[INFO] cloning repository https://github.com/Abhishek8394/rust-tut-unsafe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Abhishek8394/rust-tut-unsafe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-unsafe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-unsafe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f8cd4a9670fe9d7bd10f7281cfd24e05b872eb0
[INFO] checking Abhishek8394/rust-tut-unsafe against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-unsafe" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Abhishek8394/rust-tut-unsafe
[INFO] finished tweaking git repo https://github.com/Abhishek8394/rust-tut-unsafe
[INFO] tweaked toml for git repo https://github.com/Abhishek8394/rust-tut-unsafe written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Abhishek8394/rust-tut-unsafe on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Abhishek8394/rust-tut-unsafe 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" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.33
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d10dffbefa0b22aba3097a378fa6a5e97fa40781912e3958d30fb39aa84f337
[INFO] running `Command { std: "docker" "start" "-a" "9d10dffbefa0b22aba3097a378fa6a5e97fa40781912e3958d30fb39aa84f337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d10dffbefa0b22aba3097a378fa6a5e97fa40781912e3958d30fb39aa84f337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d10dffbefa0b22aba3097a378fa6a5e97fa40781912e3958d30fb39aa84f337", kill_on_drop: false }`
[INFO] [stdout] 9d10dffbefa0b22aba3097a378fa6a5e97fa40781912e3958d30fb39aa84f337
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60c633639e0942d910d55153c5aaab747aae3b0b8796fbd89ad90904e5e0677e
[INFO] running `Command { std: "docker" "start" "-a" "60c633639e0942d910d55153c5aaab747aae3b0b8796fbd89ad90904e5e0677e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking my_macros v0.1.0 (/opt/rustwide/workdir/my_macros)
[INFO] [stderr]     Checking unsafe_tut_core v0.1.0 (/opt/rustwide/workdir/core)
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking hello_macro_derive v0.1.0 (/opt/rustwide/workdir/my_macros/hello_macro_derive)
[INFO] [stderr]     Checking unsafe_tut_app v0.1.0 (/opt/rustwide/workdir/app)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> app/src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / /// call code defined in C language!
[INFO] [stdout] 11 | | /// This is a FFI - Foreign function interface
[INFO] [stdout]    | |______________________________________________^
[INFO] [stdout] 12 | / extern "C" {
[INFO] [stdout] 13 | |     fn abs(input: i32) -> i32;
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> app/src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / /// call code defined in C language!
[INFO] [stdout] 11 | | /// This is a FFI - Foreign function interface
[INFO] [stdout]    | |______________________________________________^
[INFO] [stdout] 12 | / extern "C" {
[INFO] [stdout] 13 | |     fn abs(input: i32) -> i32;
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mm`
[INFO] [stdout]    --> app/src/main.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let mm = Millimeters(5);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_mm`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> app/src/main.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 221 |         let m = Meters(10);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mm`
[INFO] [stdout]    --> app/src/main.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let mm = Millimeters(5);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_mm`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> app/src/main.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 221 |         let m = Meters(10);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> app/src/main.rs:172:34
[INFO] [stdout]     |
[INFO] [stdout] 172 |             fn foobar<T: ?Sized>(s: &T){
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `list_of_strings__lambdaOrFnTrait` should have a snake case name
[INFO] [stdout]    --> app/src/main.rs:188:17
[INFO] [stdout]     |
[INFO] [stdout] 188 |             let list_of_strings__lambdaOrFnTrait : Vec<String> = list_of_numbers
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `list_of_strings_lambda_or_fn_trait`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `list_of_strings__fnPointer` should have a snake case name
[INFO] [stdout]    --> app/src/main.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |             let list_of_strings__fnPointer : Vec<String> = list_of_numbers
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `list_of_strings_fn_pointer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> app/src/main.rs:172:34
[INFO] [stdout]     |
[INFO] [stdout] 172 |             fn foobar<T: ?Sized>(s: &T){
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foobar` is never used
[INFO] [stdout]    --> app/src/main.rs:172:16
[INFO] [stdout]     |
[INFO] [stdout] 172 |             fn foobar<T: ?Sized>(s: &T){
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> app/src/main.rs:198:23
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 Value(u32),
[INFO] [stdout]     |                 ----- ^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 198 -                 Value(u32),
[INFO] [stdout] 198 +                 Value(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Stop` is never constructed
[INFO] [stdout]    --> app/src/main.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 197 |             enum Status{
[INFO] [stdout]     |                  ------ variant in this enum
[INFO] [stdout] 198 |                 Value(u32),
[INFO] [stdout] 199 |                 Stop
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `list_of_strings__lambdaOrFnTrait` should have a snake case name
[INFO] [stdout]    --> app/src/main.rs:188:17
[INFO] [stdout]     |
[INFO] [stdout] 188 |             let list_of_strings__lambdaOrFnTrait : Vec<String> = list_of_numbers
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `list_of_strings_lambda_or_fn_trait`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `list_of_strings__fnPointer` should have a snake case name
[INFO] [stdout]    --> app/src/main.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |             let list_of_strings__fnPointer : Vec<String> = list_of_numbers
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `list_of_strings_fn_pointer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.49s
[INFO] running `Command { std: "docker" "inspect" "60c633639e0942d910d55153c5aaab747aae3b0b8796fbd89ad90904e5e0677e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60c633639e0942d910d55153c5aaab747aae3b0b8796fbd89ad90904e5e0677e", kill_on_drop: false }`
[INFO] [stdout] 60c633639e0942d910d55153c5aaab747aae3b0b8796fbd89ad90904e5e0677e
