[INFO] fetching crate qrcodegen 1.7.0...
[INFO] checking qrcodegen-1.7.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate qrcodegen 1.7.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate qrcodegen 1.7.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qrcodegen 1.7.0
[INFO] finished tweaking crates.io crate qrcodegen 1.7.0
[INFO] tweaked toml for crates.io crate qrcodegen 1.7.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate qrcodegen 1.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01f2ba10e9c622c944c5f6d62209a2c0a4c5c547ceeab4ccbec3822af87710c8
[INFO] running `Command { std: "docker" "start" "-a" "01f2ba10e9c622c944c5f6d62209a2c0a4c5c547ceeab4ccbec3822af87710c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01f2ba10e9c622c944c5f6d62209a2c0a4c5c547ceeab4ccbec3822af87710c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01f2ba10e9c622c944c5f6d62209a2c0a4c5c547ceeab4ccbec3822af87710c8", kill_on_drop: false }`
[INFO] [stdout] 01f2ba10e9c622c944c5f6d62209a2c0a4c5c547ceeab4ccbec3822af87710c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db789dd3d87f0e4ea43dadff58e10392e7f3e15f9ffdacd856bf9f2a9499e40f
[INFO] running `Command { std: "docker" "start" "-a" "db789dd3d87f0e4ea43dadff58e10392e7f3e15f9ffdacd856bf9f2a9499e40f", kill_on_drop: false }`
[INFO] [stderr]     Checking qrcodegen v1.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:837:3
[INFO] [stdout]     |
[INFO] [stdout] 837 | /         ( i32::from(core && rh[0] >= n * 4 && rh[6] >= n)
[INFO] [stdout] 838 | |         + i32::from(core && rh[6] >= n * 4 && rh[0] >= n))
[INFO] [stdout]     | |__________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 837 ~         i32::from(core && rh[0] >= n * 4 && rh[6] >= n)
[INFO] [stdout] 838 ~         + i32::from(core && rh[6] >= n * 4 && rh[0] >= n)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:837:3
[INFO] [stdout]     |
[INFO] [stdout] 837 | /         ( i32::from(core && rh[0] >= n * 4 && rh[6] >= n)
[INFO] [stdout] 838 | |         + i32::from(core && rh[6] >= n * 4 && rh[0] >= n))
[INFO] [stdout]     | |__________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 837 ~         i32::from(core && rh[0] >= n * 4 && rh[6] >= n)
[INFO] [stdout] 838 ~         + i32::from(core && rh[6] >= n * 4 && rh[0] >= n)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db789dd3d87f0e4ea43dadff58e10392e7f3e15f9ffdacd856bf9f2a9499e40f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db789dd3d87f0e4ea43dadff58e10392e7f3e15f9ffdacd856bf9f2a9499e40f", kill_on_drop: false }`
[INFO] [stdout] db789dd3d87f0e4ea43dadff58e10392e7f3e15f9ffdacd856bf9f2a9499e40f