[INFO] fetching crate df-cache 0.1.6...
[INFO] testing df-cache-0.1.6 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-3
[INFO] extracting crate df-cache 0.1.6 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate df-cache 0.1.6
[INFO] finished tweaking crates.io crate df-cache 0.1.6
[INFO] tweaked toml for crates.io crate df-cache 0.1.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate df-cache 0.1.6 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate df-cache 0.1.6 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-bidi v0.3.11
[INFO] [stderr]   Downloaded redis v0.22.3
[INFO] [stderr]   Downloaded bytes v1.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f
[INFO] running `Command { std: "docker" "start" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.11
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling combine v4.6.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stderr]    Compiling redis v0.22.3
[INFO] [stderr]    Compiling df-cache v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 14.63s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: redis v0.22.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 13`
[INFO] running `Command { std: "docker" "inspect" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling df-cache v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> examples/test.rs:12:41
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let conf = json::parse(conf.as_str().clone()).unwrap();
[INFO] [stdout]    |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.54s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: redis v0.22.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 13`
[INFO] running `Command { std: "docker" "inspect" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]   --> examples/test.rs:12:41
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let conf = json::parse(conf.as_str().clone()).unwrap();
[INFO] [stderr]    |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]    |
[INFO] [stderr]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stderr]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `df-cache` (example "test") generated 1 warning (run `cargo fix --example "test" -p df-cache` to apply 1 suggestion)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.05s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: redis v0.22.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 13`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/df_cache-d43a0f6c5a94b8bf)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests df_cache
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f", kill_on_drop: false }`
[INFO] [stdout] f62e7d53cf4f6fdf94fbf5d914f44b44c54116489fca39be45554bcaa353cc1f