[INFO] fetching crate qrcodegen 1.7.0...
[INFO] checking qrcodegen-1.7.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate qrcodegen 1.7.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate qrcodegen 1.7.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-12/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7812d4ad82bdc4cb9609d833f5c439423076b43322d384644b98e309c3bf8226
[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" "7812d4ad82bdc4cb9609d833f5c439423076b43322d384644b98e309c3bf8226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7812d4ad82bdc4cb9609d833f5c439423076b43322d384644b98e309c3bf8226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7812d4ad82bdc4cb9609d833f5c439423076b43322d384644b98e309c3bf8226", kill_on_drop: false }`
[INFO] [stdout] 7812d4ad82bdc4cb9609d833f5c439423076b43322d384644b98e309c3bf8226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43481fd314f58c0983ef949f7c3142ba7163820ddd517fccbbf0f0559ee3641c
[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" "43481fd314f58c0983ef949f7c3142ba7163820ddd517fccbbf0f0559ee3641c", 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]     |         ^^
[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]     |         ^^
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "43481fd314f58c0983ef949f7c3142ba7163820ddd517fccbbf0f0559ee3641c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43481fd314f58c0983ef949f7c3142ba7163820ddd517fccbbf0f0559ee3641c", kill_on_drop: false }`
[INFO] [stdout] 43481fd314f58c0983ef949f7c3142ba7163820ddd517fccbbf0f0559ee3641c