[INFO] fetching crate qrcodegen 1.6.0...
[INFO] checking qrcodegen-1.6.0 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate qrcodegen 1.6.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate qrcodegen 1.6.0 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qrcodegen 1.6.0
[INFO] finished tweaking crates.io crate qrcodegen 1.6.0
[INFO] tweaked toml for crates.io crate qrcodegen 1.6.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate qrcodegen 1.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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] a40cbd3d3a2afbde5f24953392ec3b26a858ebf3dace67c7e204f66bcd98007d
[INFO] running `Command { std: "docker" "start" "-a" "a40cbd3d3a2afbde5f24953392ec3b26a858ebf3dace67c7e204f66bcd98007d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a40cbd3d3a2afbde5f24953392ec3b26a858ebf3dace67c7e204f66bcd98007d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40cbd3d3a2afbde5f24953392ec3b26a858ebf3dace67c7e204f66bcd98007d", kill_on_drop: false }`
[INFO] [stdout] a40cbd3d3a2afbde5f24953392ec3b26a858ebf3dace67c7e204f66bcd98007d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc383bad0569abcd446fe03ec25816ea305389774e4e0f997d58fe32b236038f
[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" "fc383bad0569abcd446fe03ec25816ea305389774e4e0f997d58fe32b236038f", kill_on_drop: false }`
[INFO] [stderr]     Checking qrcodegen v1.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:866:3
[INFO] [stdout]     |
[INFO] [stdout] 866 | /         ( i32::from(core && rh[0] >= n * 4 && rh[6] >= n)
[INFO] [stdout] 867 | |         + 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] 866 |         i32::from(core && rh[0] >= n * 4 && rh[6] >= n)
[INFO] [stdout] 867 |         + 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:866:3
[INFO] [stdout]     |
[INFO] [stdout] 866 | /         ( i32::from(core && rh[0] >= n * 4 && rh[6] >= n)
[INFO] [stdout] 867 | |         + 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] 866 |         i32::from(core && rh[0] >= n * 4 && rh[6] >= n)
[INFO] [stdout] 867 |         + i32::from(core && rh[6] >= n * 4 && rh[0] >= n)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `QrCode_MIN_VERSION` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:888:11
[INFO] [stdout]     |
[INFO] [stdout] 888 | pub const QrCode_MIN_VERSION: Version = Version( 1);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `QR_CODE_MIN_VERSION`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `QrCode_MAX_VERSION` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:891:11
[INFO] [stdout]     |
[INFO] [stdout] 891 | pub const QrCode_MAX_VERSION: Version = Version(40);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `QR_CODE_MAX_VERSION`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `QrCode_MIN_VERSION` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:888:11
[INFO] [stdout]     |
[INFO] [stdout] 888 | pub const QrCode_MIN_VERSION: Version = Version( 1);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `QR_CODE_MIN_VERSION`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `QrCode_MAX_VERSION` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:891:11
[INFO] [stdout]     |
[INFO] [stdout] 891 | pub const QrCode_MAX_VERSION: Version = Version(40);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `QR_CODE_MAX_VERSION`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "fc383bad0569abcd446fe03ec25816ea305389774e4e0f997d58fe32b236038f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc383bad0569abcd446fe03ec25816ea305389774e4e0f997d58fe32b236038f", kill_on_drop: false }`
[INFO] [stdout] fc383bad0569abcd446fe03ec25816ea305389774e4e0f997d58fe32b236038f