[INFO] updating cached repository https://github.com/usbalbin/liquid_sim
[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] f7c3e23772460763530bd0eada322720d2c19aff
[INFO] checking usbalbin/liquid_sim against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fusbalbin%2Fliquid_sim" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/usbalbin/liquid_sim on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/usbalbin/liquid_sim
[INFO] finished tweaking git repo https://github.com/usbalbin/liquid_sim
[INFO] tweaked toml for git repo https://github.com/usbalbin/liquid_sim written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/usbalbin/liquid_sim already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a91196b6b4f4b66052f8063340ee767069c2034171817d24bd60f6f44daf80e
[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" "1a91196b6b4f4b66052f8063340ee767069c2034171817d24bd60f6f44daf80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a91196b6b4f4b66052f8063340ee767069c2034171817d24bd60f6f44daf80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a91196b6b4f4b66052f8063340ee767069c2034171817d24bd60f6f44daf80e", kill_on_drop: false }`
[INFO] [stdout] 1a91196b6b4f4b66052f8063340ee767069c2034171817d24bd60f6f44daf80e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6b51f6688c0154c5a4527d2e553623b2531573ade010557a7bcb28c7985aedf2
[INFO] running `Command { std: "docker" "start" "-a" "6b51f6688c0154c5a4527d2e553623b2531573ade010557a7bcb28c7985aedf2", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling num-traits v0.1.41
[INFO] [stderr]    Compiling khronos_api v2.0.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling x11-dl v2.17.2
[INFO] [stderr]    Compiling wayland-scanner v0.9.10
[INFO] [stderr]     Checking libloading v0.4.3
[INFO] [stderr]    Compiling gl_generator v0.7.0
[INFO] [stderr]     Checking dlib v0.4.0
[INFO] [stderr]     Checking wayland-sys v0.12.5
[INFO] [stderr]    Compiling rand v0.3.20
[INFO] [stderr]    Compiling wayland-client v0.9.10
[INFO] [stderr]     Checking wayland-client v0.12.5
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking shared_library v0.1.8
[INFO] [stderr]     Checking backtrace-sys v0.1.16
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling glutin v0.11.0
[INFO] [stderr]    Compiling glium v0.19.0
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]     Checking wayland-protocols v0.12.5
[INFO] [stderr]     Checking wayland-kbd v0.13.1
[INFO] [stderr]     Checking wayland-window v0.13.2
[INFO] [stderr]     Checking winit v0.9.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.9.10
[INFO] [stderr]     Checking liquid_sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/main.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let r = to_u8(128.0 + f.0);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/main.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let g = to_u8(128.0 + f.1);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `neg`
[INFO] [stdout]    --> src/main.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn neg(a: &(f32, f32)) -> (f32, f32) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/main.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let r = to_u8(128.0 + f.0);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/main.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let g = to_u8(128.0 + f.1);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `neg`
[INFO] [stdout]    --> src/main.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn neg(a: &(f32, f32)) -> (f32, f32) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "6b51f6688c0154c5a4527d2e553623b2531573ade010557a7bcb28c7985aedf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b51f6688c0154c5a4527d2e553623b2531573ade010557a7bcb28c7985aedf2", kill_on_drop: false }`
[INFO] [stdout] 6b51f6688c0154c5a4527d2e553623b2531573ade010557a7bcb28c7985aedf2