[INFO] cloning repository https://github.com/andrew-pa/truchet-tiles
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrew-pa/truchet-tiles" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-pa%2Ftruchet-tiles", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-pa%2Ftruchet-tiles'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28d4b6602c20b69d62cc4d7df9329ab7ffca3454
[INFO] checking andrew-pa/truchet-tiles against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-pa%2Ftruchet-tiles" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrew-pa/truchet-tiles on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andrew-pa/truchet-tiles
[INFO] finished tweaking git repo https://github.com/andrew-pa/truchet-tiles
[INFO] tweaked toml for git repo https://github.com/andrew-pa/truchet-tiles written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/andrew-pa/truchet-tiles 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fa9fae58deecfbdb4ed50b1515b1e1cab7e0401a5571b3f66a7c78bb87fad0c
[INFO] running `Command { std: "docker" "start" "-a" "1fa9fae58deecfbdb4ed50b1515b1e1cab7e0401a5571b3f66a7c78bb87fad0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fa9fae58deecfbdb4ed50b1515b1e1cab7e0401a5571b3f66a7c78bb87fad0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa9fae58deecfbdb4ed50b1515b1e1cab7e0401a5571b3f66a7c78bb87fad0c", kill_on_drop: false }`
[INFO] [stdout] 1fa9fae58deecfbdb4ed50b1515b1e1cab7e0401a5571b3f66a7c78bb87fad0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ddbd5c14897b645f69e3c14b54654030cf500df40bbbfc585a88dd0a5af7b25
[INFO] running `Command { std: "docker" "start" "-a" "0ddbd5c14897b645f69e3c14b54654030cf500df40bbbfc585a88dd0a5af7b25", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking png v0.16.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]     Checking image v0.23.4
[INFO] [stderr]     Checking truchet-tiles v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Hsva`
[INFO] [stdout]  --> src/main.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | use palette::{Srgba, Srgb, LinSrgba, LinSrgb, Hsva, Hsv, Mix};
[INFO] [stdout]   |                                               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hsva`
[INFO] [stdout]  --> src/main.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | use palette::{Srgba, Srgb, LinSrgba, LinSrgb, Hsva, Hsv, Mix};
[INFO] [stdout]   |                                               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.64s
[INFO] running `Command { std: "docker" "inspect" "0ddbd5c14897b645f69e3c14b54654030cf500df40bbbfc585a88dd0a5af7b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ddbd5c14897b645f69e3c14b54654030cf500df40bbbfc585a88dd0a5af7b25", kill_on_drop: false }`
[INFO] [stdout] 0ddbd5c14897b645f69e3c14b54654030cf500df40bbbfc585a88dd0a5af7b25
[INFO] checking andrew-pa/truchet-tiles against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-pa%2Ftruchet-tiles" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrew-pa/truchet-tiles on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andrew-pa/truchet-tiles
[INFO] finished tweaking git repo https://github.com/andrew-pa/truchet-tiles
[INFO] tweaked toml for git repo https://github.com/andrew-pa/truchet-tiles written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/andrew-pa/truchet-tiles 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5e443810dc33f15be6c25892a159fc7b99e05c93606b01ca73d256c1ec8a552
[INFO] running `Command { std: "docker" "start" "-a" "b5e443810dc33f15be6c25892a159fc7b99e05c93606b01ca73d256c1ec8a552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5e443810dc33f15be6c25892a159fc7b99e05c93606b01ca73d256c1ec8a552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5e443810dc33f15be6c25892a159fc7b99e05c93606b01ca73d256c1ec8a552", kill_on_drop: false }`
[INFO] [stdout] b5e443810dc33f15be6c25892a159fc7b99e05c93606b01ca73d256c1ec8a552
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8b19a978625012123620a140f1694bb9ac21d6424e49823db189ed590cbed58
[INFO] running `Command { std: "docker" "start" "-a" "d8b19a978625012123620a140f1694bb9ac21d6424e49823db189ed590cbed58", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking png v0.16.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]     Checking image v0.23.4
[INFO] [stderr]     Checking truchet-tiles v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Hsva`
[INFO] [stdout]  --> src/main.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | use palette::{Srgba, Srgb, LinSrgba, LinSrgb, Hsva, Hsv, Mix};
[INFO] [stdout]   |                                               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hsva`
[INFO] [stdout]  --> src/main.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | use palette::{Srgba, Srgb, LinSrgba, LinSrgb, Hsva, Hsv, Mix};
[INFO] [stdout]   |                                               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.23s
[INFO] running `Command { std: "docker" "inspect" "d8b19a978625012123620a140f1694bb9ac21d6424e49823db189ed590cbed58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8b19a978625012123620a140f1694bb9ac21d6424e49823db189ed590cbed58", kill_on_drop: false }`
[INFO] [stdout] d8b19a978625012123620a140f1694bb9ac21d6424e49823db189ed590cbed58