[INFO] cloning repository https://github.com/lizeyan/learn-rust-leetcode [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lizeyan/learn-rust-leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizeyan%2Flearn-rust-leetcode", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizeyan%2Flearn-rust-leetcode'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5e3a12fe3e43ff072e1bac4f7dd3b3368a9d22d9 [INFO] building lizeyan/learn-rust-leetcode against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizeyan%2Flearn-rust-leetcode" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lizeyan/learn-rust-leetcode on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/lizeyan/learn-rust-leetcode [INFO] finished tweaking git repo https://github.com/lizeyan/learn-rust-leetcode [INFO] tweaked toml for git repo https://github.com/lizeyan/learn-rust-leetcode written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/lizeyan/learn-rust-leetcode 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e7877319d2ff5a4bfe0c60a77db896be98b3ab122eeaaa6251dc9220817a00c1 [INFO] running `Command { std: "docker" "start" "-a" "e7877319d2ff5a4bfe0c60a77db896be98b3ab122eeaaa6251dc9220817a00c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e7877319d2ff5a4bfe0c60a77db896be98b3ab122eeaaa6251dc9220817a00c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e7877319d2ff5a4bfe0c60a77db896be98b3ab122eeaaa6251dc9220817a00c1", kill_on_drop: false }` [INFO] [stdout] e7877319d2ff5a4bfe0c60a77db896be98b3ab122eeaaa6251dc9220817a00c1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f3a7131bc17c77813afaddc1360dd8767684e34ada66a4192590f0f765274373 [INFO] running `Command { std: "docker" "start" "-a" "f3a7131bc17c77813afaddc1360dd8767684e34ada66a4192590f0f765274373", kill_on_drop: false }` [INFO] [stderr] Compiling leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/q13.rs:27:22 [INFO] [stdout] | [INFO] [stdout] 27 | _ => (unreachable!()), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 27 - _ => (unreachable!()), [INFO] [stdout] 27 + _ => unreachable!(), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/q5.rs:23:59 [INFO] [stdout] | [INFO] [stdout] 23 | min(radius[2 * rightmost_center - i], (rightmost - i)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 23 - min(radius[2 * rightmost_center - i], (rightmost - i)) [INFO] [stdout] 23 + min(radius[2 * rightmost_center - i], rightmost - i) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/q5.rs:36:77 [INFO] [stdout] | [INFO] [stdout] 36 | let c = radius.iter().enumerate().max_by_key(|(_, &r)| r).map(|(i, &r)| i) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [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/q9.rs:7:22 [INFO] [stdout] | [INFO] [stdout] 7 | fn is_palindrome(mut x: i32) -> bool { [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: trait `Solution` is never used [INFO] [stdout] --> src/q13.rs:1:7 [INFO] [stdout] | [INFO] [stdout] 1 | trait Solution { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SolutionImpl` is never constructed [INFO] [stdout] --> src/q13.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct SolutionImpl; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Solution` is never used [INFO] [stdout] --> src/q1_too_sum.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | trait Solution { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SolutionImpl` is never constructed [INFO] [stdout] --> src/q1_too_sum.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct SolutionImpl; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/q2_too_sum.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 9 | #[inline] [INFO] [stdout] 10 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Solution` is never used [INFO] [stdout] --> src/q2_too_sum.rs:18:7 [INFO] [stdout] | [INFO] [stdout] 18 | trait Solution { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SolutionImpl` is never constructed [INFO] [stdout] --> src/q2_too_sum.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | struct SolutionImpl; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `reverse_list` is never used [INFO] [stdout] --> src/q2_too_sum.rs:50:4 [INFO] [stdout] | [INFO] [stdout] 50 | fn reverse_list(mut head: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Solution` is never used [INFO] [stdout] --> src/q3.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | trait Solution { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SolutionImpl` is never constructed [INFO] [stdout] --> src/q3.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct SolutionImpl; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Solution` is never used [INFO] [stdout] --> src/q4.rs:3:7 [INFO] [stdout] | [INFO] [stdout] 3 | trait Solution { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SolutionImpl` is never constructed [INFO] [stdout] --> src/q4.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct SolutionImpl; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Solution` is never used [INFO] [stdout] --> src/q5.rs:3:7 [INFO] [stdout] | [INFO] [stdout] 3 | trait Solution { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SolutionImpl` is never constructed [INFO] [stdout] --> src/q5.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct SolutionImpl; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Solution` is never used [INFO] [stdout] --> src/q9.rs:1:7 [INFO] [stdout] | [INFO] [stdout] 1 | trait Solution { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SolutionImpl` is never constructed [INFO] [stdout] --> src/q9.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct SolutionImpl; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `Command { std: "docker" "inspect" "f3a7131bc17c77813afaddc1360dd8767684e34ada66a4192590f0f765274373", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3a7131bc17c77813afaddc1360dd8767684e34ada66a4192590f0f765274373", kill_on_drop: false }` [INFO] [stdout] f3a7131bc17c77813afaddc1360dd8767684e34ada66a4192590f0f765274373 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ff7f125726069c121a942aaa983ff393e1ca1b7fc6f772352d9c0cd797aa8dfc [INFO] running `Command { std: "docker" "start" "-a" "ff7f125726069c121a942aaa983ff393e1ca1b7fc6f772352d9c0cd797aa8dfc", kill_on_drop: false }` [INFO] [stderr] Compiling leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/q13.rs:27:22 [INFO] [stdout] | [INFO] [stdout] 27 | _ => (unreachable!()), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 27 - _ => (unreachable!()), [INFO] [stdout] 27 + _ => unreachable!(), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/q5.rs:23:59 [INFO] [stdout] | [INFO] [stdout] 23 | min(radius[2 * rightmost_center - i], (rightmost - i)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 23 - min(radius[2 * rightmost_center - i], (rightmost - i)) [INFO] [stdout] 23 + min(radius[2 * rightmost_center - i], rightmost - i) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 103 | list![2,4,3], [INFO] [stdout] | ------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 104 | list![5,6,4] [INFO] [stdout] | ------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | list![7,0,8] [INFO] [stdout] | ------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | list![0], [INFO] [stdout] | -------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 113 | list![0] [INFO] [stdout] | -------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | list![0] [INFO] [stdout] | -------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 121 | list![9,9,9,9,9,9,9], [INFO] [stdout] | -------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 122 | list![9,9,9,9] [INFO] [stdout] | -------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 124 | list![8,9,9,9,0,0,0,1] [INFO] [stdout] | ---------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 130 | list![1], [INFO] [stdout] | -------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | list![9,9,9,9,9,9,9,9,9,9] [INFO] [stdout] | -------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/q2_too_sum.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | current = &mut current.as_mut().unwrap().next; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 133 | list![0,0,0,0,0,0,0,0,0,0,1] [INFO] [stdout] | ---------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: this warning originates in the macro `list` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/q5.rs:36:77 [INFO] [stdout] | [INFO] [stdout] 36 | let c = radius.iter().enumerate().max_by_key(|(_, &r)| r).map(|(i, &r)| i) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [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/q9.rs:7:22 [INFO] [stdout] | [INFO] [stdout] 7 | fn is_palindrome(mut x: i32) -> bool { [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] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `Command { std: "docker" "inspect" "ff7f125726069c121a942aaa983ff393e1ca1b7fc6f772352d9c0cd797aa8dfc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff7f125726069c121a942aaa983ff393e1ca1b7fc6f772352d9c0cd797aa8dfc", kill_on_drop: false }` [INFO] [stdout] ff7f125726069c121a942aaa983ff393e1ca1b7fc6f772352d9c0cd797aa8dfc