[INFO] fetching crate ffi-support 0.4.4... [INFO] checking ffi-support-0.4.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate ffi-support 0.4.4 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate ffi-support 0.4.4 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 crates.io crate ffi-support 0.4.4 [INFO] finished tweaking crates.io crate ffi-support 0.4.4 [INFO] tweaked toml for crates.io crate ffi-support 0.4.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 28 packages [INFO] [stderr] Adding env_logger v0.7.1 (latest: v0.11.3) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.12) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding rand v0.7.3 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.2.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.5.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.2.0 (latest: v0.3.2) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [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-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 907863ef95ba176f1e730b1e71361c244b132d6b9ed223ea24f62d7dea294ff2 [INFO] running `Command { std: "docker" "start" "-a" "907863ef95ba176f1e730b1e71361c244b132d6b9ed223ea24f62d7dea294ff2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "907863ef95ba176f1e730b1e71361c244b132d6b9ed223ea24f62d7dea294ff2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "907863ef95ba176f1e730b1e71361c244b132d6b9ed223ea24f62d7dea294ff2", kill_on_drop: false }` [INFO] [stdout] 907863ef95ba176f1e730b1e71361c244b132d6b9ed223ea24f62d7dea294ff2 [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8c530925f713166f8f5a00df372961231ce326a9465c3661fa8ef3794bf18373 [INFO] running `Command { std: "docker" "start" "-a" "8c530925f713166f8f5a00df372961231ce326a9465c3661fa8ef3794bf18373", kill_on_drop: false }` [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking ffi-support v0.4.4 (/opt/rustwide/workdir) [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/error.rs:19:11 [INFO] [stdout] | [INFO] [stdout] 19 | use std::{self, ptr}; [INFO] [stdout] | ^^^^ the item `std` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::macros::*` [INFO] [stdout] --> src/lib.rs:122:9 [INFO] [stdout] | [INFO] [stdout] 122 | pub use crate::macros::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/error.rs:19:11 [INFO] [stdout] | [INFO] [stdout] 19 | use std::{self, ptr}; [INFO] [stdout] | ^^^^ the item `std` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::macros::*` [INFO] [stdout] --> src/lib.rs:122:9 [INFO] [stdout] | [INFO] [stdout] 122 | pub use crate::macros::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.27s [INFO] running `Command { std: "docker" "inspect" "8c530925f713166f8f5a00df372961231ce326a9465c3661fa8ef3794bf18373", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c530925f713166f8f5a00df372961231ce326a9465c3661fa8ef3794bf18373", kill_on_drop: false }` [INFO] [stdout] 8c530925f713166f8f5a00df372961231ce326a9465c3661fa8ef3794bf18373 [INFO] checking ffi-support-0.4.4 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate ffi-support 0.4.4 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate ffi-support 0.4.4 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 crates.io crate ffi-support 0.4.4 [INFO] finished tweaking crates.io crate ffi-support 0.4.4 [INFO] tweaked toml for crates.io crate ffi-support 0.4.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 28 packages [INFO] [stderr] Adding env_logger v0.7.1 (latest: v0.11.3) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.12) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding rand v0.7.3 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.2.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.5.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.2.0 (latest: v0.3.2) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [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-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 060f759582cd43015f0c2e75eeec3f6af9786ad7b558fcdd7883073cbc6ca26f [INFO] running `Command { std: "docker" "start" "-a" "060f759582cd43015f0c2e75eeec3f6af9786ad7b558fcdd7883073cbc6ca26f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "060f759582cd43015f0c2e75eeec3f6af9786ad7b558fcdd7883073cbc6ca26f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "060f759582cd43015f0c2e75eeec3f6af9786ad7b558fcdd7883073cbc6ca26f", kill_on_drop: false }` [INFO] [stdout] 060f759582cd43015f0c2e75eeec3f6af9786ad7b558fcdd7883073cbc6ca26f [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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d17c3106a3c766424d5f487a37157a5dd64b952de4adfe55822bc6992d83e946 [INFO] running `Command { std: "docker" "start" "-a" "d17c3106a3c766424d5f487a37157a5dd64b952de4adfe55822bc6992d83e946", kill_on_drop: false }` [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking ffi-support v0.4.4 (/opt/rustwide/workdir) [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/error.rs:19:11 [INFO] [stdout] | [INFO] [stdout] 19 | use std::{self, ptr}; [INFO] [stdout] | ^^^^ the item `std` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::macros::*` [INFO] [stdout] --> src/lib.rs:122:9 [INFO] [stdout] | [INFO] [stdout] 122 | pub use crate::macros::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/error.rs:19:11 [INFO] [stdout] | [INFO] [stdout] 19 | use std::{self, ptr}; [INFO] [stdout] | ^^^^ the item `std` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::macros::*` [INFO] [stdout] --> src/lib.rs:122:9 [INFO] [stdout] | [INFO] [stdout] 122 | pub use crate::macros::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `!: into_ffi::IntoFfi` is not satisfied [INFO] [stdout] --> src/handle_map.rs:1216:17 [INFO] [stdout] | [INFO] [stdout] 1216 | map.call_with_output(&mut e, h, |_thing| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ the trait `into_ffi::IntoFfi` is not implemented for `!` [INFO] [stdout] | [INFO] [stdout] = help: the following other types implement trait `into_ffi::IntoFfi`: [INFO] [stdout] () [INFO] [stdout] *const c_void [INFO] [stdout] *const i8 [INFO] [stdout] *const u8 [INFO] [stdout] *mut c_void [INFO] [stdout] *mut i8 [INFO] [stdout] *mut u8 [INFO] [stdout] ByteBuffer [INFO] [stdout] and 14 others [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #48950 for more information) [INFO] [stdout] = help: did you intend to use the type `()` here instead? [INFO] [stdout] note: required by a bound in `handle_map::ConcurrentHandleMap::::call_with_output` [INFO] [stdout] --> src/handle_map.rs:982:12 [INFO] [stdout] | [INFO] [stdout] 974 | pub fn call_with_output( [INFO] [stdout] | ---------------- required by a bound in this associated function [INFO] [stdout] ... [INFO] [stdout] 982 | R: IntoFfi, [INFO] [stdout] | ^^^^^^^ required by this bound in `ConcurrentHandleMap::::call_with_output` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `ffi-support` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "d17c3106a3c766424d5f487a37157a5dd64b952de4adfe55822bc6992d83e946", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d17c3106a3c766424d5f487a37157a5dd64b952de4adfe55822bc6992d83e946", kill_on_drop: false }` [INFO] [stdout] d17c3106a3c766424d5f487a37157a5dd64b952de4adfe55822bc6992d83e946