[INFO] cloning repository https://github.com/0x00kh/rust-course
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0x00kh/rust-course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x00kh%2Frust-course", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x00kh%2Frust-course'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 415077fda2d82f954c3c06006b5be3e486f1b8fa
[INFO] checking 0x00kh/rust-course against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x00kh%2Frust-course" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0x00kh/rust-course
[INFO] finished tweaking git repo https://github.com/0x00kh/rust-course
[INFO] tweaked toml for git repo https://github.com/0x00kh/rust-course written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0x00kh/rust-course on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0x00kh/rust-course 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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "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]   |
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24885369441a71fcc398a8ca699db820f32ddc98a7baf2833274bc083321c13c
[INFO] running `Command { std: "docker" "start" "-a" "24885369441a71fcc398a8ca699db820f32ddc98a7baf2833274bc083321c13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24885369441a71fcc398a8ca699db820f32ddc98a7baf2833274bc083321c13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24885369441a71fcc398a8ca699db820f32ddc98a7baf2833274bc083321c13c", kill_on_drop: false }`
[INFO] [stdout] 24885369441a71fcc398a8ca699db820f32ddc98a7baf2833274bc083321c13c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f38e84933b0160bd2f2db9b49757906d8faa3245e698e5680cc6e2a7ccc7229
[INFO] running `Command { std: "docker" "start" "-a" "7f38e84933b0160bd2f2db9b49757906d8faa3245e698e5680cc6e2a7ccc7229", 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]   |
[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 lesson3 v0.1.0 (/opt/rustwide/workdir/lesson3)
[INFO] [stderr]     Checking lesson1 v0.1.0 (/opt/rustwide/workdir/lesson1)
[INFO] [stderr]     Checking lesson4 v0.1.0 (/opt/rustwide/workdir/lesson4)
[INFO] [stderr]     Checking lesson2 v0.1.0 (/opt/rustwide/workdir/lesson2)
[INFO] [stderr]     Checking lesson5 v0.1.0 (/opt/rustwide/workdir/lesson5)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> lesson3/src/course.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> lesson3/src/course.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> lesson3/src/class.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Class {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 6 |     pub id: u32,
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Class` has derived impls for the traits `Clone` and `Debug`, but these are 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: methods `del_class` and `update_class` are never used
[INFO] [stdout]   --> lesson3/src/class.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl DbClass {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn del_class(&mut self, id: u32) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn update_class(&mut self, class: Class) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> lesson3/src/club.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Club {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 6 |     pub id: u32,
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Club` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `del_club` and `update_club` are never used
[INFO] [stdout]   --> lesson3/src/club.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl DbClub {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn del_club(&mut self, id: u32) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn update_club(&mut self, club: Club) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `code`, and `class_id` are never read
[INFO] [stdout]  --> lesson3/src/course.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Course {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 6 |     id: u32,
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     code: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     class_id: u32,
[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: methods `del_course` and `update_course` are never used
[INFO] [stdout]   --> lesson3/src/course.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl DbCourse {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn del_course(&mut self, id: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn update_course(&mut self, course: Course) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> lesson3/src/student.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Student {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 6 |     pub id: u32,
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Student` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `del_student` and `update_student` are never used
[INFO] [stdout]   --> lesson3/src/student.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl DbStudent {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn del_student(&mut self, id: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn update_student(&mut self, student: Student) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> lesson3/src/class.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Class {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 6 |     pub id: u32,
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Class` has derived impls for the traits `Clone` and `Debug`, but these are 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: methods `del_class` and `update_class` are never used
[INFO] [stdout]   --> lesson3/src/class.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl DbClass {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn del_class(&mut self, id: u32) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn update_class(&mut self, class: Class) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> lesson3/src/club.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Club {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 6 |     pub id: u32,
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Club` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `del_club` and `update_club` are never used
[INFO] [stdout]   --> lesson3/src/club.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl DbClub {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn del_club(&mut self, id: u32) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn update_club(&mut self, club: Club) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `code`, and `class_id` are never read
[INFO] [stdout]  --> lesson3/src/course.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Course {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 6 |     id: u32,
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     code: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     class_id: u32,
[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: methods `del_course` and `update_course` are never used
[INFO] [stdout]   --> lesson3/src/course.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl DbCourse {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn del_course(&mut self, id: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn update_course(&mut self, course: Course) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> lesson3/src/student.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Student {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 6 |     pub id: u32,
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Student` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `del_student` and `update_student` are never used
[INFO] [stdout]   --> lesson3/src/student.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl DbStudent {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn del_student(&mut self, id: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn update_student(&mut self, student: Student) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "7f38e84933b0160bd2f2db9b49757906d8faa3245e698e5680cc6e2a7ccc7229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f38e84933b0160bd2f2db9b49757906d8faa3245e698e5680cc6e2a7ccc7229", kill_on_drop: false }`
[INFO] [stdout] 7f38e84933b0160bd2f2db9b49757906d8faa3245e698e5680cc6e2a7ccc7229
