[INFO] crate nrf52 0.4.0 is already in cache
[INFO] extracting crate nrf52 0.4.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/nrf52/0.4.0
[INFO] extracting crate nrf52 0.4.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/nrf52/0.4.0
[INFO] validating manifest of nrf52-0.4.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nrf52-0.4.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nrf52-0.4.0
[INFO] finished frobbing nrf52-0.4.0
[INFO] frobbed toml for nrf52-0.4.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/nrf52/0.4.0/Cargo.toml
[INFO] started frobbing nrf52-0.4.0
[INFO] finished frobbing nrf52-0.4.0
[INFO] frobbed toml for nrf52-0.4.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/nrf52/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nrf52-0.4.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/nrf52/0.4.0:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 97d8f3e11c2efc0149129cfaf7fe10ed8b04352af1510e8273812d16e393083a
[INFO] running `"docker" "start" "-a" "97d8f3e11c2efc0149129cfaf7fe10ed8b04352af1510e8273812d16e393083a"`
[INFO] [stderr]    Compiling nrf52 v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, #[no_mangle] statics always exported`
[INFO] [stderr]     --> src/lib.rs:1463:9
[INFO] [stderr]      |
[INFO] [stderr] 1463 | #[allow(private_no_mangle_statics)]
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]     --> src/lib.rs:3:9
[INFO] [stderr]      |
[INFO] [stderr] 3    | #![deny(warnings)]
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr]      = note: #[warn(renamed_and_removed_lints)] implied by #[warn(warnings)]
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.74s
[INFO] running `"docker" "inspect" "97d8f3e11c2efc0149129cfaf7fe10ed8b04352af1510e8273812d16e393083a"`
[INFO] running `"docker" "rm" "-f" "97d8f3e11c2efc0149129cfaf7fe10ed8b04352af1510e8273812d16e393083a"`
[INFO] [stdout] 97d8f3e11c2efc0149129cfaf7fe10ed8b04352af1510e8273812d16e393083a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/nrf52/0.4.0:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] ac15ba74502f089733fc9539f4fc3d496f9f12d26b46cf5220b703503a3dce75
[INFO] running `"docker" "start" "-a" "ac15ba74502f089733fc9539f4fc3d496f9f12d26b46cf5220b703503a3dce75"`
[INFO] [stderr]    Compiling nrf52 v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, #[no_mangle] statics always exported`
[INFO] [stderr]     --> src/lib.rs:1463:9
[INFO] [stderr]      |
[INFO] [stderr] 1463 | #[allow(private_no_mangle_statics)]
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]     --> src/lib.rs:3:9
[INFO] [stderr]      |
[INFO] [stderr] 3    | #![deny(warnings)]
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr]      = note: #[warn(renamed_and_removed_lints)] implied by #[warn(warnings)]
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.75s
[INFO] running `"docker" "inspect" "ac15ba74502f089733fc9539f4fc3d496f9f12d26b46cf5220b703503a3dce75"`
[INFO] running `"docker" "rm" "-f" "ac15ba74502f089733fc9539f4fc3d496f9f12d26b46cf5220b703503a3dce75"`
[INFO] [stdout] ac15ba74502f089733fc9539f4fc3d496f9f12d26b46cf5220b703503a3dce75
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/nrf52/0.4.0:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 377afa387ff2f916bff5e5243c130f51c95d5cc9a66c2f3ca3bfb737ce1b1c7a
[INFO] running `"docker" "start" "-a" "377afa387ff2f916bff5e5243c130f51c95d5cc9a66c2f3ca3bfb737ce1b1c7a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nrf52-27f79ce750a1165f
[INFO] [stderr]    Doc-tests nrf52
[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] [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" "377afa387ff2f916bff5e5243c130f51c95d5cc9a66c2f3ca3bfb737ce1b1c7a"`
[INFO] running `"docker" "rm" "-f" "377afa387ff2f916bff5e5243c130f51c95d5cc9a66c2f3ca3bfb737ce1b1c7a"`
[INFO] [stdout] 377afa387ff2f916bff5e5243c130f51c95d5cc9a66c2f3ca3bfb737ce1b1c7a