[INFO] cloning repository https://github.com/FauxFaux/quadrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FauxFaux/quadrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fquadrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fquadrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5e69a4ae550be1851ba81cd2b90a2c6dc9275c1
[INFO] checking FauxFaux/quadrs against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fquadrs" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FauxFaux/quadrs on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FauxFaux/quadrs
[INFO] finished tweaking git repo https://github.com/FauxFaux/quadrs
[INFO] tweaked toml for git repo https://github.com/FauxFaux/quadrs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/FauxFaux/quadrs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strength_reduce v0.2.3
[INFO] [stderr]   Downloaded rustfft v3.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 628acfa7f09c3df4108987a94f0c43de8452b33b1f5a03a7f1225123381fb004
[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" "628acfa7f09c3df4108987a94f0c43de8452b33b1f5a03a7f1225123381fb004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "628acfa7f09c3df4108987a94f0c43de8452b33b1f5a03a7f1225123381fb004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "628acfa7f09c3df4108987a94f0c43de8452b33b1f5a03a7f1225123381fb004", kill_on_drop: false }`
[INFO] [stdout] 628acfa7f09c3df4108987a94f0c43de8452b33b1f5a03a7f1225123381fb004
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c807cbb6076b8e1eab36f379ddacd5e1173c4255a06fba31a91f3d95e054a8c8
[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" "c807cbb6076b8e1eab36f379ddacd5e1173c4255a06fba31a91f3d95e054a8c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking transpose v0.1.0
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking piston-viewport v0.3.0
[INFO] [stderr]     Checking miniz_oxide v0.4.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]     Checking stb_truetype v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking wayland-sys v0.20.12
[INFO] [stderr]     Checking wayland-commons v0.20.12
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking daggy v0.5.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking rayon-core v1.8.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking rusttype v0.5.2
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]    Compiling glium v0.22.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rustfft v3.0.1
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking octagon v0.1.0 (/opt/rustwide/workdir/octagon)
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stdout] warning: function is never used: `decode`
[INFO] [stdout]  --> octagon/src/bits.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn decode(data: &[bool]) -> String {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fmt`
[INFO] [stdout]    --> octagon/src/bits.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn fmt(bits: &[bool]) -> String {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling conrod_derive v0.1.2
[INFO] [stderr]     Checking smithay-client-toolkit v0.2.6
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking winit v0.16.2
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking conrod v0.61.1
[INFO] [stderr]     Checking quadrs v0.1.0 (/opt/rustwide/workdir/tool)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.46s
[INFO] running `Command { std: "docker" "inspect" "c807cbb6076b8e1eab36f379ddacd5e1173c4255a06fba31a91f3d95e054a8c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c807cbb6076b8e1eab36f379ddacd5e1173c4255a06fba31a91f3d95e054a8c8", kill_on_drop: false }`
[INFO] [stdout] c807cbb6076b8e1eab36f379ddacd5e1173c4255a06fba31a91f3d95e054a8c8