[INFO] fetching crate dustbox 0.0.1...
[INFO] checking dustbox-0.0.1 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate dustbox 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dustbox 0.0.1 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dustbox 0.0.1
[INFO] finished tweaking crates.io crate dustbox 0.0.1
[INFO] tweaked toml for crates.io crate dustbox 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ucd-trie v0.1.3
[INFO] [stderr]   Downloaded pest_generator v2.1.3
[INFO] [stderr]   Downloaded slug v0.1.4
[INFO] [stderr]   Downloaded pest v2.1.3
[INFO] [stderr]   Downloaded pest_meta v2.1.3
[INFO] [stderr]   Downloaded humansize v1.1.0
[INFO] [stderr]   Downloaded unic-char-range v0.7.0
[INFO] [stderr]   Downloaded unic-ucd-version v0.7.0
[INFO] [stderr]   Downloaded tera v0.11.20
[INFO] [stderr]   Downloaded sdl2 v0.32.2
[INFO] [stderr]   Downloaded unic-char-property v0.7.0
[INFO] [stderr]   Downloaded unic-common v0.7.0
[INFO] [stderr]   Downloaded simple-error v0.2.2
[INFO] [stderr]   Downloaded unic-ucd-segment v0.7.0
[INFO] [stderr]   Downloaded sdl2-sys v0.32.6
[INFO] [stderr]   Downloaded deunicode v0.4.3
[INFO] [stderr]   Downloaded unic-segment v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d903a5fc73dcba9ecc5b8e309435bfae9bc717d60caa4aae04964640abb7d290
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d903a5fc73dcba9ecc5b8e309435bfae9bc717d60caa4aae04964640abb7d290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d903a5fc73dcba9ecc5b8e309435bfae9bc717d60caa4aae04964640abb7d290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d903a5fc73dcba9ecc5b8e309435bfae9bc717d60caa4aae04964640abb7d290", kill_on_drop: false }`
[INFO] [stdout] d903a5fc73dcba9ecc5b8e309435bfae9bc717d60caa4aae04964640abb7d290
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 995c45e5e226ca3cd4789b5987c61ffcd832169960b36a4afdd2d96a5af5bd82
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "995c45e5e226ca3cd4789b5987c61ffcd832169960b36a4afdd2d96a5af5bd82", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking simple-error v0.2.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking dustbox v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/machine.rs:1813:25
[INFO] [stdout]      |
[INFO] [stdout] 1813 |                         ((op1 << 1) | cf)
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/machine.rs:1815:25
[INFO] [stdout]      |
[INFO] [stdout] 1815 |                         ((op1 << count) | (cf << (count - 1)) | (op1 >> (9 - count)))
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/machine.rs:2029:25
[INFO] [stdout]      |
[INFO] [stdout] 2029 |                         ((op1 as usize) >> count)
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/machine.rs:1813:25
[INFO] [stdout]      |
[INFO] [stdout] 1813 |                         ((op1 << 1) | cf)
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/machine.rs:1815:25
[INFO] [stdout]      |
[INFO] [stdout] 1815 |                         ((op1 << count) | (cf << (count - 1)) | (op1 >> (9 - count)))
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/machine.rs:2029:25
[INFO] [stdout]      |
[INFO] [stdout] 2029 |                         ((op1 as usize) >> count)
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.44s
[INFO] running `Command { std: "docker" "inspect" "995c45e5e226ca3cd4789b5987c61ffcd832169960b36a4afdd2d96a5af5bd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "995c45e5e226ca3cd4789b5987c61ffcd832169960b36a4afdd2d96a5af5bd82", kill_on_drop: false }`
[INFO] [stdout] 995c45e5e226ca3cd4789b5987c61ffcd832169960b36a4afdd2d96a5af5bd82