[INFO] cloning repository https://github.com/vikas-magar/coding_interview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vikas-magar/coding_interview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikas-magar%2Fcoding_interview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikas-magar%2Fcoding_interview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb0f8dabdeaff742089ea27df74b117056a8c239
[INFO] building vikas-magar/coding_interview 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%2Fvikas-magar%2Fcoding_interview" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vikas-magar/coding_interview 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/vikas-magar/coding_interview
[INFO] finished tweaking git repo https://github.com/vikas-magar/coding_interview
[INFO] tweaked toml for git repo https://github.com/vikas-magar/coding_interview written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vikas-magar/coding_interview 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 057a14ac793bc724ae8be2c3d7af2b0d29f5a901b5a042448ed958a29ab540bf
[INFO] running `Command { std: "docker" "start" "-a" "057a14ac793bc724ae8be2c3d7af2b0d29f5a901b5a042448ed958a29ab540bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "057a14ac793bc724ae8be2c3d7af2b0d29f5a901b5a042448ed958a29ab540bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "057a14ac793bc724ae8be2c3d7af2b0d29f5a901b5a042448ed958a29ab540bf", kill_on_drop: false }`
[INFO] [stdout] 057a14ac793bc724ae8be2c3d7af2b0d29f5a901b5a042448ed958a29ab540bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4416fd23d938d9da8d30d4c4151aad8386b3c83d93ce7368f8b8fef991dc7380
[INFO] running `Command { std: "docker" "start" "-a" "4416fd23d938d9da8d30d4c4151aad8386b3c83d93ce7368f8b8fef991dc7380", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling coding v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib/leetcode/top_interview_150/is_happy.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut nn = n.clone();
[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: function `how_many` is never used
[INFO] [stdout]   --> src/lib/leetcode/random/min_eating_speed.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn how_many(piles: &[i32], mid: i32, h: i32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.67s
[INFO] running `Command { std: "docker" "inspect" "4416fd23d938d9da8d30d4c4151aad8386b3c83d93ce7368f8b8fef991dc7380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4416fd23d938d9da8d30d4c4151aad8386b3c83d93ce7368f8b8fef991dc7380", kill_on_drop: false }`
[INFO] [stdout] 4416fd23d938d9da8d30d4c4151aad8386b3c83d93ce7368f8b8fef991dc7380
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 42142ec64d10c4a5663b1bbe64ed8846e4e095c3c1244349e2905f8e2a950c0f
[INFO] running `Command { std: "docker" "start" "-a" "42142ec64d10c4a5663b1bbe64ed8846e4e095c3c1244349e2905f8e2a950c0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling coding v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib/leetcode/top_interview_150/is_happy.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut nn = n.clone();
[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: function `how_many` is never used
[INFO] [stdout]   --> src/lib/leetcode/random/min_eating_speed.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn how_many(piles: &[i32], mid: i32, h: i32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib/leetcode/top_interview_150/is_happy.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut nn = n.clone();
[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: function `how_many` is never used
[INFO] [stdout]   --> src/lib/leetcode/random/min_eating_speed.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn how_many(piles: &[i32], mid: i32, h: i32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "42142ec64d10c4a5663b1bbe64ed8846e4e095c3c1244349e2905f8e2a950c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42142ec64d10c4a5663b1bbe64ed8846e4e095c3c1244349e2905f8e2a950c0f", kill_on_drop: false }`
[INFO] [stdout] 42142ec64d10c4a5663b1bbe64ed8846e4e095c3c1244349e2905f8e2a950c0f