[INFO] cloning repository https://github.com/AnasSabbag127/rust_by_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnasSabbag127/rust_by_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnasSabbag127%2Frust_by_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnasSabbag127%2Frust_by_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bec342ad80148ff0984186cb58a5dc035294105
[INFO] testing AnasSabbag127/rust_by_example against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnasSabbag127%2Frust_by_example" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AnasSabbag127/rust_by_example
[INFO] finished tweaking git repo https://github.com/AnasSabbag127/rust_by_example
[INFO] tweaked toml for git repo https://github.com/AnasSabbag127/rust_by_example written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AnasSabbag127/rust_by_example on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AnasSabbag127/rust_by_example 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7c526df3901d3ba1135cbdf65905e62d9a3cc8ff510fa01e9694eaab27a68d0
[INFO] running `Command { std: "docker" "start" "-a" "a7c526df3901d3ba1135cbdf65905e62d9a3cc8ff510fa01e9694eaab27a68d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7c526df3901d3ba1135cbdf65905e62d9a3cc8ff510fa01e9694eaab27a68d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c526df3901d3ba1135cbdf65905e62d9a3cc8ff510fa01e9694eaab27a68d0", kill_on_drop: false }`
[INFO] [stdout] a7c526df3901d3ba1135cbdf65905e62d9a3cc8ff510fa01e9694eaab27a68d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ea12f5f4c2fa7ab0f300d9bd9a04f1f2d3330ebb8e2581b4604bab354f48970
[INFO] running `Command { std: "docker" "start" "-a" "9ea12f5f4c2fa7ab0f300d9bd9a04f1f2d3330ebb8e2581b4604bab354f48970", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_by_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/topics_six/loops.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         'inner: loop {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/topics_six/loops.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |             break 'outer;
[INFO] [stdout]    |             ------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 48 |           println!("This point will never be reached");   
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/matches/destructing.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         _ => {println!("not match with anyone ");},
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/matches/destructing.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         Color::Red   => println!("The color is Red!"),
[INFO] [stdout]    |         ---------- matches some of the same values
[INFO] [stdout] 86 |         Color::Blue  => println!("The color is Blue!"),
[INFO] [stdout]    |         ----------- matches some of the same values
[INFO] [stdout] 87 |         Color::Green => println!("The color is Green!"),
[INFO] [stdout]    |         ------------ matches some of the same values
[INFO] [stdout] 88 |         Color::RGB(r, g, b) =>
[INFO] [stdout]    |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 99 |         _ => {println!("not match with anyone ");},
[INFO] [stdout]    |         ^ ...and 4 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/matches/guards.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         _  => { println!(" default ");} 
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/matches/guards.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Temp::Celc(t)  => { println!("NOT too hot in cels");},//its else condition
[INFO] [stdout]    |         ------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 15 |         Temp::Fahren(t) => {println!("not too hot in fahren ");},
[INFO] [stdout]    |         --------------- matches some of the same values
[INFO] [stdout] 16 |         _  => { println!(" default ");} 
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/matches/guards.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Temp::Celc(t)  => { println!("NOT too hot in cels");},//its else condition
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/matches/guards.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Temp::Fahren(t) => {println!("not too hot in fahren ");},
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/matches/bindings.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         n => { println!("above adult "); },
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/topics/debug_format.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Structure(f32);
[INFO] [stdout]   |        --------- ^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Structure` 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: field `0` is never read
[INFO] [stdout]  --> src/topics/debug_format.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Deep(Structure);
[INFO] [stdout]   |        ---- ^^^^^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]  --> src/structure/struct_type.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Tuple(i32,f32,char,String);
[INFO] [stdout]   |        ----- ^^^ ^^^ ^^^^ ^^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `Tuple` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/matches/destructing.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     enum Color {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 66 |         // These 3 are specified solely by their name.
[INFO] [stdout] 67 |         Red,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 68 |         Blue,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 69 |         Green,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |         HSV(u32, u32, u32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 73 |         HSL(u32, u32, u32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 74 |         CMY(u32, u32, u32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 75 |         CMYK(u32, u32, u32, u32),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Fahren` is never constructed
[INFO] [stdout]  --> src/matches/guards.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enum Temp{
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] 4 |         Celc(i32),
[INFO] [stdout] 5 |         Fahren(i32),
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "9ea12f5f4c2fa7ab0f300d9bd9a04f1f2d3330ebb8e2581b4604bab354f48970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ea12f5f4c2fa7ab0f300d9bd9a04f1f2d3330ebb8e2581b4604bab354f48970", kill_on_drop: false }`
[INFO] [stdout] 9ea12f5f4c2fa7ab0f300d9bd9a04f1f2d3330ebb8e2581b4604bab354f48970
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e63a87b9661f373935df865f92fefb9a81cfc61140e600ee3bfddde82888211b
[INFO] running `Command { std: "docker" "start" "-a" "e63a87b9661f373935df865f92fefb9a81cfc61140e600ee3bfddde82888211b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_by_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/topics_six/loops.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         'inner: loop {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/topics_six/loops.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |             break 'outer;
[INFO] [stdout]    |             ------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 48 |           println!("This point will never be reached");   
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/matches/destructing.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         _ => {println!("not match with anyone ");},
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/matches/destructing.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         Color::Red   => println!("The color is Red!"),
[INFO] [stdout]    |         ---------- matches some of the same values
[INFO] [stdout] 86 |         Color::Blue  => println!("The color is Blue!"),
[INFO] [stdout]    |         ----------- matches some of the same values
[INFO] [stdout] 87 |         Color::Green => println!("The color is Green!"),
[INFO] [stdout]    |         ------------ matches some of the same values
[INFO] [stdout] 88 |         Color::RGB(r, g, b) =>
[INFO] [stdout]    |         ------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 99 |         _ => {println!("not match with anyone ");},
[INFO] [stdout]    |         ^ ...and 4 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/matches/guards.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         _  => { println!(" default ");} 
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/matches/guards.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Temp::Celc(t)  => { println!("NOT too hot in cels");},//its else condition
[INFO] [stdout]    |         ------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 15 |         Temp::Fahren(t) => {println!("not too hot in fahren ");},
[INFO] [stdout]    |         --------------- matches some of the same values
[INFO] [stdout] 16 |         _  => { println!(" default ");} 
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/matches/guards.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Temp::Celc(t)  => { println!("NOT too hot in cels");},//its else condition
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/matches/guards.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Temp::Fahren(t) => {println!("not too hot in fahren ");},
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/matches/bindings.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         n => { println!("above adult "); },
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/topics/debug_format.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Structure(f32);
[INFO] [stdout]   |        --------- ^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Structure` 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: field `0` is never read
[INFO] [stdout]  --> src/topics/debug_format.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Deep(Structure);
[INFO] [stdout]   |        ---- ^^^^^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]  --> src/structure/struct_type.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Tuple(i32,f32,char,String);
[INFO] [stdout]   |        ----- ^^^ ^^^ ^^^^ ^^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `Tuple` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/matches/destructing.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     enum Color {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 66 |         // These 3 are specified solely by their name.
[INFO] [stdout] 67 |         Red,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 68 |         Blue,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 69 |         Green,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |         HSV(u32, u32, u32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 73 |         HSL(u32, u32, u32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 74 |         CMY(u32, u32, u32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 75 |         CMYK(u32, u32, u32, u32),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Fahren` is never constructed
[INFO] [stdout]  --> src/matches/guards.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enum Temp{
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] 4 |         Celc(i32),
[INFO] [stdout] 5 |         Fahren(i32),
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "e63a87b9661f373935df865f92fefb9a81cfc61140e600ee3bfddde82888211b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e63a87b9661f373935df865f92fefb9a81cfc61140e600ee3bfddde82888211b", kill_on_drop: false }`
[INFO] [stdout] e63a87b9661f373935df865f92fefb9a81cfc61140e600ee3bfddde82888211b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2595aa1e1f22d8181be48eb028f7e0b357d3c8c2e02b9e7fa82faeb6a945cb63
[INFO] running `Command { std: "docker" "start" "-a" "2595aa1e1f22d8181be48eb028f7e0b357d3c8c2e02b9e7fa82faeb6a945cb63", kill_on_drop: false }`
[INFO] [stderr] warning: unused label
[INFO] [stderr]   --> src/topics_six/loops.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         'inner: loop {
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/topics_six/loops.rs:48:11
[INFO] [stderr]    |
[INFO] [stderr] 45 |             break 'outer;
[INFO] [stderr]    |             ------------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 48 |           println!("This point will never be reached");   
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/matches/destructing.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         _ => {println!("not match with anyone ");},
[INFO] [stderr]    |         ^ no value can reach this
[INFO] [stderr]    |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]   --> src/matches/destructing.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         Color::Red   => println!("The color is Red!"),
[INFO] [stderr]    |         ---------- matches some of the same values
[INFO] [stderr] 86 |         Color::Blue  => println!("The color is Blue!"),
[INFO] [stderr]    |         ----------- matches some of the same values
[INFO] [stderr] 87 |         Color::Green => println!("The color is Green!"),
[INFO] [stderr]    |         ------------ matches some of the same values
[INFO] [stderr] 88 |         Color::RGB(r, g, b) =>
[INFO] [stderr]    |         ------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 99 |         _ => {println!("not match with anyone ");},
[INFO] [stderr]    |         ^ ...and 4 other patterns collectively make this unreachable
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/matches/guards.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |         _  => { println!(" default ");} 
[INFO] [stderr]    |         ^ no value can reach this
[INFO] [stderr]    |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]   --> src/matches/guards.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         Temp::Celc(t)  => { println!("NOT too hot in cels");},//its else condition
[INFO] [stderr]    |         ------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 15 |         Temp::Fahren(t) => {println!("not too hot in fahren ");},
[INFO] [stderr]    |         --------------- matches some of the same values
[INFO] [stderr] 16 |         _  => { println!(" default ");} 
[INFO] [stderr]    |         ^ collectively making this unreachable
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/matches/guards.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |         Temp::Celc(t)  => { println!("NOT too hot in cels");},//its else condition
[INFO] [stderr]    |                    ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/matches/guards.rs:15:22
[INFO] [stderr]    |
[INFO] [stderr] 15 |         Temp::Fahren(t) => {println!("not too hot in fahren ");},
[INFO] [stderr]    |                      ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/matches/bindings.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         n => { println!("above adult "); },
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/topics/debug_format.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Structure(f32);
[INFO] [stderr]   |        --------- ^^^
[INFO] [stderr]   |        |
[INFO] [stderr]   |        field in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing this field
[INFO] [stderr]   = note: `Structure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/topics/debug_format.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Deep(Structure);
[INFO] [stderr]   |        ---- ^^^^^^^^^
[INFO] [stderr]   |        |
[INFO] [stderr]   |        field in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing this field
[INFO] [stderr]   = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stderr]  --> src/structure/struct_type.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Tuple(i32,f32,char,String);
[INFO] [stderr]   |        ----- ^^^ ^^^ ^^^^ ^^^^^^
[INFO] [stderr]   |        |
[INFO] [stderr]   |        fields in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing these fields
[INFO] [stderr]   = note: `Tuple` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/matches/destructing.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     enum Color {
[INFO] [stderr]    |          ----- variants in this enum
[INFO] [stderr] 66 |         // These 3 are specified solely by their name.
[INFO] [stderr] 67 |         Red,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 68 |         Blue,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 69 |         Green,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 72 |         HSV(u32, u32, u32),
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 73 |         HSL(u32, u32, u32),
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 74 |         CMY(u32, u32, u32),
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 75 |         CMYK(u32, u32, u32, u32),
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Fahren` is never constructed
[INFO] [stderr]  --> src/matches/guards.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     enum Temp{
[INFO] [stderr]   |          ---- variant in this enum
[INFO] [stderr] 4 |         Celc(i32),
[INFO] [stderr] 5 |         Fahren(i32),
[INFO] [stderr]   |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_by_example` (bin "rust_by_example" test) generated 12 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_by_example-b27eb75cfff8d598)
[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" "2595aa1e1f22d8181be48eb028f7e0b357d3c8c2e02b9e7fa82faeb6a945cb63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2595aa1e1f22d8181be48eb028f7e0b357d3c8c2e02b9e7fa82faeb6a945cb63", kill_on_drop: false }`
[INFO] [stdout] 2595aa1e1f22d8181be48eb028f7e0b357d3c8c2e02b9e7fa82faeb6a945cb63
