[INFO] fetching crate fast_log 1.6.10...
[INFO] checking fast_log-1.6.10 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate fast_log 1.6.10 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate fast_log 1.6.10 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fast_log 1.6.10
[INFO] finished tweaking crates.io crate fast_log 1.6.10
[INFO] tweaked toml for crates.io crate fast_log 1.6.10 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 92 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding constant_time_eq v0.1.5 (latest: v0.3.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding password-hash v0.4.2 (latest: v0.5.0)
[INFO] [stderr]       Adding pbkdf2 v0.11.0 (latest: v0.12.2)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding zstd v0.11.2+zstd.1.5.2 (latest: v0.13.1)
[INFO] [stderr]       Adding zstd-safe v5.0.2+zstd.1.5.2 (latest: v7.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded twox-hash v1.6.3
[INFO] [stderr]   Downloaded lz4_flex v0.11.3
[INFO] [stderr]   Downloaded dark-std v0.2.11
[INFO] [stderr]   Downloaded fastdate v0.3.28
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89e14a1f00f6807bc7ad54b0a4a30e84c927748398795dcc65b55df2af65a7a9
[INFO] running `Command { std: "docker" "start" "-a" "89e14a1f00f6807bc7ad54b0a4a30e84c927748398795dcc65b55df2af65a7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89e14a1f00f6807bc7ad54b0a4a30e84c927748398795dcc65b55df2af65a7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89e14a1f00f6807bc7ad54b0a4a30e84c927748398795dcc65b55df2af65a7a9", kill_on_drop: false }`
[INFO] [stdout] 89e14a1f00f6807bc7ad54b0a4a30e84c927748398795dcc65b55df2af65a7a9
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6744cd3aa7baf5311e168c8eed6a38981a1f76410b35402bf8623ea2c4fb8ba1
[INFO] running `Command { std: "docker" "start" "-a" "6744cd3aa7baf5311e168c8eed6a38981a1f76410b35402bf8623ea2c4fb8ba1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking dark-std v0.2.11
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking fastdate v0.3.28
[INFO] [stderr]     Checking fast_log v1.6.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `bench_black_box` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> benches/log.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(bench_black_box)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bench_black_box` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> benches/log_file.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(bench_black_box)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.29s
[INFO] running `Command { std: "docker" "inspect" "6744cd3aa7baf5311e168c8eed6a38981a1f76410b35402bf8623ea2c4fb8ba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6744cd3aa7baf5311e168c8eed6a38981a1f76410b35402bf8623ea2c4fb8ba1", kill_on_drop: false }`
[INFO] [stdout] 6744cd3aa7baf5311e168c8eed6a38981a1f76410b35402bf8623ea2c4fb8ba1