[INFO] fetching crate but 0.0.0...
[INFO] checking but-0.0.0 against try#fcfb0ffc7ed7fc631df1136063939ef648434735 for pr-152543
[INFO] extracting crate but 0.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate but 0.0.0
[INFO] finished tweaking crates.io crate but 0.0.0
[INFO] tweaked toml for crates.io crate but 0.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate but 0.0.0 on toolchain fcfb0ffc7ed7fc631df1136063939ef648434735
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate but 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff308bfb300dab4e588d305d731312d039b1526dbac88314209428a60eeb2c08
[INFO] running `Command { std: "docker" "start" "-a" "ff308bfb300dab4e588d305d731312d039b1526dbac88314209428a60eeb2c08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff308bfb300dab4e588d305d731312d039b1526dbac88314209428a60eeb2c08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff308bfb300dab4e588d305d731312d039b1526dbac88314209428a60eeb2c08", kill_on_drop: false }`
[INFO] [stdout] ff308bfb300dab4e588d305d731312d039b1526dbac88314209428a60eeb2c08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a340cae93dcde2eb669055d823d2ec17ea2ca69aca448a7f5c9ba97d4d8ecac
[INFO] running `Command { std: "docker" "start" "-a" "5a340cae93dcde2eb669055d823d2ec17ea2ca69aca448a7f5c9ba97d4d8ecac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]    Compiling schemars v0.8.22
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking dyn-clone v1.0.19
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking clap_builder v4.5.38
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling rmcp-macros v0.1.5
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling schemars_derive v0.8.22
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tokio v1.45.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking clap v4.5.38
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking rmcp v0.1.5
[INFO] [stderr]     Checking but v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.73s
[INFO] running `Command { std: "docker" "inspect" "5a340cae93dcde2eb669055d823d2ec17ea2ca69aca448a7f5c9ba97d4d8ecac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a340cae93dcde2eb669055d823d2ec17ea2ca69aca448a7f5c9ba97d4d8ecac", kill_on_drop: false }`
[INFO] [stdout] 5a340cae93dcde2eb669055d823d2ec17ea2ca69aca448a7f5c9ba97d4d8ecac