[INFO] fetching crate dustbox 0.0.1...
[INFO] checking dustbox-0.0.1 against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] extracting crate dustbox 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate dustbox 0.0.1 on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6458b85e83390a1a38e4bad3cf27472425ad2791c61e81ca8688f0b0702d27b6
[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" "6458b85e83390a1a38e4bad3cf27472425ad2791c61e81ca8688f0b0702d27b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6458b85e83390a1a38e4bad3cf27472425ad2791c61e81ca8688f0b0702d27b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6458b85e83390a1a38e4bad3cf27472425ad2791c61e81ca8688f0b0702d27b6", kill_on_drop: false }`
[INFO] [stdout] 6458b85e83390a1a38e4bad3cf27472425ad2791c61e81ca8688f0b0702d27b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 603752d45d4003f079c86f44ebfae6141ab38efcf9ba6fd2a79e7d6362ba295c
[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" "603752d45d4003f079c86f44ebfae6141ab38efcf9ba6fd2a79e7d6362ba295c", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling autocfg v0.1.7
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[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking criterion-plot v0.3.1
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[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
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[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]     Checking criterion v0.2.11
[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: 3 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 52s
[INFO] running `Command { std: "docker" "inspect" "603752d45d4003f079c86f44ebfae6141ab38efcf9ba6fd2a79e7d6362ba295c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "603752d45d4003f079c86f44ebfae6141ab38efcf9ba6fd2a79e7d6362ba295c", kill_on_drop: false }`
[INFO] [stdout] 603752d45d4003f079c86f44ebfae6141ab38efcf9ba6fd2a79e7d6362ba295c