[INFO] cloning repository https://github.com/thebinij/rust-learning-basics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thebinij/rust-learning-basics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebinij%2Frust-learning-basics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebinij%2Frust-learning-basics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c897eb2c2652020ef727ef2c50b7be28b7285bfa
[INFO] checking thebinij/rust-learning-basics against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebinij%2Frust-learning-basics" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thebinij/rust-learning-basics
[INFO] finished tweaking git repo https://github.com/thebinij/rust-learning-basics
[INFO] tweaked toml for git repo https://github.com/thebinij/rust-learning-basics written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thebinij/rust-learning-basics on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/thebinij/rust-learning-basics 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getopts v0.2.23
[INFO] [stderr]   Downloaded atomic v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54526b125c44a3aeecada863755bed38cc1a3a8a54ba196e78b61f2408def529
[INFO] running `Command { std: "docker" "start" "-a" "54526b125c44a3aeecada863755bed38cc1a3a8a54ba196e78b61f2408def529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54526b125c44a3aeecada863755bed38cc1a3a8a54ba196e78b61f2408def529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54526b125c44a3aeecada863755bed38cc1a3a8a54ba196e78b61f2408def529", kill_on_drop: false }`
[INFO] [stdout] 54526b125c44a3aeecada863755bed38cc1a3a8a54ba196e78b61f2408def529
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cecf96f102f717ccc8bc2d2b3bc38a43ff9b046c3dc4b3c378bdf79cc944152d
[INFO] running `Command { std: "docker" "start" "-a" "cecf96f102f717ccc8bc2d2b3bc38a43ff9b046c3dc4b3c378bdf79cc944152d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]    Compiling cookie v0.18.1
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling deranged v0.4.0
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]    Compiling uncased v0.9.10
[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling bitflags v2.9.3
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling inlinable_string v0.1.15
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking winnow v0.7.13
[INFO] [stderr]     Checking toml_write v0.1.2
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling indexmap v2.11.0
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]    Compiling stable-pattern v0.1.0
[INFO] [stderr]    Compiling multer v3.1.0
[INFO] [stderr]    Compiling figment v0.10.19
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking anstyle-query v1.1.4
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling state v0.6.0
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]    Compiling rocket v0.5.1
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling pulldown-cmark v0.13.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]     Checking unicode-width v0.2.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking clap_builder v4.5.46
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]     Checking binascii v0.1.4
[INFO] [stderr]     Checking pulldown-cmark-escape v0.11.0
[INFO] [stderr]     Checking getopts v0.2.23
[INFO] [stderr]     Checking tempfile v3.21.0
[INFO] [stderr]    Compiling devise_core v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling pear_codegen v0.2.9
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling clap_derive v4.5.45
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling maud_macros v0.27.0
[INFO] [stderr]    Compiling devise_codegen v0.4.2
[INFO] [stderr]    Compiling hyper v0.14.32
[INFO] [stderr]    Compiling devise v0.4.2
[INFO] [stderr]     Checking async-stream v0.3.6
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling pear v0.2.9
[INFO] [stderr]     Checking maud v0.27.0
[INFO] [stderr]     Checking clap v4.5.46
[INFO] [stderr]    Compiling rocket_http v0.5.1
[INFO] [stderr]    Compiling rocket_codegen v0.5.1
[INFO] [stderr]     Checking tokio-util v0.7.16
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking toml_datetime v0.6.11
[INFO] [stderr]     Checking serde_spanned v0.6.9
[INFO] [stderr]     Checking ubyte v0.10.4
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking h2 v0.3.27
[INFO] [stderr]     Checking toml_edit v0.22.27
[INFO] [stderr]     Checking toml v0.8.23
[INFO] [stderr]     Checking rust-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `v_i32`
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let v_i32 = vec![1,2,3,4];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_v_i32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_f64`
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let v_f64 = vec![1_f64, 2_f64,3_f64];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_v_f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_i64`
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let v_i64: Vec<i64> = vec![100,200,300];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_v_i64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_i32`
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let v_i32 = vec![1,2,3,4];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_v_i32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_f64`
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let v_f64 = vec![1_f64, 2_f64,3_f64];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_v_f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_i64`
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let v_i64: Vec<i64> = vec![100,200,300];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_v_i64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_of_elements` is never used
[INFO] [stdout]  --> src/advanced_rust/generics_traits.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum_of_elements(nums : &[i32]) -> i32{
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_of_elements_generic` is never used
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn sum_of_elements_generic<T: std::ops::AddAssign + Copy>(nums : &[T]) -> T{
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn main(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Sellable` is never used
[INFO] [stdout]  --> src/advanced_rust/polymorphism.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Sellable {
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sword` is never constructed
[INFO] [stdout]  --> src/advanced_rust/polymorphism.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Sword {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shield` is never constructed
[INFO] [stdout]   --> src/advanced_rust/polymorphism.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Shield {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vendor_text_static` is never used
[INFO] [stdout]   --> src/advanced_rust/polymorphism.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn vendor_text_static<T: Sellable>(item: &T) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vendor_text_dyanmic` is never used
[INFO] [stdout]   --> src/advanced_rust/polymorphism.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn vendor_text_dyanmic(item: &dyn Sellable) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/advanced_rust/polymorphism.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_of_elements` is never used
[INFO] [stdout]  --> src/advanced_rust/generics_traits.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum_of_elements(nums : &[i32]) -> i32{
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_of_elements_generic` is never used
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn sum_of_elements_generic<T: std::ops::AddAssign + Copy>(nums : &[T]) -> T{
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/advanced_rust/generics_traits.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn main(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Sellable` is never used
[INFO] [stdout]  --> src/advanced_rust/polymorphism.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Sellable {
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sword` is never constructed
[INFO] [stdout]  --> src/advanced_rust/polymorphism.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Sword {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shield` is never constructed
[INFO] [stdout]   --> src/advanced_rust/polymorphism.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Shield {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vendor_text_static` is never used
[INFO] [stdout]   --> src/advanced_rust/polymorphism.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn vendor_text_static<T: Sellable>(item: &T) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vendor_text_dyanmic` is never used
[INFO] [stdout]   --> src/advanced_rust/polymorphism.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn vendor_text_dyanmic(item: &dyn Sellable) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/advanced_rust/polymorphism.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.22s
[INFO] running `Command { std: "docker" "inspect" "cecf96f102f717ccc8bc2d2b3bc38a43ff9b046c3dc4b3c378bdf79cc944152d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cecf96f102f717ccc8bc2d2b3bc38a43ff9b046c3dc4b3c378bdf79cc944152d", kill_on_drop: false }`
[INFO] [stdout] cecf96f102f717ccc8bc2d2b3bc38a43ff9b046c3dc4b3c378bdf79cc944152d
