[INFO] cloning repository https://github.com/Kartik213/Rust-notes [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kartik213/Rust-notes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKartik213%2FRust-notes", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKartik213%2FRust-notes'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8be76251ebd2b77d30571234bd86ca5b70d08e54 [INFO] checking Kartik213/Rust-notes/8be76251ebd2b77d30571234bd86ca5b70d08e54 against master#8a703520e80d87d4423c01f9d4fbc9e5f6533a02 for pr-154205-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKartik213%2FRust-notes" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/Kartik213/Rust-notes [INFO] finished tweaking git repo https://github.com/Kartik213/Rust-notes [INFO] tweaked toml for git repo https://github.com/Kartik213/Rust-notes written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Kartik213/Rust-notes on toolchain 8a703520e80d87d4423c01f9d4fbc9e5f6533a02 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/Kartik213/Rust-notes 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" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio v1.46.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1d33274b0eeb4f1466ca9695fee89eb1de6e44bfc1196639237f8a22257733b5 [INFO] running `Command { std: "docker" "start" "-a" "1d33274b0eeb4f1466ca9695fee89eb1de6e44bfc1196639237f8a22257733b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1d33274b0eeb4f1466ca9695fee89eb1de6e44bfc1196639237f8a22257733b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d33274b0eeb4f1466ca9695fee89eb1de6e44bfc1196639237f8a22257733b5", kill_on_drop: false }` [INFO] [stdout] 1d33274b0eeb4f1466ca9695fee89eb1de6e44bfc1196639237f8a22257733b5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a22eb0c05d10305975872bff35e30f2fa36cff53d71a3438d8b7c0eebf122c63 [INFO] running `Command { std: "docker" "start" "-a" "a22eb0c05d10305975872bff35e30f2fa36cff53d71a3438d8b7c0eebf122c63", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.174 [INFO] [stderr] Compiling parking_lot_core v0.9.11 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] Compiling lock_api v0.4.13 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Checking mio v1.0.4 [INFO] [stderr] Checking socket2 v0.5.10 [INFO] [stderr] Checking signal-hook-registry v1.4.5 [INFO] [stderr] Checking parking_lot v0.12.4 [INFO] [stderr] Checking tokio v1.46.0 [INFO] [stderr] Checking rust-notes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fmt::Formatter` [INFO] [stdout] --> src/main.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | use std::fmt::Formatter; [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: `std::future::Future` [INFO] [stdout] --> src/main.rs:36:5 [INFO] [stdout] | [INFO] [stdout] 36 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fmt::format` and `iter::Sum` [INFO] [stdout] --> src/main.rs:37:33 [INFO] [stdout] | [INFO] [stdout] 37 | use std::{collections::HashMap, fmt::format, fs, iter::Sum}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Formatter` [INFO] [stdout] --> src/main.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | use std::fmt::Formatter; [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: `std::future::Future` [INFO] [stdout] --> src/main.rs:36:5 [INFO] [stdout] | [INFO] [stdout] 36 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fmt::format` and `iter::Sum` [INFO] [stdout] --> src/main.rs:37:33 [INFO] [stdout] | [INFO] [stdout] 37 | use std::{collections::HashMap, fmt::format, fs, iter::Sum}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iter_nums` [INFO] [stdout] --> src/main.rs:588:9 [INFO] [stdout] | [INFO] [stdout] 588 | let iter_nums = nums.iter(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iter_nums` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mutable` is never read [INFO] [stdout] --> src/main.rs:401:23 [INFO] [stdout] | [INFO] [stdout] 401 | let mut mutable = 12; // Mutable `i32` [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: fields `name` and `age` are never read [INFO] [stdout] --> src/main.rs:1071:5 [INFO] [stdout] | [INFO] [stdout] 1070 | struct User2 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 1071 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 1072 | age: u32, [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 `largest_i32` is never used [INFO] [stdout] --> src/main.rs:1116:4 [INFO] [stdout] | [INFO] [stdout] 1116 | fn largest_i32(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `largest_char` is never used [INFO] [stdout] --> src/main.rs:1124:4 [INFO] [stdout] | [INFO] [stdout] 1124 | fn largest_char(a: char, b: char) -> char { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iter_nums` [INFO] [stdout] --> src/main.rs:588:9 [INFO] [stdout] | [INFO] [stdout] 588 | let iter_nums = nums.iter(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iter_nums` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mutable` is never read [INFO] [stdout] --> src/main.rs:401:23 [INFO] [stdout] | [INFO] [stdout] 401 | let mut mutable = 12; // Mutable `i32` [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: fields `name` and `age` are never read [INFO] [stdout] --> src/main.rs:1071:5 [INFO] [stdout] | [INFO] [stdout] 1070 | struct User2 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 1071 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 1072 | age: u32, [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 `largest_i32` is never used [INFO] [stdout] --> src/main.rs:1116:4 [INFO] [stdout] | [INFO] [stdout] 1116 | fn largest_i32(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `largest_char` is never used [INFO] [stdout] --> src/main.rs:1124:4 [INFO] [stdout] | [INFO] [stdout] 1124 | fn largest_char(a: char, b: char) -> char { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.25s [INFO] running `Command { std: "docker" "inspect" "a22eb0c05d10305975872bff35e30f2fa36cff53d71a3438d8b7c0eebf122c63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a22eb0c05d10305975872bff35e30f2fa36cff53d71a3438d8b7c0eebf122c63", kill_on_drop: false }` [INFO] [stdout] a22eb0c05d10305975872bff35e30f2fa36cff53d71a3438d8b7c0eebf122c63