[INFO] cloning repository https://github.com/fieldlee/rust-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fieldlee/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffieldlee%2Frust-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffieldlee%2Frust-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 736dfc9ecb8518bd4940c9a1f6dd7765a38b47f2 [INFO] checking fieldlee/rust-learn against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffieldlee%2Frust-learn" "/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/fieldlee/rust-learn on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/fieldlee/rust-learn [INFO] finished tweaking git repo https://github.com/fieldlee/rust-learn [INFO] tweaked toml for git repo https://github.com/fieldlee/rust-learn written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/fieldlee/rust-learn 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" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3a822649cbf6317e305bad88c8f13b357a4032964714bda9a4adc3b848ad7ae7 [INFO] running `Command { std: "docker" "start" "-a" "3a822649cbf6317e305bad88c8f13b357a4032964714bda9a4adc3b848ad7ae7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3a822649cbf6317e305bad88c8f13b357a4032964714bda9a4adc3b848ad7ae7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a822649cbf6317e305bad88c8f13b357a4032964714bda9a4adc3b848ad7ae7", kill_on_drop: false }` [INFO] [stdout] 3a822649cbf6317e305bad88c8f13b357a4032964714bda9a4adc3b848ad7ae7 [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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d0ef930f738cd784666b64272577109abd9d27e37530a3da1fd3e27fb6758532 [INFO] running `Command { std: "docker" "start" "-a" "d0ef930f738cd784666b64272577109abd9d27e37530a3da1fd3e27fb6758532", kill_on_drop: false }` [INFO] [stderr] Checking file_common v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/hash_map.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/hash_map.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo` is never used [INFO] [stdout] --> src/main.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn foo(){ [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `number` is never read [INFO] [stdout] --> src/person.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct PhoneNumber{ [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 11 | pub area_code : Option, [INFO] [stdout] 12 | pub number : u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `PhoneNumber` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Carrot` and `Potato` are never constructed [INFO] [stdout] --> src/commap.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub enum Food{ [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 3 | Apple, [INFO] [stdout] 4 | Carrot, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 5 | Potato, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Food` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Pork` and `Sheep` are never constructed [INFO] [stdout] --> src/commap.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub enum Meat{ [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 9 | Pork, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | Sheep, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Meat` 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 `0` and `1` are never read [INFO] [stdout] --> src/commap.rs:18:19 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct Cooked(Food,Meat); [INFO] [stdout] | ------ ^^^^ ^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `Cooked` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `peel` is never used [INFO] [stdout] --> src/commap.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn peel(food : Option,meat :Option)->Option{ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cookable_v1` is never used [INFO] [stdout] --> src/and_then.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn cookable_v1(food:Food)->Option{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multiply` is never used [INFO] [stdout] --> src/twoparse.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn multiply(first_num_str:&str, second_num_str:&str) -> Result{ [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Result` is never used [INFO] [stdout] --> src/define_err.rs:2:6 [INFO] [stdout] | [INFO] [stdout] 2 | type Result = std::result::Result; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `NTHEARD` is never used [INFO] [stdout] --> src/thread.rs:3:7 [INFO] [stdout] | [INFO] [stdout] 3 | const NTHEARD:i32 = 10; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `spawn` is never used [INFO] [stdout] --> src/thread.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn spawn(){ [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/thread.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | child.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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 13 | let _ = child.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo` is never used [INFO] [stdout] --> src/main.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn foo(){ [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `number` is never read [INFO] [stdout] --> src/person.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct PhoneNumber{ [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 11 | pub area_code : Option, [INFO] [stdout] 12 | pub number : u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `PhoneNumber` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Carrot` and `Potato` are never constructed [INFO] [stdout] --> src/commap.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub enum Food{ [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 3 | Apple, [INFO] [stdout] 4 | Carrot, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 5 | Potato, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Food` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Pork` and `Sheep` are never constructed [INFO] [stdout] --> src/commap.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub enum Meat{ [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 9 | Pork, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | Sheep, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Meat` 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 `0` and `1` are never read [INFO] [stdout] --> src/commap.rs:18:19 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct Cooked(Food,Meat); [INFO] [stdout] | ------ ^^^^ ^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `Cooked` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `peel` is never used [INFO] [stdout] --> src/commap.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn peel(food : Option,meat :Option)->Option{ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cookable_v1` is never used [INFO] [stdout] --> src/and_then.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn cookable_v1(food:Food)->Option{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multiply` is never used [INFO] [stdout] --> src/twoparse.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn multiply(first_num_str:&str, second_num_str:&str) -> Result{ [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Result` is never used [INFO] [stdout] --> src/define_err.rs:2:6 [INFO] [stdout] | [INFO] [stdout] 2 | type Result = std::result::Result; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `NTHEARD` is never used [INFO] [stdout] --> src/thread.rs:3:7 [INFO] [stdout] | [INFO] [stdout] 3 | const NTHEARD:i32 = 10; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `spawn` is never used [INFO] [stdout] --> src/thread.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn spawn(){ [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/thread.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | child.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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 13 | let _ = child.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "d0ef930f738cd784666b64272577109abd9d27e37530a3da1fd3e27fb6758532", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0ef930f738cd784666b64272577109abd9d27e37530a3da1fd3e27fb6758532", kill_on_drop: false }` [INFO] [stdout] d0ef930f738cd784666b64272577109abd9d27e37530a3da1fd3e27fb6758532