[INFO] fetching crate enumTutor 0.1.0...
[INFO] checking enumTutor-0.1.0 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate enumTutor 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate enumTutor 0.1.0 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enumTutor 0.1.0
[INFO] finished tweaking crates.io crate enumTutor 0.1.0
[INFO] tweaked toml for crates.io crate enumTutor 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate enumTutor 0.1.0 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded machine-ip v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc73dd6d552061b027ab648deff8cd2f15687abd4f655421c16538009f6e3611
[INFO] running `Command { std: "docker" "start" "-a" "fc73dd6d552061b027ab648deff8cd2f15687abd4f655421c16538009f6e3611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc73dd6d552061b027ab648deff8cd2f15687abd4f655421c16538009f6e3611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc73dd6d552061b027ab648deff8cd2f15687abd4f655421c16538009f6e3611", kill_on_drop: false }`
[INFO] [stdout] fc73dd6d552061b027ab648deff8cd2f15687abd4f655421c16538009f6e3611
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 277a59d78b586d98ac52dcd8ce68e484d4f8d856f856f85babe56658a3d293e0
[INFO] running `Command { std: "docker" "start" "-a" "277a59d78b586d98ac52dcd8ce68e484d4f8d856f856f85babe56658a3d293e0", kill_on_drop: false }`
[INFO] [stderr]     Checking machine-ip v0.2.1
[INFO] [stderr]     Checking enumTutor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `home`
[INFO] [stdout]   --> src/main.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let home = IpAddr{
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_home`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loopback`
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let loopback = IpAddr{
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/main.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let some_number = Some(5);
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_string`
[INFO] [stdout]   --> src/main.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let some_string = Some("darwin subramaniam");
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `home`
[INFO] [stdout]   --> src/main.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let home = IpAddr{
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_home`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let x:i8 = 5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loopback`
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let loopback = IpAddr{
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let y: Option<i8> = Some(5);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/main.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let some_number = Some(5);
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_string`
[INFO] [stdout]   --> src/main.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let some_string = Some("darwin subramaniam");
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let x:i8 = 5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let y: Option<i8> = Some(5);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct IpAddr {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 11 |     kind: IpAddrKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `red`, `blue`, and `green` are never read
[INFO] [stdout]   --> src/main.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     ChangeColor{red:i32,blue:i32,green:i32},
[INFO] [stdout]    |     ----------- ^^^     ^^^^     ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit` and `Move` are never constructed
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum Message{
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 16 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     Move{x:i32,y:i32},
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct IpAddr {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 11 |     kind: IpAddrKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Alaska` is never constructed
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum UsState {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 31 |     Alabama,
[INFO] [stdout] 32 |     Alaska,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Penny`, `Nickel`, and `Dime` are never constructed
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | enum Coin {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 37 |     Penny,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 38 |     Nickel,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 39 |     Dime,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `red`, `blue`, and `green` are never read
[INFO] [stdout]   --> src/main.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     ChangeColor{red:i32,blue:i32,green:i32},
[INFO] [stdout]    |     ----------- ^^^     ^^^^     ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `route` is never used
[INFO] [stdout]    --> src/main.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn route(ip_kind: IpAddrKind){
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit` and `Move` are never constructed
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum Message{
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 16 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     Move{x:i32,y:i32},
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `enumTutor` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `enum_tutor`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Alaska` is never constructed
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum UsState {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 31 |     Alabama,
[INFO] [stdout] 32 |     Alaska,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Penny`, `Nickel`, and `Dime` are never constructed
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | enum Coin {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 37 |     Penny,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 38 |     Nickel,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 39 |     Dime,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `route` is never used
[INFO] [stdout]    --> src/main.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn route(ip_kind: IpAddrKind){
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `enumTutor` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `enum_tutor`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "277a59d78b586d98ac52dcd8ce68e484d4f8d856f856f85babe56658a3d293e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277a59d78b586d98ac52dcd8ce68e484d4f8d856f856f85babe56658a3d293e0", kill_on_drop: false }`
[INFO] [stdout] 277a59d78b586d98ac52dcd8ce68e484d4f8d856f856f85babe56658a3d293e0
