[INFO] cloning repository https://github.com/tomasz-klak/layout
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomasz-klak/layout" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomasz-klak%2Flayout", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomasz-klak%2Flayout'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bdf8227613c37edca51321b6411e9b25b1723e6a
[INFO] checking tomasz-klak/layout against master#96df4943409564a187894018f15f795426dc2e1f for pr-118968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomasz-klak%2Flayout" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomasz-klak/layout on toolchain 96df4943409564a187894018f15f795426dc2e1f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96df4943409564a187894018f15f795426dc2e1f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomasz-klak/layout
[INFO] finished tweaking git repo https://github.com/tomasz-klak/layout
[INFO] tweaked toml for git repo https://github.com/tomasz-klak/layout written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tomasz-klak/layout 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" "+96df4943409564a187894018f15f795426dc2e1f" "fetch" "--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
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking tomasz-klak/layout against try#7e4f74fb8736fea8f455bb6e094122965ae8f4cd for pr-118968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomasz-klak%2Flayout" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomasz-klak/layout on toolchain 7e4f74fb8736fea8f455bb6e094122965ae8f4cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomasz-klak/layout
[INFO] finished tweaking git repo https://github.com/tomasz-klak/layout
[INFO] tweaked toml for git repo https://github.com/tomasz-klak/layout written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tomasz-klak/layout 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" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "fetch" "--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
[ERROR] error running command: no output for 300 seconds
[INFO] checking tomasz-klak/layout against try#7e4f74fb8736fea8f455bb6e094122965ae8f4cd for pr-118968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomasz-klak%2Flayout" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomasz-klak/layout on toolchain 7e4f74fb8736fea8f455bb6e094122965ae8f4cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomasz-klak/layout
[INFO] finished tweaking git repo https://github.com/tomasz-klak/layout
[INFO] tweaked toml for git repo https://github.com/tomasz-klak/layout written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tomasz-klak/layout 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" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "fetch" "--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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a97c86d6f83805b01b1f299325f402b11043280982c2420e7741958d94ae66f
[INFO] running `Command { std: "docker" "start" "-a" "4a97c86d6f83805b01b1f299325f402b11043280982c2420e7741958d94ae66f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a97c86d6f83805b01b1f299325f402b11043280982c2420e7741958d94ae66f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a97c86d6f83805b01b1f299325f402b11043280982c2420e7741958d94ae66f", kill_on_drop: false }`
[INFO] [stdout] 4a97c86d6f83805b01b1f299325f402b11043280982c2420e7741958d94ae66f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94cdf45d3d5653b70b64a73ec594f87ce0848f507d7438851a8b6441dce0fe56
[INFO] running `Command { std: "docker" "start" "-a" "94cdf45d3d5653b70b64a73ec594f87ce0848f507d7438851a8b6441dce0fe56", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking layout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::mem::size_of`
[INFO] [stdout]  --> src/simple.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::size_of;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::size_of`
[INFO] [stdout]  --> src/simple_structs.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::size_of;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memoffset::offset_of`
[INFO] [stdout]  --> src/structs.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use memoffset::offset_of;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `align_of`, `size_of`
[INFO] [stdout]  --> src/structs.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem::{align_of, size_of};
[INFO] [stdout]   |                ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::size_of`
[INFO] [stdout]  --> src/pointers.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::size_of;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/pointers.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/pointers.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::size_of`
[INFO] [stdout]  --> src/sequences.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::size_of;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smallvec::SmallVec`
[INFO] [stdout]  --> src/sequences.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use smallvec::SmallVec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `align_of`, `size_of`
[INFO] [stdout]  --> src/enums.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::{align_of, size_of};
[INFO] [stdout]   |                ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/unit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `align_of`, `size_of`
[INFO] [stdout]  --> src/unit.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem::{align_of, size_of};
[INFO] [stdout]   |                ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S` is never constructed
[INFO] [stdout]  --> src/simple_structs.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct S<T>(T);
[INFO] [stdout]   |        ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `U8_and_U64` should have an upper camel case name
[INFO] [stdout]  --> src/structs.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     struct U8_and_U64 {
[INFO] [stdout]   |            ^^^^^^^^^^ help: convert the identifier to upper camel case: `U8AndU64`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `U64_and_U8` should have an upper camel case name
[INFO] [stdout]   --> src/structs.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct U64_and_U8 {
[INFO] [stdout]    |            ^^^^^^^^^^ help: convert the identifier to upper camel case: `U64AndU8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `U8_U8_U8` should have an upper camel case name
[INFO] [stdout]   --> src/structs.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     struct U8_U8_U8(u8, u8, u8);
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to upper camel case: `U8U8U8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `U8_and_U64` should have an upper camel case name
[INFO] [stdout]   --> src/structs.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     struct U8_and_U64 {
[INFO] [stdout]    |            ^^^^^^^^^^ help: convert the identifier to upper camel case: `U8AndU64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `U64_and_U8` should have an upper camel case name
[INFO] [stdout]   --> src/structs.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     struct U64_and_U8 {
[INFO] [stdout]    |            ^^^^^^^^^^ help: convert the identifier to upper camel case: `U64AndU8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `U8_U8_U8` should have an upper camel case name
[INFO] [stdout]   --> src/structs.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     struct U8_U8_U8(u8, u8, u8);
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to upper camel case: `U8U8U8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/pointers.rs:136:20
[INFO] [stdout]     |
[INFO] [stdout] 136 |     trait Marker {};
[INFO] [stdout]     |                    ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `U64_and_U64` should have an upper camel case name
[INFO] [stdout]  --> src/enums.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         U64_and_U64(u64, u64),
[INFO] [stdout]   |         ^^^^^^^^^^^ help: convert the identifier to upper camel case: `U64AndU64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `U32_and_U64` should have an upper camel case name
[INFO] [stdout]   --> src/enums.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         U32_and_U64(u32, u64),
[INFO] [stdout]    |         ^^^^^^^^^^^ help: convert the identifier to upper camel case: `U32AndU64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `U32_and_U64` should have an upper camel case name
[INFO] [stdout]   --> src/enums.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         U32_and_U64(Inner),
[INFO] [stdout]    |         ^^^^^^^^^^^ help: convert the identifier to upper camel case: `U32AndU64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `U32_and_U64` should have an upper camel case name
[INFO] [stdout]   --> src/enums.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         U32_and_U64(Inner),
[INFO] [stdout]    |         ^^^^^^^^^^^ help: convert the identifier to upper camel case: `U32AndU64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `U32_and_U64` should have an upper camel case name
[INFO] [stdout]   --> src/enums.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         U32_and_U64(NonZeroU64, u64),
[INFO] [stdout]    |         ^^^^^^^^^^^ help: convert the identifier to upper camel case: `U32AndU64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `U32_and_U64` should have an upper camel case name
[INFO] [stdout]   --> src/enums.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         U32_and_U64(NonZeroU64, u64),
[INFO] [stdout]    |         ^^^^^^^^^^^ help: convert the identifier to upper camel case: `U32AndU64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `U32_and_U64` should have an upper camel case name
[INFO] [stdout]   --> src/enums.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         U32_and_U64(u32, u64),
[INFO] [stdout]    |         ^^^^^^^^^^^ help: convert the identifier to upper camel case: `U32AndU64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `small` and `big` are never read
[INFO] [stdout]   --> src/structs.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     struct U8_and_U64 {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 34 |         small: u8,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 35 |         big: u64,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `big` and `small` are never read
[INFO] [stdout]   --> src/structs.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     struct U64_and_U8 {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 39 |         big: u64,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 40 |         small: u8,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None` and `U64_and_U64` are never constructed
[INFO] [stdout]  --> src/enums.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     enum E {
[INFO] [stdout]   |          - variants in this enum
[INFO] [stdout] 6 |         None,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 7 |         U64_and_U64(u64, u64),
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None` and `U32_and_U64` are never constructed
[INFO] [stdout]   --> src/enums.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     enum E {
[INFO] [stdout]    |          - variants in this enum
[INFO] [stdout] 17 |         None,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 18 |         U32_and_U64(u32, u64),
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None` and `U32_and_U64` are never constructed
[INFO] [stdout]   --> src/enums.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     enum E {
[INFO] [stdout]    |          - variants in this enum
[INFO] [stdout] 31 |         None,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 32 |         U32_and_U64(Inner),
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None` and `U32_and_U64` are never constructed
[INFO] [stdout]   --> src/enums.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     enum E {
[INFO] [stdout]    |          - variants in this enum
[INFO] [stdout] 56 |         None,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 57 |         U32_and_U64(Inner),
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None` and `U32_and_U64` are never constructed
[INFO] [stdout]   --> src/enums.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     enum E {
[INFO] [stdout]    |          - variants in this enum
[INFO] [stdout] 68 |         None,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 69 |         U32_and_U64(NonZeroU64, u64),
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `A`, `B`, and `U32_and_U64` are never constructed
[INFO] [stdout]   --> src/enums.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     enum E {
[INFO] [stdout]    |          - variants in this enum
[INFO] [stdout] 80 |         A,
[INFO] [stdout]    |         ^
[INFO] [stdout] 81 |         B,
[INFO] [stdout]    |         ^
[INFO] [stdout] 82 |         U32_and_U64(NonZeroU64, u64),
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `A`, `B`, and `U32_and_U64` are never constructed
[INFO] [stdout]   --> src/enums.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     enum E2 {
[INFO] [stdout]    |          -- variants in this enum
[INFO] [stdout] 89 |         A,
[INFO] [stdout]    |         ^
[INFO] [stdout] 90 |         B,
[INFO] [stdout]    |         ^
[INFO] [stdout] 91 |         U32_and_U64(u32, u64),
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "94cdf45d3d5653b70b64a73ec594f87ce0848f507d7438851a8b6441dce0fe56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94cdf45d3d5653b70b64a73ec594f87ce0848f507d7438851a8b6441dce0fe56", kill_on_drop: false }`
[INFO] [stdout] 94cdf45d3d5653b70b64a73ec594f87ce0848f507d7438851a8b6441dce0fe56