[INFO] crate os_utils 0.0.1 is already in cache
[INFO] extracting crate os_utils 0.0.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/os_utils/0.0.1
[INFO] extracting crate os_utils 0.0.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/os_utils/0.0.1
[INFO] validating manifest of os_utils-0.0.1 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 os_utils-0.0.1 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 os_utils-0.0.1
[INFO] finished frobbing os_utils-0.0.1
[INFO] frobbed toml for os_utils-0.0.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/os_utils/0.0.1/Cargo.toml
[INFO] started frobbing os_utils-0.0.1
[INFO] finished frobbing os_utils-0.0.1
[INFO] frobbed toml for os_utils-0.0.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/os_utils/0.0.1/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 os_utils-0.0.1 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-1/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/os_utils/0.0.1:/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] d70f9418b9b6074af607e4ceed3fa40b62a6a57026c197f9e1b651d054d51a51
[INFO] running `"docker" "start" "-a" "d70f9418b9b6074af607e4ceed3fa40b62a6a57026c197f9e1b651d054d51a51"`
[INFO] [stderr]    Compiling os_utils v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "d70f9418b9b6074af607e4ceed3fa40b62a6a57026c197f9e1b651d054d51a51"`
[INFO] running `"docker" "rm" "-f" "d70f9418b9b6074af607e4ceed3fa40b62a6a57026c197f9e1b651d054d51a51"`
[INFO] [stdout] d70f9418b9b6074af607e4ceed3fa40b62a6a57026c197f9e1b651d054d51a51
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/os_utils/0.0.1:/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] b00c71989d3ead6d669e820dfd3ae55d601456cfc7fef1dae2fb8200cd2782bd
[INFO] running `"docker" "start" "-a" "b00c71989d3ead6d669e820dfd3ae55d601456cfc7fef1dae2fb8200cd2782bd"`
[INFO] [stderr]    Compiling os_utils v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `info`
[INFO] [stderr]    --> src/info/mod.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |         let info = OsInfo::get();
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_info`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "b00c71989d3ead6d669e820dfd3ae55d601456cfc7fef1dae2fb8200cd2782bd"`
[INFO] running `"docker" "rm" "-f" "b00c71989d3ead6d669e820dfd3ae55d601456cfc7fef1dae2fb8200cd2782bd"`
[INFO] [stdout] b00c71989d3ead6d669e820dfd3ae55d601456cfc7fef1dae2fb8200cd2782bd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/os_utils/0.0.1:/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] 04ada32910216d4a4b71ad3d0c84f5a39192f138f6f803ddfe6111dc4a54c60e
[INFO] running `"docker" "start" "-a" "04ada32910216d4a4b71ad3d0c84f5a39192f138f6f803ddfe6111dc4a54c60e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/os_utils-dfdc6e9cb5d146cc
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test info::os::linux::ubuntu::tests::cmp ... ok
[INFO] [stdout] test info::tests::get_os_info ... ok
[INFO] [stdout] test version::tests::cmp ... ok
[INFO] [stdout] test version::tests::parse_success ... ok
[INFO] [stdout] test version::tests::parse_failure ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests os_utils
[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" "04ada32910216d4a4b71ad3d0c84f5a39192f138f6f803ddfe6111dc4a54c60e"`
[INFO] running `"docker" "rm" "-f" "04ada32910216d4a4b71ad3d0c84f5a39192f138f6f803ddfe6111dc4a54c60e"`
[INFO] [stdout] 04ada32910216d4a4b71ad3d0c84f5a39192f138f6f803ddfe6111dc4a54c60e