[INFO] fetching crate casing 0.1.0...
[INFO] testing casing-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate casing 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate casing 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate casing 0.1.0
[INFO] finished tweaking crates.io crate casing 0.1.0
[INFO] tweaked toml for crates.io crate casing 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a58e6c7eb977789421b0000ae29f43f6c10c8e350814f6cd7aaf2e41e22483d7
[INFO] running `Command { std: "docker" "start" "-a" "a58e6c7eb977789421b0000ae29f43f6c10c8e350814f6cd7aaf2e41e22483d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a58e6c7eb977789421b0000ae29f43f6c10c8e350814f6cd7aaf2e41e22483d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a58e6c7eb977789421b0000ae29f43f6c10c8e350814f6cd7aaf2e41e22483d7", kill_on_drop: false }`
[INFO] [stdout] a58e6c7eb977789421b0000ae29f43f6c10c8e350814f6cd7aaf2e41e22483d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09be83a04b0f229cf4ad4c6a3693da90be641671fdf0ec918f634d7ed33f312c
[INFO] running `Command { std: "docker" "start" "-a" "09be83a04b0f229cf4ad4c6a3693da90be641671fdf0ec918f634d7ed33f312c", kill_on_drop: false }`
[INFO] [stderr]    Compiling casing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                           ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:81:74
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                             ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:86:61
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:91:19
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/ascii.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/ascii.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "09be83a04b0f229cf4ad4c6a3693da90be641671fdf0ec918f634d7ed33f312c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09be83a04b0f229cf4ad4c6a3693da90be641671fdf0ec918f634d7ed33f312c", kill_on_drop: false }`
[INFO] [stdout] 09be83a04b0f229cf4ad4c6a3693da90be641671fdf0ec918f634d7ed33f312c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 264aad51010136958e9c4b7d2d4e4948fb8f18a91c8e24739797feea390a66b7
[INFO] running `Command { std: "docker" "start" "-a" "264aad51010136958e9c4b7d2d4e4948fb8f18a91c8e24739797feea390a66b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling casing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                           ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:81:74
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                             ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:86:61
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:91:19
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/ascii.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/ascii.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                           ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:81:74
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                             ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:86:61
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:91:19
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/ascii.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/ascii.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(test))]
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `casing` due to 2 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "264aad51010136958e9c4b7d2d4e4948fb8f18a91c8e24739797feea390a66b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264aad51010136958e9c4b7d2d4e4948fb8f18a91c8e24739797feea390a66b7", kill_on_drop: false }`
[INFO] [stdout] 264aad51010136958e9c4b7d2d4e4948fb8f18a91c8e24739797feea390a66b7