[INFO] fetching crate queens-rock 0.1.1...
[INFO] testing queens-rock-0.1.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate queens-rock 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate queens-rock 0.1.1
[INFO] finished tweaking crates.io crate queens-rock 0.1.1
[INFO] tweaked toml for crates.io crate queens-rock 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate queens-rock 0.1.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate queens-rock 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded image v0.22.1
[INFO] [stderr]   Downloaded num-derive v0.2.5
[INFO] [stderr]   Downloaded crossbeam-deque v0.6.3
[INFO] [stderr]   Downloaded memoffset v0.5.1
[INFO] [stderr]   Downloaded lazy_static v1.3.0
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[INFO] [stderr]   Downloaded adler32 v1.0.3
[INFO] [stderr]   Downloaded bitflags v1.1.0
[INFO] [stderr]   Downloaded num_cpus v1.10.1
[INFO] [stderr]   Downloaded either v1.5.2
[INFO] [stderr]   Downloaded color_quant v1.0.1
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded arrayvec v0.4.11
[INFO] [stderr]   Downloaded gif v0.10.2
[INFO] [stderr]   Downloaded tiff v0.3.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3
[INFO] running `Command { std: "docker" "start" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling queens-rock v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/gf256.rs:90:30
[INFO] [stdout]    |
[INFO] [stdout] 90 |                     self.exp[((255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255)];
[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] 90 -                     self.exp[((255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255)];
[INFO] [stdout] 90 +                     self.exp[(255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255];
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/gf256.rs:114:39
[INFO] [stdout]     |
[INFO] [stdout] 114 |                     *item ^= self.exp[((self.log[c as usize] as usize + i * j) % self.p)];
[INFO] [stdout]     |                                       ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     *item ^= self.exp[((self.log[c as usize] as usize + i * j) % self.p)];
[INFO] [stdout] 114 +                     *item ^= self.exp[(self.log[c as usize] as usize + i * j) % self.p];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/gf256.rs:192:22
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     [((self.log[*v as usize] as usize + log_c as usize) % self.p as usize)];
[INFO] [stdout]     |                      ^                                                                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 192 -                     [((self.log[*v as usize] as usize + log_c as usize) % self.p as usize)];
[INFO] [stdout] 192 +                     [(self.log[*v as usize] as usize + log_c as usize) % self.p as usize];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/pixels.rs:209:26
[INFO] [stdout]     |
[INFO] [stdout] 209 |             for i in row[(left..=right)].iter_mut() {
[INFO] [stdout]     |                          ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 209 -             for i in row[(left..=right)].iter_mut() {
[INFO] [stdout] 209 +             for i in row[left..=right].iter_mut() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ring` and `stone` are never read
[INFO] [stdout]   --> src/identify.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Capstone {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 22 |     pub ring: Rc<RefCell<Region>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |     pub stone: Rc<RefCell<Region>>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Capstone` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bit_vec.rs:186:17
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub fn iter(&self) -> Iter<E> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub fn iter(&self) -> Iter<'_, E> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling gif v0.10.2
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/gf256.rs:90:30
[INFO] [stdout]    |
[INFO] [stdout] 90 |                     self.exp[((255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255)];
[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] 90 -                     self.exp[((255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255)];
[INFO] [stdout] 90 +                     self.exp[(255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255];
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/gf256.rs:114:39
[INFO] [stdout]     |
[INFO] [stdout] 114 |                     *item ^= self.exp[((self.log[c as usize] as usize + i * j) % self.p)];
[INFO] [stdout]     |                                       ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     *item ^= self.exp[((self.log[c as usize] as usize + i * j) % self.p)];
[INFO] [stdout] 114 +                     *item ^= self.exp[(self.log[c as usize] as usize + i * j) % self.p];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/gf256.rs:192:22
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     [((self.log[*v as usize] as usize + log_c as usize) % self.p as usize)];
[INFO] [stdout]     |                      ^                                                                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 192 -                     [((self.log[*v as usize] as usize + log_c as usize) % self.p as usize)];
[INFO] [stdout] 192 +                     [(self.log[*v as usize] as usize + log_c as usize) % self.p as usize];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/pixels.rs:209:26
[INFO] [stdout]     |
[INFO] [stdout] 209 |             for i in row[(left..=right)].iter_mut() {
[INFO] [stdout]     |                          ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 209 -             for i in row[(left..=right)].iter_mut() {
[INFO] [stdout] 209 +             for i in row[left..=right].iter_mut() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ring` and `stone` are never read
[INFO] [stdout]   --> src/identify.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Capstone {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 22 |     pub ring: Rc<RefCell<Region>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |     pub stone: Rc<RefCell<Region>>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Capstone` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bit_vec.rs:186:17
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub fn iter(&self) -> Iter<E> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub fn iter(&self) -> Iter<'_, E> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling png v0.15.0
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling image v0.22.1
[INFO] [stderr]    Compiling queens-rock v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/gf256.rs:90:30
[INFO] [stdout]    |
[INFO] [stdout] 90 |                     self.exp[((255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255)];
[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] 90 -                     self.exp[((255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255)];
[INFO] [stdout] 90 +                     self.exp[(255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255];
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/gf256.rs:114:39
[INFO] [stdout]     |
[INFO] [stdout] 114 |                     *item ^= self.exp[((self.log[c as usize] as usize + i * j) % self.p)];
[INFO] [stdout]     |                                       ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     *item ^= self.exp[((self.log[c as usize] as usize + i * j) % self.p)];
[INFO] [stdout] 114 +                     *item ^= self.exp[(self.log[c as usize] as usize + i * j) % self.p];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/gf256.rs:192:22
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     [((self.log[*v as usize] as usize + log_c as usize) % self.p as usize)];
[INFO] [stdout]     |                      ^                                                                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 192 -                     [((self.log[*v as usize] as usize + log_c as usize) % self.p as usize)];
[INFO] [stdout] 192 +                     [(self.log[*v as usize] as usize + log_c as usize) % self.p as usize];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/pixels.rs:209:26
[INFO] [stdout]     |
[INFO] [stdout] 209 |             for i in row[(left..=right)].iter_mut() {
[INFO] [stdout]     |                          ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 209 -             for i in row[(left..=right)].iter_mut() {
[INFO] [stdout] 209 +             for i in row[left..=right].iter_mut() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `error` and `text` are never read
[INFO] [stdout]   --> examples/scanner.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Code {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 11 |     pub error: Option<String>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 12 |     pub text: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Code` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ring` and `stone` are never read
[INFO] [stdout]   --> src/identify.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Capstone {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 22 |     pub ring: Rc<RefCell<Region>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |     pub stone: Rc<RefCell<Region>>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Capstone` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bit_vec.rs:186:17
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub fn iter(&self) -> Iter<E> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub fn iter(&self) -> Iter<'_, E> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 34.94s
[INFO] running `Command { std: "docker" "inspect" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]   --> src/gf256.rs:90:30
[INFO] [stderr]    |
[INFO] [stderr] 90 |                     self.exp[((255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255)];
[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] 90 -                     self.exp[((255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255)];
[INFO] [stderr] 90 +                     self.exp[(255 + self.log[omega_x] as usize - self.log[sd_x] as usize) % 255];
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/gf256.rs:114:39
[INFO] [stderr]     |
[INFO] [stderr] 114 |                     *item ^= self.exp[((self.log[c as usize] as usize + i * j) % self.p)];
[INFO] [stderr]     |                                       ^                                                ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 114 -                     *item ^= self.exp[((self.log[c as usize] as usize + i * j) % self.p)];
[INFO] [stderr] 114 +                     *item ^= self.exp[(self.log[c as usize] as usize + i * j) % self.p];
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/gf256.rs:192:22
[INFO] [stderr]     |
[INFO] [stderr] 192 |                     [((self.log[*v as usize] as usize + log_c as usize) % self.p as usize)];
[INFO] [stderr]     |                      ^                                                                   ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 192 -                     [((self.log[*v as usize] as usize + log_c as usize) % self.p as usize)];
[INFO] [stderr] 192 +                     [(self.log[*v as usize] as usize + log_c as usize) % self.p as usize];
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/pixels.rs:209:26
[INFO] [stderr]     |
[INFO] [stderr] 209 |             for i in row[(left..=right)].iter_mut() {
[INFO] [stderr]     |                          ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 209 -             for i in row[(left..=right)].iter_mut() {
[INFO] [stderr] 209 +             for i in row[left..=right].iter_mut() {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `ring` and `stone` are never read
[INFO] [stderr]   --> src/identify.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct Capstone {
[INFO] [stderr]    |            -------- fields in this struct
[INFO] [stderr] 22 |     pub ring: Rc<RefCell<Region>>,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 23 |     pub stone: Rc<RefCell<Region>>,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Capstone` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/bit_vec.rs:186:17
[INFO] [stderr]     |
[INFO] [stderr] 186 |     pub fn iter(&self) -> Iter<E> {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 186 |     pub fn iter(&self) -> Iter<'_, E> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `queens-rock` (lib) generated 6 warnings (run `cargo fix --lib -p queens-rock` to apply 5 suggestions)
[INFO] [stderr] warning: fields `error` and `text` are never read
[INFO] [stderr]   --> examples/scanner.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Code {
[INFO] [stderr]    |        ---- fields in this struct
[INFO] [stderr] 11 |     pub error: Option<String>,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 12 |     pub text: Option<String>,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Code` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `queens-rock` (example "scanner") generated 1 warning
[INFO] [stderr] warning: `queens-rock` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/queens_rock-380187bfadbb2da8)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test bit_vec::tests::test_len ... ok
[INFO] [stdout] test bit_vec::tests::test_push_pop ... ok
[INFO] [stdout] test bit_vec::tests::test_bit_iterator ... ok
[INFO] [stdout] test bit_vec::tests::test_iter ... ok
[INFO] [stdout] test bit_vec::tests::test_capacity ... FAILED
[INFO] [stdout] test bit_vec::tests::test_resize ... ok
[INFO] [stdout] test bit_vec::tests::test_bit_order ... ok
[INFO] [stdout] test tests::test ... ok
[INFO] [stdout] test tests::test_scan_ver10 ... ok
[INFO] [stdout] test tests::test_scan ... ok
[INFO] [stdout] test tests::test_scan_multi ... ok
[INFO] [stdout] test tests::test_decode_ver40 ... ok
[INFO] [stdout] test tests::test_decode_damaged ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- bit_vec::tests::test_capacity stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'bit_vec::tests::test_capacity' (1026) panicked at src/bit_vec.rs:269:13:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 64
[INFO] [stdout]  right: 8
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6358f7c71987 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6358f7bd90ea - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x6358f7c70f3b - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x6358f7c70a1f - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6358f7c705c6 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x6358f7c70162 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    6:     0x6358f7c975c1 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    7:     0x6358f7c97579 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    8:     0x6358f7c97a8c - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]    9:     0x6358f7bd8f7b - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   10:     0x6358f7bd8e9a - core[df12db4294e9bfd3]::panicking::assert_failed_inner
[INFO] [stdout]   11:     0x6358f7bda34a - core[df12db4294e9bfd3]::panicking::assert_failed::<usize, usize>
[INFO] [stdout]   12:     0x6358f7bd67ae - <queens_rock[67e1cb070801e05c]::bit_vec::tests::test_capacity::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x6358f7cb022b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   14:     0x6358f7cab83f - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   15:     0x6358f7cab2bc - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x6358f7cc7ecc - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x6358f7c98ed2 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x77a5b2f6edfa - <unknown>
[INFO] [stdout]   19:     0x77a5b30023d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     bit_vec::tests::test_capacity
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 12 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3", kill_on_drop: false }`
[INFO] [stdout] afc38826555b51c3b3649850125b9c976088bc1ee1acba2fc4bd92b6ccddd5a3
