[INFO] fetching crate corrida 0.1.0...
[INFO] building corrida-0.1.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate corrida 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate corrida 0.1.0 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 crates.io crate corrida 0.1.0
[INFO] finished tweaking crates.io crate corrida 0.1.0
[INFO] tweaked toml for crates.io crate corrida 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate corrida 0.1.0 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c3f31d0631eb49e6b443d456eba6a379f9f63bdcbbba4dd959ac19618ef685ed
[INFO] running `Command { std: "docker" "start" "-a" "c3f31d0631eb49e6b443d456eba6a379f9f63bdcbbba4dd959ac19618ef685ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3f31d0631eb49e6b443d456eba6a379f9f63bdcbbba4dd959ac19618ef685ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3f31d0631eb49e6b443d456eba6a379f9f63bdcbbba4dd959ac19618ef685ed", kill_on_drop: false }`
[INFO] [stdout] c3f31d0631eb49e6b443d456eba6a379f9f63bdcbbba4dd959ac19618ef685ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2f6adc5ab14645216124c495a42e2d97dc42d9b478515c9f9fb127c5353c4b94
[INFO] running `Command { std: "docker" "start" "-a" "2f6adc5ab14645216124c495a42e2d97dc42d9b478515c9f9fb127c5353c4b94", kill_on_drop: false }`
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling const_format v0.2.34
[INFO] [stderr]    Compiling corrida v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "2f6adc5ab14645216124c495a42e2d97dc42d9b478515c9f9fb127c5353c4b94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f6adc5ab14645216124c495a42e2d97dc42d9b478515c9f9fb127c5353c4b94", kill_on_drop: false }`
[INFO] [stdout] 2f6adc5ab14645216124c495a42e2d97dc42d9b478515c9f9fb127c5353c4b94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] fdc78b0902ebac568113f221266d26008c906ce757466faaa98656707bda8430
[INFO] running `Command { std: "docker" "start" "-a" "fdc78b0902ebac568113f221266d26008c906ce757466faaa98656707bda8430", kill_on_drop: false }`
[INFO] [stderr]    Compiling corrida v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `big`
[INFO] [stdout]    --> src/lib.rs:222:17
[INFO] [stdout]     |
[INFO] [stdout] 222 |             let big = arena.alloc([1; 10_000]);
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_big`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "fdc78b0902ebac568113f221266d26008c906ce757466faaa98656707bda8430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdc78b0902ebac568113f221266d26008c906ce757466faaa98656707bda8430", kill_on_drop: false }`
[INFO] [stdout] fdc78b0902ebac568113f221266d26008c906ce757466faaa98656707bda8430