[INFO] fetching crate f289ctrl 0.1.0... [INFO] checking f289ctrl-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate f289ctrl 0.1.0 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate f289ctrl 0.1.0 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 f289ctrl 0.1.0 [INFO] finished tweaking crates.io crate f289ctrl 0.1.0 [INFO] tweaked toml for crates.io crate f289ctrl 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate f289ctrl 0.1.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio-serial v5.4.4 [INFO] [stderr] Downloaded mach2 v0.4.1 [INFO] [stderr] Downloaded serialport v4.2.2 [INFO] [stderr] Downloaded mach v0.1.2 [INFO] [stderr] Downloaded IOKit-sys v0.1.5 [INFO] [stderr] Downloaded bitflags v2.0.2 [INFO] [stderr] Downloaded anstyle v1.0.2 [INFO] [stderr] Downloaded chrono v0.4.30 [INFO] [stderr] Downloaded clap_builder v4.4.2 [INFO] [stderr] Downloaded clap v4.4.2 [INFO] [stderr] Downloaded syn v2.0.31 [INFO] [stderr] Downloaded CoreFoundation-sys v0.1.4 [INFO] [stderr] Downloaded mio-serial v5.0.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 31af288fd667c637db8a9e877c71a2204b8b3d4753a608cb79d94fcc15cf7097 [INFO] running `Command { std: "docker" "start" "-a" "31af288fd667c637db8a9e877c71a2204b8b3d4753a608cb79d94fcc15cf7097", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "31af288fd667c637db8a9e877c71a2204b8b3d4753a608cb79d94fcc15cf7097", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31af288fd667c637db8a9e877c71a2204b8b3d4753a608cb79d94fcc15cf7097", kill_on_drop: false }` [INFO] [stdout] 31af288fd667c637db8a9e877c71a2204b8b3d4753a608cb79d94fcc15cf7097 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5570152a242c1dd1527d2a8721d9f0ec1d9982c8593f8150521c8f117564c2df [INFO] running `Command { std: "docker" "start" "-a" "5570152a242c1dd1527d2a8721d9f0ec1d9982c8593f8150521c8f117564c2df", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Checking pin-project-lite v0.2.13 [INFO] [stderr] Compiling memoffset v0.7.1 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Checking futures-sink v0.3.28 [INFO] [stderr] Compiling futures-channel v0.3.28 [INFO] [stderr] Compiling futures-task v0.3.28 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Checking smallvec v1.11.0 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Checking lock_api v0.4.10 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Checking anstyle v1.0.2 [INFO] [stderr] Checking once_cell v1.18.0 [INFO] [stderr] Checking bitflags v2.0.2 [INFO] [stderr] Checking bytes v1.5.0 [INFO] [stderr] Compiling thiserror v1.0.48 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Checking tracing-core v0.1.31 [INFO] [stderr] Checking anstream v0.5.0 [INFO] [stderr] Checking clap_builder v4.4.2 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.31 [INFO] [stderr] Checking chrono v0.4.30 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking socket2 v0.5.3 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking nix v0.26.4 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking clap v4.4.2 [INFO] [stderr] Compiling futures-macro v0.3.28 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling thiserror-impl v1.0.48 [INFO] [stderr] Checking serialport v4.2.2 [INFO] [stderr] Checking tokio v1.32.0 [INFO] [stderr] Checking mio-serial v5.0.5 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stderr] Checking tokio-util v0.7.8 [INFO] [stderr] Checking tokio-serial v5.4.4 [INFO] [stderr] Checking f289ctrl v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/measurement.rs:282:22 [INFO] [stdout] | [INFO] [stdout] 282 | pub struct AutoRange(bool); [INFO] [stdout] | --------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `AutoRange` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 282 | pub struct AutoRange(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/measurement.rs:282:22 [INFO] [stdout] | [INFO] [stdout] 282 | pub struct AutoRange(bool); [INFO] [stdout] | --------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `AutoRange` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 282 | pub struct AutoRange(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.69s [INFO] running `Command { std: "docker" "inspect" "5570152a242c1dd1527d2a8721d9f0ec1d9982c8593f8150521c8f117564c2df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5570152a242c1dd1527d2a8721d9f0ec1d9982c8593f8150521c8f117564c2df", kill_on_drop: false }` [INFO] [stdout] 5570152a242c1dd1527d2a8721d9f0ec1d9982c8593f8150521c8f117564c2df [INFO] checking f289ctrl-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate f289ctrl 0.1.0 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate f289ctrl 0.1.0 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 f289ctrl 0.1.0 [INFO] finished tweaking crates.io crate f289ctrl 0.1.0 [INFO] tweaked toml for crates.io crate f289ctrl 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate f289ctrl 0.1.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d436bc145d8e35cb2c08ba422dae651a74cf999036eb78a7003961c468f12c4a [INFO] running `Command { std: "docker" "start" "-a" "d436bc145d8e35cb2c08ba422dae651a74cf999036eb78a7003961c468f12c4a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d436bc145d8e35cb2c08ba422dae651a74cf999036eb78a7003961c468f12c4a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d436bc145d8e35cb2c08ba422dae651a74cf999036eb78a7003961c468f12c4a", kill_on_drop: false }` [INFO] [stdout] d436bc145d8e35cb2c08ba422dae651a74cf999036eb78a7003961c468f12c4a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] bf2f6baa2f6b22bb052699f6cd3c330ed8156fa482f677390cc4119fbaf859be [INFO] running `Command { std: "docker" "start" "-a" "bf2f6baa2f6b22bb052699f6cd3c330ed8156fa482f677390cc4119fbaf859be", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Checking pin-project-lite v0.2.13 [INFO] [stderr] Compiling memoffset v0.7.1 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling futures-task v0.3.28 [INFO] [stderr] Checking futures-sink v0.3.28 [INFO] [stderr] Compiling futures-channel v0.3.28 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Checking smallvec v1.11.0 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Checking lock_api v0.4.10 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Checking anstyle v1.0.2 [INFO] [stderr] Checking bytes v1.5.0 [INFO] [stderr] Checking bitflags v2.0.2 [INFO] [stderr] Checking once_cell v1.18.0 [INFO] [stderr] Compiling thiserror v1.0.48 [INFO] [stderr] Checking anstream v0.5.0 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Checking tracing-core v0.1.31 [INFO] [stderr] Checking clap_builder v4.4.2 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.31 [INFO] [stderr] Checking chrono v0.4.30 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking socket2 v0.5.3 [INFO] [stderr] Checking nix v0.26.4 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking clap v4.4.2 [INFO] [stderr] Compiling futures-macro v0.3.28 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling thiserror-impl v1.0.48 [INFO] [stderr] Checking tokio v1.32.0 [INFO] [stderr] Checking serialport v4.2.2 [INFO] [stderr] Checking mio-serial v5.0.5 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stderr] Checking tokio-util v0.7.8 [INFO] [stderr] Checking tokio-serial v5.4.4 [INFO] [stderr] Checking f289ctrl v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/measurement.rs:282:22 [INFO] [stdout] | [INFO] [stdout] 282 | pub struct AutoRange(bool); [INFO] [stdout] | --------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `AutoRange` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 282 | pub struct AutoRange(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/measurement.rs:282:22 [INFO] [stdout] | [INFO] [stdout] 282 | pub struct AutoRange(bool); [INFO] [stdout] | --------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `AutoRange` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 282 | pub struct AutoRange(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.19s [INFO] running `Command { std: "docker" "inspect" "bf2f6baa2f6b22bb052699f6cd3c330ed8156fa482f677390cc4119fbaf859be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf2f6baa2f6b22bb052699f6cd3c330ed8156fa482f677390cc4119fbaf859be", kill_on_drop: false }` [INFO] [stdout] bf2f6baa2f6b22bb052699f6cd3c330ed8156fa482f677390cc4119fbaf859be