[INFO] cloning repository https://github.com/ibrahmad18/rust_examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ibrahmad18/rust_examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fibrahmad18%2Frust_examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fibrahmad18%2Frust_examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d15180999b8122820daf5ecf8e11a12fb2a86c50
[INFO] checking ibrahmad18/rust_examples against try#f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208 for pr-139419
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fibrahmad18%2Frust_examples" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ibrahmad18/rust_examples on toolchain f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ibrahmad18/rust_examples
[INFO] finished tweaking git repo https://github.com/ibrahmad18/rust_examples
[INFO] tweaked toml for git repo https://github.com/ibrahmad18/rust_examples written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ibrahmad18/rust_examples 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" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2202cc2c13800d8ccf6d9c32256408d20482483352fd905dda511c8d83f6d227
[INFO] running `Command { std: "docker" "start" "-a" "2202cc2c13800d8ccf6d9c32256408d20482483352fd905dda511c8d83f6d227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2202cc2c13800d8ccf6d9c32256408d20482483352fd905dda511c8d83f6d227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2202cc2c13800d8ccf6d9c32256408d20482483352fd905dda511c8d83f6d227", kill_on_drop: false }`
[INFO] [stdout] 2202cc2c13800d8ccf6d9c32256408d20482483352fd905dda511c8d83f6d227
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0954375b14737543bdfa63cc588b22763b3db35a4ed3559f03aeb9f429a24b51
[INFO] running `Command { std: "docker" "start" "-a" "0954375b14737543bdfa63cc588b22763b3db35a4ed3559f03aeb9f429a24b51", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/calc.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |               /// validate a number before send it to return of method
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 49 | /             match input.trim().parse::<f64>(){
[INFO] [stdout] 50 | |                 Ok(num) => return num,
[INFO] [stdout] 51 | |                 Err(_)  => println!("Invalid input, enter a valid number"),
[INFO] [stdout] 52 | |             }
[INFO] [stdout]    | |_____________- rustdoc does not generate documentation for expressions
[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]   --> src/calc.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |               /// validate a number before send it to return of method
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 49 | /             match input.trim().parse::<f64>(){
[INFO] [stdout] 50 | |                 Ok(num) => return num,
[INFO] [stdout] 51 | |                 Err(_)  => println!("Invalid input, enter a valid number"),
[INFO] [stdout] 52 | |             }
[INFO] [stdout]    | |_____________- rustdoc does not generate documentation for expressions
[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: function `start_app` is never used
[INFO] [stdout]  --> src/hello_user.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn start_app() {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start_app` is never used
[INFO] [stdout]  --> src/hello_user.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn start_app() {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "0954375b14737543bdfa63cc588b22763b3db35a4ed3559f03aeb9f429a24b51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0954375b14737543bdfa63cc588b22763b3db35a4ed3559f03aeb9f429a24b51", kill_on_drop: false }`
[INFO] [stdout] 0954375b14737543bdfa63cc588b22763b3db35a4ed3559f03aeb9f429a24b51