[INFO] fetching crate qrcodegen 1.7.0...
[INFO] checking qrcodegen-1.7.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate qrcodegen 1.7.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate qrcodegen 1.7.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-15/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a28ed4d728a8992c21739cfeff8588a810a9d1cf762269ca333e63c25f967f10
[INFO] running `Command { std: "docker" "start" "-a" "a28ed4d728a8992c21739cfeff8588a810a9d1cf762269ca333e63c25f967f10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a28ed4d728a8992c21739cfeff8588a810a9d1cf762269ca333e63c25f967f10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a28ed4d728a8992c21739cfeff8588a810a9d1cf762269ca333e63c25f967f10", kill_on_drop: false }`
[INFO] [stdout] a28ed4d728a8992c21739cfeff8588a810a9d1cf762269ca333e63c25f967f10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a14309ad34218e194535c0c7055ae3dd333053f8a284cfa60555e8a2240062c2
[INFO] running `Command { std: "docker" "start" "-a" "a14309ad34218e194535c0c7055ae3dd333053f8a284cfa60555e8a2240062c2", 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "a14309ad34218e194535c0c7055ae3dd333053f8a284cfa60555e8a2240062c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a14309ad34218e194535c0c7055ae3dd333053f8a284cfa60555e8a2240062c2", kill_on_drop: false }`
[INFO] [stdout] a14309ad34218e194535c0c7055ae3dd333053f8a284cfa60555e8a2240062c2