::Static(func2) => func1 == func2,
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 103 -                 Self::Static(func2) => func1 == func2,
[INFO] [stdout] 103 +                 Self::Static(func2) => std::ptr::fn_addr_eq(func1, func2),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]   --> src/element/simplify.rs:63:36
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 lhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]   --> src/element/simplify.rs:71:36
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]   --> src/element/simplify.rs:98:36
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:123:35
[INFO] [stdout]     |
[INFO] [stdout] 123 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 124 | |                         op: Minus,
[INFO] [stdout] 125 | |                         operand: lhs,
[INFO] [stdout] 126 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:128:35
[INFO] [stdout]     |
[INFO] [stdout] 128 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 129 | |                         op: Minus,
[INFO] [stdout] 130 | |                         operand: rhs,
[INFO] [stdout] 131 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:166:35
[INFO] [stdout]     |
[INFO] [stdout] 166 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 167 | |                         op: Minus,
[INFO] [stdout] 168 | |                         operand: lhs,
[INFO] [stdout] 169 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: box pattern syntax is experimental
[INFO] [stdout]    --> src/element/simplify.rs:171:35
[INFO] [stdout]     |
[INFO] [stdout] 171 |                       Element::UnOp(box UnOp {
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 172 | |                         op: Minus,
[INFO] [stdout] 173 | |                         operand: rhs,
[INFO] [stdout] 174 | |                     }),
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stderr]    --> src/lib.rs:308:13
[INFO] [stderr]     |
[INFO] [stderr] 308 | #![cfg_attr(NIGHTLY, feature(box_patterns, float_gamma))]
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: expected names are: `docsrs`, `feature`, and `test` and 34 more
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stderr]   --> src/element/simplify.rs:59:19
[INFO] [stderr]    |
[INFO] [stderr] 59 |             #[cfg(NIGHTLY)]
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stderr]   --> src/element/simplify.rs:66:19
[INFO] [stderr]    |
[INFO] [stderr] 66 |             #[cfg(NIGHTLY)]
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stderr]   --> src/element/simplify.rs:93:19
[INFO] [stderr]    |
[INFO] [stderr] 93 |             #[cfg(NIGHTLY)]
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stderr]    --> src/element/simplify.rs:119:19
[INFO] [stderr]     |
[INFO] [stderr] 119 |             #[cfg(NIGHTLY)]
[INFO] [stderr]     |                   ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stderr]    --> src/element/simplify.rs:162:19
[INFO] [stderr]     |
[INFO] [stderr] 162 |             #[cfg(NIGHTLY)]
[INFO] [stderr]     |                   ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stderr]  --> src/utils/factorial.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[cfg(not(NIGHTLY))]
[INFO] [stderr]   |           ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider using a Cargo feature instead
[INFO] [stderr]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]            [lints.rust]
[INFO] [stderr]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stderr]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stderr]   --> src/utils/factorial.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[cfg(not(NIGHTLY))]
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `NIGHTLY`
[INFO] [stderr]   --> src/utils/factorial.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[cfg(NIGHTLY)]
[INFO] [stderr]    |       ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(NIGHTLY)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(NIGHTLY)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/parser.rs:54:22
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub const fn ctx(&self) -> &Context {
[INFO] [stderr]    |                      ^^^^^     ^^^^^^^^
[INFO] [stderr]    |                      |         ||
[INFO] [stderr]    |                      |         |the same lifetime is hidden here
[INFO] [stderr]    |                      |         the same lifetime is elided here
[INFO] [stderr]    |                      the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub const fn ctx(&self) -> &Context<'_> {
[INFO] [stderr]    |                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]    --> src/token/function.rs:103:40
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 Self::Static(func2) => func1 == func2,
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the address of the same function can vary between different codegen units
[INFO] [stderr]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stderr] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stderr]     |
[INFO] [stderr] 103 -                 Self::Static(func2) => func1 == func2,
[INFO] [stderr] 103 +                 Self::Static(func2) => std::ptr::fn_addr_eq(func1, func2),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]   --> src/element/simplify.rs:63:36
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 lhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]   --> src/element/simplify.rs:71:36
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]   --> src/element/simplify.rs:98:36
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]    --> src/element/simplify.rs:123:35
[INFO] [stderr]     |
[INFO] [stderr] 123 |                       Element::UnOp(box UnOp {
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 124 | |                         op: Minus,
[INFO] [stderr] 125 | |                         operand: lhs,
[INFO] [stderr] 126 | |                     }),
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]    --> src/element/simplify.rs:128:35
[INFO] [stderr]     |
[INFO] [stderr] 128 |                       Element::UnOp(box UnOp {
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 129 | |                         op: Minus,
[INFO] [stderr] 130 | |                         operand: rhs,
[INFO] [stderr] 131 | |                     }),
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]    --> src/element/simplify.rs:166:35
[INFO] [stderr]     |
[INFO] [stderr] 166 |                       Element::UnOp(box UnOp {
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 167 | |                         op: Minus,
[INFO] [stderr] 168 | |                         operand: lhs,
[INFO] [stderr] 169 | |                     }),
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]    --> src/element/simplify.rs:171:35
[INFO] [stderr]     |
[INFO] [stderr] 171 |                       Element::UnOp(box UnOp {
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 172 | |                         op: Minus,
[INFO] [stderr] 173 | |                         operand: rhs,
[INFO] [stderr] 174 | |                     }),
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: `xprs` (lib) generated 18 warnings (run `cargo fix --lib -p xprs` to apply 1 suggestion)
[INFO] [stderr] warning: `xprs` (lib test) generated 18 warnings (18 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/xprs-e04e1f9ed43576bb)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::parser::error::test_errors ... ok
[INFO] [stdout] test tests::parser::implicit_multiplication::test_invalid_implicit_multiplication ... ok
[INFO] [stdout] test tests::parser::implicit_multiplication::test_implicit_multiplication ... ok
[INFO] [stdout] test tests::thread_safety::test_thread_safety ... ok
[INFO] [stdout] test tests::issues::issue_15::parse_number ... ok
[INFO] [stdout] test tests::factorial::test_float_factorial ... ok
[INFO] [stdout] test tests::issues::issue_18::parse_number ... ok
[INFO] [stdout] test tests::xprs::eval::test_invalid_eval ... ok
[INFO] [stdout] test tests::xprs::simplify::test_simplify ... ok
[INFO] [stdout] test tests::xprs::hof::test_higher_order_functions ... ok
[INFO] [stdout] test tests::parser::comptime_optimizations::test_valid ... ok
[INFO] [stdout] test tests::xprs::eval::test_valid_eval ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/repl.rs (/opt/rustwide/target/debug/deps/repl-f43cb2183c30069c)
[INFO] [stderr]    Doc-tests xprs
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stdout] running 28 tests
[INFO] [stderr]   --> src/element/simplify.rs:63:36
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 lhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]   --> src/element/simplify.rs:71:36
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]   --> src/element/simplify.rs:98:36
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 rhs: Element::UnOp(box UnOp { op: Minus, operand }),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]    --> src/element/simplify.rs:123:35
[INFO] [stderr]     |
[INFO] [stderr] 123 |                       Element::UnOp(box UnOp {
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 124 | |                         op: Minus,
[INFO] [stderr] 125 | |                         operand: lhs,
[INFO] [stderr] 126 | |                     }),
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]    --> src/element/simplify.rs:128:35
[INFO] [stderr]     |
[INFO] [stderr] 128 |                       Element::UnOp(box UnOp {
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 129 | |                         op: Minus,
[INFO] [stderr] 130 | |                         operand: rhs,
[INFO] [stderr] 131 | |                     }),
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]    --> src/element/simplify.rs:166:35
[INFO] [stderr]     |
[INFO] [stderr] 166 |                       Element::UnOp(box UnOp {
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 167 | |                         op: Minus,
[INFO] [stderr] 168 | |                         operand: lhs,
[INFO] [stderr] 169 | |                     }),
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: box pattern syntax is experimental
[INFO] [stderr]    --> src/element/simplify.rs:171:35
[INFO] [stderr]     |
[INFO] [stderr] 171 |                       Element::UnOp(box UnOp {
[INFO] [stderr]     |  ___________________________________^
[INFO] [stderr] 172 | |                         op: Minus,
[INFO] [stderr] 173 | |                         operand: rhs,
[INFO] [stderr] 174 | |                     }),
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] test src/lib.rs - (line 130) ... ok
[INFO] [stdout] test src/lib.rs - (line 241) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] test src/parser.rs - parser::Parser (line 28) ... ok
[INFO] [stdout] test src/parser.rs - parser::Parser<'ctx>::parse (line 73) ... ok
[INFO] [stdout] test src/lib.rs - (line 182) ... ok
[INFO] [stdout] test src/lib.rs - (line 103) ... ok
[INFO] [stdout] test src/lib.rs - (line 89) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'_>::simplify_for_multiple (line 233) ... ok
[INFO] [stdout] test src/lib.rs - (line 162) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'_>::eval (line 55) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'_>::simplify_for (line 177) ... ok
[INFO] [stdout] test src/context.rs - context::Context (line 34) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'_>::simplify_for_in_place (line 127) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'_>::eval_unchecked (line 91) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind3 (line 447) ... ok
[INFO] [stdout] test src/lib.rs - (line 263) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'_>::simplify_for_multiple_in_place (line 203) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind6 (line 540) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind4 (line 478) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind_n_runtime (line 704) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind2 (line 416) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind8 (line 602) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind (line 385) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind7 (line 571) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind_n (line 670) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind5 (line 509) ... ok
[INFO] [stdout] test src/xprs.rs - xprs::Xprs<'a>::bind9 (line 633) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25", kill_on_drop: false }`
[INFO] [stdout] 95669c23f8c951d628ec44611854c8ded348e08190856af19779fa2f82a5cd25
