[INFO] cloning repository https://github.com/dvc94ch/linux-toolkit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dvc94ch/linux-toolkit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvc94ch%2Flinux-toolkit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvc94ch%2Flinux-toolkit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5585106b226f9a0fd1263b7b88e020df32df5d93
[INFO] checking dvc94ch/linux-toolkit against 49a6044d37d694890450f52ceaceb66277a36b1e for pr-161154
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvc94ch%2Flinux-toolkit" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dvc94ch/linux-toolkit
[INFO] finished tweaking git repo https://github.com/dvc94ch/linux-toolkit
[INFO] tweaked toml for git repo https://github.com/dvc94ch/linux-toolkit written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dvc94ch/linux-toolkit on toolchain 49a6044d37d694890450f52ceaceb66277a36b1e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49a6044d37d694890450f52ceaceb66277a36b1e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dvc94ch/linux-toolkit 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" "+49a6044d37d694890450f52ceaceb66277a36b1e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git submodule `https://anongit.freedesktop.org/git/wayland/wayland-protocols.git`
[INFO] [stderr] warning: spurious network error (3 tries remaining): failed to connect to anongit.freedesktop.org: Network is unreachable; class=Os (2)
[INFO] [stderr] warning: spurious network error (2 tries remaining): SSL error: syscall failure: Connection reset by peer; class=Os (2)
[INFO] [stderr]     Updating git submodule `https://github.com/swaywm/wlr-protocols.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libloading v0.5.0
[INFO] [stderr]   Downloaded quote v0.6.10
[INFO] [stderr]   Downloaded cc v1.0.28
[INFO] [stderr]   Downloaded xkbcommon v0.4.0
[INFO] [stderr]   Downloaded downcast-rs v1.0.3
[INFO] [stderr]   Downloaded rand_chacha v0.1.0
[INFO] [stderr]   Downloaded rand_xorshift v0.1.0
[INFO] [stderr]   Downloaded rand_core v0.3.0
[INFO] [stderr]   Downloaded byteorder v1.2.7
[INFO] [stderr]   Downloaded proc-macro2 v0.4.24
[INFO] [stderr]   Downloaded nix v0.12.0
[INFO] [stderr]   Downloaded rand v0.6.1
[INFO] [stderr]   Downloaded libc v0.2.45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a4fb9726e7139368fb175adc848d1c22cdee35ed8e4bb8e63b889b579751f39e
[INFO] running `Command { std: "docker" "start" "a4fb9726e7139368fb175adc848d1c22cdee35ed8e4bb8e63b889b579751f39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4fb9726e7139368fb175adc848d1c22cdee35ed8e4bb8e63b889b579751f39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a4fb9726e7139368fb175adc848d1c22cdee35ed8e4bb8e63b889b579751f39e" "/opt/rustwide/cargo-home/bin/cargo" "+49a6044d37d694890450f52ceaceb66277a36b1e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4fb9726e7139368fb175adc848d1c22cdee35ed8e4bb8e63b889b579751f39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a4fb9726e7139368fb175adc848d1c22cdee35ed8e4bb8e63b889b579751f39e" "/opt/rustwide/cargo-home/bin/cargo" "+49a6044d37d694890450f52ceaceb66277a36b1e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking downcast-rs v1.0.3
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking xkbcommon v0.4.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.10 (https://github.com/smithay/wayland-rs#d1921970)
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.10 (https://github.com/smithay/wayland-rs#d1921970)
[INFO] [stderr]    Compiling wayland-client v0.21.10 (https://github.com/smithay/wayland-rs#d1921970)
[INFO] [stderr]    Compiling wayland-protocols v0.21.10 (https://github.com/smithay/wayland-rs#d1921970)
[INFO] [stderr]     Checking wayland-commons v0.21.10 (https://github.com/smithay/wayland-rs#d1921970)
[INFO] [stderr]     Checking linux-toolkit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::u32::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/wayland/mem_pool.rs:265:38
[INFO] [stdout]     |
[INFO] [stdout] 265 |         rng.gen_range(0, ::std::u32::MAX)
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::u32::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/wayland/mem_pool.rs:291:50
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     rng.gen_range(0, ::std::u32::MAX)
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/wayland/mem_pool.rs:113:31
[INFO] [stdout]     |
[INFO] [stdout] 113 |     implementation: Arc<Mutex<FnMut() + Send>>,
[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] 113 |     implementation: Arc<Mutex<dyn FnMut() + Send>>,
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::u32::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/wayland/mem_pool.rs:265:38
[INFO] [stdout]     |
[INFO] [stdout] 265 |         rng.gen_range(0, ::std::u32::MAX)
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::u32::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/wayland/mem_pool.rs:291:50
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     rng.gen_range(0, ::std::u32::MAX)
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/wayland/mem_pool.rs:113:31
[INFO] [stdout]     |
[INFO] [stdout] 113 |     implementation: Arc<Mutex<FnMut() + Send>>,
[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] 113 |     implementation: Arc<Mutex<dyn FnMut() + Send>>,
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `manager` is never read
[INFO] [stdout]   --> src/wayland/toplevel_manager.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct ToplevelManager {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 17 |     manager: Proxy<ZwlrForeignToplevelManagerV1>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ToplevelManager` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/wayland/cursor.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn get_cursor(&self, cursor_name: &str) -> Option<cursor::Cursor> {
[INFO] [stdout]    |                       ^^^^^ the lifetime is elided here   ^^^^^^^^^^^^^^ the same lifetime is hidden 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] 51 |     pub fn get_cursor(&self, cursor_name: &str) -> Option<cursor::Cursor<'_>> {
[INFO] [stdout]    |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/wayland/mem_pool.rs:257:38
[INFO] [stdout]     |
[INFO] [stdout] 257 |             Err(err) => unreachable!(err),
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `unreachable!()` 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: 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: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 257 |             Err(err) => unreachable!("{}", err),
[INFO] [stdout]     |                                      +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/wayland/mem_pool.rs:283:40
[INFO] [stdout]     |
[INFO] [stdout] 283 |                     Err(err) => panic!(err),
[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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 283 |                     Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                        +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 283 -                     Err(err) => panic!(err),
[INFO] [stdout] 283 +                     Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `manager` is never read
[INFO] [stdout]   --> src/wayland/toplevel_manager.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct ToplevelManager {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 17 |     manager: Proxy<ZwlrForeignToplevelManagerV1>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ToplevelManager` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/wayland/mem_pool.rs:285:36
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 Err(err) => panic!(err),
[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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                    +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 285 -                 Err(err) => panic!(err),
[INFO] [stdout] 285 +                 Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/wayland/mem_pool.rs:297:38
[INFO] [stdout]     |
[INFO] [stdout] 297 |             Err(err) => unreachable!(err),
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `unreachable!()` 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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 297 |             Err(err) => unreachable!("{}", err),
[INFO] [stdout]     |                                      +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/wayland/cursor.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn get_cursor(&self, cursor_name: &str) -> Option<cursor::Cursor> {
[INFO] [stdout]    |                       ^^^^^ the lifetime is elided here   ^^^^^^^^^^^^^^ the same lifetime is hidden 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] 51 |     pub fn get_cursor(&self, cursor_name: &str) -> Option<cursor::Cursor<'_>> {
[INFO] [stdout]    |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/wayland/mem_pool.rs:257:38
[INFO] [stdout]     |
[INFO] [stdout] 257 |             Err(err) => unreachable!(err),
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `unreachable!()` 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: 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: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 257 |             Err(err) => unreachable!("{}", err),
[INFO] [stdout]     |                                      +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/wayland/mem_pool.rs:283:40
[INFO] [stdout]     |
[INFO] [stdout] 283 |                     Err(err) => panic!(err),
[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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 283 |                     Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                        +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 283 -                     Err(err) => panic!(err),
[INFO] [stdout] 283 +                     Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/wayland/mem_pool.rs:285:36
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 Err(err) => panic!(err),
[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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                    +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 285 -                 Err(err) => panic!(err),
[INFO] [stdout] 285 +                 Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/wayland/mem_pool.rs:297:38
[INFO] [stdout]     |
[INFO] [stdout] 297 |             Err(err) => unreachable!(err),
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `unreachable!()` 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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 297 |             Err(err) => unreachable!("{}", err),
[INFO] [stdout]     |                                      +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.40s
[INFO] running `Command { std: "docker" "inspect" "a4fb9726e7139368fb175adc848d1c22cdee35ed8e4bb8e63b889b579751f39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4fb9726e7139368fb175adc848d1c22cdee35ed8e4bb8e63b889b579751f39e", kill_on_drop: false }`
[INFO] [stdout] a4fb9726e7139368fb175adc848d1c22cdee35ed8e4bb8e63b889b579751f39e
