[INFO] fetching crate struct-diff 0.2.3...
[INFO] checking struct-diff-0.2.3 against beta for pr-78714
[INFO] extracting crate struct-diff 0.2.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate struct-diff 0.2.3 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 struct-diff 0.2.3
[INFO] finished tweaking crates.io crate struct-diff 0.2.3
[INFO] tweaked toml for crates.io crate struct-diff 0.2.3 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ccce2f3edc35b5354251830dafb55587dff31017d446cfa676dc447b094e26b7
[INFO] running `Command { std: "docker" "start" "-a" "ccce2f3edc35b5354251830dafb55587dff31017d446cfa676dc447b094e26b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccce2f3edc35b5354251830dafb55587dff31017d446cfa676dc447b094e26b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccce2f3edc35b5354251830dafb55587dff31017d446cfa676dc447b094e26b7", kill_on_drop: false }`
[INFO] [stdout] ccce2f3edc35b5354251830dafb55587dff31017d446cfa676dc447b094e26b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 5934393be0bc5386515763ef6ab16e1d17496531c4da4d233f3787dc139306fa
[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" "5934393be0bc5386515763ef6ab16e1d17496531c4da4d233f3787dc139306fa", kill_on_drop: false }`
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking struct-diff v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub left: &'a Debug,
[INFO] [stdout]    |                   ^^^^^ help: use `dyn`: `dyn Debug`
[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:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub right: &'a Debug,
[INFO] [stdout]    |                    ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub left: &'a Debug,
[INFO] [stdout]    |                   ^^^^^ help: use `dyn`: `dyn Debug`
[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:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub right: &'a Debug,
[INFO] [stdout]    |                    ^^^^^ help: use `dyn`: `dyn Debug`
[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 1.49s
[INFO] running `Command { std: "docker" "inspect" "5934393be0bc5386515763ef6ab16e1d17496531c4da4d233f3787dc139306fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5934393be0bc5386515763ef6ab16e1d17496531c4da4d233f3787dc139306fa", kill_on_drop: false }`
[INFO] [stdout] 5934393be0bc5386515763ef6ab16e1d17496531c4da4d233f3787dc139306fa