[INFO] fetching crate helgoboss-midi 0.2.0...
[INFO] checking helgoboss-midi-0.2.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate helgoboss-midi 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate helgoboss-midi 0.2.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate helgoboss-midi 0.2.0
[INFO] finished tweaking crates.io crate helgoboss-midi 0.2.0
[INFO] tweaked toml for crates.io crate helgoboss-midi 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20d3f096ac5d3416c704205e75b43b20d25eb7c708330e3049936efdbf2c2495
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "20d3f096ac5d3416c704205e75b43b20d25eb7c708330e3049936efdbf2c2495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20d3f096ac5d3416c704205e75b43b20d25eb7c708330e3049936efdbf2c2495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d3f096ac5d3416c704205e75b43b20d25eb7c708330e3049936efdbf2c2495", kill_on_drop: false }`
[INFO] [stdout] 20d3f096ac5d3416c704205e75b43b20d25eb7c708330e3049936efdbf2c2495
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf7efc26cd2ff635b37b1f12d5408fc9d11907df4b5a9a83f342dab28b55bcce
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cf7efc26cd2ff635b37b1f12d5408fc9d11907df4b5a9a83f342dab28b55bcce", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking semver-parser v0.9.0
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling core-error v0.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking unicase v2.6.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking version-sync v0.9.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking helgoboss-midi v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/channel_mod.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / newtype! {
[INFO] [stdout] 4  | |     #[doc = r"A MIDI channel (0 - 15)."]
[INFO] [stdout] 5  | |     name = Channel, repr = u8, max = 15
[INFO] [stdout] 6  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/key_number_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A key number (0 - 127), e.g. of a MIDI Note On message."]
[INFO] [stdout] 4  | |     name = KeyNumber, repr = u8, max = 127
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/controller_number_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A controller number (0 - 127) of a MIDI Control Change message."]
[INFO] [stdout] 4  | |     name = ControllerNumber, repr = u8, max = 127
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/u4_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A 4-bit integer (0 - 15)."]
[INFO] [stdout] 4  | |     name = U4, repr = u8, max = 15
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/u7_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A 7-bit integer (0 - 127)."]
[INFO] [stdout] 4  | |     name = U7, repr = u8, max = 127
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/u14_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A 14-bit integer (0 - 16383)."]
[INFO] [stdout] 4  | |     name = U14, repr = u16, max = 16383
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/channel_mod.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / newtype! {
[INFO] [stdout] 4  | |     #[doc = r"A MIDI channel (0 - 15)."]
[INFO] [stdout] 5  | |     name = Channel, repr = u8, max = 15
[INFO] [stdout] 6  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/key_number_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A key number (0 - 127), e.g. of a MIDI Note On message."]
[INFO] [stdout] 4  | |     name = KeyNumber, repr = u8, max = 127
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/controller_number_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A controller number (0 - 127) of a MIDI Control Change message."]
[INFO] [stdout] 4  | |     name = ControllerNumber, repr = u8, max = 127
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/u4_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A 4-bit integer (0 - 15)."]
[INFO] [stdout] 4  | |     name = U4, repr = u8, max = 15
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/u7_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A 7-bit integer (0 - 127)."]
[INFO] [stdout] 4  | |     name = U7, repr = u8, max = 127
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/newtype_macros.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |                           assert!($name::is_valid(value), format!(concat!("{} is not a valid ", stringify!($name), " value"), value));
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/u14_mod.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / newtype! {
[INFO] [stdout] 3  | |     #[doc = r"A 14-bit integer (0 - 16383)."]
[INFO] [stdout] 4  | |     name = U14, repr = u16, max = 16383
[INFO] [stdout] 5  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         assert!($name::is_valid(value), concat!("{} is not a valid ", stringify!($name), " value"), value);
[INFO] [stdout]    |                                                        --                                                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.43s
[INFO] running `Command { std: "docker" "inspect" "cf7efc26cd2ff635b37b1f12d5408fc9d11907df4b5a9a83f342dab28b55bcce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf7efc26cd2ff635b37b1f12d5408fc9d11907df4b5a9a83f342dab28b55bcce", kill_on_drop: false }`
[INFO] [stdout] cf7efc26cd2ff635b37b1f12d5408fc9d11907df4b5a9a83f342dab28b55bcce