[INFO] cloning repository https://github.com/themeliolabs/dosc-analysis [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/themeliolabs/dosc-analysis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthemeliolabs%2Fdosc-analysis", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthemeliolabs%2Fdosc-analysis'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 07d1da0826283757ffaed4d1f858f2e19c5d48a0 [INFO] checking themeliolabs/dosc-analysis against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthemeliolabs%2Fdosc-analysis" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/themeliolabs/dosc-analysis 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/themeliolabs/dosc-analysis [INFO] finished tweaking git repo https://github.com/themeliolabs/dosc-analysis [INFO] tweaked toml for git repo https://github.com/themeliolabs/dosc-analysis written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/themeliolabs/dosc-analysis 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 proc-macro2 v1.0.32 [INFO] [stderr] Downloaded serde_derive v1.0.130 [INFO] [stderr] Downloaded cached_proc_macro_types v0.1.0 [INFO] [stderr] Downloaded levenshtein v1.0.5 [INFO] [stderr] Downloaded async-rwlock v1.3.0 [INFO] [stderr] Downloaded smol_str v0.1.21 [INFO] [stderr] Downloaded darling_macro v0.13.1 [INFO] [stderr] Downloaded cached_proc_macro v0.7.1 [INFO] [stderr] Downloaded futures-io v0.3.19 [INFO] [stderr] Downloaded futures-macro v0.3.19 [INFO] [stderr] Downloaded futures-task v0.3.19 [INFO] [stderr] Downloaded futures-executor v0.3.19 [INFO] [stderr] Downloaded async-trait v0.1.52 [INFO] [stderr] Downloaded anyhow v1.0.49 [INFO] [stderr] Downloaded futures-util v0.3.19 [INFO] [stderr] Downloaded syn v1.0.82 [INFO] [stderr] Downloaded darling_core v0.13.1 [INFO] [stderr] Downloaded libc v0.2.108 [INFO] [stderr] Downloaded futures v0.3.19 [INFO] [stderr] Downloaded once_cell v1.9.0 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.5 [INFO] [stderr] Downloaded serde_json v1.0.72 [INFO] [stderr] Downloaded serde v1.0.130 [INFO] [stderr] Downloaded darling v0.13.1 [INFO] [stderr] Downloaded futures-channel v0.3.19 [INFO] [stderr] Downloaded futures-sink v0.3.19 [INFO] [stderr] Downloaded cached v0.26.2 [INFO] [stderr] Downloaded futures-core v0.3.19 [INFO] [stderr] Downloaded quote v1.0.10 [INFO] [stderr] Downloaded slab v0.4.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] cec4d2c1ca904302f4d3989076d0ce01f81235eaad2f671a60f7410ff7a8bbdf [INFO] running `Command { std: "docker" "start" "-a" "cec4d2c1ca904302f4d3989076d0ce01f81235eaad2f671a60f7410ff7a8bbdf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cec4d2c1ca904302f4d3989076d0ce01f81235eaad2f671a60f7410ff7a8bbdf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cec4d2c1ca904302f4d3989076d0ce01f81235eaad2f671a60f7410ff7a8bbdf", kill_on_drop: false }` [INFO] [stdout] cec4d2c1ca904302f4d3989076d0ce01f81235eaad2f671a60f7410ff7a8bbdf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6e7916db33bc7f6a637243764ccaed91a442ee331a2b60c7c7dd8e5e16ffd919 [INFO] running `Command { std: "docker" "start" "-a" "6e7916db33bc7f6a637243764ccaed91a442ee331a2b60c7c7dd8e5e16ffd919", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling futures-core v0.3.19 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling futures-channel v0.3.19 [INFO] [stderr] Compiling futures-task v0.3.19 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Checking futures-sink v0.3.19 [INFO] [stderr] Compiling futures-util v0.3.19 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Checking slab v0.4.5 [INFO] [stderr] Checking futures-io v0.3.19 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling async-trait v0.1.52 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Checking num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling anyhow v1.0.49 [INFO] [stderr] Compiling serde_json v1.0.72 [INFO] [stderr] Compiling cached_proc_macro_types v0.1.0 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking async-mutex v1.4.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking once_cell v1.9.0 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking async-rwlock v1.3.0 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking levenshtein v1.0.5 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Compiling darling_core v0.13.1 [INFO] [stderr] Compiling futures-macro v0.3.19 [INFO] [stderr] Compiling darling_macro v0.13.1 [INFO] [stderr] Compiling darling v0.13.1 [INFO] [stderr] Compiling cached_proc_macro v0.7.1 [INFO] [stderr] Checking futures-executor v0.3.19 [INFO] [stderr] Checking futures v0.3.19 [INFO] [stderr] Checking cached v0.26.2 [INFO] [stderr] Checking smol_str v0.1.21 [INFO] [stderr] Checking dosc-analysis v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `cores` [INFO] [stdout] --> src/structs.rs:43:13 [INFO] [stdout] | [INFO] [stdout] 43 | let cores: f64 = cores [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_cores` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cores` [INFO] [stdout] --> src/structs.rs:43:13 [INFO] [stdout] | [INFO] [stdout] 43 | let cores: f64 = cores [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_cores` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `cores` are never read [INFO] [stdout] --> src/structs.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct CpuModel { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 9 | pub id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 14 | pub cores: f64, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CpuModel` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `cores` are never read [INFO] [stdout] --> src/structs.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct CpuModel { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 9 | pub id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 14 | pub cores: f64, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CpuModel` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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 7.61s [INFO] running `Command { std: "docker" "inspect" "6e7916db33bc7f6a637243764ccaed91a442ee331a2b60c7c7dd8e5e16ffd919", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e7916db33bc7f6a637243764ccaed91a442ee331a2b60c7c7dd8e5e16ffd919", kill_on_drop: false }` [INFO] [stdout] 6e7916db33bc7f6a637243764ccaed91a442ee331a2b60c7c7dd8e5e16ffd919