[INFO] fetching crate tinyexpr 0.1.1...
[INFO] testing tinyexpr-0.1.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate tinyexpr 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate tinyexpr 0.1.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99fe161d3afd6f106b87733bd12fe36b7b79d514d108838e55d43c645a40cd19
[INFO] running `Command { std: "docker" "start" "-a" "99fe161d3afd6f106b87733bd12fe36b7b79d514d108838e55d43c645a40cd19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99fe161d3afd6f106b87733bd12fe36b7b79d514d108838e55d43c645a40cd19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99fe161d3afd6f106b87733bd12fe36b7b79d514d108838e55d43c645a40cd19", kill_on_drop: false }`
[INFO] [stdout] 99fe161d3afd6f106b87733bd12fe36b7b79d514d108838e55d43c645a40cd19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6849a1d233f39679941d02bbf0337e87ec9cbf80509de31c1995e0119c39a0d8
[INFO] running `Command { std: "docker" "start" "-a" "6849a1d233f39679941d02bbf0337e87ec9cbf80509de31c1995e0119c39a0d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling 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: `#[warn(unused_attributes)]` on by default
[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] 
[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] 62 | |     }
[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] 62 | |     }
[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 associated function `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: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "6849a1d233f39679941d02bbf0337e87ec9cbf80509de31c1995e0119c39a0d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6849a1d233f39679941d02bbf0337e87ec9cbf80509de31c1995e0119c39a0d8", kill_on_drop: false }`
[INFO] [stdout] 6849a1d233f39679941d02bbf0337e87ec9cbf80509de31c1995e0119c39a0d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7074d01300d85b14a64b417f0d2416bf5103b57a3f7a433d62e5b1d2dca3e89
[INFO] running `Command { std: "docker" "start" "-a" "c7074d01300d85b14a64b417f0d2416bf5103b57a3f7a433d62e5b1d2dca3e89", kill_on_drop: false }`
[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: `#[warn(unused_attributes)]` on by default
[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] 
[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] 62 | |     }
[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] 62 | |     }
[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] [stderr]    Compiling tinyexpr v0.1.1 (/opt/rustwide/workdir)
[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 associated function `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: 41 warnings emitted
[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: `#[warn(unused_attributes)]` on by default
[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] 
[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] 62 | |     }
[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] 62 | |     }
[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 associated function `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: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "c7074d01300d85b14a64b417f0d2416bf5103b57a3f7a433d62e5b1d2dca3e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7074d01300d85b14a64b417f0d2416bf5103b57a3f7a433d62e5b1d2dca3e89", kill_on_drop: false }`
[INFO] [stdout] c7074d01300d85b14a64b417f0d2416bf5103b57a3f7a433d62e5b1d2dca3e89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4bf69c12acb4b89aa8c9b0a2d91525c59e90be6c147f08b25f06b27e8b941f1e
[INFO] running `Command { std: "docker" "start" "-a" "4bf69c12acb4b89aa8c9b0a2d91525c59e90be6c147f08b25f06b27e8b941f1e", kill_on_drop: false }`
[INFO] [stderr] warning: unused attribute `doc`
[INFO] [stderr]   --> src/lib.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[doc(hidden)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] note: the built-in attribute `doc` will be ignored, since it's applied to the macro invocation `bitflags`
[INFO] [stderr]   --> src/lib.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | bitflags! {
[INFO] [stderr]    | ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | / bitflags! {
[INFO] [stderr] 31 | |     #[doc(hidden)]
[INFO] [stderr] 32 | |     pub flags ExprType: u64 {
[INFO] [stderr] 33 | |         const TE_VARIABLE  = 0,
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |     }
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | / bitflags! {
[INFO] [stderr] 31 | |     #[doc(hidden)]
[INFO] [stderr] 32 | |     pub flags ExprType: u64 {
[INFO] [stderr] 33 | |         const TE_VARIABLE  = 0,
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |     }
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `is_pure`
[INFO] [stderr]   --> src/lib.rs:69:14
[INFO] [stderr]    |
[INFO] [stderr] 69 | macro_rules! is_pure {
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `is_function`
[INFO] [stderr]   --> src/lib.rs:73:14
[INFO] [stderr]    |
[INFO] [stderr] 73 | macro_rules! is_function {
[INFO] [stderr]    |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `is_closure`
[INFO] [stderr]   --> src/lib.rs:77:14
[INFO] [stderr]    |
[INFO] [stderr] 77 | macro_rules! is_closure {
[INFO] [stderr]    |              ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:281:24
[INFO] [stderr]     |
[INFO] [stderr] 281 |             s.value  = try!(f64::from_str(&num_str));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:357:13
[INFO] [stderr]     |
[INFO] [stderr] 357 |             try!(next_token(s));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:362:13
[INFO] [stderr]     |
[INFO] [stderr] 362 |             try!(next_token(s));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:371:13
[INFO] [stderr]     |
[INFO] [stderr] 371 |             try!(next_token(s));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:378:13
[INFO] [stderr]     |
[INFO] [stderr] 378 |             try!(next_token(s));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:379:33
[INFO] [stderr]     |
[INFO] [stderr] 379 |             ret.parameters.push(try!(power(s)));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:391:13
[INFO] [stderr]     |
[INFO] [stderr] 391 |             try!(next_token(s));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:398:21
[INFO] [stderr]     |
[INFO] [stderr] 398 |                     try!(next_token(s));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:399:41
[INFO] [stderr]     |
[INFO] [stderr] 399 |                     ret.parameters.push(try!(expr(s)));
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:408:21
[INFO] [stderr]     |
[INFO] [stderr] 408 |                     try!(next_token(s));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:413:13
[INFO] [stderr]     |
[INFO] [stderr] 413 |             try!(next_token(s));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:414:19
[INFO] [stderr]     |
[INFO] [stderr] 414 |             ret = try!(list(s));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:418:17
[INFO] [stderr]     |
[INFO] [stderr] 418 |                 try!(next_token(s));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:437:9
[INFO] [stderr]     |
[INFO] [stderr] 437 |         try!(next_token(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:443:15
[INFO] [stderr]     |
[INFO] [stderr] 443 |         ret = try!(base(s));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:445:63
[INFO] [stderr]     |
[INFO] [stderr] 445 |         ret = new_expr(TE_FUNCTION1 | TE_FLAG_PURE, Some(vec![try!(base(s)).clone()]));
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:454:19
[INFO] [stderr]     |
[INFO] [stderr] 454 |     let mut ret = try!(power(s));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:459:9
[INFO] [stderr]     |
[INFO] [stderr] 459 |         try!(next_token(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:460:76
[INFO] [stderr]     |
[INFO] [stderr] 460 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(power(s)).clone()]));
[INFO] [stderr]     |                                                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:468:19
[INFO] [stderr]     |
[INFO] [stderr] 468 |     let mut ret = try!(factor(s));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:472:9
[INFO] [stderr]     |
[INFO] [stderr] 472 |         try!(next_token(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:473:76
[INFO] [stderr]     |
[INFO] [stderr] 473 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(factor(s)).clone()]));
[INFO] [stderr]     |                                                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:481:19
[INFO] [stderr]     |
[INFO] [stderr] 481 |     let mut ret = try!(term(s));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:485:9
[INFO] [stderr]     |
[INFO] [stderr] 485 |         try!(next_token(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:486:76
[INFO] [stderr]     |
[INFO] [stderr] 486 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(term(s)).clone()]));
[INFO] [stderr]     |                                                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:494:19
[INFO] [stderr]     |
[INFO] [stderr] 494 |     let mut ret = try!(expr(s));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:497:9
[INFO] [stderr]     |
[INFO] [stderr] 497 |         try!(next_token(s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:498:76
[INFO] [stderr]     |
[INFO] [stderr] 498 |         ret = new_expr(TE_FUNCTION2 | TE_FLAG_PURE, Some(vec![ret.clone(), try!(expr(s)).clone()]));
[INFO] [stderr]     |                                                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:532:5
[INFO] [stderr]     |
[INFO] [stderr] 532 |     try!(next_token(&mut s));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:533:20
[INFO] [stderr]     |
[INFO] [stderr] 533 |     let mut root = try!(list(&mut s));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:32:50
[INFO] [stderr]    |
[INFO] [stderr] 32 |             TinyExprError::Parse(ref err) => err.description(),
[INFO] [stderr]    |                                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arity`
[INFO] [stderr]    --> src/lib.rs:226:9
[INFO] [stderr]     |
[INFO] [stderr] 226 |     let arity = arity!(e_type);
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_arity`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:397:21
[INFO] [stderr]     |
[INFO] [stderr] 397 |                 for i in 0..arity {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:514:13
[INFO] [stderr]     |
[INFO] [stderr] 514 |         for i in 0..arity {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:511:13
[INFO] [stderr]     |
[INFO] [stderr] 511 |         let mut known = 1;
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tinyexpr` (lib) generated 41 warnings
[INFO] [stderr] warning: `tinyexpr` (lib test) generated 41 warnings (41 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tinyexpr-be50e578cba3e35f)
[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] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-ca34ec4348f3bf82)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test check_basics ... ok
[INFO] [stdout] test check_constants ... ok
[INFO] [stdout] test check_logarithms ... ok
[INFO] [stdout] test check_hyberbolic_trigs ... ok
[INFO] [stdout] test check_trigs ... ok
[INFO] [stdout] test parse_error - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tinyexpr
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - interp (line 547) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4bf69c12acb4b89aa8c9b0a2d91525c59e90be6c147f08b25f06b27e8b941f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf69c12acb4b89aa8c9b0a2d91525c59e90be6c147f08b25f06b27e8b941f1e", kill_on_drop: false }`
[INFO] [stdout] 4bf69c12acb4b89aa8c9b0a2d91525c59e90be6c147f08b25f06b27e8b941f1e