[INFO] cloning repository https://github.com/fredrikpe/less2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fredrikpe/less2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffredrikpe%2Fless2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffredrikpe%2Fless2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c801b0be3f5aaaeddb49b54b4854aa83505500db
[INFO] checking fredrikpe/less2 against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffredrikpe%2Fless2" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fredrikpe/less2 on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fredrikpe/less2
[INFO] finished tweaking git repo https://github.com/fredrikpe/less2
[INFO] tweaked toml for git repo https://github.com/fredrikpe/less2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fredrikpe/less2 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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded encoding_rs v0.8.12
[INFO] [stderr]   Downloaded grep-printer v0.1.1
[INFO] [stderr]   Downloaded grep-regex v0.1.1
[INFO] [stderr]   Downloaded encoding_rs_io v0.1.3
[INFO] [stderr]   Downloaded grep-matcher v0.1.1
[INFO] [stderr]   Downloaded grep-cli v0.1.1
[INFO] [stderr]   Downloaded grep-searcher v0.1.1
[INFO] [stderr]   Downloaded grep v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60b2a35f1e5a3073f6a684ca9a9ba93f862a6dc630f4275b6e81cb354c2969fd
[INFO] running `Command { std: "docker" "start" "-a" "60b2a35f1e5a3073f6a684ca9a9ba93f862a6dc630f4275b6e81cb354c2969fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60b2a35f1e5a3073f6a684ca9a9ba93f862a6dc630f4275b6e81cb354c2969fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b2a35f1e5a3073f6a684ca9a9ba93f862a6dc630f4275b6e81cb354c2969fd", kill_on_drop: false }`
[INFO] [stdout] 60b2a35f1e5a3073f6a684ca9a9ba93f862a6dc630f4275b6e81cb354c2969fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f9a982495df303b728df77dc04e4a7df5a008e969a78079d621ad47d1420160
[INFO] running `Command { std: "docker" "start" "-a" "4f9a982495df303b728df77dc04e4a7df5a008e969a78079d621ad47d1420160", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.12
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.3
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]    Compiling syn v0.15.21
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking grep-matcher v0.1.1
[INFO] [stderr]     Checking encoding_rs_io v0.1.3
[INFO] [stderr]     Checking grep-searcher v0.1.1
[INFO] [stderr]     Checking globset v0.4.2
[INFO] [stderr]     Checking grep-regex v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking grep-cli v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking grep-printer v0.1.1
[INFO] [stderr]     Checking grep v0.2.3
[INFO] [stderr]     Checking less2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 144 |                         err!(Some(1))
[INFO] [stdout]     |                         ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 143 |                     if next!() & !CONT_MASK != TAG_CONT_U8 {
[INFO] [stdout]     |                        ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 148 |                     match (first, next!()) {
[INFO] [stdout]     |                                   ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 153 |                         _ => err!(Some(1)),
[INFO] [stdout]     |                              ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 156 |                         err!(Some(2))
[INFO] [stdout]     |                         ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 155 |                     if next!() & !CONT_MASK != TAG_CONT_U8 {
[INFO] [stdout]     |                        ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 160 |                     match (first, next!()) {
[INFO] [stdout]     |                                   ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 164 |                         _ => err!(Some(1)),
[INFO] [stdout]     |                              ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 167 |                         err!(Some(2))
[INFO] [stdout]     |                         ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 166 |                     if next!() & !CONT_MASK != TAG_CONT_U8 {
[INFO] [stdout]     |                        ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 170 |                         err!(Some(3))
[INFO] [stdout]     |                         ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 169 |                     if next!() & !CONT_MASK != TAG_CONT_U8 {
[INFO] [stdout]     |                        ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 173 |                 _ => err!(Some(1)),
[INFO] [stdout]     |                      ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 144 |                         err!(Some(1))
[INFO] [stdout]     |                         ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 143 |                     if next!() & !CONT_MASK != TAG_CONT_U8 {
[INFO] [stdout]     |                        ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 148 |                     match (first, next!()) {
[INFO] [stdout]     |                                   ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 153 |                         _ => err!(Some(1)),
[INFO] [stdout]     |                              ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 156 |                         err!(Some(2))
[INFO] [stdout]     |                         ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 155 |                     if next!() & !CONT_MASK != TAG_CONT_U8 {
[INFO] [stdout]     |                        ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 160 |                     match (first, next!()) {
[INFO] [stdout]     |                                   ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 164 |                         _ => err!(Some(1)),
[INFO] [stdout]     |                              ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 167 |                         err!(Some(2))
[INFO] [stdout]     |                         ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 166 |                     if next!() & !CONT_MASK != TAG_CONT_U8 {
[INFO] [stdout]     |                        ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 170 |                         err!(Some(3))
[INFO] [stdout]     |                         ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 169 |                     if next!() & !CONT_MASK != TAG_CONT_U8 {
[INFO] [stdout]     |                        ------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `err`
[INFO] [stdout]     = note: this warning originates in the macro `err` which comes from the expansion of the macro `next` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utf8_validation.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 });
[INFO] [stdout]     |                   ^
[INFO] [stdout] ...
[INFO] [stdout] 173 |                 _ => err!(Some(1)),
[INFO] [stdout]     |                      ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/printer.rs:86:41
[INFO] [stdout]    |
[INFO] [stdout] 86 |                         while let Some((index, grapheme)) = iter.next() {
[INFO] [stdout]    |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]    --> src/reader.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub struct StdinCursor {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] 204 |     cursor: Cursor<Vec<u8>>,
[INFO] [stdout] 205 |     pub file: File,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StdinCursor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/printer.rs:86:41
[INFO] [stdout]    |
[INFO] [stdout] 86 |                         while let Some((index, grapheme)) = iter.next() {
[INFO] [stdout]    |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]    --> src/reader.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub struct StdinCursor {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] 204 |     cursor: Cursor<Vec<u8>>,
[INFO] [stdout] 205 |     pub file: File,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StdinCursor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.39s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: less2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "4f9a982495df303b728df77dc04e4a7df5a008e969a78079d621ad47d1420160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f9a982495df303b728df77dc04e4a7df5a008e969a78079d621ad47d1420160", kill_on_drop: false }`
[INFO] [stdout] 4f9a982495df303b728df77dc04e4a7df5a008e969a78079d621ad47d1420160
