[INFO] cloning repository https://github.com/jonchisko/RustLectureNotes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonchisko/RustLectureNotes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonchisko%2FRustLectureNotes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonchisko%2FRustLectureNotes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7d043cb06e5ffefdfb4fe06621e6cecaf71eadd
[INFO] checking jonchisko/RustLectureNotes against master#d8810e3e2dab96778d20dd6d746ff95465515509 for pr-137045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonchisko%2FRustLectureNotes" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonchisko/RustLectureNotes on toolchain d8810e3e2dab96778d20dd6d746ff95465515509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jonchisko/RustLectureNotes
[INFO] finished tweaking git repo https://github.com/jonchisko/RustLectureNotes
[INFO] tweaked toml for git repo https://github.com/jonchisko/RustLectureNotes written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jonchisko/RustLectureNotes 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" "+d8810e3e2dab96778d20dd6d746ff95465515509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebc97a7b9372ba99f51cbf2a04e8bf4a2015d8c70d05cd2109bdd28ba9025f7a
[INFO] running `Command { std: "docker" "start" "-a" "ebc97a7b9372ba99f51cbf2a04e8bf4a2015d8c70d05cd2109bdd28ba9025f7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebc97a7b9372ba99f51cbf2a04e8bf4a2015d8c70d05cd2109bdd28ba9025f7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebc97a7b9372ba99f51cbf2a04e8bf4a2015d8c70d05cd2109bdd28ba9025f7a", kill_on_drop: false }`
[INFO] [stdout] ebc97a7b9372ba99f51cbf2a04e8bf4a2015d8c70d05cd2109bdd28ba9025f7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b956c3cb80cb3aa601f64cc0f2e8d596a490ded5e9b241fc4256f8ef4fbaf4b
[INFO] running `Command { std: "docker" "start" "-a" "1b956c3cb80cb3aa601f64cc0f2e8d596a490ded5e9b241fc4256f8ef4fbaf4b", kill_on_drop: false }`
[INFO] [stderr]     Checking pointers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ownership.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn test(value: (i32, i32)) {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut authors = vec![Author {name: "Mikhail".to_string(), age: 54},
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/ownership.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut v = vec![Author2 {name: Some("Zen".to_string()), age: 19},
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut v = vec![Author2 {name: Some("Zen".to_string()), age: 19},
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/ownership.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let v = vec![Box::new("Dan".to_string()), Box::new("Hera".to_string()), Box::new("Zoe".to_string())];
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/ownership.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct Author {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 53 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 54 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Author` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/ownership.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 76 | struct Author2 {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 77 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 78 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Author2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ownership.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn test(value: (i32, i32)) {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut authors = vec![Author {name: "Mikhail".to_string(), age: 54},
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/ownership.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut v = vec![Author2 {name: Some("Zen".to_string()), age: 19},
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut v = vec![Author2 {name: Some("Zen".to_string()), age: 19},
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/ownership.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let v = vec![Box::new("Dan".to_string()), Box::new("Hera".to_string()), Box::new("Zoe".to_string())];
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/ownership.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct Author {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 53 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 54 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Author` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/ownership.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 76 | struct Author2 {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 77 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 78 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Author2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "1b956c3cb80cb3aa601f64cc0f2e8d596a490ded5e9b241fc4256f8ef4fbaf4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b956c3cb80cb3aa601f64cc0f2e8d596a490ded5e9b241fc4256f8ef4fbaf4b", kill_on_drop: false }`
[INFO] [stdout] 1b956c3cb80cb3aa601f64cc0f2e8d596a490ded5e9b241fc4256f8ef4fbaf4b