[INFO] fetching crate serde-enum-str 0.4.0...
[INFO] building serde-enum-str-0.4.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate serde-enum-str 0.4.0 into /workspace/builds/worker-2-tc2/source
[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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-enum-str 0.4.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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 (available: v0.21.3)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ef09a4f86019281623a8e9d4f4eb88fea11dc5c04a6c00e7c7bc1b85e942dc6
[INFO] running `Command { std: "docker" "start" "-a" "7ef09a4f86019281623a8e9d4f4eb88fea11dc5c04a6c00e7c7bc1b85e942dc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ef09a4f86019281623a8e9d4f4eb88fea11dc5c04a6c00e7c7bc1b85e942dc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef09a4f86019281623a8e9d4f4eb88fea11dc5c04a6c00e7c7bc1b85e942dc6", kill_on_drop: false }`
[INFO] [stdout] 7ef09a4f86019281623a8e9d4f4eb88fea11dc5c04a6c00e7c7bc1b85e942dc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 185ba7e9f4f945e5aba6d88d475130a403c8f8369424f09c0d27db1d08bdb325
[INFO] running `Command { std: "docker" "start" "-a" "185ba7e9f4f945e5aba6d88d475130a403c8f8369424f09c0d27db1d08bdb325", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-rename-rule v0.2.2
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling serde-attributes v0.2.1
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling serde-enum-str v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "185ba7e9f4f945e5aba6d88d475130a403c8f8369424f09c0d27db1d08bdb325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "185ba7e9f4f945e5aba6d88d475130a403c8f8369424f09c0d27db1d08bdb325", kill_on_drop: false }`
[INFO] [stdout] 185ba7e9f4f945e5aba6d88d475130a403c8f8369424f09c0d27db1d08bdb325
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90a8b9d79a0faf11fcabf205a8426e7589785c20dd915f7fcf362f9f741bb135
[INFO] running `Command { std: "docker" "start" "-a" "90a8b9d79a0faf11fcabf205a8426e7589785c20dd915f7fcf362f9f741bb135", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde-rename-rule v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling serde-attributes v0.2.1
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling serde-enum-str v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stdout] warning: enum `Foo` is never used
[INFO] [stdout]    --> tests/std.rs:288:10
[INFO] [stdout]     |
[INFO] [stdout] 288 |     enum Foo {
[INFO] [stdout]     |          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Foo` is never used
[INFO] [stdout]    --> tests/std.rs:299:10
[INFO] [stdout]     |
[INFO] [stdout] 299 |     enum Foo {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.70s
[INFO] running `Command { std: "docker" "inspect" "90a8b9d79a0faf11fcabf205a8426e7589785c20dd915f7fcf362f9f741bb135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90a8b9d79a0faf11fcabf205a8426e7589785c20dd915f7fcf362f9f741bb135", kill_on_drop: false }`
[INFO] [stdout] 90a8b9d79a0faf11fcabf205a8426e7589785c20dd915f7fcf362f9f741bb135
