[INFO] fetching crate panoramix 0.0.3...
[INFO] checking panoramix-0.0.3 against 1.55.0 for beta-1.56-3
[INFO] extracting crate panoramix 0.0.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate panoramix 0.0.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate panoramix 0.0.3
[INFO] finished tweaking crates.io crate panoramix 0.0.3
[INFO] tweaked toml for crates.io crate panoramix 0.0.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate panoramix 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa365c1ca9e35b5ff09049b67a9515875417636ea0748a3788625e852ae49706
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aa365c1ca9e35b5ff09049b67a9515875417636ea0748a3788625e852ae49706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa365c1ca9e35b5ff09049b67a9515875417636ea0748a3788625e852ae49706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa365c1ca9e35b5ff09049b67a9515875417636ea0748a3788625e852ae49706", kill_on_drop: false }`
[INFO] [stdout] aa365c1ca9e35b5ff09049b67a9515875417636ea0748a3788625e852ae49706
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c054e63c6877480f755e3ca7d17d90708fc95a7f69127dd495076f5eda8141d9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c054e63c6877480f755e3ca7d17d90708fc95a7f69127dd495076f5eda8141d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling anyhow v1.0.39
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling gio v0.9.1
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling gtk v0.9.2
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking kurbo v0.7.1
[INFO] [stderr]     Checking type-map v0.4.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking unic-ucd-bidi v0.9.0
[INFO] [stderr]     Checking unic-langid v0.9.0
[INFO] [stderr]     Checking keyboard-types v0.5.0
[INFO] [stderr]     Checking simple_logger v1.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking fluent-langneg v0.13.0
[INFO] [stderr]     Checking intl_pluralrules v7.0.1
[INFO] [stderr]     Checking intl-memoizer v0.5.1
[INFO] [stderr]     Checking unic-bidi v0.9.0
[INFO] [stderr]     Checking piet v0.3.1
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling druid-derive v0.4.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling test-env-log v0.2.6
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]     Checking tracing-unwrap v0.9.2
[INFO] [stderr]    Compiling panoramix-derive v0.0.2
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking rental v0.5.5
[INFO] [stderr]     Checking fluent-bundle v0.12.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking tracing-subscriber v0.2.17
[INFO] [stderr]     Checking insta v1.7.0
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling gio-sys v0.10.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]     Checking glib v0.10.3
[INFO] [stderr]     Checking piet-cairo v0.3.0
[INFO] [stderr]     Checking piet-common v0.3.2
[INFO] [stderr]     Checking druid-shell v0.7.0
[INFO] [stderr]     Checking druid v0.7.0
[INFO] [stderr]     Checking panoramix v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: custom inner attributes are unstable
[INFO] [stdout]  --> src/elements/element_tuple.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![rustfmt::skip]
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(soft_unstable)]` on by default
[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 #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: custom inner attributes are unstable
[INFO] [stdout]  --> src/widgets/widget_tuple.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![rustfmt::skip]
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[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 #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `$crate::Tuple`
[INFO] [stdout]    --> src/elements/flex_element.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |             $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 209 |         let row = Row!();
[INFO] [stdout]     |                   ------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout]     = note: this error originates in the macro `Row` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `$crate::Tuple`
[INFO] [stdout]    --> src/elements/flex_element.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |             $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 |         let column = Column!();
[INFO] [stdout]     |                      --------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout]     = note: this error originates in the macro `Column` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `$crate::Tuple`
[INFO] [stdout]    --> src/elements/flex_element.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |             $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |         let row = Row!(Label::new("Hello"));
[INFO] [stdout]     |                   ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout]     = note: this error originates in the macro `Row` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `$crate::Tuple`
[INFO] [stdout]    --> src/elements/flex_element.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |             $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 226 |         let column = Column!(Label::new("Greetings"));
[INFO] [stdout]     |                      -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout]     = note: this error originates in the macro `Column` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `$crate::Tuple`
[INFO] [stdout]    --> src/elements/flex_element.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |               $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 241 |           let row = Row!(
[INFO] [stdout]     |  ___________________-
[INFO] [stdout] 242 | |             Label::new("Hello"),
[INFO] [stdout] 243 | |             Label::new("Hello2"),
[INFO] [stdout] 244 | |             Label::new("Hello3"),
[INFO] [stdout] 245 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout]     = note: this error originates in the macro `Row` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths
[INFO] [stdout]    --> src/elements/flex_element.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |             $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 209 |         let row = Row!();
[INFO] [stdout]     |                   ------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(macro_expanded_macro_exports_accessed_by_absolute_paths)]` on by default
[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 #52234 <https://github.com/rust-lang/rust/issues/52234>
[INFO] [stdout] note: the macro is defined here
[INFO] [stdout]    --> src/elements/element_tuple.rs:215:1
[INFO] [stdout]     |
[INFO] [stdout] 215 | / macro_rules! Tuple {
[INFO] [stdout] 216 | |
[INFO] [stdout] 217 | |     ( $(,)? ) => {
[INFO] [stdout] 218 | |         $crate::elements::EmptyElement::new()
[INFO] [stdout] ...   |
[INFO] [stdout] 293 | |
[INFO] [stdout] 294 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     = note: this warning originates in the macro `Row` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths
[INFO] [stdout]    --> src/elements/flex_element.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |             $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |         let row = Row!(Label::new("Hello"));
[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 #52234 <https://github.com/rust-lang/rust/issues/52234>
[INFO] [stdout] note: the macro is defined here
[INFO] [stdout]    --> src/elements/element_tuple.rs:215:1
[INFO] [stdout]     |
[INFO] [stdout] 215 | / macro_rules! Tuple {
[INFO] [stdout] 216 | |
[INFO] [stdout] 217 | |     ( $(,)? ) => {
[INFO] [stdout] 218 | |         $crate::elements::EmptyElement::new()
[INFO] [stdout] ...   |
[INFO] [stdout] 293 | |
[INFO] [stdout] 294 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     = note: this warning originates in the macro `Row` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths
[INFO] [stdout]    --> src/elements/flex_element.rs:177:13
[INFO] [stdout]     |
[INFO] [stdout] 177 |               $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 241 |           let row = Row!(
[INFO] [stdout]     |  ___________________-
[INFO] [stdout] 242 | |             Label::new("Hello"),
[INFO] [stdout] 243 | |             Label::new("Hello2"),
[INFO] [stdout] 244 | |             Label::new("Hello3"),
[INFO] [stdout] 245 | |         );
[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 #52234 <https://github.com/rust-lang/rust/issues/52234>
[INFO] [stdout] note: the macro is defined here
[INFO] [stdout]    --> src/elements/element_tuple.rs:215:1
[INFO] [stdout]     |
[INFO] [stdout] 215 | / macro_rules! Tuple {
[INFO] [stdout] 216 | |
[INFO] [stdout] 217 | |     ( $(,)? ) => {
[INFO] [stdout] 218 | |         $crate::elements::EmptyElement::new()
[INFO] [stdout] ...   |
[INFO] [stdout] 293 | |
[INFO] [stdout] 294 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     = note: this warning originates in the macro `Row` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths
[INFO] [stdout]    --> src/elements/flex_element.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |             $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 |         let column = Column!();
[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 #52234 <https://github.com/rust-lang/rust/issues/52234>
[INFO] [stdout] note: the macro is defined here
[INFO] [stdout]    --> src/elements/element_tuple.rs:215:1
[INFO] [stdout]     |
[INFO] [stdout] 215 | / macro_rules! Tuple {
[INFO] [stdout] 216 | |
[INFO] [stdout] 217 | |     ( $(,)? ) => {
[INFO] [stdout] 218 | |         $crate::elements::EmptyElement::new()
[INFO] [stdout] ...   |
[INFO] [stdout] 293 | |
[INFO] [stdout] 294 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     = note: this warning originates in the macro `Column` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths
[INFO] [stdout]    --> src/elements/flex_element.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |             $crate::Tuple!($($arg,)*)
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 226 |         let column = Column!(Label::new("Greetings"));
[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 #52234 <https://github.com/rust-lang/rust/issues/52234>
[INFO] [stdout] note: the macro is defined here
[INFO] [stdout]    --> src/elements/element_tuple.rs:215:1
[INFO] [stdout]     |
[INFO] [stdout] 215 | / macro_rules! Tuple {
[INFO] [stdout] 216 | |
[INFO] [stdout] 217 | |     ( $(,)? ) => {
[INFO] [stdout] 218 | |         $crate::elements::EmptyElement::new()
[INFO] [stdout] ...   |
[INFO] [stdout] 293 | |
[INFO] [stdout] 294 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     = note: this warning originates in the macro `Column` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: custom inner attributes are unstable
[INFO] [stdout]  --> src/elements/element_tuple.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![rustfmt::skip]
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(soft_unstable)]` on by default
[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 #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::elements::Label`
[INFO] [stdout]    --> src/elements/flex_element.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |     use crate::elements::Label;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: custom inner attributes are unstable
[INFO] [stdout]  --> src/widgets/widget_tuple.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![rustfmt::skip]
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[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 #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `panoramix` due to 6 previous errors; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c054e63c6877480f755e3ca7d17d90708fc95a7f69127dd495076f5eda8141d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c054e63c6877480f755e3ca7d17d90708fc95a7f69127dd495076f5eda8141d9", kill_on_drop: false }`
[INFO] [stdout] c054e63c6877480f755e3ca7d17d90708fc95a7f69127dd495076f5eda8141d9
