[INFO] fetching crate advancedresearch-asi_core0 0.1.0...
[INFO] checking advancedresearch-asi_core0-0.1.0 against beta for pr-78714
[INFO] extracting crate advancedresearch-asi_core0 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate advancedresearch-asi_core0 0.1.0 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 advancedresearch-asi_core0 0.1.0
[INFO] finished tweaking crates.io crate advancedresearch-asi_core0 0.1.0
[INFO] tweaked toml for crates.io crate advancedresearch-asi_core0 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 41c2dbd70a0043e9e2f13f4ddfaacd55b146edf5423cd0e2f4a889275ac7638d
[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" "41c2dbd70a0043e9e2f13f4ddfaacd55b146edf5423cd0e2f4a889275ac7638d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41c2dbd70a0043e9e2f13f4ddfaacd55b146edf5423cd0e2f4a889275ac7638d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c2dbd70a0043e9e2f13f4ddfaacd55b146edf5423cd0e2f4a889275ac7638d", kill_on_drop: false }`
[INFO] [stdout] 41c2dbd70a0043e9e2f13f4ddfaacd55b146edf5423cd0e2f4a889275ac7638d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 6db4732c7557c72784a0c752072a158a9f1708c37b4001f17345fd9e20226a07
[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" "6db4732c7557c72784a0c752072a158a9f1708c37b4001f17345fd9e20226a07", kill_on_drop: false }`
[INFO] [stderr]     Checking advancedresearch-asi_core0 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:192:20
[INFO] [stdout]     |
[INFO] [stdout] 192 |         error: Box<::std::error::Error>
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[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/lib.rs:199:20
[INFO] [stdout]     |
[INFO] [stdout] 199 |         error: Box<::std::error::Error>
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:310:55
[INFO] [stdout]     |
[INFO] [stdout] 310 |     fn try_receive(&mut self) -> Option<Result<T, Box<::std::error::Error>>>;
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:319:56
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn try_confirm(&mut self) -> Option<Result<(), Box<::std::error::Error>>>;
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:192:20
[INFO] [stdout]     |
[INFO] [stdout] 192 |         error: Box<::std::error::Error>
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[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/lib.rs:199:20
[INFO] [stdout]     |
[INFO] [stdout] 199 |         error: Box<::std::error::Error>
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:310:55
[INFO] [stdout]     |
[INFO] [stdout] 310 |     fn try_receive(&mut self) -> Option<Result<T, Box<::std::error::Error>>>;
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:319:56
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn try_confirm(&mut self) -> Option<Result<(), Box<::std::error::Error>>>;
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/bob_sleeps.rs:33:56
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn try_receive(&mut self) -> Option<Result<(), Box<::std::error::Error>>> {None}
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[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]   --> examples/bob_sleeps.rs:61:56
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn try_confirm(&mut self) -> Option<Result<(), Box<::std::error::Error>>> {
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "6db4732c7557c72784a0c752072a158a9f1708c37b4001f17345fd9e20226a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6db4732c7557c72784a0c752072a158a9f1708c37b4001f17345fd9e20226a07", kill_on_drop: false }`
[INFO] [stdout] 6db4732c7557c72784a0c752072a158a9f1708c37b4001f17345fd9e20226a07