[INFO] fetching crate tinyexpr 0.1.1...
[INFO] checking tinyexpr-0.1.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate tinyexpr 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate tinyexpr 0.1.1
[INFO] finished tweaking crates.io crate tinyexpr 0.1.1
[INFO] tweaked toml for crates.io crate tinyexpr 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tinyexpr 0.1.1 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding bitflags v0.7.0 (available: v2.9.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de96ba582532f2fe8d6141af2b46aa5c1b3ccb48ee154c6fe14b2c42725bcab1
[INFO] running `Command { std: "docker" "start" "-a" "de96ba582532f2fe8d6141af2b46aa5c1b3ccb48ee154c6fe14b2c42725bcab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de96ba582532f2fe8d6141af2b46aa5c1b3ccb48ee154c6fe14b2c42725bcab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de96ba582532f2fe8d6141af2b46aa5c1b3ccb48ee154c6fe14b2c42725bcab1", kill_on_drop: false }`
[INFO] [stdout] de96ba582532f2fe8d6141af2b46aa5c1b3ccb48ee154c6fe14b2c42725bcab1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a61e470afdbedc7b46b15693f161623f75c26f34e4e590760488242db6a34f77
[INFO] running `Command { std: "docker" "start" "-a" "a61e470afdbedc7b46b15693f161623f75c26f34e4e590760488242db6a34f77", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking tinyexpr v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute `doc`
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[doc(hidden)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the built-in attribute `doc` will be ignored, since it's applied to the macro invocation `bitflags`
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | bitflags! {
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / bitflags! {
[INFO] [stdout] 31 | |     #[doc(hidden)]
[INFO] [stdout] 32 | |     pub flags ExprType: u64 {
[INFO] [stdout] 33 | |         const TE_VARIABLE  = 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / bitflags! {
[INFO] [stdout] 31 | |     #[doc(hidden)]
[INFO] [stdout] 32 | |     pub flags ExprType: u64 {
[INFO] [stdout] 33 | |         const TE_VARIABLE  = 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `is_pure`
[INFO] [stdout]   --> src/lib.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 | macro_rules! is_pure {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `is_function`
[INFO] [stdout]   --> src/lib.rs:73:14
[INFO] [stdout]    |
[INFO] [stdout] 73 | macro_rules! is_function {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `is_closure`
[INFO] [stdout]   --> src/lib.rs:77:14
[INFO] [stdout]    |
[INFO] [stdout] 77 | macro_rules! is_closure {
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:281:24
[INFO] [stdout]     |
[INFO] [stdout] 281 |             s.value  = try!(f64::from_str(&num_str));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 357 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:362:13
[INFO] [stdout]     |
[INFO] [stdout] 362 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:371:13
[INFO] [stdout]     |
[INFO] [stdout] 371 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:378:13
[INFO] [stdout]     |
[INFO] [stdout] 378 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:379:33
[INFO] [stdout]     |
[INFO] [stdout] 379 |             ret.parameters.push(try!(power(s)));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:391:13
[INFO] [stdout]     |
[INFO] [stdout] 391 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:398:21
[INFO] [stdout]     |
[INFO] [stdout] 398 |                     try!(next_token(s));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:399:41
[INFO] [stdout]     |
[INFO] [stdout] 399 |                     ret.parameters.push(try!(expr(s)));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:408:21
[INFO] [stdout]     |
[INFO] [stdout] 408 |                     try!(next_token(s));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:413:13
[INFO] [stdout]     |
[INFO] [stdout] 413 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:414:19
[INFO] [stdout]     |
[INFO] [stdout] 414 |             ret = try!(list(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 try!(next_token(s));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:437:9
[INFO] [stdout]     |
[INFO] [stdout] 437 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:443:15
[INFO] [stdout]     |
[INFO] [stdout] 443 |         ret = try!(base(s));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:445:63
[INFO] [stdout]     |
[INFO] [stdout] 445 |         ret = new_expr(TE_FUNCTION1 | TE_FLAG_PURE, Some(vec![try!(base(s)).clone()]));
[INFO] [stdout]     |                                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:454:19
[INFO] [stdout]     |
[INFO] [stdout] 454 |     let mut ret = try!(power(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:460:76
[INFO] [stdout]     |
[INFO] [stdout] 460 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(power(s)).clone()]));
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:468:19
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let mut ret = try!(factor(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:472:9
[INFO] [stdout]     |
[INFO] [stdout] 472 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:473:76
[INFO] [stdout]     |
[INFO] [stdout] 473 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(factor(s)).clone()]));
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:481:19
[INFO] [stdout]     |
[INFO] [stdout] 481 |     let mut ret = try!(term(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:485:9
[INFO] [stdout]     |
[INFO] [stdout] 485 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:486:76
[INFO] [stdout]     |
[INFO] [stdout] 486 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(term(s)).clone()]));
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:494:19
[INFO] [stdout]     |
[INFO] [stdout] 494 |     let mut ret = try!(expr(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:498:76
[INFO] [stdout]     |
[INFO] [stdout] 498 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(expr(s)).clone()]));
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:532:5
[INFO] [stdout]     |
[INFO] [stdout] 532 |     try!(next_token(&mut s));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:533:20
[INFO] [stdout]     |
[INFO] [stdout] 533 |     let mut root = try!(list(&mut s));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute `doc`
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[doc(hidden)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the built-in attribute `doc` will be ignored, since it's applied to the macro invocation `bitflags`
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | bitflags! {
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / bitflags! {
[INFO] [stdout] 31 | |     #[doc(hidden)]
[INFO] [stdout] 32 | |     pub flags ExprType: u64 {
[INFO] [stdout] 33 | |         const TE_VARIABLE  = 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / bitflags! {
[INFO] [stdout] 31 | |     #[doc(hidden)]
[INFO] [stdout] 32 | |     pub flags ExprType: u64 {
[INFO] [stdout] 33 | |         const TE_VARIABLE  = 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `is_pure`
[INFO] [stdout]   --> src/lib.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 | macro_rules! is_pure {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `is_function`
[INFO] [stdout]   --> src/lib.rs:73:14
[INFO] [stdout]    |
[INFO] [stdout] 73 | macro_rules! is_function {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `is_closure`
[INFO] [stdout]   --> src/lib.rs:77:14
[INFO] [stdout]    |
[INFO] [stdout] 77 | macro_rules! is_closure {
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:281:24
[INFO] [stdout]     |
[INFO] [stdout] 281 |             s.value  = try!(f64::from_str(&num_str));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 357 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:362:13
[INFO] [stdout]     |
[INFO] [stdout] 362 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:371:13
[INFO] [stdout]     |
[INFO] [stdout] 371 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:378:13
[INFO] [stdout]     |
[INFO] [stdout] 378 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:379:33
[INFO] [stdout]     |
[INFO] [stdout] 379 |             ret.parameters.push(try!(power(s)));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:391:13
[INFO] [stdout]     |
[INFO] [stdout] 391 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:398:21
[INFO] [stdout]     |
[INFO] [stdout] 398 |                     try!(next_token(s));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:399:41
[INFO] [stdout]     |
[INFO] [stdout] 399 |                     ret.parameters.push(try!(expr(s)));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:408:21
[INFO] [stdout]     |
[INFO] [stdout] 408 |                     try!(next_token(s));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:413:13
[INFO] [stdout]     |
[INFO] [stdout] 413 |             try!(next_token(s));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:414:19
[INFO] [stdout]     |
[INFO] [stdout] 414 |             ret = try!(list(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 try!(next_token(s));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:437:9
[INFO] [stdout]     |
[INFO] [stdout] 437 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:443:15
[INFO] [stdout]     |
[INFO] [stdout] 443 |         ret = try!(base(s));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:445:63
[INFO] [stdout]     |
[INFO] [stdout] 445 |         ret = new_expr(TE_FUNCTION1 | TE_FLAG_PURE, Some(vec![try!(base(s)).clone()]));
[INFO] [stdout]     |                                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:454:19
[INFO] [stdout]     |
[INFO] [stdout] 454 |     let mut ret = try!(power(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:460:76
[INFO] [stdout]     |
[INFO] [stdout] 460 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(power(s)).clone()]));
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:468:19
[INFO] [stdout]     |
[INFO] [stdout] 468 |     let mut ret = try!(factor(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:472:9
[INFO] [stdout]     |
[INFO] [stdout] 472 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:473:76
[INFO] [stdout]     |
[INFO] [stdout] 473 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(factor(s)).clone()]));
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:481:19
[INFO] [stdout]     |
[INFO] [stdout] 481 |     let mut ret = try!(term(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:485:9
[INFO] [stdout]     |
[INFO] [stdout] 485 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:486:76
[INFO] [stdout]     |
[INFO] [stdout] 486 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(term(s)).clone()]));
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:494:19
[INFO] [stdout]     |
[INFO] [stdout] 494 |     let mut ret = try!(expr(s));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |         try!(next_token(s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:498:76
[INFO] [stdout]     |
[INFO] [stdout] 498 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(expr(s)).clone()]));
[INFO] [stdout]     |                                                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:532:5
[INFO] [stdout]     |
[INFO] [stdout] 532 |     try!(next_token(&mut s));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:533:20
[INFO] [stdout]     |
[INFO] [stdout] 533 |     let mut root = try!(list(&mut s));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:32:50
[INFO] [stdout]    |
[INFO] [stdout] 32 |             TinyExprError::Parse(ref err) => err.description(),
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:32:50
[INFO] [stdout]    |
[INFO] [stdout] 32 |             TinyExprError::Parse(ref err) => err.description(),
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arity`
[INFO] [stdout]    --> src/lib.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let arity = arity!(e_type);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_arity`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:397:21
[INFO] [stdout]     |
[INFO] [stdout] 397 |                 for i in 0..arity {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:514:13
[INFO] [stdout]     |
[INFO] [stdout] 514 |         for i in 0..arity {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 |         let mut known = 1;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[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/lib.rs:435:37
[INFO] [stdout]     |
[INFO] [stdout] 435 |     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[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] 435 -     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[INFO] [stdout] 435 +     while s.s_type == TOK_INFIX && (std::ptr::fn_addr_eq(s.function, add as fn(f64, f64) -> f64) || s.function == sub) {
[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/lib.rs:435:58
[INFO] [stdout]     |
[INFO] [stdout] 435 |     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 435 -     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[INFO] [stdout] 435 +     while s.s_type == TOK_INFIX && (s.function == add || std::ptr::fn_addr_eq(s.function, sub as fn(f64, f64) -> f64)) {
[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/lib.rs:436:12
[INFO] [stdout]     |
[INFO] [stdout] 436 |         if s.function == sub { sign = -sign; }
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 436 -         if s.function == sub { sign = -sign; }
[INFO] [stdout] 436 +         if std::ptr::fn_addr_eq(s.function, sub as fn(f64, f64) -> f64) { sign = -sign; }
[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/lib.rs:457:36
[INFO] [stdout]     |
[INFO] [stdout] 457 |     while s.s_type == TOK_INFIX && s.function == pow {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 457 -     while s.s_type == TOK_INFIX && s.function == pow {
[INFO] [stdout] 457 +     while s.s_type == TOK_INFIX && std::ptr::fn_addr_eq(s.function, pow as fn(f64, f64) -> f64) {
[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/lib.rs:470:37
[INFO] [stdout]     |
[INFO] [stdout] 470 |     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 470 -     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[INFO] [stdout] 470 +     while s.s_type == TOK_INFIX && (std::ptr::fn_addr_eq(s.function, mul as fn(f64, f64) -> f64) || s.function == div || s.function == fmod) {
[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/lib.rs:470:58
[INFO] [stdout]     |
[INFO] [stdout] 470 |     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 470 -     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[INFO] [stdout] 470 +     while s.s_type == TOK_INFIX && (s.function == mul || std::ptr::fn_addr_eq(s.function, div as fn(f64, f64) -> f64) || s.function == fmod) {
[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/lib.rs:470:79
[INFO] [stdout]     |
[INFO] [stdout] 470 |     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 470 -     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[INFO] [stdout] 470 +     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || std::ptr::fn_addr_eq(s.function, fmod as fn(f64, f64) -> f64)) {
[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/lib.rs:483:37
[INFO] [stdout]     |
[INFO] [stdout] 483 |     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 483 -     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[INFO] [stdout] 483 +     while s.s_type == TOK_INFIX && (std::ptr::fn_addr_eq(s.function, add as fn(f64, f64) -> f64) || s.function == sub) {
[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/lib.rs:483:58
[INFO] [stdout]     |
[INFO] [stdout] 483 |     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 483 -     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[INFO] [stdout] 483 +     while s.s_type == TOK_INFIX && (s.function == add || std::ptr::fn_addr_eq(s.function, sub as fn(f64, f64) -> f64)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arity`
[INFO] [stdout]    --> src/lib.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let arity = arity!(e_type);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_arity`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:397:21
[INFO] [stdout]     |
[INFO] [stdout] 397 |                 for i in 0..arity {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:514:13
[INFO] [stdout]     |
[INFO] [stdout] 514 |         for i in 0..arity {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 |         let mut known = 1;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[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/lib.rs:435:37
[INFO] [stdout]     |
[INFO] [stdout] 435 |     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[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] 435 -     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[INFO] [stdout] 435 +     while s.s_type == TOK_INFIX && (std::ptr::fn_addr_eq(s.function, add as fn(f64, f64) -> f64) || s.function == sub) {
[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/lib.rs:435:58
[INFO] [stdout]     |
[INFO] [stdout] 435 |     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 435 -     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[INFO] [stdout] 435 +     while s.s_type == TOK_INFIX && (s.function == add || std::ptr::fn_addr_eq(s.function, sub as fn(f64, f64) -> f64)) {
[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/lib.rs:436:12
[INFO] [stdout]     |
[INFO] [stdout] 436 |         if s.function == sub { sign = -sign; }
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 436 -         if s.function == sub { sign = -sign; }
[INFO] [stdout] 436 +         if std::ptr::fn_addr_eq(s.function, sub as fn(f64, f64) -> f64) { sign = -sign; }
[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/lib.rs:457:36
[INFO] [stdout]     |
[INFO] [stdout] 457 |     while s.s_type == TOK_INFIX && s.function == pow {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 457 -     while s.s_type == TOK_INFIX && s.function == pow {
[INFO] [stdout] 457 +     while s.s_type == TOK_INFIX && std::ptr::fn_addr_eq(s.function, pow as fn(f64, f64) -> f64) {
[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/lib.rs:470:37
[INFO] [stdout]     |
[INFO] [stdout] 470 |     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 470 -     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[INFO] [stdout] 470 +     while s.s_type == TOK_INFIX && (std::ptr::fn_addr_eq(s.function, mul as fn(f64, f64) -> f64) || s.function == div || s.function == fmod) {
[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/lib.rs:470:58
[INFO] [stdout]     |
[INFO] [stdout] 470 |     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 470 -     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[INFO] [stdout] 470 +     while s.s_type == TOK_INFIX && (s.function == mul || std::ptr::fn_addr_eq(s.function, div as fn(f64, f64) -> f64) || s.function == fmod) {
[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/lib.rs:470:79
[INFO] [stdout]     |
[INFO] [stdout] 470 |     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 470 -     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || s.function == fmod) {
[INFO] [stdout] 470 +     while s.s_type == TOK_INFIX && (s.function == mul || s.function == div || std::ptr::fn_addr_eq(s.function, fmod as fn(f64, f64) -> f64)) {
[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/lib.rs:483:37
[INFO] [stdout]     |
[INFO] [stdout] 483 |     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 483 -     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[INFO] [stdout] 483 +     while s.s_type == TOK_INFIX && (std::ptr::fn_addr_eq(s.function, add as fn(f64, f64) -> f64) || s.function == sub) {
[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/lib.rs:483:58
[INFO] [stdout]     |
[INFO] [stdout] 483 |     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[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] help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
[INFO] [stdout]     |
[INFO] [stdout] 483 -     while s.s_type == TOK_INFIX && (s.function == add || s.function == sub) {
[INFO] [stdout] 483 +     while s.s_type == TOK_INFIX && (s.function == add || std::ptr::fn_addr_eq(s.function, sub as fn(f64, f64) -> f64)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "a61e470afdbedc7b46b15693f161623f75c26f34e4e590760488242db6a34f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a61e470afdbedc7b46b15693f161623f75c26f34e4e590760488242db6a34f77", kill_on_drop: false }`
[INFO] [stdout] a61e470afdbedc7b46b15693f161623f75c26f34e4e590760488242db6a34f77