[INFO] cloning repository https://github.com/Hap3b/sort_algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hap3b/sort_algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHap3b%2Fsort_algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHap3b%2Fsort_algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5c86990058ad202070548ece635277c3eaea224
[INFO] building Hap3b/sort_algorithms 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%2FHap3b%2Fsort_algorithms" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hap3b/sort_algorithms 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/Hap3b/sort_algorithms
[INFO] finished tweaking git repo https://github.com/Hap3b/sort_algorithms
[INFO] tweaked toml for git repo https://github.com/Hap3b/sort_algorithms written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Hap3b/sort_algorithms 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] 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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02cc45650c2b1a021f572a5bf2787dea8c9fb1bd28ee9eca6811e4125f1c4717
[INFO] running `Command { std: "docker" "start" "-a" "02cc45650c2b1a021f572a5bf2787dea8c9fb1bd28ee9eca6811e4125f1c4717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02cc45650c2b1a021f572a5bf2787dea8c9fb1bd28ee9eca6811e4125f1c4717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02cc45650c2b1a021f572a5bf2787dea8c9fb1bd28ee9eca6811e4125f1c4717", kill_on_drop: false }`
[INFO] [stdout] 02cc45650c2b1a021f572a5bf2787dea8c9fb1bd28ee9eca6811e4125f1c4717
[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 -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] ad3c51de2ea40aff890aeacb7546d6938280e4f887eaa198b5bc2e884c7ff861
[INFO] running `Command { std: "docker" "start" "-a" "ad3c51de2ea40aff890aeacb7546d6938280e4f887eaa198b5bc2e884c7ff861", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling getrandom v0.2.15
[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 sort_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::is_sorted`
[INFO] [stdout]  --> src/bubble_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::is_sorted;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::is_sorted`
[INFO] [stdout]  --> src/comb_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::is_sorted;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_sorted` is never used
[INFO] [stdout]  --> src/lib.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn is_sorted<T: PartialOrd>(tab: &[T], len: usize) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_shake` is never used
[INFO] [stdout]  --> src/bogo_sort.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn random_shake<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bogo_sort` is never used
[INFO] [stdout]   --> src/bogo_sort.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn bogo_sort<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]  --> src/bubble_sort.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn bubble_sort<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `up` is never used
[INFO] [stdout]  --> src/cocktail_shaker.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn up<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]   |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `down` is never used
[INFO] [stdout]   --> src/cocktail_shaker.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn down<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cocktail_sort` is never used
[INFO] [stdout]   --> src/cocktail_shaker.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn cocktail_sort<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `comb_sort` is never used
[INFO] [stdout]  --> src/comb_sort.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn comb_sort<T: PartialOrd>(tab: &mut [T], len: usize, k: usize) {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "ad3c51de2ea40aff890aeacb7546d6938280e4f887eaa198b5bc2e884c7ff861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad3c51de2ea40aff890aeacb7546d6938280e4f887eaa198b5bc2e884c7ff861", kill_on_drop: false }`
[INFO] [stdout] ad3c51de2ea40aff890aeacb7546d6938280e4f887eaa198b5bc2e884c7ff861
[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 -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] 0b21cfc0be531ea57fd04bb63431a48a9ea5216baa7ccd2980e9d96b57bf4186
[INFO] running `Command { std: "docker" "start" "-a" "0b21cfc0be531ea57fd04bb63431a48a9ea5216baa7ccd2980e9d96b57bf4186", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `crate::is_sorted`
[INFO] [stdout]  --> src/bubble_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::is_sorted;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::is_sorted`
[INFO] [stdout]  --> src/comb_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::is_sorted;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_sorted` is never used
[INFO] [stdout]  --> src/lib.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn is_sorted<T: PartialOrd>(tab: &[T], len: usize) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_shake` is never used
[INFO] [stdout]  --> src/bogo_sort.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn random_shake<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bogo_sort` is never used
[INFO] [stdout]   --> src/bogo_sort.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn bogo_sort<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]  --> src/bubble_sort.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn bubble_sort<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `up` is never used
[INFO] [stdout]  --> src/cocktail_shaker.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn up<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]   |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `down` is never used
[INFO] [stdout]   --> src/cocktail_shaker.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn down<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cocktail_sort` is never used
[INFO] [stdout]   --> src/cocktail_shaker.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn cocktail_sort<T: PartialOrd>(tab: &mut [T], len: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sort_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `comb_sort` is never used
[INFO] [stdout]  --> src/comb_sort.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn comb_sort<T: PartialOrd>(tab: &mut [T], len: usize, k: usize) {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "0b21cfc0be531ea57fd04bb63431a48a9ea5216baa7ccd2980e9d96b57bf4186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b21cfc0be531ea57fd04bb63431a48a9ea5216baa7ccd2980e9d96b57bf4186", kill_on_drop: false }`
[INFO] [stdout] 0b21cfc0be531ea57fd04bb63431a48a9ea5216baa7ccd2980e9d96b57bf4186