[INFO] updating cached repository themultiplexer/rust-fft-spectrum
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/themultiplexer/rust-fft-spectrum
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/themultiplexer/rust-fft-spectrum" "work/ex/beta-1.38-1/sources/1.37.0/gh/themultiplexer/rust-fft-spectrum"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/themultiplexer/rust-fft-spectrum'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/themultiplexer/rust-fft-spectrum" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/themultiplexer/rust-fft-spectrum"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/themultiplexer/rust-fft-spectrum'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c0872271d35a0de16eaca62af1fbcbd6c461aa7e
[INFO] sha for GitHub repo themultiplexer/rust-fft-spectrum: c0872271d35a0de16eaca62af1fbcbd6c461aa7e
[INFO] validating manifest of themultiplexer/rust-fft-spectrum on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of themultiplexer/rust-fft-spectrum on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing themultiplexer/rust-fft-spectrum
[INFO] finished frobbing themultiplexer/rust-fft-spectrum
[INFO] frobbed toml for themultiplexer/rust-fft-spectrum written to work/ex/beta-1.38-1/sources/1.37.0/gh/themultiplexer/rust-fft-spectrum/Cargo.toml
[INFO] started frobbing themultiplexer/rust-fft-spectrum
[INFO] finished frobbing themultiplexer/rust-fft-spectrum
[INFO] frobbed toml for themultiplexer/rust-fft-spectrum written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/themultiplexer/rust-fft-spectrum/Cargo.toml
[INFO] crate themultiplexer/rust-fft-spectrum already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing themultiplexer/rust-fft-spectrum against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/themultiplexer/rust-fft-spectrum:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] fbbcd0fab855b1165cb06ba5fbdf1316a3ba7fb07776523828ce90349eab1260
[INFO] running `"docker" "start" "-a" "fbbcd0fab855b1165cb06ba5fbdf1316a3ba7fb07776523828ce90349eab1260"`
[INFO] [stderr]    Compiling nb v0.1.1
[INFO] [stderr]    Compiling transpose v0.1.0
[INFO] [stderr]    Compiling strength_reduce v0.2.1
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling embedded-hal v0.2.2
[INFO] [stderr]    Compiling rustfft v3.0.0
[INFO] [stderr]    Compiling ads1x1x v0.1.0
[INFO] [stderr]    Compiling spidev v0.3.0
[INFO] [stderr]    Compiling sysfs_gpio v0.5.3
[INFO] [stderr]    Compiling rust_gpiozero v0.1.0
[INFO] [stderr]    Compiling i2cdev v0.4.1
[INFO] [stderr]    Compiling linux-embedded-hal v0.2.2
[INFO] [stderr]    Compiling fft v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> src/main.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let _dev = adc.destroy_ads1115();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.24s
[INFO] running `"docker" "inspect" "fbbcd0fab855b1165cb06ba5fbdf1316a3ba7fb07776523828ce90349eab1260"`
[INFO] running `"docker" "rm" "-f" "fbbcd0fab855b1165cb06ba5fbdf1316a3ba7fb07776523828ce90349eab1260"`
[INFO] [stdout] fbbcd0fab855b1165cb06ba5fbdf1316a3ba7fb07776523828ce90349eab1260
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/themultiplexer/rust-fft-spectrum:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] f61b2fc17c2820fff7b74841e073fb33bf5abad18e22eedbd3e20aed8024df0a
[INFO] running `"docker" "start" "-a" "f61b2fc17c2820fff7b74841e073fb33bf5abad18e22eedbd3e20aed8024df0a"`
[INFO] [stderr]    Compiling fft v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> src/main.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let _dev = adc.destroy_ads1115();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "f61b2fc17c2820fff7b74841e073fb33bf5abad18e22eedbd3e20aed8024df0a"`
[INFO] running `"docker" "rm" "-f" "f61b2fc17c2820fff7b74841e073fb33bf5abad18e22eedbd3e20aed8024df0a"`
[INFO] [stdout] f61b2fc17c2820fff7b74841e073fb33bf5abad18e22eedbd3e20aed8024df0a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/themultiplexer/rust-fft-spectrum:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c42295169abf771d1f7f6535f2383dd91c73e4202c391a3697e5859ca764641d
[INFO] running `"docker" "start" "-a" "c42295169abf771d1f7f6535f2383dd91c73e4202c391a3697e5859ca764641d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fft-15dc3ba29aff286f
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c42295169abf771d1f7f6535f2383dd91c73e4202c391a3697e5859ca764641d"`
[INFO] running `"docker" "rm" "-f" "c42295169abf771d1f7f6535f2383dd91c73e4202c391a3697e5859ca764641d"`
[INFO] [stdout] c42295169abf771d1f7f6535f2383dd91c73e4202c391a3697e5859ca764641d