[INFO] cloning repository https://github.com/clemado1/rust-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clemado1/rust-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclemado1%2Frust-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclemado1%2Frust-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc8cf6772642349b3f72cd7eb2c29765873e1404
[INFO] checking clemado1/rust-exercise against master#9e293ae9f8abecb0be5105787d181518c9012a19 for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclemado1%2Frust-exercise" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/clemado1/rust-exercise
[INFO] finished tweaking git repo https://github.com/clemado1/rust-exercise
[INFO] tweaked toml for git repo https://github.com/clemado1/rust-exercise written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/clemado1/rust-exercise on toolchain 9e293ae9f8abecb0be5105787d181518c9012a19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/clemado1/rust-exercise 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" "+9e293ae9f8abecb0be5105787d181518c9012a19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: d4_builder_derive/Cargo.toml: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `d4_builder_derive` library target)
[INFO] [stderr] warning: `d4_builder_derive` (manifest) generated 1 warning
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rayon-core v1.9.1
[INFO] [stderr]   Downloaded num_cpus v1.13.0
[INFO] [stderr]   Downloaded scopeguard v1.1.0
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded failure_derive v0.1.8
[INFO] [stderr]   Downloaded either v1.6.1
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded adler v0.2.3
[INFO] [stderr]   Downloaded synstructure v0.12.4
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded addr2line v0.14.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.18
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.5
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.5
[INFO] [stderr]   Downloaded failure v0.1.8
[INFO] [stderr]   Downloaded rayon v1.5.1
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded miniz_oxide v0.4.3
[INFO] [stderr]   Downloaded serde v1.0.117
[INFO] [stderr]   Downloaded serde_derive v1.0.117
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.1
[INFO] [stderr]   Downloaded backtrace v0.3.54
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded serde_json v1.0.59
[INFO] [stderr]   Downloaded object v0.22.0
[INFO] [stderr]   Downloaded syn v1.0.45
[INFO] [stderr]   Downloaded libc v0.2.62
[INFO] [stderr]   Downloaded gimli v0.23.0
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83a0e9667c37bfaca71d3ae3d6857d78d3d862c9bfb5ea6168a6436ef19d72e8
[INFO] running `Command { std: "docker" "start" "-a" "83a0e9667c37bfaca71d3ae3d6857d78d3d862c9bfb5ea6168a6436ef19d72e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83a0e9667c37bfaca71d3ae3d6857d78d3d862c9bfb5ea6168a6436ef19d72e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83a0e9667c37bfaca71d3ae3d6857d78d3d862c9bfb5ea6168a6436ef19d72e8", kill_on_drop: false }`
[INFO] [stdout] 83a0e9667c37bfaca71d3ae3d6857d78d3d862c9bfb5ea6168a6436ef19d72e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60847bdaf334de36fe286eea85e63a2d9cb0731892ad55a2620239b82e1c6330
[INFO] running `Command { std: "docker" "start" "-a" "60847bdaf334de36fe286eea85e63a2d9cb0731892ad55a2620239b82e1c6330", kill_on_drop: false }`
[INFO] [stderr] warning: d4_builder_derive/Cargo.toml: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `d4_builder_derive` library target)
[INFO] [stderr] warning: `d4_builder_derive` (manifest) generated 1 warning
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking blog v0.1.0 (/opt/rustwide/workdir/blog)
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]   --> blog/src/lib.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn content<'a>(&self, post: &'a Post) -> &'a str {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `State` is never used
[INFO] [stdout]   --> blog/src/lib.rs:65:7
[INFO] [stdout]    |
[INFO] [stdout] 65 | trait State {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Draft` is never constructed
[INFO] [stdout]   --> blog/src/lib.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct Draft {}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PendingReview` is never constructed
[INFO] [stdout]   --> blog/src/lib.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | struct PendingReview {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking gui v0.1.0 (/opt/rustwide/workdir/gui)
[INFO] [stderr]    Compiling d4_builder_derive v0.1.0 (/opt/rustwide/workdir/d4_builder_derive)
[INFO] [stdout] warning: value assigned to `ttype` is never read
[INFO] [stdout]   --> d4_builder_derive/src/lib.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         ttype = top.next().unwrap();
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d4_builder v0.1.0 (/opt/rustwide/workdir/d4_builder)
[INFO] [stderr] Row = Row { name: "name", ttype: "String" }
[INFO] [stderr] Row = Row { name: "strength", ttype: "i32" }
[INFO] [stderr] Row = Row { name: "health", ttype: "i32" }
[INFO] [stderr] Row = Row { name: "cost", ttype: "i32" }
[INFO] [stderr] Row = Row { name: "abilities", ttype: "Vec<Ability>" }
[INFO] [stderr] Row = Row { name: "triggers", ttype: "BTreeMap<Trigger,String>" }
[INFO] [stderr] Res == impl Card {
[INFO] [stderr]             
[INFO] [stderr]             fn set_name(&mut self, v:String) {
[INFO] [stderr]                 self.name = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_strength(&mut self, v:i32) {
[INFO] [stderr]                 self.strength = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_health(&mut self, v:i32) {
[INFO] [stderr]                 self.health = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_cost(&mut self, v:i32) {
[INFO] [stderr]                 self.cost = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_abilities(&mut self, v:Vec<Ability>) {
[INFO] [stderr]                 self.abilities = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_triggers(&mut self, v:BTreeMap<Trigger,String>) {
[INFO] [stderr]                 self.triggers = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]         }
[INFO] [stdout] warning: unused macro definition: `svg`
[INFO] [stdout]  --> d4_builder/src/svc_mac.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | macro_rules! svg {
[INFO] [stdout]   |              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d4_builder/src/lib.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn x<V: Display>(mut self, v: V) -> Self {
[INFO] [stdout]    |                          ----^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d4_builder/src/lib.rs:48:26
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn y<V: Display>(mut self, v: V) -> Self {
[INFO] [stdout]    |                          ----^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d4_builder/src/lib.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn w<V: Display>(mut self, v: V) -> Self {
[INFO] [stdout]    |                          ----^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d4_builder/src/lib.rs:56:26
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn h<V: Display>(mut self, v: V) -> Self {
[INFO] [stdout]    |                          ----^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Ability` is never used
[INFO] [stdout]  --> d4_builder/src/card.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Ability {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Trigger` is never used
[INFO] [stdout]   --> d4_builder/src/card.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Trigger {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Card` is never constructed
[INFO] [stdout]   --> d4_builder/src/card.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Card {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CardBuilder` is never constructed
[INFO] [stdout]   --> d4_builder/src/card.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct CardBuilder {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `strength`, `health`, `cost`, `trigger`, and `build` are never used
[INFO] [stdout]   --> d4_builder/src/card.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl CardBuilder {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 52 |     pub fn new (name: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn strength(mut self, s: i32) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn health(mut self, s: i32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn cost(mut self, s: i32) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn trigger(mut self, t: Trigger, s: String) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn build(self) -> Card {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `build` is never used
[INFO] [stdout]   --> d4_builder/src/card.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 91 | impl Card {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 92 |     pub fn build(name: String) -> CardBuilder {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Triggerable` is never used
[INFO] [stdout]   --> d4_builder/src/card.rs:97:11
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub trait Triggerable {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TriggerWrap` is never constructed
[INFO] [stdout]    --> d4_builder/src/card.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct TriggerWrap<A: Triggerable, B: Triggerable> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rust_exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] Row = Row { name: "name", ttype: "String" }
[INFO] [stderr] Row = Row { name: "strength", ttype: "i32" }
[INFO] [stderr] Row = Row { name: "health", ttype: "i32" }
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> d4_builder/src/svc_mac.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Row = Row { name: "cost", ttype: "i32" }
[INFO] [stderr] Row = Row { name: "abilities", ttype: "Vec<Ability>" }
[INFO] [stderr] Row = Row { name: "triggers", ttype: "BTreeMap<Trigger,String>" }
[INFO] [stderr] Res == impl Card {
[INFO] [stderr]             
[INFO] [stderr]             fn set_name(&mut self, v:String) {
[INFO] [stderr]                 self.name = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_strength(&mut self, v:i32) {
[INFO] [stderr]                 self.strength = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_health(&mut self, v:i32) {
[INFO] [stderr]                 self.health = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_cost(&mut self, v:i32) {
[INFO] [stderr]                 self.cost = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_abilities(&mut self, v:Vec<Ability>) {
[INFO] [stderr]                 self.abilities = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]             fn set_triggers(&mut self, v:BTreeMap<Trigger,String>) {
[INFO] [stderr]                 self.triggers = v;
[INFO] [stderr]             }
[INFO] [stderr]             
[INFO] [stderr]         }
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d4_builder/src/lib.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn x<V: Display>(mut self, v: V) -> Self {
[INFO] [stdout]    |                          ----^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d4_builder/src/lib.rs:48:26
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn y<V: Display>(mut self, v: V) -> Self {
[INFO] [stdout]    |                          ----^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d4_builder/src/lib.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn w<V: Display>(mut self, v: V) -> Self {
[INFO] [stdout]    |                          ----^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d4_builder/src/lib.rs:56:26
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn h<V: Display>(mut self, v: V) -> Self {
[INFO] [stdout]    |                          ----^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Charge` and `Taunt` are never constructed
[INFO] [stdout]  --> d4_builder/src/card.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Ability {
[INFO] [stdout]   |          ------- variants in this enum
[INFO] [stdout] 6 |     Charge,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     Taunt,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Ability` has a derived impl for the trait `Debug`, 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: variants `EnemyDeath` and `Damage` are never constructed
[INFO] [stdout]   --> d4_builder/src/card.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Trigger {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 14 |     EnemyDeath,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 15 |     Damage,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Trigger` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `health` and `cost` are never used
[INFO] [stdout]   --> d4_builder/src/card.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl CardBuilder {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn health(mut self, s: i32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn cost(mut self, s: i32) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d2_iterators v0.1.0 (/opt/rustwide/workdir/d2_iterators)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]  --> d2_iterators/src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |     print_any((&["hello", "world"]));
[INFO] [stdout]   |               ^                   ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 -     print_any((&["hello", "world"]));
[INFO] [stdout] 8 +     print_any(&["hello", "world"] );
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> d2_iterators/src/combi.rs:53:41
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let v: Vec<&str> = s.split(" ").intersperse(",").collect();
[INFO] [stdout]    |                                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout]   --> d2_iterators/src/lib.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 + #![feature(iter_intersperse)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d2_iterators/src/gen_range.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut it = GenRangeIterator::new(5., 12., 2.5);
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> d2_iterators/src/lib.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut it = RangeIterator::new(5, 12, 3);
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_c` is never used
[INFO] [stdout]   --> d2_iterators/src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn print_c<I: Iterator<Item=String>> (v: I) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]  --> d2_iterators/src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |     print_any((&["hello", "world"]));
[INFO] [stdout]   |               ^                   ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 -     print_any((&["hello", "world"]));
[INFO] [stdout] 8 +     print_any(&["hello", "world"] );
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]   --> blog/src/lib.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn content<'a>(&self, post: &'a Post) -> &'a str {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `State` is never used
[INFO] [stdout]   --> blog/src/lib.rs:65:7
[INFO] [stdout]    |
[INFO] [stdout] 65 | trait State {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Draft` is never constructed
[INFO] [stdout]   --> blog/src/lib.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct Draft {}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PendingReview` is never constructed
[INFO] [stdout]   --> blog/src/lib.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | struct PendingReview {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_c` is never used
[INFO] [stdout]   --> d2_iterators/src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn print_c<I: Iterator<Item=String>> (v: I) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ttype` is never read
[INFO] [stdout]   --> d4_builder_derive/src/lib.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         ttype = top.next().unwrap();
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir/leetcode)
[INFO] [stdout] warning: value assigned to `ttype` is never read
[INFO] [stdout]   --> d4_builder_derive/src/lib.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         ttype = top.next().unwrap();
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking d3_lifetimes v0.1.0 (/opt/rustwide/workdir/d3_lifetimes)
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WithLife` is never constructed
[INFO] [stdout]  --> d3_lifetimes/src/v3_rc.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct WithLife<'a> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoLife` is never constructed
[INFO] [stdout]   --> d3_lifetimes/src/v3_rc.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct NoLife {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> d3_lifetimes/src/v3_rc.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn main() -> Result<(), std::io::Error> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_no_life` is never used
[INFO] [stdout]   --> d3_lifetimes/src/v3_rc.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn make_no_life(fname: &str) -> Result<(NoLife, NoLife), std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> d3_lifetimes/src/v4_channels.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_arc` is never used
[INFO] [stdout]  --> d3_lifetimes/src/v4_channels.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn with_arc() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_channels` is never used
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn with_channels() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     done_s.send(());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     let _ = done_s.send(());
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WithLife` is never constructed
[INFO] [stdout]  --> d3_lifetimes/src/v3_rc.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct WithLife<'a> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoLife` is never constructed
[INFO] [stdout]   --> d3_lifetimes/src/v3_rc.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct NoLife {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> d3_lifetimes/src/v3_rc.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn main() -> Result<(), std::io::Error> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_no_life` is never used
[INFO] [stdout]   --> d3_lifetimes/src/v3_rc.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn make_no_life(fname: &str) -> Result<(NoLife, NoLife), std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> d3_lifetimes/src/v4_channels.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_arc` is never used
[INFO] [stdout]  --> d3_lifetimes/src/v4_channels.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn with_arc() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_channels` is never used
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn with_channels() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     done_s.send(());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     let _ = done_s.send(());
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     done_s.send(());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     let _ = done_s.send(());
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `s` and `t` are never read
[INFO] [stdout]  --> d3_lifetimes/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct StringHolder<'a> {
[INFO] [stdout]   |            ------------ fields in this struct
[INFO] [stdout] 3 |     s: &'a str,
[INFO] [stdout]   |     ^
[INFO] [stdout] 4 |     t: &'a str,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StringHolder` has a derived impl for the trait `Debug`, 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: field `s` is never read
[INFO] [stdout]  --> d3_lifetimes/src/v3_rc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct WithLife<'a> {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 6 |     s: &'a String,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `WithLife` has a derived impl for the trait `Debug`, 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: unused variable: `e`
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `s` and `t` are never read
[INFO] [stdout]  --> d3_lifetimes/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct StringHolder<'a> {
[INFO] [stdout]   |            ------------ fields in this struct
[INFO] [stdout] 3 |     s: &'a str,
[INFO] [stdout]   |     ^
[INFO] [stdout] 4 |     t: &'a str,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StringHolder` has a derived impl for the trait `Debug`, 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: unused `Result` that must be used
[INFO] [stdout]   --> d3_lifetimes/src/v4_channels.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     done_s.send(());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     let _ = done_s.send(());
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `s` is never read
[INFO] [stdout]  --> d3_lifetimes/src/v3_rc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct WithLife<'a> {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 6 |     s: &'a String,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `WithLife` has a derived impl for the trait `Debug`, 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] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking d1_filework v0.1.0 (/opt/rustwide/workdir/d1_filework)
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]  --> d1_filework/src/error.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, Fail)]
[INFO] [stdout]   |                 ^---
[INFO] [stdout]   |                 |
[INFO] [stdout]   |                 `Fail` is not local
[INFO] [stdout]   |                 move the `impl` block outside of this constant `_DERIVE_failure_Fail_FOR_TransactionError`
[INFO] [stdout] 4 | pub enum TransactionError {
[INFO] [stdout]   |          ---------------- `TransactionError` is not local
[INFO] [stdout]   |
[INFO] [stdout]   = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]   = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive`
[INFO] [stdout]   = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]   = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]   = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]   = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]  --> d1_filework/src/error.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, Fail)]
[INFO] [stdout]   |                 ^---
[INFO] [stdout]   |                 |
[INFO] [stdout]   |                 `Display` is not local
[INFO] [stdout]   |                 move the `impl` block outside of this constant `_DERIVE_failure_core_fmt_Display_FOR_TransactionError`
[INFO] [stdout] 4 | pub enum TransactionError {
[INFO] [stdout]   |          ---------------- `TransactionError` is not local
[INFO] [stdout]   |
[INFO] [stdout]   = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]   = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive`
[INFO] [stdout]   = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]   = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]   = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]  --> d1_filework/src/error.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, Fail)]
[INFO] [stdout]   |                 ^---
[INFO] [stdout]   |                 |
[INFO] [stdout]   |                 `Fail` is not local
[INFO] [stdout]   |                 move the `impl` block outside of this constant `_DERIVE_failure_Fail_FOR_TransactionError`
[INFO] [stdout] 4 | pub enum TransactionError {
[INFO] [stdout]   |          ---------------- `TransactionError` is not local
[INFO] [stdout]   |
[INFO] [stdout]   = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]   = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive`
[INFO] [stdout]   = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]   = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]   = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]   = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]  --> d1_filework/src/error.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, Fail)]
[INFO] [stdout]   |                 ^---
[INFO] [stdout]   |                 |
[INFO] [stdout]   |                 `Display` is not local
[INFO] [stdout]   |                 move the `impl` block outside of this constant `_DERIVE_failure_core_fmt_Display_FOR_TransactionError`
[INFO] [stdout] 4 | pub enum TransactionError {
[INFO] [stdout]   |          ---------------- `TransactionError` is not local
[INFO] [stdout]   |
[INFO] [stdout]   = note: the derive macro `Fail` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]   = note: the derive macro `Fail` may come from an old version of the `failure_derive` crate, try updating your dependency with `cargo update -p failure_derive`
[INFO] [stdout]   = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]   = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]   = note: this warning originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.08s
[INFO] running `Command { std: "docker" "inspect" "60847bdaf334de36fe286eea85e63a2d9cb0731892ad55a2620239b82e1c6330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60847bdaf334de36fe286eea85e63a2d9cb0731892ad55a2620239b82e1c6330", kill_on_drop: false }`
[INFO] [stdout] 60847bdaf334de36fe286eea85e63a2d9cb0731892ad55a2620239b82e1c6330
