[INFO] updating cached repository https://github.com/ernsttm/mapper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d35eaa090f4cbef4cd06356569dfaeecb9494720
[INFO] testing ernsttm/mapper against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fernsttm%2Fmapper" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ernsttm/mapper on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ernsttm/mapper
[INFO] finished tweaking git repo https://github.com/ernsttm/mapper
[INFO] tweaked toml for git repo https://github.com/ernsttm/mapper written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ernsttm/mapper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d393f567159f35952fe007d6ddc9b9b40eb60e09857fd60000aadb0bfb78a26f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d393f567159f35952fe007d6ddc9b9b40eb60e09857fd60000aadb0bfb78a26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d393f567159f35952fe007d6ddc9b9b40eb60e09857fd60000aadb0bfb78a26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d393f567159f35952fe007d6ddc9b9b40eb60e09857fd60000aadb0bfb78a26f", kill_on_drop: false }`
[INFO] [stdout] d393f567159f35952fe007d6ddc9b9b40eb60e09857fd60000aadb0bfb78a26f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6188e6d7835f4e52fb418530e971337a41a4acc6abcb17907e15532dccca1b84
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6188e6d7835f4e52fb418530e971337a41a4acc6abcb17907e15532dccca1b84", kill_on_drop: false }`
[INFO] [stderr]    Compiling placer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:169:37
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn parse(config: &Config) -> Result<(Problem), Box<dyn Error>> {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:256:39
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn run(config: &Config) -> Result<(usize), Box<dyn Error>> {
[INFO] [stdout]     |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     for x in 0..num_cells {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |     for x in 0..chip_info[2] {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/lib.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let offset = prob.static_cells.len();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:261:9
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let mut count = 0;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_count` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cell`
[INFO] [stdout]    --> src/lib.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     for cell in floating_cells.iter() {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "6188e6d7835f4e52fb418530e971337a41a4acc6abcb17907e15532dccca1b84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6188e6d7835f4e52fb418530e971337a41a4acc6abcb17907e15532dccca1b84", kill_on_drop: false }`
[INFO] [stdout] 6188e6d7835f4e52fb418530e971337a41a4acc6abcb17907e15532dccca1b84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95fc331360920c107d04f2bd1db5fb2c24c3e05c62b1464a687c1d2f7062b909
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "95fc331360920c107d04f2bd1db5fb2c24c3e05c62b1464a687c1d2f7062b909", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:169:37
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn parse(config: &Config) -> Result<(Problem), Box<dyn Error>> {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling placer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:256:39
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn run(config: &Config) -> Result<(usize), Box<dyn Error>> {
[INFO] [stdout]     |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     for x in 0..num_cells {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |     for x in 0..chip_info[2] {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/lib.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let offset = prob.static_cells.len();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:261:9
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let mut count = 0;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_count` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cell`
[INFO] [stdout]    --> src/lib.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     for cell in floating_cells.iter() {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:169:37
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn parse(config: &Config) -> Result<(Problem), Box<dyn Error>> {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:256:39
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn run(config: &Config) -> Result<(usize), Box<dyn Error>> {
[INFO] [stdout]     |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     for x in 0..num_cells {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lib.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |     for x in 0..chip_info[2] {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/lib.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let offset = prob.static_cells.len();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:261:9
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let mut count = 0;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_count` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cell`
[INFO] [stdout]    --> src/lib.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     for cell in floating_cells.iter() {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "95fc331360920c107d04f2bd1db5fb2c24c3e05c62b1464a687c1d2f7062b909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95fc331360920c107d04f2bd1db5fb2c24c3e05c62b1464a687c1d2f7062b909", kill_on_drop: false }`
[INFO] [stdout] 95fc331360920c107d04f2bd1db5fb2c24c3e05c62b1464a687c1d2f7062b909
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 56657e521e56da252758a1585afa8518d53bd75b0f349f5ecab3d5943ee645c2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "56657e521e56da252758a1585afa8518d53bd75b0f349f5ecab3d5943ee645c2", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:169:37
[INFO] [stderr]     |
[INFO] [stderr] 169 | fn parse(config: &Config) -> Result<(Problem), Box<dyn Error>> {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:256:39
[INFO] [stderr]     |
[INFO] [stderr] 256 | pub fn run(config: &Config) -> Result<(usize), Box<dyn Error>> {
[INFO] [stderr]     |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |     for x in 0..num_cells {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:181:9
[INFO] [stderr]     |
[INFO] [stderr] 181 |     for x in 0..chip_info[2] {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/lib.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |     let offset = prob.static_cells.len();
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `count` is assigned to, but never used
[INFO] [stderr]    --> src/lib.rs:261:9
[INFO] [stderr]     |
[INFO] [stderr] 261 |     let mut count = 0;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_count` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]    --> src/lib.rs:262:9
[INFO] [stderr]     |
[INFO] [stderr] 262 |     for cell in floating_cells.iter() {
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:169:37
[INFO] [stderr]     |
[INFO] [stderr] 169 | fn parse(config: &Config) -> Result<(Problem), Box<dyn Error>> {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:256:39
[INFO] [stderr]     |
[INFO] [stderr] 256 | pub fn run(config: &Config) -> Result<(usize), Box<dyn Error>> {
[INFO] [stderr]     |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |     for x in 0..num_cells {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/lib.rs:181:9
[INFO] [stderr]     |
[INFO] [stderr] 181 |     for x in 0..chip_info[2] {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/lib.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |     let offset = prob.static_cells.len();
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `count` is assigned to, but never used
[INFO] [stderr]    --> src/lib.rs:261:9
[INFO] [stderr]     |
[INFO] [stderr] 261 |     let mut count = 0;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_count` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]    --> src/lib.rs:262:9
[INFO] [stderr]     |
[INFO] [stderr] 262 |     for cell in floating_cells.iter() {
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/placer-9205fec11f9b2f61
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::test5 ... ignored
[INFO] [stdout] test tests::valid_input ... ok
[INFO] [stdout] test tests::test2 ... ok
[INFO] [stdout] test tests::test1 ... ok
[INFO] [stdout] test tests::test3 ... ok
[INFO] [stdout] test tests::too_few_arguments ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/placer-61df0360e278aa42
[INFO] [stdout] test tests::test4 ... ok
[INFO] [stderr]    Doc-tests placer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:169:37
[INFO] [stderr]     |
[INFO] [stderr] 169 | fn parse(config: &Config) -> Result<(Problem), Box<dyn Error>> {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:256:39
[INFO] [stderr]     |
[INFO] [stderr] 256 | pub fn run(config: &Config) -> Result<(usize), Box<dyn Error>> {
[INFO] [stderr]     |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "56657e521e56da252758a1585afa8518d53bd75b0f349f5ecab3d5943ee645c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56657e521e56da252758a1585afa8518d53bd75b0f349f5ecab3d5943ee645c2", kill_on_drop: false }`
[INFO] [stdout] 56657e521e56da252758a1585afa8518d53bd75b0f349f5ecab3d5943ee645c2