[INFO] cloning repository https://github.com/rikshot/testbed [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rikshot/testbed" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frikshot%2Ftestbed", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frikshot%2Ftestbed'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6571290e1305618cfcff8ef46e049e4a48d15231 [INFO] checking rikshot/testbed against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frikshot%2Ftestbed" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rikshot/testbed 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] removed /workspace/builds/worker-4-tc1/source/.cargo/config [INFO] started tweaking git repo https://github.com/rikshot/testbed [INFO] finished tweaking git repo https://github.com/rikshot/testbed [INFO] tweaked toml for git repo https://github.com/rikshot/testbed written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rikshot/testbed 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] Downloading crates ... [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.40 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.40 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.40 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.40 [INFO] [stderr] Downloaded wasm-bindgen v0.2.40 [INFO] [stderr] Downloaded bumpalo v2.2.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4641dd791c99baa71e48212a1b409bb8e9fdb8140e53cb3b3373cf00a24d7d37 [INFO] running `Command { std: "docker" "start" "-a" "4641dd791c99baa71e48212a1b409bb8e9fdb8140e53cb3b3373cf00a24d7d37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4641dd791c99baa71e48212a1b409bb8e9fdb8140e53cb3b3373cf00a24d7d37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4641dd791c99baa71e48212a1b409bb8e9fdb8140e53cb3b3373cf00a24d7d37", kill_on_drop: false }` [INFO] [stdout] 4641dd791c99baa71e48212a1b409bb8e9fdb8140e53cb3b3373cf00a24d7d37 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ee25f641bbd17d8c77f479ceb802ca124994d4c37203d6be97326a8e33fcf38d [INFO] running `Command { std: "docker" "start" "-a" "ee25f641bbd17d8c77f479ceb802ca124994d4c37203d6be97326a8e33fcf38d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.29 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.40 [INFO] [stderr] Compiling cfg-if v0.1.7 [INFO] [stderr] Compiling bumpalo v2.2.2 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling wasm-bindgen v0.2.40 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling serde v1.0.89 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.40 [INFO] [stderr] Compiling serde_derive v1.0.89 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.40 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.40 [INFO] [stderr] Checking console_error_panic_hook v0.1.6 [INFO] [stderr] Checking mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `total` is assigned to, but never used [INFO] [stdout] --> src/rs/mandelbrot.rs:172:13 [INFO] [stdout] | [INFO] [stdout] 172 | let mut total = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_total` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `total` is assigned to, but never used [INFO] [stdout] --> src/rs/mandelbrot.rs:172:13 [INFO] [stdout] | [INFO] [stdout] 172 | let mut total = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_total` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `Buffers`, which is not FFI-safe [INFO] [stdout] --> src/rs/mandelbrot.rs:226:14 [INFO] [stdout] | [INFO] [stdout] 226 | buffers: Buffers, [INFO] [stdout] | ^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct [INFO] [stdout] = note: this struct has unspecified layout [INFO] [stdout] note: the type is defined here [INFO] [stdout] --> src/rs/mandelbrot.rs:53:1 [INFO] [stdout] | [INFO] [stdout] 53 | pub struct Buffers { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `Buffers`, which is not FFI-safe [INFO] [stdout] --> src/rs/mandelbrot.rs:226:14 [INFO] [stdout] | [INFO] [stdout] 226 | buffers: Buffers, [INFO] [stdout] | ^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct [INFO] [stdout] = note: this struct has unspecified layout [INFO] [stdout] note: the type is defined here [INFO] [stdout] --> src/rs/mandelbrot.rs:53:1 [INFO] [stdout] | [INFO] [stdout] 53 | pub struct Buffers { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used [INFO] [stdout] --> src/rs/mandelbrot.rs:287:13 [INFO] [stdout] | [INFO] [stdout] 287 | CString::from_raw(raw_config); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(from_raw(ptr))` if you intend to drop the `CString` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 287 | let _ = CString::from_raw(raw_config); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used [INFO] [stdout] --> src/rs/mandelbrot.rs:288:13 [INFO] [stdout] | [INFO] [stdout] 288 | CString::from_raw(raw_chunk_config); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(from_raw(ptr))` if you intend to drop the `CString` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 288 | let _ = CString::from_raw(raw_chunk_config); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 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 5.62s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.40 [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" "ee25f641bbd17d8c77f479ceb802ca124994d4c37203d6be97326a8e33fcf38d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee25f641bbd17d8c77f479ceb802ca124994d4c37203d6be97326a8e33fcf38d", kill_on_drop: false }` [INFO] [stdout] ee25f641bbd17d8c77f479ceb802ca124994d4c37203d6be97326a8e33fcf38d [INFO] checking rikshot/testbed against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frikshot%2Ftestbed" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rikshot/testbed 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] removed /workspace/builds/worker-4-tc2/source/.cargo/config [INFO] started tweaking git repo https://github.com/rikshot/testbed [INFO] finished tweaking git repo https://github.com/rikshot/testbed [INFO] tweaked toml for git repo https://github.com/rikshot/testbed written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/rikshot/testbed 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d9e16d6aed414a67af0946b6af3b3a5f0243e026a155a055dbff86e8bdf1da9d [INFO] running `Command { std: "docker" "start" "-a" "d9e16d6aed414a67af0946b6af3b3a5f0243e026a155a055dbff86e8bdf1da9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d9e16d6aed414a67af0946b6af3b3a5f0243e026a155a055dbff86e8bdf1da9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d9e16d6aed414a67af0946b6af3b3a5f0243e026a155a055dbff86e8bdf1da9d", kill_on_drop: false }` [INFO] [stdout] d9e16d6aed414a67af0946b6af3b3a5f0243e026a155a055dbff86e8bdf1da9d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 39a2476f07829192bb7c8df0a91fbc895abcf97543831b79dc81747ab8cd463a [INFO] running `Command { std: "docker" "start" "-a" "39a2476f07829192bb7c8df0a91fbc895abcf97543831b79dc81747ab8cd463a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.29 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.40 [INFO] [stderr] Compiling cfg-if v0.1.7 [INFO] [stderr] Compiling bumpalo v2.2.2 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling serde v1.0.89 [INFO] [stderr] Compiling wasm-bindgen v0.2.40 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bumpalo-2.2.2/src/collections/str/lossy.rs:78:45 [INFO] [stdout] | [INFO] [stdout] 78 | macro_rules! error { () => ({ [INFO] [stdout] | _____________________________________________^ [INFO] [stdout] 79 | | unsafe { [INFO] [stdout] 80 | | let r = Utf8LossyChunk { [INFO] [stdout] 81 | | valid: str::from_utf8_unchecked(&self.source[0..i_]), [INFO] [stdout] ... | [INFO] [stdout] 86 | | } [INFO] [stdout] 87 | | })} [INFO] [stdout] | |_________________^ cannot infer type [INFO] [stdout] ... [INFO] [stdout] 92 | error!(); [INFO] [stdout] | -------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `error` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking itoa v0.4.3 [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 `bumpalo` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "39a2476f07829192bb7c8df0a91fbc895abcf97543831b79dc81747ab8cd463a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "39a2476f07829192bb7c8df0a91fbc895abcf97543831b79dc81747ab8cd463a", kill_on_drop: false }` [INFO] [stdout] 39a2476f07829192bb7c8df0a91fbc895abcf97543831b79dc81747ab8cd463a