[INFO] fetching crate hex_fmt 0.3.0...
[INFO] testing hex_fmt-0.3.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate hex_fmt 0.3.0 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hex_fmt 0.3.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1633d488655b7bd1abe8cd6217f8bc37eda8992b799a32f63a4738c21c5506f
[INFO] running `Command { std: "docker" "start" "-a" "e1633d488655b7bd1abe8cd6217f8bc37eda8992b799a32f63a4738c21c5506f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1633d488655b7bd1abe8cd6217f8bc37eda8992b799a32f63a4738c21c5506f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1633d488655b7bd1abe8cd6217f8bc37eda8992b799a32f63a4738c21c5506f", kill_on_drop: false }`
[INFO] [stdout] e1633d488655b7bd1abe8cd6217f8bc37eda8992b799a32f63a4738c21c5506f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfb591bc2a4073e66a9f24bd4f252188a5764dcb76992af5561c39f3a698ca90
[INFO] running `Command { std: "docker" "start" "-a" "dfb591bc2a4073e66a9f24bd4f252188a5764dcb76992af5561c39f3a698ca90", 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)]` (part of `#[warn(unused)]`) 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 0.12s
[INFO] running `Command { std: "docker" "inspect" "dfb591bc2a4073e66a9f24bd4f252188a5764dcb76992af5561c39f3a698ca90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfb591bc2a4073e66a9f24bd4f252188a5764dcb76992af5561c39f3a698ca90", kill_on_drop: false }`
[INFO] [stdout] dfb591bc2a4073e66a9f24bd4f252188a5764dcb76992af5561c39f3a698ca90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccac0a55781df59c4a263d3639eac0da34c9e234a25f1dd0c239ef6551900092
[INFO] running `Command { std: "docker" "start" "-a" "ccac0a55781df59c4a263d3639eac0da34c9e234a25f1dd0c239ef6551900092", 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)]` (part of `#[warn(unused)]`) 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] [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)]` (part of `#[warn(unused)]`) 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 0.33s
[INFO] running `Command { std: "docker" "inspect" "ccac0a55781df59c4a263d3639eac0da34c9e234a25f1dd0c239ef6551900092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccac0a55781df59c4a263d3639eac0da34c9e234a25f1dd0c239ef6551900092", kill_on_drop: false }`
[INFO] [stdout] ccac0a55781df59c4a263d3639eac0da34c9e234a25f1dd0c239ef6551900092
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04f7d4ef2a526483d0fe42aa8cbfaa18599c34cf1fbbd466df0d26747c6ab56c
[INFO] running `Command { std: "docker" "start" "-a" "04f7d4ef2a526483d0fe42aa8cbfaa18599c34cf1fbbd466df0d26747c6ab56c", kill_on_drop: false }`
[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)]` (part of `#[warn(unused)]`) 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 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hex_fmt-198f3662b875f99b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests hex_fmt
[INFO] [stdout] test tests::test_fmt ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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)]` (part of `#[warn(unused)]`) 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 0.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04f7d4ef2a526483d0fe42aa8cbfaa18599c34cf1fbbd466df0d26747c6ab56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f7d4ef2a526483d0fe42aa8cbfaa18599c34cf1fbbd466df0d26747c6ab56c", kill_on_drop: false }`
[INFO] [stdout] 04f7d4ef2a526483d0fe42aa8cbfaa18599c34cf1fbbd466df0d26747c6ab56c
