[INFO] fetching crate visioncortex 0.5.0...
[INFO] checking visioncortex-0.5.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate visioncortex 0.5.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate visioncortex 0.5.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate visioncortex 0.5.0
[INFO] finished tweaking crates.io crate visioncortex 0.5.0
[INFO] tweaked toml for crates.io crate visioncortex 0.5.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02d648175b4e0ea1a6f1c5765cbc284cb45a08b6829785d361f421688f234255
[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" "02d648175b4e0ea1a6f1c5765cbc284cb45a08b6829785d361f421688f234255", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02d648175b4e0ea1a6f1c5765cbc284cb45a08b6829785d361f421688f234255", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02d648175b4e0ea1a6f1c5765cbc284cb45a08b6829785d361f421688f234255", kill_on_drop: false }`
[INFO] [stdout] 02d648175b4e0ea1a6f1c5765cbc284cb45a08b6829785d361f421688f234255
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2df3cbe38a3c864ab921b12985846c281842ed995d9d14e6d85cd3792484643
[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" "b2df3cbe38a3c864ab921b12985846c281842ed995d9d14e6d85cd3792484643", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking roots v0.0.6
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking flo_curves v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking visioncortex v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `src_pts`
[INFO] [stdout]   --> src/numeric/perspective.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     src_pts: Vec<f64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dst_pts`
[INFO] [stdout]   --> src/numeric/perspective.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     dst_pts: Vec<f64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_pow_of_four`
[INFO] [stdout]    --> src/sampler.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn is_pow_of_four(n: usize) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pow_of_four`
[INFO] [stdout]    --> src/sampler.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn pow_of_four(mut n: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `src_pts`
[INFO] [stdout]   --> src/numeric/perspective.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     src_pts: Vec<f64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dst_pts`
[INFO] [stdout]   --> src/numeric/perspective.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     dst_pts: Vec<f64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_pow_of_four`
[INFO] [stdout]    --> src/sampler.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn is_pow_of_four(n: usize) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pow_of_four`
[INFO] [stdout]    --> src/sampler.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn pow_of_four(mut n: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.85s
[INFO] running `Command { std: "docker" "inspect" "b2df3cbe38a3c864ab921b12985846c281842ed995d9d14e6d85cd3792484643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2df3cbe38a3c864ab921b12985846c281842ed995d9d14e6d85cd3792484643", kill_on_drop: false }`
[INFO] [stdout] b2df3cbe38a3c864ab921b12985846c281842ed995d9d14e6d85cd3792484643