[INFO] fetching crate rsfbclient 0.12.0...
[INFO] checking rsfbclient-0.12.0 against beta for pr-78714
[INFO] extracting crate rsfbclient 0.12.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate rsfbclient 0.12.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsfbclient 0.12.0
[INFO] finished tweaking crates.io crate rsfbclient 0.12.0
[INFO] tweaked toml for crates.io crate rsfbclient 0.12.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate rsfbclient 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed58f02a189ae492dec1b405a7db9db766592165466752fd2957873fe3323525
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ed58f02a189ae492dec1b405a7db9db766592165466752fd2957873fe3323525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed58f02a189ae492dec1b405a7db9db766592165466752fd2957873fe3323525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed58f02a189ae492dec1b405a7db9db766592165466752fd2957873fe3323525", kill_on_drop: false }`
[INFO] [stdout] ed58f02a189ae492dec1b405a7db9db766592165466752fd2957873fe3323525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fbf188f7d0e5c3a8a53841890846cc0ee806fd75a2e0cf3d9cde4130f2bfecce
[INFO] running `Command { std: "docker" "start" "-a" "fbf188f7d0e5c3a8a53841890846cc0ee806fd75a2e0cf3d9cde4130f2bfecce", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling rsfbclient-native v0.12.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking blowfish v0.5.0
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking pwhash v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling rsfbclient-derive v0.12.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking rsfbclient-core v0.12.0
[INFO] [stderr]     Checking rsfbclient-rust v0.12.0
[INFO] [stderr]     Checking rsfbclient v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]   --> src/transaction.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             ManuallyDrop::new(self);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]   --> src/transaction.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         ManuallyDrop::new(self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]   --> src/transaction.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             ManuallyDrop::new(self);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]   --> src/transaction.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         ManuallyDrop::new(self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.23s
[INFO] running `Command { std: "docker" "inspect" "fbf188f7d0e5c3a8a53841890846cc0ee806fd75a2e0cf3d9cde4130f2bfecce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf188f7d0e5c3a8a53841890846cc0ee806fd75a2e0cf3d9cde4130f2bfecce", kill_on_drop: false }`
[INFO] [stdout] fbf188f7d0e5c3a8a53841890846cc0ee806fd75a2e0cf3d9cde4130f2bfecce