[INFO] fetching crate th7mo_quickr_qr 0.2.0...
[INFO] checking th7mo_quickr_qr-0.2.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate th7mo_quickr_qr 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate th7mo_quickr_qr 0.2.0
[INFO] finished tweaking crates.io crate th7mo_quickr_qr 0.2.0
[INFO] tweaked toml for crates.io crate th7mo_quickr_qr 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate th7mo_quickr_qr 0.2.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80b96d0f3aa4ff7a19de1e8ff8c4f7738ee1dccc026c05ef008be4a5ea6d7c90
[INFO] running `Command { std: "docker" "start" "-a" "80b96d0f3aa4ff7a19de1e8ff8c4f7738ee1dccc026c05ef008be4a5ea6d7c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80b96d0f3aa4ff7a19de1e8ff8c4f7738ee1dccc026c05ef008be4a5ea6d7c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80b96d0f3aa4ff7a19de1e8ff8c4f7738ee1dccc026c05ef008be4a5ea6d7c90", kill_on_drop: false }`
[INFO] [stdout] 80b96d0f3aa4ff7a19de1e8ff8c4f7738ee1dccc026c05ef008be4a5ea6d7c90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 024e4a7688016c00a0fce402598beadfc9ff2c1e27b6906c3db5485c18c0b68f
[INFO] running `Command { std: "docker" "start" "-a" "024e4a7688016c00a0fce402598beadfc9ff2c1e27b6906c3db5485c18c0b68f", kill_on_drop: false }`
[INFO] [stderr]     Checking th7mo_quickr_qr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `at` is never used
[INFO] [stdout]    --> src/qr_code.rs:131:8
[INFO] [stdout]     |
[INFO] [stdout]  10 | impl QRCode {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 131 |     fn at(&self, row: usize, col: usize) -> &Bit {
[INFO] [stdout]     |        ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/qr_code.rs:207:31
[INFO] [stdout]     |
[INFO] [stdout] 207 |         assert_eq!(qr_v1.bits[(qr_v1.size - 1)].len() - 8, VERSION_1_DIMENSIONS_LENGTH);
[INFO] [stdout]     |                               ^              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 207 -         assert_eq!(qr_v1.bits[(qr_v1.size - 1)].len() - 8, VERSION_1_DIMENSIONS_LENGTH);
[INFO] [stdout] 207 +         assert_eq!(qr_v1.bits[qr_v1.size - 1].len() - 8, VERSION_1_DIMENSIONS_LENGTH);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/qr_code.rs:217:31
[INFO] [stdout]     |
[INFO] [stdout] 217 |         assert_eq!(qr_v2.bits[(qr_v2.size - 1)].len() - 8, VERSION_2_DIMENSIONS_LENGTH);
[INFO] [stdout]     |                               ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 217 -         assert_eq!(qr_v2.bits[(qr_v2.size - 1)].len() - 8, VERSION_2_DIMENSIONS_LENGTH);
[INFO] [stdout] 217 +         assert_eq!(qr_v2.bits[qr_v2.size - 1].len() - 8, VERSION_2_DIMENSIONS_LENGTH);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/qr_code.rs:227:32
[INFO] [stdout]     |
[INFO] [stdout] 227 |         assert_eq!(qr_v10.bits[(qr_v10.size - 1)].len() - 8, VERSION_10_DIMENSIONS_LENGTH);
[INFO] [stdout]     |                                ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 227 -         assert_eq!(qr_v10.bits[(qr_v10.size - 1)].len() - 8, VERSION_10_DIMENSIONS_LENGTH);
[INFO] [stdout] 227 +         assert_eq!(qr_v10.bits[qr_v10.size - 1].len() - 8, VERSION_10_DIMENSIONS_LENGTH);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/qr_code.rs:237:32
[INFO] [stdout]     |
[INFO] [stdout] 237 |         assert_eq!(qr_v25.bits[(qr_v25.size - 1)].len() - 8, VERSION_25_DIMENSIONS_LENGTH);
[INFO] [stdout]     |                                ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 237 -         assert_eq!(qr_v25.bits[(qr_v25.size - 1)].len() - 8, VERSION_25_DIMENSIONS_LENGTH);
[INFO] [stdout] 237 +         assert_eq!(qr_v25.bits[qr_v25.size - 1].len() - 8, VERSION_25_DIMENSIONS_LENGTH);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/qr_code.rs:247:32
[INFO] [stdout]     |
[INFO] [stdout] 247 |         assert_eq!(qr_v40.bits[(qr_v40.size - 1)].len() - 8, VERSION_40_DIMENSIONS_LENGTH);
[INFO] [stdout]     |                                ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 247 -         assert_eq!(qr_v40.bits[(qr_v40.size - 1)].len() - 8, VERSION_40_DIMENSIONS_LENGTH);
[INFO] [stdout] 247 +         assert_eq!(qr_v40.bits[qr_v40.size - 1].len() - 8, VERSION_40_DIMENSIONS_LENGTH);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "024e4a7688016c00a0fce402598beadfc9ff2c1e27b6906c3db5485c18c0b68f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "024e4a7688016c00a0fce402598beadfc9ff2c1e27b6906c3db5485c18c0b68f", kill_on_drop: false }`
[INFO] [stdout] 024e4a7688016c00a0fce402598beadfc9ff2c1e27b6906c3db5485c18c0b68f