[INFO] fetching crate dustbox 0.0.1...
[INFO] documenting dustbox-0.0.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate dustbox 0.0.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate dustbox 0.0.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1024b6a0eadee05916ebdc3390ac5f9100c8cd530c12c2e28532deb04caf0e8d
[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" "1024b6a0eadee05916ebdc3390ac5f9100c8cd530c12c2e28532deb04caf0e8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1024b6a0eadee05916ebdc3390ac5f9100c8cd530c12c2e28532deb04caf0e8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1024b6a0eadee05916ebdc3390ac5f9100c8cd530c12c2e28532deb04caf0e8d", kill_on_drop: false }`
[INFO] [stdout] 1024b6a0eadee05916ebdc3390ac5f9100c8cd530c12c2e28532deb04caf0e8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78970762b8f4a213b9cdb0c14eb03f1b02864b24f92c16757c3114c4a12dc9aa
[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" "78970762b8f4a213b9cdb0c14eb03f1b02864b24f92c16757c3114c4a12dc9aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]     Checking unic-common v0.7.0
[INFO] [stderr]     Checking unic-char-range v0.7.0
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking simple-error v0.2.2
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking unic-char-property v0.7.0
[INFO] [stderr]     Checking unic-ucd-version v0.7.0
[INFO] [stderr]     Checking unic-ucd-segment v0.7.0
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking unic-segment v0.7.0
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]  Documenting 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.49s
[INFO] running `Command { std: "docker" "inspect" "78970762b8f4a213b9cdb0c14eb03f1b02864b24f92c16757c3114c4a12dc9aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78970762b8f4a213b9cdb0c14eb03f1b02864b24f92c16757c3114c4a12dc9aa", kill_on_drop: false }`
[INFO] [stdout] 78970762b8f4a213b9cdb0c14eb03f1b02864b24f92c16757c3114c4a12dc9aa
