[INFO] fetching crate qrcodegen 1.7.0...
[INFO] checking qrcodegen-1.7.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate qrcodegen 1.7.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate qrcodegen 1.7.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-10/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 823739cd08a803eb46245c89bc8da418b3bd0eef8c96f200ad5cfd2a8c14b5cf
[INFO] running `Command { std: "docker" "start" "-a" "823739cd08a803eb46245c89bc8da418b3bd0eef8c96f200ad5cfd2a8c14b5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "823739cd08a803eb46245c89bc8da418b3bd0eef8c96f200ad5cfd2a8c14b5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "823739cd08a803eb46245c89bc8da418b3bd0eef8c96f200ad5cfd2a8c14b5cf", kill_on_drop: false }`
[INFO] [stdout] 823739cd08a803eb46245c89bc8da418b3bd0eef8c96f200ad5cfd2a8c14b5cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 096336cd2f76fb76a924c8056c68dda1b1c21937d9672b87b9087392db832d7b
[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" "096336cd2f76fb76a924c8056c68dda1b1c21937d9672b87b9087392db832d7b", 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 0.83s
[INFO] running `Command { std: "docker" "inspect" "096336cd2f76fb76a924c8056c68dda1b1c21937d9672b87b9087392db832d7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "096336cd2f76fb76a924c8056c68dda1b1c21937d9672b87b9087392db832d7b", kill_on_drop: false }`
[INFO] [stdout] 096336cd2f76fb76a924c8056c68dda1b1c21937d9672b87b9087392db832d7b