[INFO] cloning repository https://github.com/matt-williams/enum-from-derive
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matt-williams/enum-from-derive" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-williams%2Fenum-from-derive", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-williams%2Fenum-from-derive'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3335f2976aabda0dadd3b4e349efaa765c631798
[INFO] testing matt-williams/enum-from-derive against 1.84.0 for beta-1.85-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-williams%2Fenum-from-derive" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matt-williams/enum-from-derive on toolchain 1.84.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.84.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matt-williams/enum-from-derive
[INFO] finished tweaking git repo https://github.com/matt-williams/enum-from-derive
[INFO] tweaked toml for git repo https://github.com/matt-williams/enum-from-derive written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/matt-williams/enum-from-derive 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" "+1.84.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.3.12
[INFO] [stderr]   Downloaded syn v0.11.4
[INFO] [stderr]   Downloaded try_from v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1df17507a44e2fd0705f88f8f2658c47dca6081832cb8619c2882823c4f29e77
[INFO] running `Command { std: "docker" "start" "-a" "1df17507a44e2fd0705f88f8f2658c47dca6081832cb8619c2882823c4f29e77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1df17507a44e2fd0705f88f8f2658c47dca6081832cb8619c2882823c4f29e77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1df17507a44e2fd0705f88f8f2658c47dca6081832cb8619c2882823c4f29e77", kill_on_drop: false }`
[INFO] [stdout] 1df17507a44e2fd0705f88f8f2658c47dca6081832cb8619c2882823c4f29e77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bad14148d83d9dfec5174ec93bc92dd479fc713c174a48bbd1d7ca38f36ae8b4
[INFO] running `Command { std: "docker" "start" "-a" "bad14148d83d9dfec5174ec93bc92dd479fc713c174a48bbd1d7ca38f36ae8b4", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling syn v0.11.4
[INFO] [stderr]    Compiling enum-from-derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/lib.rs:20:87
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...   .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumFrom}] requires all variants to have explicit va...
[INFO] [stdout]    |                                                                                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumFrom}] requires all variants to have explicit values", ...)))
[INFO] [stdout]    |                                                                                                                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("{}", "#[derive{EnumFrom}] requires all variants to have explicit values")))
[INFO] [stdout]    |                                                                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/lib.rs:50:87
[INFO] [stdout]    |
[INFO] [stdout] 50 | ...   .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumTryFrom}] requires all variants to have explicit...
[INFO] [stdout]    |                                                                                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 50 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumTryFrom}] requires all variants to have explicit values", ...)))
[INFO] [stdout]    |                                                                                                                                                    +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 50 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("{}", "#[derive{EnumTryFrom}] requires all variants to have explicit values")))
[INFO] [stdout]    |                                                                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.50s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.11.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "bad14148d83d9dfec5174ec93bc92dd479fc713c174a48bbd1d7ca38f36ae8b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bad14148d83d9dfec5174ec93bc92dd479fc713c174a48bbd1d7ca38f36ae8b4", kill_on_drop: false }`
[INFO] [stdout] bad14148d83d9dfec5174ec93bc92dd479fc713c174a48bbd1d7ca38f36ae8b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fe07bd76bcf91a484845873f34ce35e1d8717e5798f67658d14197f2d0abc1c
[INFO] running `Command { std: "docker" "start" "-a" "0fe07bd76bcf91a484845873f34ce35e1d8717e5798f67658d14197f2d0abc1c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling try_from v0.2.1
[INFO] [stderr]    Compiling syn v0.11.4
[INFO] [stderr]    Compiling enum-from-derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/lib.rs:20:87
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...   .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumFrom}] requires all variants to have explicit va...
[INFO] [stdout]    |                                                                                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumFrom}] requires all variants to have explicit values", ...)))
[INFO] [stdout]    |                                                                                                                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("{}", "#[derive{EnumFrom}] requires all variants to have explicit values")))
[INFO] [stdout]    |                                                                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/lib.rs:50:87
[INFO] [stdout]    |
[INFO] [stdout] 50 | ...   .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumTryFrom}] requires all variants to have explicit...
[INFO] [stdout]    |                                                                                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 50 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumTryFrom}] requires all variants to have explicit values", ...)))
[INFO] [stdout]    |                                                                                                                                                    +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 50 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("{}", "#[derive{EnumTryFrom}] requires all variants to have explicit values")))
[INFO] [stdout]    |                                                                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/lib.rs:20:87
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...   .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumFrom}] requires all variants to have explicit va...
[INFO] [stdout]    |                                                                                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumFrom}] requires all variants to have explicit values", ...)))
[INFO] [stdout]    |                                                                                                                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("{}", "#[derive{EnumFrom}] requires all variants to have explicit values")))
[INFO] [stdout]    |                                                                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/lib.rs:50:87
[INFO] [stdout]    |
[INFO] [stdout] 50 | ...   .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumTryFrom}] requires all variants to have explicit...
[INFO] [stdout]    |                                                                                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 50 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumTryFrom}] requires all variants to have explicit values", ...)))
[INFO] [stdout]    |                                                                                                                                                    +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 50 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("{}", "#[derive{EnumTryFrom}] requires all variants to have explicit values")))
[INFO] [stdout]    |                                                                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]   --> tests/u16.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     U16Enum::from(3 as u16);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let _ = U16Enum::from(3 as u16);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]   --> tests/u64.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     U16Enum::from(3 as u64);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let _ = U16Enum::from(3 as u64);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]   --> tests/u8.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     U8Enum::from(3 as u8);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let _ = U8Enum::from(3 as u8);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]   --> tests/u32.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     U32Enum::from(3 as u32);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let _ = U32Enum::from(3 as u32);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.57s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.11.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "0fe07bd76bcf91a484845873f34ce35e1d8717e5798f67658d14197f2d0abc1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe07bd76bcf91a484845873f34ce35e1d8717e5798f67658d14197f2d0abc1c", kill_on_drop: false }`
[INFO] [stdout] 0fe07bd76bcf91a484845873f34ce35e1d8717e5798f67658d14197f2d0abc1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43470778f83d17fcb0e9f8eb8f648acb5111e0c1f67caf1abeb0ae0fa95877e0
[INFO] running `Command { std: "docker" "start" "-a" "43470778f83d17fcb0e9f8eb8f648acb5111e0c1f67caf1abeb0ae0fa95877e0", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stderr]   --> src/lib.rs:20:87
[INFO] [stderr]    |
[INFO] [stderr] 20 | ...   .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumFrom}] requires all variants to have explicit va...
[INFO] [stderr]    |                                                                                     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]    |
[INFO] [stderr] 20 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumFrom}] requires all variants to have explicit values", ...)))
[INFO] [stderr]    |                                                                                                                                                 +++++
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 20 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("{}", "#[derive{EnumFrom}] requires all variants to have explicit values")))
[INFO] [stderr]    |                                                                              +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stderr]   --> src/lib.rs:50:87
[INFO] [stderr]    |
[INFO] [stderr] 50 | ...   .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumTryFrom}] requires all variants to have explicit...
[INFO] [stderr]    |                                                                                     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]    |
[INFO] [stderr] 50 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("#[derive{EnumTryFrom}] requires all variants to have explicit values", ...)))
[INFO] [stderr]    |                                                                                                                                                    +++++
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 50 |         .map(|variant| variant.discriminant.clone().unwrap_or_else(|| panic!("{}", "#[derive{EnumTryFrom}] requires all variants to have explicit values")))
[INFO] [stderr]    |                                                                              +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `enum-from-derive` (lib) generated 2 warnings (run `cargo fix --lib -p enum-from-derive` to apply 2 suggestions)
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]   --> tests/u16.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     U16Enum::from(3 as u16);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let _ = U16Enum::from(3 as u16);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]   --> tests/u32.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     U32Enum::from(3 as u32);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let _ = U32Enum::from(3 as u32);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]   --> tests/u8.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     U8Enum::from(3 as u8);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let _ = U8Enum::from(3 as u8);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]   --> tests/u64.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     U16Enum::from(3 as u64);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let _ = U16Enum::from(3 as u64);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `enum-from-derive` (test "u16") generated 1 warning
[INFO] [stderr] warning: `enum-from-derive` (test "u32") generated 1 warning
[INFO] [stderr] warning: `enum-from-derive` (test "u8") generated 1 warning
[INFO] [stderr] warning: `enum-from-derive` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: `enum-from-derive` (test "u64") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.11.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/enum_from_derive-97c9b6d62cfec14d)
[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]      Running tests/u16.rs (/opt/rustwide/target/debug/deps/u16-30c080e34a78d8c7)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test u16enum_foo_from ... ok
[INFO] [stdout] test u16enum_bar_from ... ok
[INFO] [stdout] test u16enum_foo_try_from ... ok
[INFO] [stdout] test u16enum_bar_try_from ... ok
[INFO] [stdout] test u16enum_unknown_try_from ... ok
[INFO] [stdout] test u16enum_unknown_from - should panic ... ok
[INFO] [stdout] 
[INFO] [stderr]      Running tests/u32.rs (/opt/rustwide/target/debug/deps/u32-2a93f6640c4c6d12)
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test u32enum_bar_from ... ok
[INFO] [stdout] test u32enum_bar_try_from ... ok
[INFO] [stdout] test u32enum_foo_from ... ok
[INFO] [stdout] test u32enum_unknown_try_from ... ok
[INFO] [stdout] test u32enum_foo_try_from ... ok
[INFO] [stdout] test u32enum_unknown_from - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/u64.rs (/opt/rustwide/target/debug/deps/u64-916db379a7a7fc80)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test u64enum_unknown_try_from ... ok
[INFO] [stdout] test u64enum_foo_from ... ok
[INFO] [stdout] test u64enum_bar_from ... ok
[INFO] [stdout] test u64enum_bar_try_from ... ok
[INFO] [stdout] test u64enum_foo_try_from ... ok
[INFO] [stdout] test u64enum_unknown_from - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/u8.rs (/opt/rustwide/target/debug/deps/u8-0fd92f75507cb596)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test u8enum_bar_from ... ok
[INFO] [stdout] test u8enum_foo_from ... ok
[INFO] [stdout] test u8enum_foo_try_from ... ok
[INFO] [stdout] test u8enum_bar_try_from ... ok
[INFO] [stdout] test u8enum_unknown_try_from ... ok
[INFO] [stdout] test u8enum_unknown_from - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests enum_from_derive
[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" "43470778f83d17fcb0e9f8eb8f648acb5111e0c1f67caf1abeb0ae0fa95877e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43470778f83d17fcb0e9f8eb8f648acb5111e0c1f67caf1abeb0ae0fa95877e0", kill_on_drop: false }`
[INFO] [stdout] 43470778f83d17fcb0e9f8eb8f648acb5111e0c1f67caf1abeb0ae0fa95877e0