[INFO] cloning repository https://github.com/Dwscdv3/gamecrab [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dwscdv3/gamecrab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDwscdv3%2Fgamecrab", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDwscdv3%2Fgamecrab'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 81fe76d3928987c6922170955210c156b14531cf [INFO] checking Dwscdv3/gamecrab against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDwscdv3%2Fgamecrab" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Dwscdv3/gamecrab 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/Dwscdv3/gamecrab [INFO] finished tweaking git repo https://github.com/Dwscdv3/gamecrab [INFO] tweaked toml for git repo https://github.com/Dwscdv3/gamecrab written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Dwscdv3/gamecrab 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0ea667a8aa35466c4c9c4a64391dcede30e26a79d455881f0e7261b19baf5163 [INFO] running `Command { std: "docker" "start" "-a" "0ea667a8aa35466c4c9c4a64391dcede30e26a79d455881f0e7261b19baf5163", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0ea667a8aa35466c4c9c4a64391dcede30e26a79d455881f0e7261b19baf5163", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ea667a8aa35466c4c9c4a64391dcede30e26a79d455881f0e7261b19baf5163", kill_on_drop: false }` [INFO] [stdout] 0ea667a8aa35466c4c9c4a64391dcede30e26a79d455881f0e7261b19baf5163 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5176b007095c814b30479592c687b52252fc6baf25cb9d1ac7b4b5ceeb5ed72d [INFO] running `Command { std: "docker" "start" "-a" "5176b007095c814b30479592c687b52252fc6baf25cb9d1ac7b4b5ceeb5ed72d", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.151 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Compiling version-compare v0.1.1 [INFO] [stderr] Compiling signal-hook v0.3.17 [INFO] [stderr] Compiling log v0.4.20 [INFO] [stderr] Compiling xml-rs v0.8.19 [INFO] [stderr] Compiling parking_lot_core v0.9.9 [INFO] [stderr] Checking smallvec v1.11.2 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Compiling sdl2 v0.36.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking bitflags v2.4.1 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Compiling sdl2-sys v0.36.0 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Compiling lock_api v0.4.11 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking mio v0.8.10 [INFO] [stderr] Checking memmap2 v0.9.0 [INFO] [stderr] Compiling gl v0.14.0 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking signal-hook-mio v0.2.3 [INFO] [stderr] Checking crossterm v0.27.0 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking stopwatch v0.0.7 [INFO] [stderr] Checking gamecrab v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `sram_bank` and `dma_transferring` are never read [INFO] [stdout] --> src/core/bus.rs:19:7 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Bus { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | pub sram_bank : u8, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub dma_transferring : bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `sram_bank` and `dma_transferring` are never read [INFO] [stdout] --> src/core/bus.rs:19:7 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Bus { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | pub sram_bank : u8, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub dma_transferring : bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `lock_vram`, `unlock_vram`, `lock_oam`, and `unlock_oam` are never used [INFO] [stdout] --> src/core/bus.rs:101:10 [INFO] [stdout] | [INFO] [stdout] 28 | impl Bus { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 101 | pub fn lock_vram(&mut self) { self.vram_lock = true; } [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 102 | pub fn unlock_vram(&mut self) { self.vram_lock = false; } [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 103 | pub fn lock_oam(&mut self) { self.oam_lock = true; } [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 104 | pub fn unlock_oam(&mut self) { self.oam_lock = false; } [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `lock_vram`, `unlock_vram`, `lock_oam`, and `unlock_oam` are never used [INFO] [stdout] --> src/core/bus.rs:101:10 [INFO] [stdout] | [INFO] [stdout] 28 | impl Bus { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 101 | pub fn lock_vram(&mut self) { self.vram_lock = true; } [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 102 | pub fn unlock_vram(&mut self) { self.vram_lock = false; } [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 103 | pub fn lock_oam(&mut self) { self.oam_lock = true; } [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 104 | pub fn unlock_oam(&mut self) { self.oam_lock = false; } [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Serial` and `Joypad` are never constructed [INFO] [stdout] --> src/core/cpu.rs:62:42 [INFO] [stdout] | [INFO] [stdout] 62 | pub enum Interrupt { VBlank, LCD, Timer, Serial, Joypad } [INFO] [stdout] | --------- variants in this enum ^^^^^^ ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Interrupt` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Serial` and `Joypad` are never constructed [INFO] [stdout] --> src/core/cpu.rs:62:42 [INFO] [stdout] | [INFO] [stdout] 62 | pub enum Interrupt { VBlank, LCD, Timer, Serial, Joypad } [INFO] [stdout] | --------- variants in this enum ^^^^^^ ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Interrupt` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `STAT`, `SCY`, `SCX`, and `LYC` are never constructed [INFO] [stdout] --> src/core/emu.rs:13:3 [INFO] [stdout] | [INFO] [stdout] 10 | pub enum RegHw { [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 13 | STAT = 0xFF41, [INFO] [stdout] | ^^^^ [INFO] [stdout] 14 | SCY = 0xFF42, [INFO] [stdout] | ^^^ [INFO] [stdout] 15 | SCX = 0xFF43, [INFO] [stdout] | ^^^ [INFO] [stdout] 16 | LY = 0xFF44, [INFO] [stdout] 17 | LYC = 0xFF45, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RegHw` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `STAT`, `SCY`, `SCX`, and `LYC` are never constructed [INFO] [stdout] --> src/core/emu.rs:13:3 [INFO] [stdout] | [INFO] [stdout] 10 | pub enum RegHw { [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 13 | STAT = 0xFF41, [INFO] [stdout] | ^^^^ [INFO] [stdout] 14 | SCY = 0xFF42, [INFO] [stdout] | ^^^ [INFO] [stdout] 15 | SCX = 0xFF43, [INFO] [stdout] | ^^^ [INFO] [stdout] 16 | LY = 0xFF44, [INFO] [stdout] 17 | LYC = 0xFF45, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RegHw` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [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 3.09s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint v0.1.44, num-complex v0.1.43, num-rational v0.1.42 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "5176b007095c814b30479592c687b52252fc6baf25cb9d1ac7b4b5ceeb5ed72d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5176b007095c814b30479592c687b52252fc6baf25cb9d1ac7b4b5ceeb5ed72d", kill_on_drop: false }` [INFO] [stdout] 5176b007095c814b30479592c687b52252fc6baf25cb9d1ac7b4b5ceeb5ed72d [INFO] checking Dwscdv3/gamecrab against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDwscdv3%2Fgamecrab" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Dwscdv3/gamecrab 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/Dwscdv3/gamecrab [INFO] finished tweaking git repo https://github.com/Dwscdv3/gamecrab [INFO] tweaked toml for git repo https://github.com/Dwscdv3/gamecrab written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Dwscdv3/gamecrab 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8dfde420bbdcfd987062fcd9fb205d715993c2a520b21253982d347780b3a4f9 [INFO] running `Command { std: "docker" "start" "-a" "8dfde420bbdcfd987062fcd9fb205d715993c2a520b21253982d347780b3a4f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8dfde420bbdcfd987062fcd9fb205d715993c2a520b21253982d347780b3a4f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8dfde420bbdcfd987062fcd9fb205d715993c2a520b21253982d347780b3a4f9", kill_on_drop: false }` [INFO] [stdout] 8dfde420bbdcfd987062fcd9fb205d715993c2a520b21253982d347780b3a4f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4fb86d53f8964a27a323778ef901929b647dad8843ac016252da2e6dafb0bad8 [INFO] running `Command { std: "docker" "start" "-a" "4fb86d53f8964a27a323778ef901929b647dad8843ac016252da2e6dafb0bad8", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.151 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Compiling version-compare v0.1.1 [INFO] [stderr] Compiling signal-hook v0.3.17 [INFO] [stderr] Compiling parking_lot_core v0.9.9 [INFO] [stderr] Compiling log v0.4.20 [INFO] [stderr] Compiling xml-rs v0.8.19 [INFO] [stderr] Checking smallvec v1.11.2 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Compiling sdl2 v0.36.0 [INFO] [stderr] Checking bitflags v2.4.1 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling sdl2-sys v0.36.0 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Compiling lock_api v0.4.11 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking mio v0.8.10 [INFO] [stderr] Checking memmap2 v0.9.0 [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] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.4.1/src/half_lock.rs:145:13 [INFO] [stdout] | [INFO] [stdout] 145 | unsafe { libc::abort() }; [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 `signal-hook-registry` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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] running `Command { std: "docker" "inspect" "4fb86d53f8964a27a323778ef901929b647dad8843ac016252da2e6dafb0bad8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4fb86d53f8964a27a323778ef901929b647dad8843ac016252da2e6dafb0bad8", kill_on_drop: false }` [INFO] [stdout] 4fb86d53f8964a27a323778ef901929b647dad8843ac016252da2e6dafb0bad8