[INFO] cloning repository https://github.com/5255b64/tintin_rust_lesson_3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/5255b64/tintin_rust_lesson_3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5255b64%2Ftintin_rust_lesson_3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5255b64%2Ftintin_rust_lesson_3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7c2ba8490311b558129be1400706452b97e680e
[INFO] checking 5255b64/tintin_rust_lesson_3 against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F5255b64%2Ftintin_rust_lesson_3" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/5255b64/tintin_rust_lesson_3
[INFO] finished tweaking git repo https://github.com/5255b64/tintin_rust_lesson_3
[INFO] tweaked toml for git repo https://github.com/5255b64/tintin_rust_lesson_3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/5255b64/tintin_rust_lesson_3 on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/5255b64/tintin_rust_lesson_3 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa2e3b0dbe429465dbd1cd47a43fce3b7db003b34a07f58bfa745b82da1ab4c0
[INFO] running `Command { std: "docker" "start" "-a" "fa2e3b0dbe429465dbd1cd47a43fce3b7db003b34a07f58bfa745b82da1ab4c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa2e3b0dbe429465dbd1cd47a43fce3b7db003b34a07f58bfa745b82da1ab4c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa2e3b0dbe429465dbd1cd47a43fce3b7db003b34a07f58bfa745b82da1ab4c0", kill_on_drop: false }`
[INFO] [stdout] fa2e3b0dbe429465dbd1cd47a43fce3b7db003b34a07f58bfa745b82da1ab4c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc27278af9e3e06d06a0a6789d46a3417027416db6159935f7363e26f4a9f89c
[INFO] running `Command { std: "docker" "start" "-a" "cc27278af9e3e06d06a0a6789d46a3417027416db6159935f7363e26f4a9f89c", kill_on_drop: false }`
[INFO] [stderr]     Checking tintin_rust_lesson_3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name`, `age`, and `gender` are never read
[INFO] [stdout]  --> src/student.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Student {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 6 |     pub id:u32,
[INFO] [stdout] 7 |     pub name:String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 8 |     pub age:u8,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 9 |     pub gender:Gender
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Student` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]  --> src/club.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Club<'a>{
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 7 |     pub id:u32,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 8 |     pub name:String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Club` 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 `id` and `name` are never read
[INFO] [stdout]  --> src/class.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Class<'a> {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 7 |     pub id:u32,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 8 |     pub name:String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Class` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]   --> src/class.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl <'a>Class<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn remove(&mut self, stu:&'a Student) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]  --> src/course.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Course<'a> {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 7 |     pub id: u32,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 8 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Course` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]   --> src/course.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'a> Course<'a> {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn remove(&mut self, stu: &'a Student) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `age`, and `gender` are never read
[INFO] [stdout]  --> src/student.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Student {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 6 |     pub id:u32,
[INFO] [stdout] 7 |     pub name:String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 8 |     pub age:u8,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 9 |     pub gender:Gender
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Student` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]  --> src/club.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Club<'a>{
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 7 |     pub id:u32,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 8 |     pub name:String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Club` 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 `id` and `name` are never read
[INFO] [stdout]  --> src/class.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Class<'a> {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 7 |     pub id:u32,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 8 |     pub name:String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Class` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]   --> src/class.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl <'a>Class<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn remove(&mut self, stu:&'a Student) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]  --> src/course.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Course<'a> {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 7 |     pub id: u32,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 8 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Course` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]   --> src/course.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'a> Course<'a> {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn remove(&mut self, stu: &'a Student) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "cc27278af9e3e06d06a0a6789d46a3417027416db6159935f7363e26f4a9f89c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc27278af9e3e06d06a0a6789d46a3417027416db6159935f7363e26f4a9f89c", kill_on_drop: false }`
[INFO] [stdout] cc27278af9e3e06d06a0a6789d46a3417027416db6159935f7363e26f4a9f89c
