[INFO] cloning repository https://github.com/TheRealMintd/save-manager [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheRealMintd/save-manager" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheRealMintd%2Fsave-manager", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheRealMintd%2Fsave-manager'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 520ffd59d29d12da405e6eb3bb4aa967c7a88166 [INFO] checking TheRealMintd/save-manager against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheRealMintd%2Fsave-manager" "/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/TheRealMintd/save-manager 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/TheRealMintd/save-manager [INFO] finished tweaking git repo https://github.com/TheRealMintd/save-manager [INFO] tweaked toml for git repo https://github.com/TheRealMintd/save-manager written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/TheRealMintd/save-manager 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 cursive v0.15.0 [INFO] [stderr] Downloaded rust-ini v0.15.3 [INFO] [stderr] Downloaded dlv-list v0.2.2 [INFO] [stderr] Downloaded const-random-macro v0.1.8 [INFO] [stderr] Downloaded const-random v0.1.8 [INFO] [stderr] Downloaded ordered-multimap v0.2.4 [INFO] [stderr] Downloaded mio v0.7.0 [INFO] [stderr] Downloaded crossterm_winapi v0.6.1 [INFO] [stderr] Downloaded array-macro v1.0.5 [INFO] [stderr] Downloaded enum-map-derive v0.4.3 [INFO] [stderr] Downloaded enum-map v0.6.2 [INFO] [stderr] Downloaded ahash v0.4.4 [INFO] [stderr] Downloaded enumset_derive v0.5.0 [INFO] [stderr] Downloaded crossterm v0.17.7 [INFO] [stderr] Downloaded ntapi v0.3.4 [INFO] [stderr] Downloaded cursive_core v0.1.1 [INFO] [stderr] Downloaded libc v0.2.73 [INFO] [stderr] Downloaded syn v1.0.35 [INFO] [stderr] Downloaded enumset v1.0.0 [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] ae8e0bda277a1a3c8109be6b777792fb73a17763cc5683f8550027cb7c4b3f9c [INFO] running `Command { std: "docker" "start" "-a" "ae8e0bda277a1a3c8109be6b777792fb73a17763cc5683f8550027cb7c4b3f9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ae8e0bda277a1a3c8109be6b777792fb73a17763cc5683f8550027cb7c4b3f9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae8e0bda277a1a3c8109be6b777792fb73a17763cc5683f8550027cb7c4b3f9c", kill_on_drop: false }` [INFO] [stdout] ae8e0bda277a1a3c8109be6b777792fb73a17763cc5683f8550027cb7c4b3f9c [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] 6c4b862ce36723681328f3734876a57f57b3d7bc01903e6371dbe953b535d358 [INFO] running `Command { std: "docker" "start" "-a" "6c4b862ce36723681328f3734876a57f57b3d7bc01903e6371dbe953b535d358", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling syn v1.0.35 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling proc-macro-hack v0.5.16 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling num-rational v0.3.0 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking arc-swap v0.4.7 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Checking smallvec v1.4.1 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking array-macro v1.0.5 [INFO] [stderr] Checking unicode-segmentation v1.6.0 [INFO] [stderr] Checking owning_ref v0.4.1 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking crossbeam-channel v0.4.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking mio v0.7.0 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking parking_lot_core v0.7.2 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking inotify-sys v0.1.3 [INFO] [stderr] Checking filetime v0.2.10 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking signal-hook v0.1.16 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Compiling const-random-macro v0.1.8 [INFO] [stderr] Checking num-complex v0.3.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking crossterm v0.17.7 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking chrono v0.4.13 [INFO] [stderr] Checking const-random v0.1.8 [INFO] [stderr] Checking ahash v0.3.8 [INFO] [stderr] Checking ahash v0.4.4 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking num v0.3.0 [INFO] [stderr] Checking notify v4.0.15 [INFO] [stderr] Checking dlv-list v0.2.2 [INFO] [stderr] Checking ordered-multimap v0.2.4 [INFO] [stderr] Checking rust-ini v0.15.3 [INFO] [stderr] Compiling darling_core v0.10.2 [INFO] [stderr] Compiling enum-map-derive v0.4.3 [INFO] [stderr] Checking enum-map v0.6.2 [INFO] [stderr] Compiling darling_macro v0.10.2 [INFO] [stderr] Compiling darling v0.10.2 [INFO] [stderr] Compiling enumset_derive v0.5.0 [INFO] [stderr] Checking enumset v1.0.0 [INFO] [stderr] Checking cursive_core v0.1.1 [INFO] [stderr] Checking cursive v0.15.0 [INFO] [stderr] Checking save-manager v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:415:5 [INFO] [stdout] | [INFO] [stdout] 415 | &watcher; [INFO] [stdout] | ^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 415 | let _ = &watcher; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:415:5 [INFO] [stdout] | [INFO] [stdout] 415 | &watcher; [INFO] [stdout] | ^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 415 | let _ = &watcher; [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 5.91s [INFO] running `Command { std: "docker" "inspect" "6c4b862ce36723681328f3734876a57f57b3d7bc01903e6371dbe953b535d358", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c4b862ce36723681328f3734876a57f57b3d7bc01903e6371dbe953b535d358", kill_on_drop: false }` [INFO] [stdout] 6c4b862ce36723681328f3734876a57f57b3d7bc01903e6371dbe953b535d358