[INFO] fetching crate serde_flat_regex 0.1.2...
[INFO] checking serde_flat_regex-0.1.2 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate serde_flat_regex 0.1.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate serde_flat_regex 0.1.2
[INFO] finished tweaking crates.io crate serde_flat_regex 0.1.2
[INFO] tweaked toml for crates.io crate serde_flat_regex 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_flat_regex 0.1.2 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 90 packages to latest compatible versions
[INFO] [stderr]       Adding bson v2.15.0 (available: v3.0.0)
[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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5577ada7bf4e8334e8fe48fcfa0fc6ff368d64aef3f43172bd9ccc2e07696df8
[INFO] running `Command { std: "docker" "start" "-a" "5577ada7bf4e8334e8fe48fcfa0fc6ff368d64aef3f43172bd9ccc2e07696df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5577ada7bf4e8334e8fe48fcfa0fc6ff368d64aef3f43172bd9ccc2e07696df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5577ada7bf4e8334e8fe48fcfa0fc6ff368d64aef3f43172bd9ccc2e07696df8", kill_on_drop: false }`
[INFO] [stdout] 5577ada7bf4e8334e8fe48fcfa0fc6ff368d64aef3f43172bd9ccc2e07696df8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e9fb80a9b9a601a10683571401d489dee24544b9e5290c7852022b3f7d7a106
[INFO] running `Command { std: "docker" "start" "-a" "8e9fb80a9b9a601a10683571401d489dee24544b9e5290c7852022b3f7d7a106", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking time v0.3.43
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]     Checking darling v0.14.4
[INFO] [stderr]     Checking serde_flat_regex v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]     Checking serde_spanned v1.0.0
[INFO] [stderr]     Checking toml_datetime v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking uuid v1.18.1
[INFO] [stderr]     Checking serde_bytes v0.11.17
[INFO] [stderr]     Checking toml v0.9.5
[INFO] [stderr]     Checking bson v2.15.0
[INFO] [stderr]     Checking trybuild v1.0.110
[INFO] [stderr]    Compiling regex v1.11.2
[INFO] [stdout] warning: function `as_str` is never used
[INFO] [stdout]   --> tests/macro_test.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn as_str(s: &String) -> Result<&str, Utf8Error> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.73s
[INFO] running `Command { std: "docker" "inspect" "8e9fb80a9b9a601a10683571401d489dee24544b9e5290c7852022b3f7d7a106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e9fb80a9b9a601a10683571401d489dee24544b9e5290c7852022b3f7d7a106", kill_on_drop: false }`
[INFO] [stdout] 8e9fb80a9b9a601a10683571401d489dee24544b9e5290c7852022b3f7d7a106