[INFO] fetching crate index-ext 1.0.0...
[INFO] checking index-ext-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate index-ext 1.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate index-ext 1.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate index-ext 1.0.0
[INFO] tweaked toml for crates.io crate index-ext 1.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate index-ext 1.0.0 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] crate crates.io crate index-ext 1.0.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6aed20c41daff0aa4612386bd706a79b6ce932862284d428f1c3c91d64cb72a5
[INFO] running `Command { std: "docker" "start" "-a" "6aed20c41daff0aa4612386bd706a79b6ce932862284d428f1c3c91d64cb72a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6aed20c41daff0aa4612386bd706a79b6ce932862284d428f1c3c91d64cb72a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aed20c41daff0aa4612386bd706a79b6ce932862284d428f1c3c91d64cb72a5", kill_on_drop: false }`
[INFO] [stdout] 6aed20c41daff0aa4612386bd706a79b6ce932862284d428f1c3c91d64cb72a5
[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 -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] 4837d879cc2bdca50cabf35d6afdda932f73f4fdaa944a201d54640663bd6daa
[INFO] running `Command { std: "docker" "start" "-a" "4837d879cc2bdca50cabf35d6afdda932f73f4fdaa944a201d54640663bd6daa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking generativity v1.0.0
[INFO] [stderr]     Checking index-ext v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[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 `slice_index` (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<usize, Infallible>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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<usize, Infallible>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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<usize, Infallible>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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<usize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 211 | / integer_mem!(
[INFO] [stdout] 212 | |     /// A u8 that is also in the value range of a usize.
[INFO] [stdout] 213 | |     pub struct Umem8(u8)
[INFO] [stdout] 214 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_mem` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 | / integer_mem!(
[INFO] [stdout] 222 | |     /// A u16 that is also in the value range of a usize.
[INFO] [stdout] 223 | |     pub struct Umem16(u16)
[INFO] [stdout] 224 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_mem` (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<isize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 261 | / integer_diff!(
[INFO] [stdout] 262 | |     /// An i8 that is also in the value range of an isize.
[INFO] [stdout] 263 | |     pub struct Idiff8(i8)
[INFO] [stdout] 264 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_diff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<isize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 | / integer_diff!(
[INFO] [stdout] 267 | |     /// A u8 that is also in the value range of an isize.
[INFO] [stdout] 268 | |     pub struct Udiff8(u8)
[INFO] [stdout] 269 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_diff` (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<isize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 271 | / integer_diff!(
[INFO] [stdout] 272 | |     /// An i16 that is also in the value range of an isize.
[INFO] [stdout] 273 | |     pub struct Idiff16(i16)
[INFO] [stdout] 274 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_diff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `index-ext` (lib) due to 11 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[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 `slice_index` (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<usize, Infallible>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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<usize, Infallible>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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<usize, Infallible>
[INFO] [stdout]    --> src/int.rs:619:16
[INFO] [stdout]     |
[INFO] [stdout] 619 |             Ok(self.try_into()?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 677 | slice_index!(u8, i8, u16, i16, u32, i32, u64, i64, u128, i128, usize, isize);
[INFO] [stdout]     | ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `slice_index` (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<usize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 211 | / integer_mem!(
[INFO] [stdout] 212 | |     /// A u8 that is also in the value range of a usize.
[INFO] [stdout] 213 | |     pub struct Umem8(u8)
[INFO] [stdout] 214 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_mem` (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<usize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 | / integer_mem!(
[INFO] [stdout] 222 | |     /// A u16 that is also in the value range of a usize.
[INFO] [stdout] 223 | |     pub struct Umem16(u16)
[INFO] [stdout] 224 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_mem` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<isize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 261 | / integer_diff!(
[INFO] [stdout] 262 | |     /// An i8 that is also in the value range of an isize.
[INFO] [stdout] 263 | |     pub struct Idiff8(i8)
[INFO] [stdout] 264 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_diff` (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<isize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 | / integer_diff!(
[INFO] [stdout] 267 | |     /// A u8 that is also in the value range of an isize.
[INFO] [stdout] 268 | |     pub struct Udiff8(u8)
[INFO] [stdout] 269 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_diff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<isize, Infallible>
[INFO] [stdout]    --> src/mem.rs:92:20
[INFO] [stdout]     |
[INFO] [stdout]  92 |                   if <$sizet as core::convert::TryFrom<_>>::try_from(val).is_ok() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 271 | / integer_diff!(
[INFO] [stdout] 272 | |     /// An i16 that is also in the value range of an isize.
[INFO] [stdout] 273 | |     pub struct Idiff16(i16)
[INFO] [stdout] 274 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `lossless_integer` which comes from the expansion of the macro `integer_diff` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `index-ext` (lib test) due to 11 previous errors
[INFO] running `Command { std: "docker" "inspect" "4837d879cc2bdca50cabf35d6afdda932f73f4fdaa944a201d54640663bd6daa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4837d879cc2bdca50cabf35d6afdda932f73f4fdaa944a201d54640663bd6daa", kill_on_drop: false }`
[INFO] [stdout] 4837d879cc2bdca50cabf35d6afdda932f73f4fdaa944a201d54640663bd6daa
