[INFO] cloning repository https://github.com/LinkedInLearning/Rust-2482427
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LinkedInLearning/Rust-2482427" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLinkedInLearning%2FRust-2482427", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLinkedInLearning%2FRust-2482427'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86d90c97a50bb96a16a6d27015ebc714c54886f7
[INFO] checking LinkedInLearning/Rust-2482427 against master#507271bc119683008ec719ecee48814e8ac86c65 for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLinkedInLearning%2FRust-2482427" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/LinkedInLearning/Rust-2482427
[INFO] finished tweaking git repo https://github.com/LinkedInLearning/Rust-2482427
[INFO] tweaked toml for git repo https://github.com/LinkedInLearning/Rust-2482427 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LinkedInLearning/Rust-2482427 on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/LinkedInLearning/Rust-2482427 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" "+507271bc119683008ec719ecee48814e8ac86c65" "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] [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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 658e73aeb789ff9ac7fe899a3abcd2bee57c28c16a526e9cd7fdee3fccf14433
[INFO] running `Command { std: "docker" "start" "-a" "658e73aeb789ff9ac7fe899a3abcd2bee57c28c16a526e9cd7fdee3fccf14433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "658e73aeb789ff9ac7fe899a3abcd2bee57c28c16a526e9cd7fdee3fccf14433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "658e73aeb789ff9ac7fe899a3abcd2bee57c28c16a526e9cd7fdee3fccf14433", kill_on_drop: false }`
[INFO] [stdout] 658e73aeb789ff9ac7fe899a3abcd2bee57c28c16a526e9cd7fdee3fccf14433
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5ebe7f45cae15715a1932887a19b0f07b29eb2dec59747cb2724cc1e4c8f565
[INFO] running `Command { std: "docker" "start" "-a" "a5ebe7f45cae15715a1932887a19b0f07b29eb2dec59747cb2724cc1e4c8f565", 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 ch10_02 v0.1.0 (/opt/rustwide/workdir/ch10_02)
[INFO] [stderr]     Checking ch09_03 v0.1.0 (/opt/rustwide/workdir/ch09_03)
[INFO] [stderr]     Checking ch02_04 v0.1.0 (/opt/rustwide/workdir/ch02_04)
[INFO] [stderr]     Checking ch08_03 v0.1.0 (/opt/rustwide/workdir/ch08_03)
[INFO] [stderr]     Checking ch02_02 v0.1.0 (/opt/rustwide/workdir/ch02_02)
[INFO] [stderr]     Checking ch07_04 v0.1.0 (/opt/rustwide/workdir/ch07_04)
[INFO] [stderr]     Checking ch05_03 v0.1.0 (/opt/rustwide/workdir/ch05_03)
[INFO] [stderr]     Checking ch02_03 v0.1.0 (/opt/rustwide/workdir/ch02_03)
[INFO] [stderr]     Checking ch03_04 v0.1.0 (/opt/rustwide/workdir/ch03_04)
[INFO] [stderr]     Checking ch06_03 v0.1.0 (/opt/rustwide/workdir/ch06_03)
[INFO] [stderr]     Checking ch02_06 v0.1.0 (/opt/rustwide/workdir/ch02_06)
[INFO] [stderr]     Checking ch04_03 v0.1.0 (/opt/rustwide/workdir/ch04_03)
[INFO] [stderr]     Checking ch02_05 v0.1.0 (/opt/rustwide/workdir/ch02_05)
[INFO] [stdout] warning: unused variable: `ip_addr`
[INFO] [stdout]   --> ch05_03/src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let ip_addr = IpAddr::V4(String::from("127.0.0.1")).addr();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Sud`, `Est`, and `Ouest` are never constructed
[INFO] [stdout]  --> ch05_03/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Direction {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 3 |     Nord,
[INFO] [stdout] 4 |     Sud,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     Est,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     Ouest,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]   --> ch05_03/src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum IpAddr {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] 21 |     V4(String),
[INFO] [stdout] 22 |     V6(String),
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `creation_depuis_parametre_ref` is never used
[INFO] [stdout]   --> ch08_03/src/main.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a> StringPartage<'a> {
[INFO] [stdout]    | -------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn creation_depuis_parametre_ref(valeur_par_defaut: &'a String) -> StringPartage<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ma_str`
[INFO] [stdout]  --> ch02_02/src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let ma_str = "ma str";
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ma_str`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mon_caractere`
[INFO] [stdout]   --> ch02_02/src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mon_caractere = ma_string.chars().nth(2).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mon_caractere`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `slice` is never read
[INFO] [stdout]  --> ch02_03/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     slice = &mut tableau_bis[..];
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]   --> ch10_02/src/lib.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn sub(a: i32, b: 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: unused variable: `ma_str`
[INFO] [stdout]  --> ch02_02/src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let ma_str = "ma str";
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ma_str`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mon_caractere`
[INFO] [stdout]   --> ch02_02/src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mon_caractere = ma_string.chars().nth(2).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mon_caractere`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ch02_07 v0.1.0 (/opt/rustwide/workdir/ch02_07)
[INFO] [stderr]     Checking ch10_01 v0.1.0 (/opt/rustwide/workdir/ch10_01)
[INFO] [stdout] warning: unused import: `sous_module_2::*`
[INFO] [stdout]   --> ch09_03/src/lib.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use sous_module_2::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ma_string` and `mon_bool` are never read
[INFO] [stdout]   --> ch09_03/src/lib.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct MaStruct {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 15 |     pub(crate) ma_string: String,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 16 |     pub mon_numero: usize,
[INFO] [stdout] 17 |     mon_bool: bool,
[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 `fonction_publique_crate` is never used
[INFO] [stdout]   --> ch09_03/src/lib.rs:30:19
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub(crate) fn fonction_publique_crate() {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fonction_publique_super` is never used
[INFO] [stdout]   --> ch09_03/src/lib.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub(super) fn fonction_publique_super() {}
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sous_module_2::*`
[INFO] [stdout]   --> ch09_03/src/lib.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use sous_module_2::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ma_string` and `mon_bool` are never read
[INFO] [stdout]   --> ch09_03/src/lib.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct MaStruct {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 15 |     pub(crate) ma_string: String,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 16 |     pub mon_numero: usize,
[INFO] [stdout] 17 |     mon_bool: bool,
[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 `fonction_publique_crate` is never used
[INFO] [stdout]   --> ch09_03/src/lib.rs:30:19
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub(crate) fn fonction_publique_crate() {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fonction_publique_super` is never used
[INFO] [stdout]   --> ch09_03/src/lib.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub(super) fn fonction_publique_super() {}
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mon_tuple`
[INFO] [stdout]  --> ch02_05/src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mon_tuple = (1, 3);
[INFO] [stdout]   |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mon_tuple`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tuple_un_element`
[INFO] [stdout]  --> ch02_05/src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let tuple_un_element = (8,);
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple_un_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ch03_01 v0.1.0 (/opt/rustwide/workdir/ch03_01)
[INFO] [stdout] warning: unused variable: `tuple_vide`
[INFO] [stdout]  --> ch02_05/src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let tuple_vide = ();
[INFO] [stdout]   |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple_vide`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `somme`
[INFO] [stdout]  --> ch02_07/src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let somme = additionne(5, 20);
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_somme`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `division`
[INFO] [stdout]  --> ch02_07/src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let division = divise(5, 0);
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_division`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ch02_01 v0.1.0 (/opt/rustwide/workdir/ch02_01)
[INFO] [stdout] warning: unused variable: `somme`
[INFO] [stdout]  --> ch02_07/src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let somme = additionne(5, 20);
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_somme`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `division`
[INFO] [stdout]  --> ch02_07/src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let division = divise(5, 0);
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_division`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ma_valeur_virgule`
[INFO] [stdout]  --> ch02_01/src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let ma_valeur_virgule = 0.3;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ma_valeur_virgule`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `petite_donnee`
[INFO] [stdout]  --> ch02_01/src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let petite_donnee: i8 = 55;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_petite_donnee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `somme`
[INFO] [stdout]  --> ch02_01/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let somme = valeur_entiere + mon_usize;
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_somme`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `creation_depuis_parametre_ref` is never used
[INFO] [stdout]   --> ch08_03/src/main.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a> StringPartage<'a> {
[INFO] [stdout]    | -------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn creation_depuis_parametre_ref(valeur_par_defaut: &'a String) -> StringPartage<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Thread`
[INFO] [stdout]  --> ch03_01/src/main.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 |     thread::{self, sleep, Thread},
[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 variable: `ip_addr`
[INFO] [stdout]   --> ch05_03/src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let ip_addr = IpAddr::V4(String::from("127.0.0.1")).addr();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Sud`, `Est`, and `Ouest` are never constructed
[INFO] [stdout]  --> ch05_03/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Direction {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 3 |     Nord,
[INFO] [stdout] 4 |     Sud,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     Est,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     Ouest,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]   --> ch05_03/src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum IpAddr {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] 21 |     V4(String),
[INFO] [stdout] 22 |     V6(String),
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `slice` is never read
[INFO] [stdout]  --> ch02_03/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     slice = &mut tableau_bis[..];
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> ch03_01/src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     thread_1.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let _ = thread_1.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Thread`
[INFO] [stdout]  --> ch03_01/src/main.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 |     thread::{self, sleep, Thread},
[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 variable: `mon_tuple`
[INFO] [stdout]  --> ch02_05/src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mon_tuple = (1, 3);
[INFO] [stdout]   |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mon_tuple`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tuple_un_element`
[INFO] [stdout]  --> ch02_05/src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let tuple_un_element = (8,);
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple_un_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tuple_vide`
[INFO] [stdout]  --> ch02_05/src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let tuple_vide = ();
[INFO] [stdout]   |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple_vide`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ma_valeur_virgule`
[INFO] [stdout]  --> ch02_01/src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let ma_valeur_virgule = 0.3;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ma_valeur_virgule`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `petite_donnee`
[INFO] [stdout]  --> ch02_01/src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let petite_donnee: i8 = 55;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_petite_donnee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `somme`
[INFO] [stdout]  --> ch02_01/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let somme = valeur_entiere + mon_usize;
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_somme`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> ch03_01/src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     thread_1.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let _ = thread_1.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "a5ebe7f45cae15715a1932887a19b0f07b29eb2dec59747cb2724cc1e4c8f565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ebe7f45cae15715a1932887a19b0f07b29eb2dec59747cb2724cc1e4c8f565", kill_on_drop: false }`
[INFO] [stdout] a5ebe7f45cae15715a1932887a19b0f07b29eb2dec59747cb2724cc1e4c8f565
