[INFO] fetching crate qrcode53bytes 1.0.0...
[INFO] checking qrcode53bytes-1.0.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate qrcode53bytes 1.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate qrcode53bytes 1.0.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qrcode53bytes 1.0.0
[INFO] finished tweaking crates.io crate qrcode53bytes 1.0.0
[INFO] tweaked toml for crates.io crate qrcode53bytes 1.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate qrcode53bytes 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e97d9ecb58cee700ceb5cec0f40fc4d707335964fd31049ba5d9e0df46e802aa
[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" "e97d9ecb58cee700ceb5cec0f40fc4d707335964fd31049ba5d9e0df46e802aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e97d9ecb58cee700ceb5cec0f40fc4d707335964fd31049ba5d9e0df46e802aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97d9ecb58cee700ceb5cec0f40fc4d707335964fd31049ba5d9e0df46e802aa", kill_on_drop: false }`
[INFO] [stdout] e97d9ecb58cee700ceb5cec0f40fc4d707335964fd31049ba5d9e0df46e802aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b1c052998a910290115bd032f30286bc93f5f6c22ced54d1aea2879a129cc70
[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" "6b1c052998a910290115bd032f30286bc93f5f6c22ced54d1aea2879a129cc70", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bitvec v0.10.2
[INFO] [stderr]     Checking qrcode53bytes v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/version.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         (((self.index()) * 4) + 21)
[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/version.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         (self.0 - 1)
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/version.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         (((self.index()) * 4) + 21)
[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/version.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         (self.0 - 1)
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "6b1c052998a910290115bd032f30286bc93f5f6c22ced54d1aea2879a129cc70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b1c052998a910290115bd032f30286bc93f5f6c22ced54d1aea2879a129cc70", kill_on_drop: false }`
[INFO] [stdout] 6b1c052998a910290115bd032f30286bc93f5f6c22ced54d1aea2879a129cc70
