[INFO] fetching crate ralf 0.1.1...
[INFO] checking ralf-0.1.1 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] extracting crate ralf 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ralf 0.1.1 on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ralf 0.1.1
[INFO] finished tweaking crates.io crate ralf 0.1.1
[INFO] tweaked toml for crates.io crate ralf 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d726b2bc033a497c582d885b3c594e2b194c11179620dd82c6f3b101dfefbfc7
[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" "d726b2bc033a497c582d885b3c594e2b194c11179620dd82c6f3b101dfefbfc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d726b2bc033a497c582d885b3c594e2b194c11179620dd82c6f3b101dfefbfc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d726b2bc033a497c582d885b3c594e2b194c11179620dd82c6f3b101dfefbfc7", kill_on_drop: false }`
[INFO] [stdout] d726b2bc033a497c582d885b3c594e2b194c11179620dd82c6f3b101dfefbfc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3539b8039c4f4272c5220b8e4a8ef27a9c2521b9b007b2c2ca66961b520fea79
[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" "3539b8039c4f4272c5220b8e4a8ef27a9c2521b9b007b2c2ca66961b520fea79", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling protobuf v1.7.5
[INFO] [stderr]     Checking flat_map v0.0.4
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking raft v0.1.0
[INFO] [stderr]     Checking ralf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_machine.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 |     reducers: Vec<Box<&'a Reducer<T>>>,
[INFO] [stdout]    |                           ^^^^^^^^^^ help: use `dyn`: `dyn Reducer<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_machine.rs:34:49
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn push_reducer(&mut self, reducer: &'a Reducer<T>) -> &mut Self {
[INFO] [stdout]    |                                                 ^^^^^^^^^^ help: use `dyn`: `dyn Reducer<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_machine.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 |     reducers: Vec<Box<&'a Reducer<T>>>,
[INFO] [stdout]    |                           ^^^^^^^^^^ help: use `dyn`: `dyn Reducer<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_machine.rs:34:49
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn push_reducer(&mut self, reducer: &'a Reducer<T>) -> &mut Self {
[INFO] [stdout]    |                                                 ^^^^^^^^^^ help: use `dyn`: `dyn Reducer<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 [unoptimized + debuginfo] target(s) in 7.50s
[INFO] running `Command { std: "docker" "inspect" "3539b8039c4f4272c5220b8e4a8ef27a9c2521b9b007b2c2ca66961b520fea79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3539b8039c4f4272c5220b8e4a8ef27a9c2521b9b007b2c2ca66961b520fea79", kill_on_drop: false }`
[INFO] [stdout] 3539b8039c4f4272c5220b8e4a8ef27a9c2521b9b007b2c2ca66961b520fea79