[INFO] cloning repository https://github.com/katharostech/amethyst-ecs-benchmarks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/katharostech/amethyst-ecs-benchmarks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkatharostech%2Famethyst-ecs-benchmarks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkatharostech%2Famethyst-ecs-benchmarks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c718d53eb8e39c1c19254b64742331ed4e033ca
[INFO] checking katharostech/amethyst-ecs-benchmarks against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkatharostech%2Famethyst-ecs-benchmarks" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/katharostech/amethyst-ecs-benchmarks on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/katharostech/amethyst-ecs-benchmarks
[INFO] finished tweaking git repo https://github.com/katharostech/amethyst-ecs-benchmarks
[INFO] tweaked toml for git repo https://github.com/katharostech/amethyst-ecs-benchmarks written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/katharostech/amethyst-ecs-benchmarks 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/amethyst/amethyst`
[INFO] [stderr]     Updating git repository `https://github.com/TyOverby/flame.git`
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[INFO] [stderr]     Updating git repository `https://github.com/katharostech/legion.git`
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[INFO] [stderr]   Downloaded flamer v0.3.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "b4732aa9dcf0315f0db6b1898b743a0c7678a3f18be86ddf271a534c78e1e294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4732aa9dcf0315f0db6b1898b743a0c7678a3f18be86ddf271a534c78e1e294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4732aa9dcf0315f0db6b1898b743a0c7678a3f18be86ddf271a534c78e1e294", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "920dde702f26b813f3e7fd00cddd7da05aeba3f903462fb7947d8b617e76bcd1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling env_logger v0.6.2
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[INFO] [stderr]    Compiling serde_derive v1.0.98
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[INFO] [stderr]    Compiling getset v0.0.7
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[INFO] [stderr]    Compiling alga_derive v0.9.1
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[INFO] [stderr]     Checking specs v0.15.0
[INFO] [stderr]     Checking specs-hierarchy v0.5.1
[INFO] [stderr]     Checking erased-serde v0.3.9
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking bstr v0.2.6
[INFO] [stderr]     Checking alga v0.9.1
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[INFO] [stderr]     Checking slog-scope v4.1.2
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[INFO] [stderr]     Checking flame v0.2.1-pre (https://github.com/TyOverby/flame.git#ef090438)
[INFO] [stderr]     Checking slog-stdlog v3.0.5
[INFO] [stderr]     Checking legion v0.1.1 (https://github.com/katharostech/legion.git?branch=ktech-updates#e835e97b)
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]    Compiling flame v0.2.2
[INFO] [stderr]    Compiling flamer v0.3.0
[INFO] [stderr]     Checking amethyst_core v0.7.0 (https://github.com/amethyst/amethyst#af3bf68a)
[INFO] [stderr]     Checking amethyst-ecs-benchmarks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> benches/specs.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 for (i, e) in ents.iter().enumerate() {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.12s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "920dde702f26b813f3e7fd00cddd7da05aeba3f903462fb7947d8b617e76bcd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "920dde702f26b813f3e7fd00cddd7da05aeba3f903462fb7947d8b617e76bcd1", kill_on_drop: false }`
[INFO] [stdout] 920dde702f26b813f3e7fd00cddd7da05aeba3f903462fb7947d8b617e76bcd1
[INFO] checking katharostech/amethyst-ecs-benchmarks against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkatharostech%2Famethyst-ecs-benchmarks" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/katharostech/amethyst-ecs-benchmarks on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/katharostech/amethyst-ecs-benchmarks
[INFO] finished tweaking git repo https://github.com/katharostech/amethyst-ecs-benchmarks
[INFO] tweaked toml for git repo https://github.com/katharostech/amethyst-ecs-benchmarks written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/katharostech/amethyst-ecs-benchmarks 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c537ef48fbf807811988232a49411492b9657cb4703cb7f35041aa28449700de
[INFO] running `Command { std: "docker" "start" "-a" "c537ef48fbf807811988232a49411492b9657cb4703cb7f35041aa28449700de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c537ef48fbf807811988232a49411492b9657cb4703cb7f35041aa28449700de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c537ef48fbf807811988232a49411492b9657cb4703cb7f35041aa28449700de", kill_on_drop: false }`
[INFO] [stdout] c537ef48fbf807811988232a49411492b9657cb4703cb7f35041aa28449700de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ca6fa9ab7bc15b7076f1508b484aa15a47e7406f74385b4a4b3955b0426cc9f
[INFO] running `Command { std: "docker" "start" "-a" "3ca6fa9ab7bc15b7076f1508b484aa15a47e7406f74385b4a4b3955b0426cc9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling nonzero_signed v1.0.3
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking hibitset v0.6.2
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling names v0.11.0
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.2.1/src/exec.rs:797:13
[INFO] [stdout]     |
[INFO] [stdout] 797 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 798 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 799 | |                 self.cache,
[INFO] [stdout] 800 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 811 | |                 Quit => return Some(Quit),
[INFO] [stdout] 812 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking matrixmultiply v0.2.2
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3ca6fa9ab7bc15b7076f1508b484aa15a47e7406f74385b4a4b3955b0426cc9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca6fa9ab7bc15b7076f1508b484aa15a47e7406f74385b4a4b3955b0426cc9f", kill_on_drop: false }`
[INFO] [stdout] 3ca6fa9ab7bc15b7076f1508b484aa15a47e7406f74385b4a4b3955b0426cc9f