[INFO] cloning repository https://github.com/rayyildiz/rs-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rayyildiz/rs-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayyildiz%2Frs-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayyildiz%2Frs-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65462b617e797b18626d2f1dba9290205e152f79
[INFO] checking rayyildiz/rs-exercises against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frayyildiz%2Frs-exercises" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/rayyildiz/rs-exercises
[INFO] finished tweaking git repo https://github.com/rayyildiz/rs-exercises
[INFO] tweaked toml for git repo https://github.com/rayyildiz/rs-exercises written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rayyildiz/rs-exercises on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rayyildiz/rs-exercises 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" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c1ed79b12add98fc18cb512b0373013a75adbf354bd054e00f962d52111e13d
[INFO] running `Command { std: "docker" "start" "-a" "9c1ed79b12add98fc18cb512b0373013a75adbf354bd054e00f962d52111e13d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c1ed79b12add98fc18cb512b0373013a75adbf354bd054e00f962d52111e13d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c1ed79b12add98fc18cb512b0373013a75adbf354bd054e00f962d52111e13d", kill_on_drop: false }`
[INFO] [stdout] 9c1ed79b12add98fc18cb512b0373013a75adbf354bd054e00f962d52111e13d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9349a1d8bae95350fb5ce7b10f7b4a82720efa448a0dc257a9f1f043d871b4d3
[INFO] running `Command { std: "docker" "start" "-a" "9349a1d8bae95350fb5ce7b10f7b4a82720efa448a0dc257a9f1f043d871b4d3", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking luhn v0.1.0 (/opt/rustwide/workdir/luhn)
[INFO] [stderr]     Checking age v0.1.0 (/opt/rustwide/workdir/age)
[INFO] [stdout] warning: unused variable: `card_no`
[INFO] [stdout]  --> luhn/src/lib.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn is_valid(card_no: String) -> Result<bool, String> {
[INFO] [stdout]   |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_card_no`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `age`
[INFO] [stdout]   --> age/src/lib.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn convert_space_age(age: u16, p: Planet) -> u32 {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> age/src/lib.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn convert_space_age(age: u16, p: Planet) -> u32 {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `card_no`
[INFO] [stdout]  --> luhn/src/lib.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn is_valid(card_no: String) -> Result<bool, String> {
[INFO] [stdout]   |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_card_no`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `age`
[INFO] [stdout]   --> age/src/lib.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn convert_space_age(age: u16, p: Planet) -> u32 {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> age/src/lib.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn convert_space_age(age: u16, p: Planet) -> u32 {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "9349a1d8bae95350fb5ce7b10f7b4a82720efa448a0dc257a9f1f043d871b4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9349a1d8bae95350fb5ce7b10f7b4a82720efa448a0dc257a9f1f043d871b4d3", kill_on_drop: false }`
[INFO] [stdout] 9349a1d8bae95350fb5ce7b10f7b4a82720efa448a0dc257a9f1f043d871b4d3