[INFO] fetching crate serde-diff-derive 0.4.0...
[INFO] checking serde-diff-derive-0.4.0 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate serde-diff-derive 0.4.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate serde-diff-derive 0.4.0 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde-diff-derive 0.4.0
[INFO] finished tweaking crates.io crate serde-diff-derive 0.4.0
[INFO] tweaked toml for crates.io crate serde-diff-derive 0.4.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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] 49ed13e317f29a6b330f128c1074b1e9fed8093d5682c64fe1b742ecbf1b3622
[INFO] running `Command { std: "docker" "start" "-a" "49ed13e317f29a6b330f128c1074b1e9fed8093d5682c64fe1b742ecbf1b3622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49ed13e317f29a6b330f128c1074b1e9fed8093d5682c64fe1b742ecbf1b3622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49ed13e317f29a6b330f128c1074b1e9fed8093d5682c64fe1b742ecbf1b3622", kill_on_drop: false }`
[INFO] [stdout] 49ed13e317f29a6b330f128c1074b1e9fed8093d5682c64fe1b742ecbf1b3622
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e7b826d49f43e1cdfa13676980fcda156171c8f9ca9cf5b72aa02d023ac1cbe
[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" "5e7b826d49f43e1cdfa13676980fcda156171c8f9ca9cf5b72aa02d023ac1cbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking proc-macro2 v1.0.24
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking darling v0.10.2
[INFO] [stderr]     Checking serde-diff-derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.55s
[INFO] running `Command { std: "docker" "inspect" "5e7b826d49f43e1cdfa13676980fcda156171c8f9ca9cf5b72aa02d023ac1cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e7b826d49f43e1cdfa13676980fcda156171c8f9ca9cf5b72aa02d023ac1cbe", kill_on_drop: false }`
[INFO] [stdout] 5e7b826d49f43e1cdfa13676980fcda156171c8f9ca9cf5b72aa02d023ac1cbe