[INFO] fetching crate scan_fmt 0.2.6...
[INFO] checking scan_fmt-0.2.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate scan_fmt 0.2.6 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate scan_fmt 0.2.6
[INFO] finished tweaking crates.io crate scan_fmt 0.2.6
[INFO] tweaked toml for crates.io crate scan_fmt 0.2.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scan_fmt 0.2.6 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd2779806867aee3ce3c32bdf92b902955c74e33e7051464fbdf0207644b6a21
[INFO] running `Command { std: "docker" "start" "-a" "cd2779806867aee3ce3c32bdf92b902955c74e33e7051464fbdf0207644b6a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd2779806867aee3ce3c32bdf92b902955c74e33e7051464fbdf0207644b6a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd2779806867aee3ce3c32bdf92b902955c74e33e7051464fbdf0207644b6a21", kill_on_drop: false }`
[INFO] [stdout] cd2779806867aee3ce3c32bdf92b902955c74e33e7051464fbdf0207644b6a21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8ca8ef42b57a0a843b967b9c2f3fd4e42899b2d25c2a624401a4e27490e301b
[INFO] running `Command { std: "docker" "start" "-a" "b8ca8ef42b57a0a843b967b9c2f3fd4e42899b2d25c2a624401a4e27490e301b", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking scan_fmt v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:140:23
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut err = "0".parse::<$($arg1)::*>(); // most types
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     if let Ok(a) = scan_fmt!("hi1 3", "{} {d}", std::string::String, u32) {
[INFO] [stdout]     |                    ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |         if err.is_err() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     if let Ok(a) = scan_fmt!("hi1 3", "{} {d}", std::string::String, u32) {
[INFO] [stdout]     |                    ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:18
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     if let Ok(a) = scan_fmt!("hi1 3", "{} {d}", std::string::String, u32) {
[INFO] [stdout]     |                    ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     if let Ok(a) = scan_fmt!("hi1 3", "{} {d}", std::string::String, u32) {
[INFO] [stdout]     |                    ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:144:19
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let err = err.unwrap();
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     if let Ok(a) = scan_fmt!("hi1 3", "{} {d}", std::string::String, u32) {
[INFO] [stdout]     |                    ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:147:27
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let ret = item.parse::<$($arg1)::*>();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     if let Ok(a) = scan_fmt!("hi1 3", "{} {d}", std::string::String, u32) {
[INFO] [stdout]     |                    ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:150:27
[INFO] [stdout]     |
[INFO] [stdout] 150 |                 } else if ret.is_err() {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     if let Ok(a) = scan_fmt!("hi1 3", "{} {d}", std::string::String, u32) {
[INFO] [stdout]     |                    ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 ret.unwrap_or(err)
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     if let Ok(a) = scan_fmt!("hi1 3", "{} {d}", std::string::String, u32) {
[INFO] [stdout]     |                    ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:140:23
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut err = "0".parse::<$($arg1)::*>(); // most types
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     if let Ok((a, b, c)) = scan_fmt!("hi1 0xf -3","{} {x} {d}",String,[hex u32],i8) {
[INFO] [stdout]     |                            -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |         if err.is_err() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     if let Ok((a, b, c)) = scan_fmt!("hi1 0xf -3","{} {x} {d}",String,[hex u32],i8) {
[INFO] [stdout]     |                            -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:18
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     if let Ok((a, b, c)) = scan_fmt!("hi1 0xf -3","{} {x} {d}",String,[hex u32],i8) {
[INFO] [stdout]     |                            -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     if let Ok((a, b, c)) = scan_fmt!("hi1 0xf -3","{} {x} {d}",String,[hex u32],i8) {
[INFO] [stdout]     |                            -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:144:19
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let err = err.unwrap();
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     if let Ok((a, b, c)) = scan_fmt!("hi1 0xf -3","{} {x} {d}",String,[hex u32],i8) {
[INFO] [stdout]     |                            -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:147:27
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let ret = item.parse::<$($arg1)::*>();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     if let Ok((a, b, c)) = scan_fmt!("hi1 0xf -3","{} {x} {d}",String,[hex u32],i8) {
[INFO] [stdout]     |                            -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:150:27
[INFO] [stdout]     |
[INFO] [stdout] 150 |                 } else if ret.is_err() {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     if let Ok((a, b, c)) = scan_fmt!("hi1 0xf -3","{} {x} {d}",String,[hex u32],i8) {
[INFO] [stdout]     |                            -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 ret.unwrap_or(err)
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     if let Ok((a, b, c)) = scan_fmt!("hi1 0xf -3","{} {x} {d}",String,[hex u32],i8) {
[INFO] [stdout]     |                            -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:140:23
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut err = "0".parse::<$($arg1)::*>(); // most types
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     let a = scan_fmt!("hi1 f", "{} {d}", String, i32);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |         if err.is_err() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     let a = scan_fmt!("hi1 f", "{} {d}", String, i32);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:18
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     let a = scan_fmt!("hi1 f", "{} {d}", String, i32);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     let a = scan_fmt!("hi1 f", "{} {d}", String, i32);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:144:19
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let err = err.unwrap();
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     let a = scan_fmt!("hi1 f", "{} {d}", String, i32);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:147:27
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let ret = item.parse::<$($arg1)::*>();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     let a = scan_fmt!("hi1 f", "{} {d}", String, i32);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:150:27
[INFO] [stdout]     |
[INFO] [stdout] 150 |                 } else if ret.is_err() {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     let a = scan_fmt!("hi1 f", "{} {d}", String, i32);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 ret.unwrap_or(err)
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     let a = scan_fmt!("hi1 f", "{} {d}", String, i32);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:118:27
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Some(item) => item.parse::<$($arg1)::*>().ok(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 269 |         scan_fmt_some!("DEV 0xab 0x1234", "{} {x} {x}", std::string::String, [hex u32], [hex u64]);
[INFO] [stdout]     |         ------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt_some` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:118:27
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Some(item) => item.parse::<$($arg1)::*>().ok(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 291 |     let (a, b, c, d) = scan_fmt_some!("a_aa bb_b c", "{} {s} {}", String, String, String, String);
[INFO] [stdout]     |                        -------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt_some` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:118:27
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Some(item) => item.parse::<$($arg1)::*>().ok(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 291 |     let (a, b, c, d) = scan_fmt_some!("a_aa bb_b c", "{} {s} {}", String, String, String, String);
[INFO] [stdout]     |                        -------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt_some` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:118:27
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Some(item) => item.parse::<$($arg1)::*>().ok(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 291 |     let (a, b, c, d) = scan_fmt_some!("a_aa bb_b c", "{} {s} {}", String, String, String, String);
[INFO] [stdout]     |                        -------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt_some` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:118:27
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Some(item) => item.parse::<$($arg1)::*>().ok(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 291 |     let (a, b, c, d) = scan_fmt_some!("a_aa bb_b c", "{} {s} {}", String, String, String, String);
[INFO] [stdout]     |                        -------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt_some` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:118:27
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Some(item) => item.parse::<$($arg1)::*>().ok(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 |     let (a, b) = scan_fmt_some!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String);
[INFO] [stdout]     |                  -------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt_some` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:118:27
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Some(item) => item.parse::<$($arg1)::*>().ok(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 |     let (a, b) = scan_fmt_some!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String);
[INFO] [stdout]     |                  -------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt_some` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:140:23
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut err = "0".parse::<$($arg1)::*>(); // most types
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |         if err.is_err() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:18
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:144:19
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let err = err.unwrap();
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:147:27
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let ret = item.parse::<$($arg1)::*>();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:150:27
[INFO] [stdout]     |
[INFO] [stdout] 150 |                 } else if ret.is_err() {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 ret.unwrap_or(err)
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:140:23
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut err = "0".parse::<$($arg1)::*>(); // most types
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |         if err.is_err() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:18
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:144:19
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let err = err.unwrap();
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:147:27
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let ret = item.parse::<$($arg1)::*>();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:150:27
[INFO] [stdout]     |
[INFO] [stdout] 150 |                 } else if ret.is_err() {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 ret.unwrap_or(err)
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     let a = scan_fmt!("1 2 3, 4 5, 6 7", "{[^,]},{*[^,]},{[^,]}", String, String).unwrap();
[INFO] [stdout]     |             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:140:23
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut err = "0".parse::<$($arg1)::*>(); // most types
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     let a = scan_fmt!("74in", "{d}{/in/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |         if err.is_err() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     let a = scan_fmt!("74in", "{d}{/in/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:18
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     let a = scan_fmt!("74in", "{d}{/in/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     let a = scan_fmt!("74in", "{d}{/in/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:144:19
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let err = err.unwrap();
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     let a = scan_fmt!("74in", "{d}{/in/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:147:27
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let ret = item.parse::<$($arg1)::*>();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     let a = scan_fmt!("74in", "{d}{/in/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:150:27
[INFO] [stdout]     |
[INFO] [stdout] 150 |                 } else if ret.is_err() {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     let a = scan_fmt!("74in", "{d}{/in/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 ret.unwrap_or(err)
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     let a = scan_fmt!("74in", "{d}{/in/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:140:23
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut err = "0".parse::<$($arg1)::*>(); // most types
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |     let a = scan_fmt!("74in", "{d}{/cm/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |         if err.is_err() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |     let a = scan_fmt!("74in", "{d}{/cm/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:18
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |     let a = scan_fmt!("74in", "{d}{/cm/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |            err = "0.0.0.0".parse::<$($arg1)::*>(); // IpAddr
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |     let a = scan_fmt!("74in", "{d}{/cm/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:144:19
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let err = err.unwrap();
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |     let a = scan_fmt!("74in", "{d}{/cm/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:147:27
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let ret = item.parse::<$($arg1)::*>();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |     let a = scan_fmt!("74in", "{d}{/cm/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:150:27
[INFO] [stdout]     |
[INFO] [stdout] 150 |                 } else if ret.is_err() {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |     let a = scan_fmt!("74in", "{d}{/cm/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 ret.unwrap_or(err)
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |     let a = scan_fmt!("74in", "{d}{/cm/}", u8, String);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scan_fmt` (lib test) due to 63 previous errors
[INFO] running `Command { std: "docker" "inspect" "b8ca8ef42b57a0a843b967b9c2f3fd4e42899b2d25c2a624401a4e27490e301b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8ca8ef42b57a0a843b967b9c2f3fd4e42899b2d25c2a624401a4e27490e301b", kill_on_drop: false }`
[INFO] [stdout] b8ca8ef42b57a0a843b967b9c2f3fd4e42899b2d25c2a624401a4e27490e301b