[INFO] fetching crate doublecount 0.8.2...
[INFO] checking doublecount-0.8.2 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate doublecount 0.8.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate doublecount 0.8.2 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate doublecount 0.8.2
[INFO] finished tweaking crates.io crate doublecount 0.8.2
[INFO] tweaked toml for crates.io crate doublecount 0.8.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nanoid v0.3.0
[INFO] [stderr]   Downloaded commodity v0.4.0
[INFO] [stderr]   Downloaded insta v0.16.1
[INFO] [stderr]   Downloaded rust_decimal v1.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 522cbd216d45454bc3e6d3f6a4012a1536047eca5bafa4c8d53db04b29a0f515
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "522cbd216d45454bc3e6d3f6a4012a1536047eca5bafa4c8d53db04b29a0f515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "522cbd216d45454bc3e6d3f6a4012a1536047eca5bafa4c8d53db04b29a0f515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "522cbd216d45454bc3e6d3f6a4012a1536047eca5bafa4c8d53db04b29a0f515", kill_on_drop: false }`
[INFO] [stdout] 522cbd216d45454bc3e6d3f6a4012a1536047eca5bafa4c8d53db04b29a0f515
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 77addfa6c464ab65d34d8bbaa5177e21acc9bde0586c3d8a832bdc2f2cf7b8bf
[INFO] running `Command { std: "docker" "start" "-a" "77addfa6c464ab65d34d8bbaa5177e21acc9bde0586c3d8a832bdc2f2cf7b8bf", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking rust_decimal v1.8.1
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking terminal_size v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stdout] error[E0599]: no method named `powf` found for type `f64` in the current scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust_decimal-1.8.1/src/decimal.rs:2666:34
[INFO] [stdout]      |
[INFO] [stdout] 2666 |             let round_to = 10f64.powf(self.scale() as f64);
[INFO] [stdout]      |                                  ^^^^ method not found in `f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_decimal`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "77addfa6c464ab65d34d8bbaa5177e21acc9bde0586c3d8a832bdc2f2cf7b8bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77addfa6c464ab65d34d8bbaa5177e21acc9bde0586c3d8a832bdc2f2cf7b8bf", kill_on_drop: false }`
[INFO] [stdout] 77addfa6c464ab65d34d8bbaa5177e21acc9bde0586c3d8a832bdc2f2cf7b8bf