[INFO] cloning repository https://github.com/OfflineBot/RustArrayLib2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OfflineBot/RustArrayLib2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOfflineBot%2FRustArrayLib2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOfflineBot%2FRustArrayLib2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8bc94e3c3d4ebcd3e2d4c1eca63a8e6b56c55e4
[INFO] building OfflineBot/RustArrayLib2 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%2FOfflineBot%2FRustArrayLib2" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OfflineBot/RustArrayLib2 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/OfflineBot/RustArrayLib2
[INFO] finished tweaking git repo https://github.com/OfflineBot/RustArrayLib2
[INFO] tweaked toml for git repo https://github.com/OfflineBot/RustArrayLib2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/OfflineBot/RustArrayLib2 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ce4226a1f402322f665f2b93bd24317ae5075acbb3407ea9c94c81917fe39e0b
[INFO] running `Command { std: "docker" "start" "-a" "ce4226a1f402322f665f2b93bd24317ae5075acbb3407ea9c94c81917fe39e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce4226a1f402322f665f2b93bd24317ae5075acbb3407ea9c94c81917fe39e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce4226a1f402322f665f2b93bd24317ae5075acbb3407ea9c94c81917fe39e0b", kill_on_drop: false }`
[INFO] [stdout] ce4226a1f402322f665f2b93bd24317ae5075acbb3407ea9c94c81917fe39e0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6f0f67b6fb0d18c25a09ee49dc587e9175866dab94a41075290ed269989880ed
[INFO] running `Command { std: "docker" "start" "-a" "6f0f67b6fb0d18c25a09ee49dc587e9175866dab94a41075290ed269989880ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling getrandom v0.2.11
[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 rarray v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `SetVal` is never used
[INFO] [stdout]  --> src/traits/set_val.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait SetVal<T> {
[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 2.83s
[INFO] running `Command { std: "docker" "inspect" "6f0f67b6fb0d18c25a09ee49dc587e9175866dab94a41075290ed269989880ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f0f67b6fb0d18c25a09ee49dc587e9175866dab94a41075290ed269989880ed", kill_on_drop: false }`
[INFO] [stdout] 6f0f67b6fb0d18c25a09ee49dc587e9175866dab94a41075290ed269989880ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 739c3b9c084f384a9feeee63c198e7b995704d576bcbef994750352cdbf4357a
[INFO] running `Command { std: "docker" "start" "-a" "739c3b9c084f384a9feeee63c198e7b995704d576bcbef994750352cdbf4357a", kill_on_drop: false }`
[INFO] [stdout] warning: trait `SetVal` is never used
[INFO] [stdout]  --> src/traits/set_val.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait SetVal<T> {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rarray v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `SetVal` is never used
[INFO] [stdout]  --> src/traits/set_val.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait SetVal<T> {
[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 0.47s
[INFO] running `Command { std: "docker" "inspect" "739c3b9c084f384a9feeee63c198e7b995704d576bcbef994750352cdbf4357a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "739c3b9c084f384a9feeee63c198e7b995704d576bcbef994750352cdbf4357a", kill_on_drop: false }`
[INFO] [stdout] 739c3b9c084f384a9feeee63c198e7b995704d576bcbef994750352cdbf4357a