[INFO] fetching crate gymnasium-rs 0.1.1...
[INFO] checking gymnasium-rs-0.1.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate gymnasium-rs 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate gymnasium-rs 0.1.1 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gymnasium-rs 0.1.1
[INFO] finished tweaking crates.io crate gymnasium-rs 0.1.1
[INFO] tweaked toml for crates.io crate gymnasium-rs 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 69 packages to latest compatible versions
[INFO] [stderr]       Adding encode_unicode v0.3.6 (available: v1.0.0)
[INFO] [stderr]       Adding indoc v1.0.9 (available: v2.0.5)
[INFO] [stderr]       Adding ndarray v0.15.6 (available: v0.16.1)
[INFO] [stderr]       Adding ndarray-rand v0.14.0 (available: v0.15.0)
[INFO] [stderr]       Adding numpy v0.19.0 (available: v0.21.0)
[INFO] [stderr]       Adding pyo3 v0.19.2 (available: v0.22.3)
[INFO] [stderr]       Adding pyo3-build-config v0.19.2 (available: v0.22.3)
[INFO] [stderr]       Adding pyo3-ffi v0.19.2 (available: v0.22.3)
[INFO] [stderr]       Adding pyo3-macros v0.19.2 (available: v0.22.3)
[INFO] [stderr]       Adding pyo3-macros-backend v0.19.2 (available: v0.22.3)
[INFO] [stderr]       Adding rustc-hash v1.1.0 (available: v2.0.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.79)
[INFO] [stderr]       Adding unicode-width v0.1.14 (available: v0.2.0)
[INFO] [stderr]       Adding unindent v0.1.11 (available: v0.2.3)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25f3fea09728c1f00221a363ec09ed8e56b0ad792b6c6b4972383cdcada688d4
[INFO] running `Command { std: "docker" "start" "-a" "25f3fea09728c1f00221a363ec09ed8e56b0ad792b6c6b4972383cdcada688d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25f3fea09728c1f00221a363ec09ed8e56b0ad792b6c6b4972383cdcada688d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25f3fea09728c1f00221a363ec09ed8e56b0ad792b6c6b4972383cdcada688d4", kill_on_drop: false }`
[INFO] [stdout] 25f3fea09728c1f00221a363ec09ed8e56b0ad792b6c6b4972383cdcada688d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fb05c5bb8794016be7f1f4254ae045daeff3aa03c97f5eefaadf9be0fae6c0c
[INFO] running `Command { std: "docker" "start" "-a" "7fb05c5bb8794016be7f1f4254ae045daeff3aa03c97f5eefaadf9be0fae6c0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling portable-atomic v1.9.0
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking unindent v0.1.11
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]    Compiling pyo3-macros-backend v0.19.2
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling pyo3-build-config v0.19.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking indicatif v0.17.8
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling pyo3-ffi v0.19.2
[INFO] [stderr]    Compiling pyo3 v0.19.2
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling pyo3-macros v0.19.2
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking numpy v0.19.0
[INFO] [stderr]     Checking gymnasium-rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `info`
[INFO] [stdout]   --> src/lib.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let (obs, info) = env.reset_default();
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_info`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.91s
[INFO] running `Command { std: "docker" "inspect" "7fb05c5bb8794016be7f1f4254ae045daeff3aa03c97f5eefaadf9be0fae6c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fb05c5bb8794016be7f1f4254ae045daeff3aa03c97f5eefaadf9be0fae6c0c", kill_on_drop: false }`
[INFO] [stdout] 7fb05c5bb8794016be7f1f4254ae045daeff3aa03c97f5eefaadf9be0fae6c0c