[INFO] fetching crate r_tracer 1.0.4...
[INFO] checking r_tracer-1.0.4 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate r_tracer 1.0.4 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate r_tracer 1.0.4 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 r_tracer 1.0.4
[INFO] finished tweaking crates.io crate r_tracer 1.0.4
[INFO] tweaked toml for crates.io crate r_tracer 1.0.4 written to /workspace/builds/worker-3-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 158 packages to latest compatible versions
[INFO] [stderr]       Adding anes v0.1.6 (available: v0.2.0)
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[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.13.0)
[INFO] [stderr]       Adding libredox v0.0.2 (available: v0.1.3)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
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[INFO] [stderr]       Adding miniz_oxide v0.7.4 (available: v0.8.0)
[INFO] [stderr]       Adding nix v0.24.3 (available: v0.29.0)
[INFO] [stderr]       Adding raw-window-handle v0.4.3 (available: v0.6.2)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (available: v0.5.6)
[INFO] [stderr]       Adding sdl2 v0.35.2 (available: v0.37.0)
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[INFO] [stderr]       Adding version-compare v0.1.1 (available: v0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding wayland-client v0.29.5 (available: v0.31.6)
[INFO] [stderr]       Adding wayland-cursor v0.29.5 (available: v0.31.6)
[INFO] [stderr]       Adding wayland-protocols v0.29.5 (available: v0.32.4)
[INFO] [stderr]       Adding wayland-scanner v0.29.5 (available: v0.31.5)
[INFO] [stderr]       Adding wayland-sys v0.29.5 (available: v0.31.5)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e3c6cb4ef7dd4daef23185bb1fa97d36cbb11b5d23e166bb6ff07733080eb185
[INFO] running `Command { std: "docker" "start" "-a" "e3c6cb4ef7dd4daef23185bb1fa97d36cbb11b5d23e166bb6ff07733080eb185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3c6cb4ef7dd4daef23185bb1fa97d36cbb11b5d23e166bb6ff07733080eb185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c6cb4ef7dd4daef23185bb1fa97d36cbb11b5d23e166bb6ff07733080eb185", kill_on_drop: false }`
[INFO] [stdout] e3c6cb4ef7dd4daef23185bb1fa97d36cbb11b5d23e166bb6ff07733080eb185
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] aed460cda979ea43bc791ac20ee2e5e4500381bad7a5228ab79742c746f22941
[INFO] running `Command { std: "docker" "start" "-a" "aed460cda979ea43bc791ac20ee2e5e4500381bad7a5228ab79742c746f22941", kill_on_drop: false }`
[INFO] [stderr]    Compiling xml-rs v0.8.22
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking libloading v0.8.5
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking miniz_oxide v0.7.4
[INFO] [stderr]    Compiling minifb v0.24.0
[INFO] [stderr]     Checking fdeflate v0.3.5
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking xcursor v0.3.8
[INFO] [stderr]     Checking bytemuck v1.18.0
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]     Checking tempfile v3.13.0
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking is-terminal v0.4.13
[INFO] [stderr]     Checking pk_stl v0.3.1
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking exr v1.72.0
[INFO] [stderr]     Checking flate2 v1.0.34
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking png v0.17.14
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking obj-rs v0.7.4
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking wayland-cursor v0.29.5
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking r_tracer v1.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `black_box`
[INFO] [stdout]  --> benches/benches.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{black_box, criterion_group, criterion_main, Criterion};
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/benches.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     save_vector2d_as_png(&frame, "../Renders/render.png");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let _ = save_vector2d_as_png(&frame, "../Renders/render.png");
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.48s
[INFO] running `Command { std: "docker" "inspect" "aed460cda979ea43bc791ac20ee2e5e4500381bad7a5228ab79742c746f22941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aed460cda979ea43bc791ac20ee2e5e4500381bad7a5228ab79742c746f22941", kill_on_drop: false }`
[INFO] [stdout] aed460cda979ea43bc791ac20ee2e5e4500381bad7a5228ab79742c746f22941