[INFO] cloning repository https://github.com/andrew-hardin/virtual-space-cadet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrew-hardin/virtual-space-cadet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-hardin%2Fvirtual-space-cadet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-hardin%2Fvirtual-space-cadet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b15950fdc58b84657e2eb49fa8ea52f3d740627f
[INFO] testing andrew-hardin/virtual-space-cadet against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-hardin%2Fvirtual-space-cadet" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/andrew-hardin/virtual-space-cadet
[INFO] finished tweaking git repo https://github.com/andrew-hardin/virtual-space-cadet
[INFO] tweaked toml for git repo https://github.com/andrew-hardin/virtual-space-cadet written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/andrew-hardin/virtual-space-cadet on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/andrew-hardin/virtual-space-cadet 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec5b798dd382a330bd23995227be0d048e85176d073c9db02c6a4aa746f4e229
[INFO] running `Command { std: "docker" "start" "-a" "ec5b798dd382a330bd23995227be0d048e85176d073c9db02c6a4aa746f4e229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec5b798dd382a330bd23995227be0d048e85176d073c9db02c6a4aa746f4e229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec5b798dd382a330bd23995227be0d048e85176d073c9db02c6a4aa746f4e229", kill_on_drop: false }`
[INFO] [stdout] ec5b798dd382a330bd23995227be0d048e85176d073c9db02c6a4aa746f4e229
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10a0b1721b2f2eea02c1d2da5c7c58af848226f630201d7ca5605e6f57d20361
[INFO] running `Command { std: "docker" "start" "-a" "10a0b1721b2f2eea02c1d2da5c7c58af848226f630201d7ca5605e6f57d20361", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cc v1.0.30
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling ioctl-sys v0.5.2
[INFO] [stderr]    Compiling enum_derive v0.1.7
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling json v0.11.13
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling evdev-sys v0.2.0
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling uinput-sys v0.1.7
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling uinput v0.1.3
[INFO] [stderr]    Compiling evdev-rs v0.2.0
[INFO] [stderr]    Compiling libspacecadet v0.1.0 (/opt/rustwide/workdir/libspacecadet)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/keys.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub output_device: &'a mut OutputKeyboard,
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub output_device: &'a mut dyn OutputKeyboard,
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:425:21
[INFO] [stdout]     |
[INFO] [stdout] 425 |     pub inside: Box<KeyCode>,
[INFO] [stdout]     |                     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 425 |     pub inside: Box<dyn KeyCode>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:468:22
[INFO] [stdout]     |
[INFO] [stdout] 468 |     when_tapped: Box<KeyCode>,
[INFO] [stdout]     |                      ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 468 |     when_tapped: Box<dyn KeyCode>,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> libspacecadet/src/layer.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub codes: Vec<Vec<Box<KeyCode>>>,
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub codes: Vec<Vec<Box<dyn KeyCode>>>,
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/keys.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl FromStr for Box<KeyCode> {
[INFO] [stdout]    |                      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl FromStr for Box<dyn KeyCode> {
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/parser.rs:276:63
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub fn convert_tokens_to_key(v: &ParsedKeyTree) -> Result<Box<KeyCode>, String> {
[INFO] [stdout]     |                                                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub fn convert_tokens_to_key(v: &ParsedKeyTree) -> Result<Box<dyn KeyCode>, String> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/parser.rs:281:55
[INFO] [stdout]     |
[INFO] [stdout] 281 |     type Converter = fn(&ParsedKeyTree) -> Result<Box<KeyCode>, String>;
[INFO] [stdout]     |                                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 281 |     type Converter = fn(&ParsedKeyTree) -> Result<Box<dyn KeyCode>, String>;
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:478:33
[INFO] [stdout]     |
[INFO] [stdout] 478 |     pub fn new(when_tapped: Box<KeyCode>, modifier: NormalKey) -> SpaceCadet {
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 478 |     pub fn new(when_tapped: Box<dyn KeyCode>, modifier: NormalKey) -> SpaceCadet {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keyboard_driver.rs:170:39
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         let code: Box<KeyCode> = str::parse(col.as_str().unwrap()).unwrap();
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         let code: Box<dyn KeyCode> = str::parse(col.as_str().unwrap()).unwrap();
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/layer.rs:14:36
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut codes: Vec<Vec<Box<KeyCode>>> = Vec::with_capacity(dim.0);
[INFO] [stdout]    |                                    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut codes: Vec<Vec<Box<dyn KeyCode>>> = Vec::with_capacity(dim.0);
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/layer.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut row: Vec<Box<KeyCode>> = Vec::with_capacity(dim.1);
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut row: Vec<Box<dyn KeyCode>> = Vec::with_capacity(dim.1);
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> libspacecadet/src/virtual_keyboard_matrix.rs:204:32
[INFO] [stdout]     |
[INFO] [stdout] 204 |                         panic!(format!("Couldn't convert {} into a code.", key_code));
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 204 -                         panic!(format!("Couldn't convert {} into a code.", key_code));
[INFO] [stdout] 204 +                         panic!("Couldn't convert {} into a code.", key_code);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> libspacecadet/src/parser.rs:41:22
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn create(v: &str) -> Result<Vec<RawToken>, String> {
[INFO] [stdout]    |                      ^^^^                ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn create(v: &str) -> Result<Vec<RawToken<'_>>, String> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> libspacecadet/src/parser.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn parse(v: &str) -> Vec<RawToken> {
[INFO] [stdout]    |                 ^^^^         ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn parse(v: &str) -> Vec<RawToken<'_>> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libspacecadet/src/parser.rs:235:22
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn create(v: &str) -> Result<ParsedKeyTree, String> {
[INFO] [stdout]     |                      ^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn create(v: &str) -> Result<ParsedKeyTree<'_>, String> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> libspacecadet/src/parser.rs:296:25
[INFO] [stdout]     |
[INFO] [stdout] 296 |     for i in converters.into_iter() {
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 296 -     for i in converters.into_iter() {
[INFO] [stdout] 296 +     for i in converters.iter() {
[INFO] [stdout]     |
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 296 -     for i in converters.into_iter() {
[INFO] [stdout] 296 +     for i in converters {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling spacecadet v0.1.0 (/opt/rustwide/workdir/spacecadet)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.64s
[INFO] running `Command { std: "docker" "inspect" "10a0b1721b2f2eea02c1d2da5c7c58af848226f630201d7ca5605e6f57d20361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a0b1721b2f2eea02c1d2da5c7c58af848226f630201d7ca5605e6f57d20361", kill_on_drop: false }`
[INFO] [stdout] 10a0b1721b2f2eea02c1d2da5c7c58af848226f630201d7ca5605e6f57d20361
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 161e12764b4b767b787b8126e7fe2e40d27fc63a976f68f15fda7110d71fd9a5
[INFO] running `Command { std: "docker" "start" "-a" "161e12764b4b767b787b8126e7fe2e40d27fc63a976f68f15fda7110d71fd9a5", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/keys.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub output_device: &'a mut OutputKeyboard,
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub output_device: &'a mut dyn OutputKeyboard,
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:425:21
[INFO] [stdout]     |
[INFO] [stdout] 425 |     pub inside: Box<KeyCode>,
[INFO] [stdout]     |                     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 425 |     pub inside: Box<dyn KeyCode>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:468:22
[INFO] [stdout]     |
[INFO] [stdout] 468 |     when_tapped: Box<KeyCode>,
[INFO] [stdout]     |                      ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 468 |     when_tapped: Box<dyn KeyCode>,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> libspacecadet/src/layer.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub codes: Vec<Vec<Box<KeyCode>>>,
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub codes: Vec<Vec<Box<dyn KeyCode>>>,
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/keys.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl FromStr for Box<KeyCode> {
[INFO] [stdout]    |                      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl FromStr for Box<dyn KeyCode> {
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/parser.rs:276:63
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub fn convert_tokens_to_key(v: &ParsedKeyTree) -> Result<Box<KeyCode>, String> {
[INFO] [stdout]     |                                                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub fn convert_tokens_to_key(v: &ParsedKeyTree) -> Result<Box<dyn KeyCode>, String> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/parser.rs:281:55
[INFO] [stdout]     |
[INFO] [stdout] 281 |     type Converter = fn(&ParsedKeyTree) -> Result<Box<KeyCode>, String>;
[INFO] [stdout]     |                                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 281 |     type Converter = fn(&ParsedKeyTree) -> Result<Box<dyn KeyCode>, String>;
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:478:33
[INFO] [stdout]     |
[INFO] [stdout] 478 |     pub fn new(when_tapped: Box<KeyCode>, modifier: NormalKey) -> SpaceCadet {
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 478 |     pub fn new(when_tapped: Box<dyn KeyCode>, modifier: NormalKey) -> SpaceCadet {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keyboard_driver.rs:170:39
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         let code: Box<KeyCode> = str::parse(col.as_str().unwrap()).unwrap();
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         let code: Box<dyn KeyCode> = str::parse(col.as_str().unwrap()).unwrap();
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/layer.rs:14:36
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut codes: Vec<Vec<Box<KeyCode>>> = Vec::with_capacity(dim.0);
[INFO] [stdout]    |                                    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut codes: Vec<Vec<Box<dyn KeyCode>>> = Vec::with_capacity(dim.0);
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling libspacecadet v0.1.0 (/opt/rustwide/workdir/libspacecadet)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/layer.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut row: Vec<Box<KeyCode>> = Vec::with_capacity(dim.1);
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut row: Vec<Box<dyn KeyCode>> = Vec::with_capacity(dim.1);
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling spacecadet v0.1.0 (/opt/rustwide/workdir/spacecadet)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> libspacecadet/src/virtual_keyboard_matrix.rs:204:32
[INFO] [stdout]     |
[INFO] [stdout] 204 |                         panic!(format!("Couldn't convert {} into a code.", key_code));
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 204 -                         panic!(format!("Couldn't convert {} into a code.", key_code));
[INFO] [stdout] 204 +                         panic!("Couldn't convert {} into a code.", key_code);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> libspacecadet/src/parser.rs:41:22
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn create(v: &str) -> Result<Vec<RawToken>, String> {
[INFO] [stdout]    |                      ^^^^                ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn create(v: &str) -> Result<Vec<RawToken<'_>>, String> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> libspacecadet/src/parser.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn parse(v: &str) -> Vec<RawToken> {
[INFO] [stdout]    |                 ^^^^         ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn parse(v: &str) -> Vec<RawToken<'_>> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libspacecadet/src/parser.rs:235:22
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn create(v: &str) -> Result<ParsedKeyTree, String> {
[INFO] [stdout]     |                      ^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn create(v: &str) -> Result<ParsedKeyTree<'_>, String> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> libspacecadet/src/parser.rs:296:25
[INFO] [stdout]     |
[INFO] [stdout] 296 |     for i in converters.into_iter() {
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 296 -     for i in converters.into_iter() {
[INFO] [stdout] 296 +     for i in converters.iter() {
[INFO] [stdout]     |
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 296 -     for i in converters.into_iter() {
[INFO] [stdout] 296 +     for i in converters {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/keys.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub output_device: &'a mut OutputKeyboard,
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub output_device: &'a mut dyn OutputKeyboard,
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:425:21
[INFO] [stdout]     |
[INFO] [stdout] 425 |     pub inside: Box<KeyCode>,
[INFO] [stdout]     |                     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 425 |     pub inside: Box<dyn KeyCode>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:468:22
[INFO] [stdout]     |
[INFO] [stdout] 468 |     when_tapped: Box<KeyCode>,
[INFO] [stdout]     |                      ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 468 |     when_tapped: Box<dyn KeyCode>,
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> libspacecadet/src/layer.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub codes: Vec<Vec<Box<KeyCode>>>,
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub codes: Vec<Vec<Box<dyn KeyCode>>>,
[INFO] [stdout]   |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/keys.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl FromStr for Box<KeyCode> {
[INFO] [stdout]    |                      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl FromStr for Box<dyn KeyCode> {
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:557:33
[INFO] [stdout]     |
[INFO] [stdout] 557 |     fn get_test_driver(key: Box<KeyCode>) -> TestDriver { get_test_driver_multilayer(vec![key]) }
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 557 |     fn get_test_driver(key: Box<dyn KeyCode>) -> TestDriver { get_test_driver_multilayer(vec![key]) }
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:560:49
[INFO] [stdout]     |
[INFO] [stdout] 560 |     fn get_test_driver_multilayer(keys: Vec<Box<KeyCode>>) -> TestDriver {
[INFO] [stdout]     |                                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 560 |     fn get_test_driver_multilayer(keys: Vec<Box<dyn KeyCode>>) -> TestDriver {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:600:32
[INFO] [stdout]     |
[INFO] [stdout] 600 |     fn check_noop_key(key: Box<KeyCode>) {
[INFO] [stdout]     |                                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 600 |     fn check_noop_key(key: Box<dyn KeyCode>) {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/parser.rs:276:63
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub fn convert_tokens_to_key(v: &ParsedKeyTree) -> Result<Box<KeyCode>, String> {
[INFO] [stdout]     |                                                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub fn convert_tokens_to_key(v: &ParsedKeyTree) -> Result<Box<dyn KeyCode>, String> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/parser.rs:281:55
[INFO] [stdout]     |
[INFO] [stdout] 281 |     type Converter = fn(&ParsedKeyTree) -> Result<Box<KeyCode>, String>;
[INFO] [stdout]     |                                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 281 |     type Converter = fn(&ParsedKeyTree) -> Result<Box<dyn KeyCode>, String>;
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keys.rs:478:33
[INFO] [stdout]     |
[INFO] [stdout] 478 |     pub fn new(when_tapped: Box<KeyCode>, modifier: NormalKey) -> SpaceCadet {
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 478 |     pub fn new(when_tapped: Box<dyn KeyCode>, modifier: NormalKey) -> SpaceCadet {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> libspacecadet/src/keyboard_driver.rs:170:39
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         let code: Box<KeyCode> = str::parse(col.as_str().unwrap()).unwrap();
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         let code: Box<dyn KeyCode> = str::parse(col.as_str().unwrap()).unwrap();
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/layer.rs:14:36
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut codes: Vec<Vec<Box<KeyCode>>> = Vec::with_capacity(dim.0);
[INFO] [stdout]    |                                    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut codes: Vec<Vec<Box<dyn KeyCode>>> = Vec::with_capacity(dim.0);
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> libspacecadet/src/layer.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut row: Vec<Box<KeyCode>> = Vec::with_capacity(dim.1);
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut row: Vec<Box<dyn KeyCode>> = Vec::with_capacity(dim.1);
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> libspacecadet/src/virtual_keyboard_matrix.rs:204:32
[INFO] [stdout]     |
[INFO] [stdout] 204 |                         panic!(format!("Couldn't convert {} into a code.", key_code));
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 204 -                         panic!(format!("Couldn't convert {} into a code.", key_code));
[INFO] [stdout] 204 +                         panic!("Couldn't convert {} into a code.", key_code);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> libspacecadet/src/parser.rs:41:22
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn create(v: &str) -> Result<Vec<RawToken>, String> {
[INFO] [stdout]    |                      ^^^^                ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn create(v: &str) -> Result<Vec<RawToken<'_>>, String> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> libspacecadet/src/parser.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn parse(v: &str) -> Vec<RawToken> {
[INFO] [stdout]    |                 ^^^^         ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn parse(v: &str) -> Vec<RawToken<'_>> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> libspacecadet/src/parser.rs:235:22
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn create(v: &str) -> Result<ParsedKeyTree, String> {
[INFO] [stdout]     |                      ^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 235 |     pub fn create(v: &str) -> Result<ParsedKeyTree<'_>, String> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> libspacecadet/src/parser.rs:296:25
[INFO] [stdout]     |
[INFO] [stdout] 296 |     for i in converters.into_iter() {
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 296 -     for i in converters.into_iter() {
[INFO] [stdout] 296 +     for i in converters.iter() {
[INFO] [stdout]     |
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 296 -     for i in converters.into_iter() {
[INFO] [stdout] 296 +     for i in converters {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "161e12764b4b767b787b8126e7fe2e40d27fc63a976f68f15fda7110d71fd9a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161e12764b4b767b787b8126e7fe2e40d27fc63a976f68f15fda7110d71fd9a5", kill_on_drop: false }`
[INFO] [stdout] 161e12764b4b767b787b8126e7fe2e40d27fc63a976f68f15fda7110d71fd9a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 421a1eb344c5487f850c71fb7df4e05f7d3f48af7871aefbdec4f634dbed15ef
[INFO] running `Command { std: "docker" "start" "-a" "421a1eb344c5487f850c71fb7df4e05f7d3f48af7871aefbdec4f634dbed15ef", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> libspacecadet/src/keys.rs:16:32
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub output_device: &'a mut OutputKeyboard,
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub output_device: &'a mut dyn OutputKeyboard,
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> libspacecadet/src/keys.rs:425:21
[INFO] [stderr]     |
[INFO] [stderr] 425 |     pub inside: Box<KeyCode>,
[INFO] [stderr]     |                     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 425 |     pub inside: Box<dyn KeyCode>,
[INFO] [stderr]     |                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> libspacecadet/src/keys.rs:468:22
[INFO] [stderr]     |
[INFO] [stderr] 468 |     when_tapped: Box<KeyCode>,
[INFO] [stderr]     |                      ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 468 |     when_tapped: Box<dyn KeyCode>,
[INFO] [stderr]     |                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> libspacecadet/src/layer.rs:8:28
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub codes: Vec<Vec<Box<KeyCode>>>,
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub codes: Vec<Vec<Box<dyn KeyCode>>>,
[INFO] [stderr]   |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> libspacecadet/src/keys.rs:64:22
[INFO] [stderr]    |
[INFO] [stderr] 64 | impl FromStr for Box<KeyCode> {
[INFO] [stderr]    |                      ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 64 | impl FromStr for Box<dyn KeyCode> {
[INFO] [stderr]    |                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> libspacecadet/src/parser.rs:276:63
[INFO] [stderr]     |
[INFO] [stderr] 276 | pub fn convert_tokens_to_key(v: &ParsedKeyTree) -> Result<Box<KeyCode>, String> {
[INFO] [stderr]     |                                                               ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 276 | pub fn convert_tokens_to_key(v: &ParsedKeyTree) -> Result<Box<dyn KeyCode>, String> {
[INFO] [stderr]     |                                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> libspacecadet/src/parser.rs:281:55
[INFO] [stderr]     |
[INFO] [stderr] 281 |     type Converter = fn(&ParsedKeyTree) -> Result<Box<KeyCode>, String>;
[INFO] [stderr]     |                                                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 281 |     type Converter = fn(&ParsedKeyTree) -> Result<Box<dyn KeyCode>, String>;
[INFO] [stderr]     |                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> libspacecadet/src/keys.rs:478:33
[INFO] [stderr]     |
[INFO] [stderr] 478 |     pub fn new(when_tapped: Box<KeyCode>, modifier: NormalKey) -> SpaceCadet {
[INFO] [stderr]     |                                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 478 |     pub fn new(when_tapped: Box<dyn KeyCode>, modifier: NormalKey) -> SpaceCadet {
[INFO] [stderr]     |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> libspacecadet/src/keyboard_driver.rs:170:39
[INFO] [stderr]     |
[INFO] [stderr] 170 |                         let code: Box<KeyCode> = str::parse(col.as_str().unwrap()).unwrap();
[INFO] [stderr]     |                                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 170 |                         let code: Box<dyn KeyCode> = str::parse(col.as_str().unwrap()).unwrap();
[INFO] [stderr]     |                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> libspacecadet/src/layer.rs:14:36
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut codes: Vec<Vec<Box<KeyCode>>> = Vec::with_capacity(dim.0);
[INFO] [stderr]    |                                    ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut codes: Vec<Vec<Box<dyn KeyCode>>> = Vec::with_capacity(dim.0);
[INFO] [stderr]    |                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> libspacecadet/src/layer.rs:16:34
[INFO] [stderr]    |
[INFO] [stderr] 16 |             let mut row: Vec<Box<KeyCode>> = Vec::with_capacity(dim.1);
[INFO] [stderr]    |                                  ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 16 |             let mut row: Vec<Box<dyn KeyCode>> = Vec::with_capacity(dim.1);
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> libspacecadet/src/virtual_keyboard_matrix.rs:204:32
[INFO] [stderr]     |
[INFO] [stderr] 204 |                         panic!(format!("Couldn't convert {} into a code.", key_code));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 204 -                         panic!(format!("Couldn't convert {} into a code.", key_code));
[INFO] [stderr] 204 +                         panic!("Couldn't convert {} into a code.", key_code);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> libspacecadet/src/parser.rs:41:22
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn create(v: &str) -> Result<Vec<RawToken>, String> {
[INFO] [stderr]    |                      ^^^^                ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn create(v: &str) -> Result<Vec<RawToken<'_>>, String> {
[INFO] [stderr]    |                                                  ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> libspacecadet/src/parser.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn parse(v: &str) -> Vec<RawToken> {
[INFO] [stderr]    |                 ^^^^         ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn parse(v: &str) -> Vec<RawToken<'_>> {
[INFO] [stderr]    |                                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> libspacecadet/src/parser.rs:235:22
[INFO] [stderr]     |
[INFO] [stderr] 235 |     pub fn create(v: &str) -> Result<ParsedKeyTree, String> {
[INFO] [stderr]     |                      ^^^^            ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 235 |     pub fn create(v: &str) -> Result<ParsedKeyTree<'_>, String> {
[INFO] [stderr]     |                                                   ++++
[INFO] [stderr] 
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stderr]    --> libspacecadet/src/parser.rs:296:25
[INFO] [stderr]     |
[INFO] [stderr] 296 |     for i in converters.into_iter() {
[INFO] [stderr]     |                         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this changes meaning in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stderr]     = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]     |
[INFO] [stderr] 296 -     for i in converters.into_iter() {
[INFO] [stderr] 296 +     for i in converters.iter() {
[INFO] [stderr]     |
[INFO] [stderr] help: or remove `.into_iter()` to iterate by value
[INFO] [stderr]     |
[INFO] [stderr] 296 -     for i in converters.into_iter() {
[INFO] [stderr] 296 +     for i in converters {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> libspacecadet/src/keys.rs:557:33
[INFO] [stderr]     |
[INFO] [stderr] 557 |     fn get_test_driver(key: Box<KeyCode>) -> TestDriver { get_test_driver_multilayer(vec![key]) }
[INFO] [stderr]     |                                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 557 |     fn get_test_driver(key: Box<dyn KeyCode>) -> TestDriver { get_test_driver_multilayer(vec![key]) }
[INFO] [stderr]     |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> libspacecadet/src/keys.rs:560:49
[INFO] [stderr]     |
[INFO] [stderr] 560 |     fn get_test_driver_multilayer(keys: Vec<Box<KeyCode>>) -> TestDriver {
[INFO] [stderr]     |                                                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 560 |     fn get_test_driver_multilayer(keys: Vec<Box<dyn KeyCode>>) -> TestDriver {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> libspacecadet/src/keys.rs:600:32
[INFO] [stderr]     |
[INFO] [stderr] 600 |     fn check_noop_key(key: Box<KeyCode>) {
[INFO] [stderr]     |                                ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 600 |     fn check_noop_key(key: Box<dyn KeyCode>) {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `libspacecadet` (lib) generated 16 warnings (run `cargo fix --lib -p libspacecadet` to apply 16 suggestions)
[INFO] [stderr] warning: `libspacecadet` (lib test) generated 19 warnings (16 duplicates) (run `cargo fix --lib -p libspacecadet --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libspacecadet-32ef779b99674231)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test keys::tests::activate_layer_key ... ok
[INFO] [stdout] test keys::tests::hold_enable_layer_press_key ... ok
[INFO] [stdout] test keys::tests::macro_key ... ok
[INFO] [stdout] test keys::tests::modifier_wrapped_key ... ok
[INFO] [stdout] test keys::tests::momentarily_enable_layer_key ... ok
[INFO] [stdout] test keys::tests::normal_key ... ok
[INFO] [stdout] test keys::tests::one_shot_layer ... ok
[INFO] [stdout] test keys::tests::opaque_key ... ok
[INFO] [stdout] test keys::tests::space_cadet_hold ... ok
[INFO] [stdout] test keys::tests::space_cadet_taprelease ... ok
[INFO] [stdout] test keys::tests::toggle_layer_key ... ok
[INFO] [stdout] test keys::tests::transparent_key ... ok
[INFO] [stdout] test layer::tests::key_code_matrix_dims ... ok
[INFO] [stdout] test layer::tests::layer_collection_event_count_callback ... ok
[INFO] [stdout] test layer::tests::layer_collection_get_set ... ok
[INFO] [stdout] test output_keyboard::tests::evdev_to_uinput_check_one ... ok
[INFO] [stdout] test output_keyboard::tests::evdev_to_uniput_unsupported_value ... ok
[INFO] [stdout] test output_keyboard::tests::event_buffer_defaults ... ok
[INFO] [stdout] test output_keyboard::tests::event_buffer_spacecadet ... ok
[INFO] [stdout] test parser::tests::parsed_key_tree_successes ... ok
[INFO] [stdout] test virtual_keyboard_matrix::tests::block_key_states ... ok
[INFO] [stdout] test parser::tests::raw_token_failures ... ok
[INFO] [stdout] test virtual_keyboard_matrix::tests::state_matrix_check_held_keys ... ok
[INFO] [stdout] test virtual_keyboard_matrix::tests::key_state_change_conversion ... ok
[INFO] [stdout] test virtual_keyboard_matrix::tests::virtual_keyboard_matrix_update ... ok
[INFO] [stdout] test virtual_keyboard_matrix::tests::virtual_keyboard_matrix_held_keys ... ok
[INFO] [stdout] test virtual_keyboard_matrix::tests::state_matrix_set ... ok
[INFO] [stdout] test parser::tests::parsed_key_tree_complex ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/matrix_collector.rs (/opt/rustwide/target/debug/deps/matrix_collector-881f7483758ed53a)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/spacecadet-ccb7245793f52f89)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libspacecadet
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "421a1eb344c5487f850c71fb7df4e05f7d3f48af7871aefbdec4f634dbed15ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "421a1eb344c5487f850c71fb7df4e05f7d3f48af7871aefbdec4f634dbed15ef", kill_on_drop: false }`
[INFO] [stdout] 421a1eb344c5487f850c71fb7df4e05f7d3f48af7871aefbdec4f634dbed15ef
