[INFO] fetching crate web-assembler 0.1.2...
[INFO] checking web-assembler-0.1.2 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate web-assembler 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate web-assembler 0.1.2
[INFO] finished tweaking crates.io crate web-assembler 0.1.2
[INFO] tweaked toml for crates.io crate web-assembler 0.1.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate web-assembler 0.1.2 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate web-assembler 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 268da418f9262fb6024a27780147b5df2ee74d7c6593c5780aab9e98dd5ad079
[INFO] running `Command { std: "docker" "start" "-a" "268da418f9262fb6024a27780147b5df2ee74d7c6593c5780aab9e98dd5ad079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "268da418f9262fb6024a27780147b5df2ee74d7c6593c5780aab9e98dd5ad079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "268da418f9262fb6024a27780147b5df2ee74d7c6593c5780aab9e98dd5ad079", kill_on_drop: false }`
[INFO] [stdout] 268da418f9262fb6024a27780147b5df2ee74d7c6593c5780aab9e98dd5ad079
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eec53a3dec4f610b9d087f41dd25106937ad821b30df34449f063f0f3ebd145
[INFO] running `Command { std: "docker" "start" "-a" "2eec53a3dec4f610b9d087f41dd25106937ad821b30df34449f063f0f3ebd145", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking web-assembler v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         do_section!(0x01, self.types);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         do_section!(0x02, self.imports);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         do_section!(0x03, self.functions);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         do_section!(0x04, self.tables);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         do_section!(0x05, self.memories);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         do_section!(0x06, self.globals);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         do_section!(0x07, self.exports);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:81:26
[INFO] [stdout]    |
[INFO] [stdout] 81 |             for index in self.start {
[INFO] [stdout]    |                          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 81 -             for index in self.start {
[INFO] [stdout] 81 +             while let Some(index) = self.start {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 81 -             for index in self.start {
[INFO] [stdout] 81 +             if let Some(index) = self.start {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         do_section!(0x09, self.elements);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         do_section!(0x0a, self.codes);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         do_section!(0x0b, self.data);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/types.rs:103:20
[INFO] [stdout]     |
[INFO] [stdout] 103 |         for ret in ret {
[INFO] [stdout]     |                    ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 103 -         for ret in ret {
[INFO] [stdout] 103 +         while let Some(ret) = ret {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 103 -         for ret in ret {
[INFO] [stdout] 103 +         if let Some(ret) = ret {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/ops.rs:320:47
[INFO] [stdout]     |
[INFO] [stdout] 320 |                     size += write_uint32(buf, ::std::mem::transmute::<f32, u32>(*f));
[INFO] [stdout]     |                                               ---------------------------------^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: replace this with: `f32::to_bits`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/ops.rs:326:47
[INFO] [stdout]     |
[INFO] [stdout] 326 |                     size += write_uint64(buf, ::std::mem::transmute::<f64, u64>(*f));
[INFO] [stdout]     |                                               ---------------------------------^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: replace this with: `f64::to_bits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/simple_add.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         do_section!(0x01, self.types);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         do_section!(0x02, self.imports);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         do_section!(0x03, self.functions);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         do_section!(0x04, self.tables);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         do_section!(0x05, self.memories);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         do_section!(0x06, self.globals);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         do_section!(0x07, self.exports);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:81:26
[INFO] [stdout]    |
[INFO] [stdout] 81 |             for index in self.start {
[INFO] [stdout]    |                          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 81 -             for index in self.start {
[INFO] [stdout] 81 +             while let Some(index) = self.start {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 81 -             for index in self.start {
[INFO] [stdout] 81 +             if let Some(index) = self.start {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         do_section!(0x09, self.elements);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         do_section!(0x0a, self.codes);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/module.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         do_section!(0x0b, self.data);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 while let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 56 -                 for xs in field {
[INFO] [stdout] 56 +                 if let Some() =  in field {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/types.rs:103:20
[INFO] [stdout]     |
[INFO] [stdout] 103 |         for ret in ret {
[INFO] [stdout]     |                    ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 103 -         for ret in ret {
[INFO] [stdout] 103 +         while let Some(ret) = ret {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 103 -         for ret in ret {
[INFO] [stdout] 103 +         if let Some(ret) = ret {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/ops.rs:320:47
[INFO] [stdout]     |
[INFO] [stdout] 320 |                     size += write_uint32(buf, ::std::mem::transmute::<f32, u32>(*f));
[INFO] [stdout]     |                                               ---------------------------------^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: replace this with: `f32::to_bits`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/ops.rs:326:47
[INFO] [stdout]     |
[INFO] [stdout] 326 |                     size += write_uint64(buf, ::std::mem::transmute::<f64, u64>(*f));
[INFO] [stdout]     |                                               ---------------------------------^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: replace this with: `f64::to_bits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "2eec53a3dec4f610b9d087f41dd25106937ad821b30df34449f063f0f3ebd145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eec53a3dec4f610b9d087f41dd25106937ad821b30df34449f063f0f3ebd145", kill_on_drop: false }`
[INFO] [stdout] 2eec53a3dec4f610b9d087f41dd25106937ad821b30df34449f063f0f3ebd145