[INFO] fetching crate serde_yaml 0.8.19...
[INFO] checking serde_yaml-0.8.19 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate serde_yaml 0.8.19 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate serde_yaml 0.8.19 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_yaml 0.8.19
[INFO] finished tweaking crates.io crate serde_yaml 0.8.19
[INFO] tweaked toml for crates.io crate serde_yaml 0.8.19 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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] 3511a70a3b8206212e093027a7fff7a6de3fde1d01d849706529f6d7e73259f3
[INFO] running `Command { std: "docker" "start" "-a" "3511a70a3b8206212e093027a7fff7a6de3fde1d01d849706529f6d7e73259f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3511a70a3b8206212e093027a7fff7a6de3fde1d01d849706529f6d7e73259f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3511a70a3b8206212e093027a7fff7a6de3fde1d01d849706529f6d7e73259f3", kill_on_drop: false }`
[INFO] [stdout] 3511a70a3b8206212e093027a7fff7a6de3fde1d01d849706529f6d7e73259f3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 58d70e1204fa154016534fe2a76c2fd8a94052f18590c9e9a3964ae12465f9f4
[INFO] running `Command { std: "docker" "start" "-a" "58d70e1204fa154016534fe2a76c2fd8a94052f18590c9e9a3964ae12465f9f4", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.128
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking serde_yaml v0.8.19 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/test_visitor.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/test_de.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/test_value.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/test_error.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/test_serde.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.62s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking serde_yaml v0.8.19 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "58d70e1204fa154016534fe2a76c2fd8a94052f18590c9e9a3964ae12465f9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58d70e1204fa154016534fe2a76c2fd8a94052f18590c9e9a3964ae12465f9f4", kill_on_drop: false }`
[INFO] [stdout] 58d70e1204fa154016534fe2a76c2fd8a94052f18590c9e9a3964ae12465f9f4