[INFO] updating cached repository shenki/rust-memboot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shenki/rust-memboot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shenki/rust-memboot" "work/ex/beta-1.38-1/sources/1.37.0/gh/shenki/rust-memboot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/shenki/rust-memboot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shenki/rust-memboot" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shenki/rust-memboot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shenki/rust-memboot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5a5670e2b1dae424e01a3ff9ba598993e3994da4
[INFO] sha for GitHub repo shenki/rust-memboot: 5a5670e2b1dae424e01a3ff9ba598993e3994da4
[INFO] validating manifest of shenki/rust-memboot 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 shenki/rust-memboot 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 shenki/rust-memboot
[INFO] finished frobbing shenki/rust-memboot
[INFO] frobbed toml for shenki/rust-memboot written to work/ex/beta-1.38-1/sources/1.37.0/gh/shenki/rust-memboot/Cargo.toml
[INFO] started frobbing shenki/rust-memboot
[INFO] finished frobbing shenki/rust-memboot
[INFO] frobbed toml for shenki/rust-memboot written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shenki/rust-memboot/Cargo.toml
[INFO] crate shenki/rust-memboot 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing shenki/rust-memboot 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shenki/rust-memboot:/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] 6bc0feaca98b843aade3da1071c06a16b990d283df6b9017cff449c3165fe2f0
[INFO] running `"docker" "start" "-a" "6bc0feaca98b843aade3da1071c06a16b990d283df6b9017cff449c3165fe2f0"`
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling memboot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     set_mem_mapping(device.as_raw_fd(), 0x10000, 0x1000);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.12s
[INFO] running `"docker" "inspect" "6bc0feaca98b843aade3da1071c06a16b990d283df6b9017cff449c3165fe2f0"`
[INFO] running `"docker" "rm" "-f" "6bc0feaca98b843aade3da1071c06a16b990d283df6b9017cff449c3165fe2f0"`
[INFO] [stdout] 6bc0feaca98b843aade3da1071c06a16b990d283df6b9017cff449c3165fe2f0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shenki/rust-memboot:/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] 194d926533a091815e97483b9fc9b895242cea2324889bbc424f6301be0467d8
[INFO] running `"docker" "start" "-a" "194d926533a091815e97483b9fc9b895242cea2324889bbc424f6301be0467d8"`
[INFO] [stderr]    Compiling memboot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     set_mem_mapping(device.as_raw_fd(), 0x10000, 0x1000);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "194d926533a091815e97483b9fc9b895242cea2324889bbc424f6301be0467d8"`
[INFO] running `"docker" "rm" "-f" "194d926533a091815e97483b9fc9b895242cea2324889bbc424f6301be0467d8"`
[INFO] [stdout] 194d926533a091815e97483b9fc9b895242cea2324889bbc424f6301be0467d8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shenki/rust-memboot:/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] e512719c1d8e6a5e79d669e233746f54cb0303d488cf686c81be1521364384fa
[INFO] running `"docker" "start" "-a" "e512719c1d8e6a5e79d669e233746f54cb0303d488cf686c81be1521364384fa"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/memboot-a510813ec156f138
[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" "e512719c1d8e6a5e79d669e233746f54cb0303d488cf686c81be1521364384fa"`
[INFO] running `"docker" "rm" "-f" "e512719c1d8e6a5e79d669e233746f54cb0303d488cf686c81be1521364384fa"`
[INFO] [stdout] e512719c1d8e6a5e79d669e233746f54cb0303d488cf686c81be1521364384fa