[INFO] fetching crate serde-enum-str 0.4.0...
[INFO] checking serde-enum-str-0.4.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate serde-enum-str 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate serde-enum-str 0.4.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde-enum-str 0.4.0
[INFO] finished tweaking crates.io crate serde-enum-str 0.4.0
[INFO] tweaked toml for crates.io crate serde-enum-str 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.14.4 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_core v0.14.4 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_macro v0.14.4 (latest: v0.20.10)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.76)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dfe998909fb2519e882d6ce2059dabd00f64358069f9e7522b5115aaf20d54a
[INFO] running `Command { std: "docker" "start" "-a" "9dfe998909fb2519e882d6ce2059dabd00f64358069f9e7522b5115aaf20d54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dfe998909fb2519e882d6ce2059dabd00f64358069f9e7522b5115aaf20d54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dfe998909fb2519e882d6ce2059dabd00f64358069f9e7522b5115aaf20d54a", kill_on_drop: false }`
[INFO] [stdout] 9dfe998909fb2519e882d6ce2059dabd00f64358069f9e7522b5115aaf20d54a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07e71f4aa70a97cbff5a8a17c82214b15c74f58d88ca2effd199d768c6e4597c
[INFO] running `Command { std: "docker" "start" "-a" "07e71f4aa70a97cbff5a8a17c82214b15c74f58d88ca2effd199d768c6e4597c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking serde-rename-rule v0.2.2
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]     Checking darling_core v0.14.4
[INFO] [stderr]     Checking serde-attributes v0.2.1
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]     Checking darling v0.14.4
[INFO] [stderr]     Checking serde-enum-str v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.127
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.31s
[INFO] running `Command { std: "docker" "inspect" "07e71f4aa70a97cbff5a8a17c82214b15c74f58d88ca2effd199d768c6e4597c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07e71f4aa70a97cbff5a8a17c82214b15c74f58d88ca2effd199d768c6e4597c", kill_on_drop: false }`
[INFO] [stdout] 07e71f4aa70a97cbff5a8a17c82214b15c74f58d88ca2effd199d768c6e4597c