[INFO] crate octasonic 0.1.0 is already in cache
[INFO] extracting crate octasonic 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/octasonic/0.1.0
[INFO] extracting crate octasonic 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/octasonic/0.1.0
[INFO] validating manifest of octasonic-0.1.0 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 octasonic-0.1.0 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 octasonic-0.1.0
[INFO] finished frobbing octasonic-0.1.0
[INFO] frobbed toml for octasonic-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/octasonic/0.1.0/Cargo.toml
[INFO] started frobbing octasonic-0.1.0
[INFO] finished frobbing octasonic-0.1.0
[INFO] frobbed toml for octasonic-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/octasonic/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 octasonic-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/octasonic/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 4726ed1af3ba732a643f2fa144c9c95f6237a0505782022a0db7e536b111b284
[INFO] running `"docker" "start" "-a" "4726ed1af3ba732a643f2fa144c9c95f6237a0505782022a0db7e536b111b284"`
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling spidev v0.2.1
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling sysfs_gpio v0.4.4
[INFO] [stderr]    Compiling octasonic v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `"docker" "inspect" "4726ed1af3ba732a643f2fa144c9c95f6237a0505782022a0db7e536b111b284"`
[INFO] running `"docker" "rm" "-f" "4726ed1af3ba732a643f2fa144c9c95f6237a0505782022a0db7e536b111b284"`
[INFO] [stdout] 4726ed1af3ba732a643f2fa144c9c95f6237a0505782022a0db7e536b111b284
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/octasonic/0.1.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 761c44cda1db48a890838f676072e988f45d7a112ec78a45b77a0d48b659eefc
[INFO] running `"docker" "start" "-a" "761c44cda1db48a890838f676072e988f45d7a112ec78a45b77a0d48b659eefc"`
[INFO] [stderr]    Compiling octasonic v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]  --> examples/piano.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread::sleep;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> examples/piano.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]  --> examples/theramin.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread::sleep;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> examples/theramin.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `playing`
[INFO] [stderr]  --> examples/theramin.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   playing: bool,
[INFO] [stderr]   |   ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `counter`
[INFO] [stderr]  --> examples/theramin.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   counter: u8
[INFO] [stderr]   |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "761c44cda1db48a890838f676072e988f45d7a112ec78a45b77a0d48b659eefc"`
[INFO] running `"docker" "rm" "-f" "761c44cda1db48a890838f676072e988f45d7a112ec78a45b77a0d48b659eefc"`
[INFO] [stdout] 761c44cda1db48a890838f676072e988f45d7a112ec78a45b77a0d48b659eefc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/octasonic/0.1.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 8b111ed6336de594b70d237fdd47b9101bc5bfe14256b9501c66e0393afda4d5
[INFO] running `"docker" "start" "-a" "8b111ed6336de594b70d237fdd47b9101bc5bfe14256b9501c66e0393afda4d5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/octasonic-9dbf61c7e7ae61f1
[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] [stderr]    Doc-tests octasonic
[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" "8b111ed6336de594b70d237fdd47b9101bc5bfe14256b9501c66e0393afda4d5"`
[INFO] running `"docker" "rm" "-f" "8b111ed6336de594b70d237fdd47b9101bc5bfe14256b9501c66e0393afda4d5"`
[INFO] [stdout] 8b111ed6336de594b70d237fdd47b9101bc5bfe14256b9501c66e0393afda4d5