[INFO] fetching crate struct-diff 0.2.3...
[INFO] checking struct-diff-0.2.3 against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] extracting crate struct-diff 0.2.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate struct-diff 0.2.3 on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "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] 691423730de94c1c543186b91a3c0f4b457e2461d17a867a8b2689b97e45b656
[INFO] running `Command { std: "docker" "start" "-a" "691423730de94c1c543186b91a3c0f4b457e2461d17a867a8b2689b97e45b656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "691423730de94c1c543186b91a3c0f4b457e2461d17a867a8b2689b97e45b656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "691423730de94c1c543186b91a3c0f4b457e2461d17a867a8b2689b97e45b656", kill_on_drop: false }`
[INFO] [stdout] 691423730de94c1c543186b91a3c0f4b457e2461d17a867a8b2689b97e45b656
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a65336411b5fc72e166a5c7246400c08ee0c7c6b330fb5a49e5889dc9e5c6fb2
[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" "a65336411b5fc72e166a5c7246400c08ee0c7c6b330fb5a49e5889dc9e5c6fb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking time v0.1.44
[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 10.66s
[INFO] running `Command { std: "docker" "inspect" "a65336411b5fc72e166a5c7246400c08ee0c7c6b330fb5a49e5889dc9e5c6fb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a65336411b5fc72e166a5c7246400c08ee0c7c6b330fb5a49e5889dc9e5c6fb2", kill_on_drop: false }`
[INFO] [stdout] a65336411b5fc72e166a5c7246400c08ee0c7c6b330fb5a49e5889dc9e5c6fb2