[INFO] cloning repository https://github.com/blt/metrics_histo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blt/metrics_histo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblt%2Fmetrics_histo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblt%2Fmetrics_histo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 170e02df8a4003473f39dcf2da3508c231ebd3ec [INFO] checking blt/metrics_histo against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblt%2Fmetrics_histo" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/blt/metrics_histo 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/blt/metrics_histo [INFO] finished tweaking git repo https://github.com/blt/metrics_histo [INFO] tweaked toml for git repo https://github.com/blt/metrics_histo written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/blt/metrics_histo 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded sketches-ddsketch v0.1.2 [INFO] [stderr] Downloaded raw-cpuid v9.0.0 [INFO] [stderr] Downloaded quanta v0.7.2 [INFO] [stderr] Downloaded metrics-tracing-context v0.3.0 [INFO] [stderr] Downloaded metrics-macros v0.2.0 [INFO] [stderr] Downloaded metrics v0.14.2 [INFO] [stderr] Downloaded metrics-util v0.6.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7ce129b68d55abdfc4f8704f4c70bf177a847e94b21e5af8a014074df25b221c [INFO] running `Command { std: "docker" "start" "-a" "7ce129b68d55abdfc4f8704f4c70bf177a847e94b21e5af8a014074df25b221c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7ce129b68d55abdfc4f8704f4c70bf177a847e94b21e5af8a014074df25b221c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ce129b68d55abdfc4f8704f4c70bf177a847e94b21e5af8a014074df25b221c", kill_on_drop: false }` [INFO] [stdout] 7ce129b68d55abdfc4f8704f4c70bf177a847e94b21e5af8a014074df25b221c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b96f371b0649d07ff9574c8f2f9302ad7b6274d33f9453736efdd70c7d85e22a [INFO] running `Command { std: "docker" "start" "-a" "b96f371b0649d07ff9574c8f2f9302ad7b6274d33f9453736efdd70c7d85e22a", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.92 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.68 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Checking tracing-core v0.1.17 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Compiling regex-syntax v0.6.23 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking lock_api v0.4.3 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling metrics v0.14.2 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking raw-cpuid v9.0.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking atomic-shim v0.1.0 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling regex v1.4.5 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking quanta v0.7.2 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking ordered-float v2.1.1 [INFO] [stderr] Checking dashmap v4.0.2 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Compiling tokio v1.4.0 [INFO] [stderr] Checking sharded-slab v0.1.1 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking sketches-ddsketch v0.1.2 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking mio v0.7.11 [INFO] [stderr] Checking signal-hook-registry v1.3.0 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking twox-hash v1.6.0 [INFO] [stderr] Compiling metrics-macros v0.2.0 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Compiling tokio-macros v1.1.0 [INFO] [stderr] Checking metrics-util v0.6.2 [INFO] [stderr] Checking tracing v0.1.25 [INFO] [stderr] Checking tracing-subscriber v0.2.17 [INFO] [stderr] Checking metrics-tracing-context v0.3.0 [INFO] [stderr] Checking metrics_histo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `metrics` is imported redundantly [INFO] [stdout] --> src/recorder.rs:2:15 [INFO] [stdout] | [INFO] [stdout] 2 | use metrics::{self, GaugeValue, Key, Unit}; [INFO] [stdout] | ^^^^ the item `metrics` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `metrics` is imported redundantly [INFO] [stdout] --> src/recorder.rs:2:15 [INFO] [stdout] | [INFO] [stdout] 2 | use metrics::{self, GaugeValue, Key, Unit}; [INFO] [stdout] | ^^^^ the item `metrics` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [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] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/main.rs:30:21 [INFO] [stdout] | [INFO] [stdout] 30 | drop(handle.read_counter()); [INFO] [stdout] | ^^^^^---------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `u64` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/main.rs:33:21 [INFO] [stdout] | [INFO] [stdout] 33 | drop(handle.read_gauge()); [INFO] [stdout] | ^^^^^-------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `f64` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/main.rs:30:21 [INFO] [stdout] | [INFO] [stdout] 30 | drop(handle.read_counter()); [INFO] [stdout] | ^^^^^---------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `u64` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/main.rs:33:21 [INFO] [stdout] | [INFO] [stdout] 33 | drop(handle.read_gauge()); [INFO] [stdout] | ^^^^^-------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `f64` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.86s [INFO] running `Command { std: "docker" "inspect" "b96f371b0649d07ff9574c8f2f9302ad7b6274d33f9453736efdd70c7d85e22a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b96f371b0649d07ff9574c8f2f9302ad7b6274d33f9453736efdd70c7d85e22a", kill_on_drop: false }` [INFO] [stdout] b96f371b0649d07ff9574c8f2f9302ad7b6274d33f9453736efdd70c7d85e22a