[INFO] cloning repository https://github.com/lesacar/rust_fluids_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lesacar/rust_fluids_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesacar%2Frust_fluids_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesacar%2Frust_fluids_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efa5d2b5b6b0cfd48c4fd4a547ec1bbb602ff234
[INFO] checking lesacar/rust_fluids_test against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesacar%2Frust_fluids_test" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lesacar/rust_fluids_test 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/lesacar/rust_fluids_test
[INFO] finished tweaking git repo https://github.com/lesacar/rust_fluids_test
[INFO] tweaked toml for git repo https://github.com/lesacar/rust_fluids_test written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lesacar/rust_fluids_test 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 crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo-profiler v0.1.6
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] [stderr]   Downloaded ndarray v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 }`
[INFO] [stdout] 26603e16b59effae0e3bc3efb984686db732dacf94d57a12ecccfe56076d415a
[INFO] running `Command { std: "docker" "start" "-a" "26603e16b59effae0e3bc3efb984686db732dacf94d57a12ecccfe56076d415a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26603e16b59effae0e3bc3efb984686db732dacf94d57a12ecccfe56076d415a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26603e16b59effae0e3bc3efb984686db732dacf94d57a12ecccfe56076d415a", kill_on_drop: false }`
[INFO] [stdout] 26603e16b59effae0e3bc3efb984686db732dacf94d57a12ecccfe56076d415a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 }`
[INFO] [stdout] 9224d89fcb74d0e04197a72e33dfa110efff27b57cd0d4c156cec32818c72cee
[INFO] running `Command { std: "docker" "start" "-a" "9224d89fcb74d0e04197a72e33dfa110efff27b57cd0d4c156cec32818c72cee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling ndarray v0.5.2
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling raylib-sys v3.7.0
[INFO] [stderr]     Checking cargo-profiler v0.1.6
[INFO] [stderr]     Checking raylib v3.7.0
[INFO] [stderr]     Checking rust_liqsim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `GetScreenHeight`, `GetScreenWidth`, `IsMouseButtonDown`, `ToggleFullscreen`
[INFO] [stdout]  --> src/main.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use raylib::{ffi::{IsMouseButtonDown, IsKeyPressed, ToggleFullscreen, GetScreenWidth, GetScreenHeight, KeyboardKey::*, SetTargetFPS, GetF...
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^                ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `raylib::consts::*`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use raylib::consts::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `GetScreenHeight`, `GetScreenWidth`, `IsMouseButtonDown`, `ToggleFullscreen`
[INFO] [stdout]  --> src/main.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use raylib::{ffi::{IsMouseButtonDown, IsKeyPressed, ToggleFullscreen, GetScreenWidth, GetScreenHeight, KeyboardKey::*, SetTargetFPS, GetF...
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^                ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `raylib::consts::*`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use raylib::consts::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.39s
[INFO] running `Command { std: "docker" "inspect" "9224d89fcb74d0e04197a72e33dfa110efff27b57cd0d4c156cec32818c72cee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9224d89fcb74d0e04197a72e33dfa110efff27b57cd0d4c156cec32818c72cee", kill_on_drop: false }`
[INFO] [stdout] 9224d89fcb74d0e04197a72e33dfa110efff27b57cd0d4c156cec32818c72cee
[INFO] checking lesacar/rust_fluids_test against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesacar%2Frust_fluids_test" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lesacar/rust_fluids_test 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/lesacar/rust_fluids_test
[INFO] finished tweaking git repo https://github.com/lesacar/rust_fluids_test
[INFO] tweaked toml for git repo https://github.com/lesacar/rust_fluids_test written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lesacar/rust_fluids_test 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f0c9cab7c7744d6c126956a0aa1e379cfdf3eb1e15dc79250a9d8aa204cc650b
[INFO] running `Command { std: "docker" "start" "-a" "f0c9cab7c7744d6c126956a0aa1e379cfdf3eb1e15dc79250a9d8aa204cc650b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0c9cab7c7744d6c126956a0aa1e379cfdf3eb1e15dc79250a9d8aa204cc650b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0c9cab7c7744d6c126956a0aa1e379cfdf3eb1e15dc79250a9d8aa204cc650b", kill_on_drop: false }`
[INFO] [stdout] f0c9cab7c7744d6c126956a0aa1e379cfdf3eb1e15dc79250a9d8aa204cc650b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2b91c4da5a632d08e476b174760cb26f390330aba789b8a1b7fed316db7c6058
[INFO] running `Command { std: "docker" "start" "-a" "2b91c4da5a632d08e476b174760cb26f390330aba789b8a1b7fed316db7c6058", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling ndarray v0.5.2
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.25/src/json.rs:1387:20
[INFO] [stdout]      |
[INFO] [stdout] 1387 |             _ => { panic!(); }
[INFO] [stdout]      |                    ^^^^^^^^ cannot infer type
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.43
[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 `rustc-serialize` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.1.80/src/exec.rs:726:13
[INFO] [stdout]     |
[INFO] [stdout] 726 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 727 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 728 | |                 &self.cache,
[INFO] [stdout] 729 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 736 | |                 Quit => return Some(Quit),
[INFO] [stdout] 737 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "2b91c4da5a632d08e476b174760cb26f390330aba789b8a1b7fed316db7c6058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b91c4da5a632d08e476b174760cb26f390330aba789b8a1b7fed316db7c6058", kill_on_drop: false }`
[INFO] [stdout] 2b91c4da5a632d08e476b174760cb26f390330aba789b8a1b7fed316db7c6058