[INFO] fetching crate mcp23x17 0.2.0... [INFO] checking mcp23x17-0.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate mcp23x17 0.2.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate mcp23x17 0.2.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mcp23x17 0.2.0 [INFO] finished tweaking crates.io crate mcp23x17 0.2.0 [INFO] tweaked toml for crates.io crate mcp23x17 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 24 packages to latest compatible versions [INFO] [stderr] Adding bitflags v0.3.3 (available: v2.6.0) [INFO] [stderr] Adding bitflags v0.4.0 (available: v2.6.0) [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding cast v0.2.7 (available: v0.3.0) [INFO] [stderr] Adding cfg-if v0.1.10 (available: v1.0.0) [INFO] [stderr] Adding embedded-hal v0.2.7 (available: v1.0.0) [INFO] [stderr] Adding embedded-hal-mock v0.2.0 (available: v0.11.1) [INFO] [stderr] Adding i2cdev v0.4.4 (available: v0.6.1) [INFO] [stderr] Adding linux-embedded-hal v0.2.2 (available: v0.4.0) [INFO] [stderr] Adding nb v0.1.3 (available: v1.1.0) [INFO] [stderr] Adding nix v0.6.0 (available: v0.29.0) [INFO] [stderr] Adding nix v0.14.1 (available: v0.29.0) [INFO] [stderr] Adding rustc_version v0.1.7 (available: v0.4.1) [INFO] [stderr] Adding semver v0.1.20 (available: v1.0.23) [INFO] [stderr] Adding spidev v0.3.0 (available: v0.6.0) [INFO] [stderr] Adding sysfs_gpio v0.5.4 (available: v0.6.2) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e1dddd1574021393a3c80bd9b83cf261a85595bedebc0b7fe46f25a832ac6ddf [INFO] running `Command { std: "docker" "start" "-a" "e1dddd1574021393a3c80bd9b83cf261a85595bedebc0b7fe46f25a832ac6ddf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e1dddd1574021393a3c80bd9b83cf261a85595bedebc0b7fe46f25a832ac6ddf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e1dddd1574021393a3c80bd9b83cf261a85595bedebc0b7fe46f25a832ac6ddf", kill_on_drop: false }` [INFO] [stdout] e1dddd1574021393a3c80bd9b83cf261a85595bedebc0b7fe46f25a832ac6ddf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f22fe475a57c7d191195ca72ca09006a651a6cdee20c8517fb88950ea25d07dd [INFO] running `Command { std: "docker" "start" "-a" "f22fe475a57c7d191195ca72ca09006a651a6cdee20c8517fb88950ea25d07dd", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking bitflags v0.4.0 [INFO] [stderr] Checking bitflags v0.3.3 [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking embedded-hal v0.2.7 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Checking embedded-hal-mock v0.2.0 [INFO] [stderr] Checking mcp23x17 v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated constant `_nothin` should have an upper case name [INFO] [stdout] --> src/lib.rs:101:15 [INFO] [stdout] | [INFO] [stdout] 101 | const _nothin = 1 << 0; [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper case: `_NOTHIN` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling nix v0.6.0 [INFO] [stderr] Checking spidev v0.3.0 [INFO] [stderr] Checking sysfs_gpio v0.5.4 [INFO] [stderr] Checking i2cdev v0.4.4 [INFO] [stderr] Checking linux-embedded-hal v0.2.2 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> examples/pi.rs:27:29 [INFO] [stdout] | [INFO] [stdout] 27 | fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 27 | fn main() -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/lib.rs:273:9 [INFO] [stdout] | [INFO] [stdout] 273 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated constant `_nothin` should have an upper case name [INFO] [stdout] --> src/lib.rs:101:15 [INFO] [stdout] | [INFO] [stdout] 101 | const _nothin = 1 << 0; [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper case: `_NOTHIN` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.77s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0 [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" "f22fe475a57c7d191195ca72ca09006a651a6cdee20c8517fb88950ea25d07dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f22fe475a57c7d191195ca72ca09006a651a6cdee20c8517fb88950ea25d07dd", kill_on_drop: false }` [INFO] [stdout] f22fe475a57c7d191195ca72ca09006a651a6cdee20c8517fb88950ea25d07dd