[INFO] fetching crate hex_fmt 0.3.0...
[INFO] testing hex_fmt-0.3.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate hex_fmt 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate hex_fmt 0.3.0
[INFO] finished tweaking crates.io crate hex_fmt 0.3.0
[INFO] tweaked toml for crates.io crate hex_fmt 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hex_fmt 0.3.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58dc1bffc34e9101190fde59a9e93cbebf9973cccb98a0d8435f320cc42f2b56
[INFO] running `Command { std: "docker" "start" "-a" "58dc1bffc34e9101190fde59a9e93cbebf9973cccb98a0d8435f320cc42f2b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58dc1bffc34e9101190fde59a9e93cbebf9973cccb98a0d8435f320cc42f2b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58dc1bffc34e9101190fde59a9e93cbebf9973cccb98a0d8435f320cc42f2b56", kill_on_drop: false }`
[INFO] [stdout] 58dc1bffc34e9101190fde59a9e93cbebf9973cccb98a0d8435f320cc42f2b56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30673d207830b43dabf8f405b20560bcd1335031b0be4db7d1c6bcbae38f2613
[INFO] running `Command { std: "docker" "start" "-a" "30673d207830b43dabf8f405b20560bcd1335031b0be4db7d1c6bcbae38f2613", kill_on_drop: false }`
[INFO] [stderr]    Compiling hex_fmt v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:197:38
[INFO] [stdout]     |
[INFO] [stdout] 197 |             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout]     |                                      ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 197 -             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout] 197 +             Self::fmt_digit(f, bytes[bytes.len() - right / 2 - 1] & 0x0f)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "30673d207830b43dabf8f405b20560bcd1335031b0be4db7d1c6bcbae38f2613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30673d207830b43dabf8f405b20560bcd1335031b0be4db7d1c6bcbae38f2613", kill_on_drop: false }`
[INFO] [stdout] 30673d207830b43dabf8f405b20560bcd1335031b0be4db7d1c6bcbae38f2613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12f0377fba1c2e50d0490726c9f39d28a5700349cf08077517e4fefb04188f65
[INFO] running `Command { std: "docker" "start" "-a" "12f0377fba1c2e50d0490726c9f39d28a5700349cf08077517e4fefb04188f65", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:197:38
[INFO] [stdout]     |
[INFO] [stdout] 197 |             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout]     |                                      ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 197 -             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout] 197 +             Self::fmt_digit(f, bytes[bytes.len() - right / 2 - 1] & 0x0f)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hex_fmt v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:197:38
[INFO] [stdout]     |
[INFO] [stdout] 197 |             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout]     |                                      ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 197 -             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout] 197 +             Self::fmt_digit(f, bytes[bytes.len() - right / 2 - 1] & 0x0f)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "12f0377fba1c2e50d0490726c9f39d28a5700349cf08077517e4fefb04188f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f0377fba1c2e50d0490726c9f39d28a5700349cf08077517e4fefb04188f65", kill_on_drop: false }`
[INFO] [stdout] 12f0377fba1c2e50d0490726c9f39d28a5700349cf08077517e4fefb04188f65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4808bfc1a54ec3730bf8e6f08abd9b6470c1d838bff4f148ad24a221189b7617
[INFO] running `Command { std: "docker" "start" "-a" "4808bfc1a54ec3730bf8e6f08abd9b6470c1d838bff4f148ad24a221189b7617", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:197:38
[INFO] [stdout] running 1 test
[INFO] [stderr]     |
[INFO] [stdout] test tests::test_fmt ... ok
[INFO] [stderr] 197 |             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout] 
[INFO] [stderr]     |                                      ^                           ^
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 197 -             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stderr] 197 +             Self::fmt_digit(f, bytes[bytes.len() - right / 2 - 1] & 0x0f)?;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `hex_fmt` (lib) generated 1 warning (run `cargo fix --lib -p hex_fmt` to apply 1 suggestion)
[INFO] [stderr] warning: `hex_fmt` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hex_fmt-e4730dff9cde903d)
[INFO] [stderr]    Doc-tests hex_fmt
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/lib.rs:197:38
[INFO] [stderr]     |
[INFO] [stderr] 197 |             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stderr]     |                                      ^                           ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 197 -             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stderr] 197 +             Self::fmt_digit(f, bytes[bytes.len() - right / 2 - 1] & 0x0f)?;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4808bfc1a54ec3730bf8e6f08abd9b6470c1d838bff4f148ad24a221189b7617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4808bfc1a54ec3730bf8e6f08abd9b6470c1d838bff4f148ad24a221189b7617", kill_on_drop: false }`
[INFO] [stdout] 4808bfc1a54ec3730bf8e6f08abd9b6470c1d838bff4f148ad24a221189b7617