[INFO] cloning repository https://github.com/kylebfredrickson/otils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kylebfredrickson/otils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylebfredrickson%2Fotils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylebfredrickson%2Fotils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c3e4f931bed4bff1369538d8a066344fb31e4ec
[INFO] building kylebfredrickson/otils 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%2Fkylebfredrickson%2Fotils" "/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/kylebfredrickson/otils 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] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/kylebfredrickson/otils
[INFO] finished tweaking git repo https://github.com/kylebfredrickson/otils
[INFO] tweaked toml for git repo https://github.com/kylebfredrickson/otils written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kylebfredrickson/otils 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-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c58d6d6c7f361ffc0690815f1a54b02b748285b308b7edee65c5770bc63e7d55
[INFO] running `Command { std: "docker" "start" "-a" "c58d6d6c7f361ffc0690815f1a54b02b748285b308b7edee65c5770bc63e7d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c58d6d6c7f361ffc0690815f1a54b02b748285b308b7edee65c5770bc63e7d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c58d6d6c7f361ffc0690815f1a54b02b748285b308b7edee65c5770bc63e7d55", kill_on_drop: false }`
[INFO] [stdout] c58d6d6c7f361ffc0690815f1a54b02b748285b308b7edee65c5770bc63e7d55
[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 -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] f676f1ca5f2898467263a071efbf3ecc29dbf0682029d88142f16642c4de1103
[INFO] running `Command { std: "docker" "start" "-a" "f676f1ca5f2898467263a071efbf3ecc29dbf0682029d88142f16642c4de1103", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling cc v1.0.95
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling otils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stdout] warning: function `swap2` is never used
[INFO] [stdout]   --> src/ops/swap.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn swap2<T>(cond: bool, a: &mut T, b: &mut T) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap8` is never used
[INFO] [stdout]  --> src/ops/swap.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn swap8(cond: u8, a: *mut u8, b: *mut u8);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.39s
[INFO] running `Command { std: "docker" "inspect" "f676f1ca5f2898467263a071efbf3ecc29dbf0682029d88142f16642c4de1103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f676f1ca5f2898467263a071efbf3ecc29dbf0682029d88142f16642c4de1103", kill_on_drop: false }`
[INFO] [stdout] f676f1ca5f2898467263a071efbf3ecc29dbf0682029d88142f16642c4de1103
[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 -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] 54d0a7c5fe04186d08b6145275795a273afe6a45b4528bf0e6e59e9fcc6cc7bd
[INFO] running `Command { std: "docker" "start" "-a" "54d0a7c5fe04186d08b6145275795a273afe6a45b4528bf0e6e59e9fcc6cc7bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling otils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `swap2` is never used
[INFO] [stdout]   --> src/ops/swap.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn swap2<T>(cond: bool, a: &mut T, b: &mut T) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap8` is never used
[INFO] [stdout]  --> src/ops/swap.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn swap8(cond: u8, a: *mut u8, b: *mut u8);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "54d0a7c5fe04186d08b6145275795a273afe6a45b4528bf0e6e59e9fcc6cc7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54d0a7c5fe04186d08b6145275795a273afe6a45b4528bf0e6e59e9fcc6cc7bd", kill_on_drop: false }`
[INFO] [stdout] 54d0a7c5fe04186d08b6145275795a273afe6a45b4528bf0e6e59e9fcc6cc7bd