[INFO] fetching crate rurel 0.1.2...
[INFO] checking rurel-0.1.2 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate rurel 0.1.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rurel 0.1.2 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rurel 0.1.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rurel 0.1.2
[INFO] tweaked toml for crates.io crate rurel 0.1.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", 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] 1b79d8eb4014312942fe349524d356cc1c8df2b85261d577be3f336e190c454a
[INFO] running `Command { std: "docker" "start" "-a" "1b79d8eb4014312942fe349524d356cc1c8df2b85261d577be3f336e190c454a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b79d8eb4014312942fe349524d356cc1c8df2b85261d577be3f336e190c454a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b79d8eb4014312942fe349524d356cc1c8df2b85261d577be3f336e190c454a", kill_on_drop: false }`
[INFO] [stdout] 1b79d8eb4014312942fe349524d356cc1c8df2b85261d577be3f336e190c454a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3e0627f073a5662dab13c88f8f97b260c6ff69a947da15c3afde4553f7ecb11
[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" "a3e0627f073a5662dab13c88f8f97b260c6ff69a947da15c3afde4553f7ecb11", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rurel v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/strategy/explore/random.rs:20:39
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pick_action(&self, agent: &mut Agent<S>) -> S::A {
[INFO] [stdout]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/strategy/explore/random.rs:20:39
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pick_action(&self, agent: &mut Agent<S>) -> S::A {
[INFO] [stdout]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/strategy/explore/mod.rs:17:32
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn pick_action(&self, &mut Agent<S>) -> S::A;
[INFO] [stdout]    |                                ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:124:30
[INFO] [stdout]     |
[INFO] [stdout] 124 |                  agent: &mut Agent<S>,
[INFO] [stdout]     |                              ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/strategy/explore/mod.rs:17:32
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn pick_action(&self, &mut Agent<S>) -> S::A;
[INFO] [stdout]    |                                ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:125:38
[INFO] [stdout]     |
[INFO] [stdout] 125 |                  learning_strategy: &LearningStrategy<S>,
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LearningStrategy<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:124:30
[INFO] [stdout]     |
[INFO] [stdout] 124 |                  agent: &mut Agent<S>,
[INFO] [stdout]     |                              ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:126:45
[INFO] [stdout]     |
[INFO] [stdout] 126 |                  termination_strategy: &mut TerminationStrategy<S>,
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TerminationStrategy<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:125:38
[INFO] [stdout]     |
[INFO] [stdout] 125 |                  learning_strategy: &LearningStrategy<S>,
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LearningStrategy<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:127:41
[INFO] [stdout]     |
[INFO] [stdout] 127 |                  exploration_strategy: &ExplorationStrategy<S>)
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExplorationStrategy<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:126:45
[INFO] [stdout]     |
[INFO] [stdout] 126 |                  termination_strategy: &mut TerminationStrategy<S>,
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TerminationStrategy<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:127:41
[INFO] [stdout]     |
[INFO] [stdout] 127 |                  exploration_strategy: &ExplorationStrategy<S>)
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExplorationStrategy<S>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "a3e0627f073a5662dab13c88f8f97b260c6ff69a947da15c3afde4553f7ecb11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3e0627f073a5662dab13c88f8f97b260c6ff69a947da15c3afde4553f7ecb11", kill_on_drop: false }`
[INFO] [stdout] a3e0627f073a5662dab13c88f8f97b260c6ff69a947da15c3afde4553f7ecb11