[INFO] fetching crate tc-btree 0.8.0...
[INFO] testing tc-btree-0.8.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tc-btree 0.8.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tc-btree 0.8.0
[INFO] finished tweaking crates.io crate tc-btree 0.8.0
[INFO] tweaked toml for crates.io crate tc-btree 0.8.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tc-btree 0.8.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 126 packages to latest compatible versions
[INFO] [stderr]       Adding collate v0.2.4 (available: v0.4.2)
[INFO] [stderr]       Adding destream v0.5.2 (available: v0.9.0)
[INFO] [stderr]       Adding safecast v0.1.4 (available: v0.2.3)
[INFO] [stderr]       Adding tc-error v0.7.0 (available: v0.12.0)
[INFO] [stderr]       Adding tc-transact v0.16.0 (available: v0.21.1)
[INFO] [stderr]       Adding tc-value v0.8.0 (available: v0.13.1)
[INFO] [stderr]       Adding tcgeneric v0.6.0 (available: v0.11.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d5acb8b87dd573fbd7021182e68ac9ba50b66cb8298108c8e52667491ba0830
[INFO] running `Command { std: "docker" "start" "-a" "7d5acb8b87dd573fbd7021182e68ac9ba50b66cb8298108c8e52667491ba0830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d5acb8b87dd573fbd7021182e68ac9ba50b66cb8298108c8e52667491ba0830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d5acb8b87dd573fbd7021182e68ac9ba50b66cb8298108c8e52667491ba0830", kill_on_drop: false }`
[INFO] [stdout] 7d5acb8b87dd573fbd7021182e68ac9ba50b66cb8298108c8e52667491ba0830
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdcd4cd4d9fd7cabc958a2ce8293fabe55a508fc1dd9e3bf174e5e6dcfae59c9
[INFO] running `Command { std: "docker" "start" "-a" "bdcd4cd4d9fd7cabc958a2ce8293fabe55a508fc1dd9e3bf174e5e6dcfae59c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.104
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stdout] error: multiple release_max_level_* features set
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/log-0.4.28/src/lib.rs:390:1
[INFO] [stdout]     |
[INFO] [stdout] 390 | compile_error!("multiple release_max_level_* features set");
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr] error: could not compile `log` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bdcd4cd4d9fd7cabc958a2ce8293fabe55a508fc1dd9e3bf174e5e6dcfae59c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdcd4cd4d9fd7cabc958a2ce8293fabe55a508fc1dd9e3bf174e5e6dcfae59c9", kill_on_drop: false }`
[INFO] [stdout] bdcd4cd4d9fd7cabc958a2ce8293fabe55a508fc1dd9e3bf174e5e6dcfae59c9