[INFO] updating cached repository kcuzner/backctl-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kcuzner/backctl-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kcuzner/backctl-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/kcuzner/backctl-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kcuzner/backctl-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kcuzner/backctl-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kcuzner/backctl-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kcuzner/backctl-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 36a16f3cf57f9f6595c55261b6651798aaff09c5
[INFO] sha for GitHub repo kcuzner/backctl-rs: 36a16f3cf57f9f6595c55261b6651798aaff09c5
[INFO] validating manifest of kcuzner/backctl-rs 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 kcuzner/backctl-rs 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 kcuzner/backctl-rs
[INFO] finished frobbing kcuzner/backctl-rs
[INFO] frobbed toml for kcuzner/backctl-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/kcuzner/backctl-rs/Cargo.toml
[INFO] started frobbing kcuzner/backctl-rs
[INFO] finished frobbing kcuzner/backctl-rs
[INFO] frobbed toml for kcuzner/backctl-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kcuzner/backctl-rs/Cargo.toml
[INFO] crate kcuzner/backctl-rs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing kcuzner/backctl-rs 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kcuzner/backctl-rs:/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] 288a409960319e420b8960accf0b84f53754a84f4cf5f02a65e929efea2276e6
[INFO] running `"docker" "start" "-a" "288a409960319e420b8960accf0b84f53754a84f4cf5f02a65e929efea2276e6"`
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling udev v0.2.0
[INFO] [stderr]    Compiling backctl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]  --> src/main.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]   |                      ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / error_chain! {
[INFO] [stderr] 15 | |     foreign_links {
[INFO] [stderr] 16 | |         Udev(::udev::Error);
[INFO] [stderr] 17 | |         Io(::io::Error);
[INFO] [stderr] 18 | |         ParseInt(::num::ParseIntError);
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / error_chain! {
[INFO] [stderr] 15 | |     foreign_links {
[INFO] [stderr] 16 | |         Udev(::udev::Error);
[INFO] [stderr] 17 | |         Io(::io::Error);
[INFO] [stderr] 18 | |         ParseInt(::num::ParseIntError);
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.50s
[INFO] running `"docker" "inspect" "288a409960319e420b8960accf0b84f53754a84f4cf5f02a65e929efea2276e6"`
[INFO] running `"docker" "rm" "-f" "288a409960319e420b8960accf0b84f53754a84f4cf5f02a65e929efea2276e6"`
[INFO] [stdout] 288a409960319e420b8960accf0b84f53754a84f4cf5f02a65e929efea2276e6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kcuzner/backctl-rs:/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] dcb73395888ab06436b7c7c3acf68ed908b381149776db8ecbaed1c77ea1f9d5
[INFO] running `"docker" "start" "-a" "dcb73395888ab06436b7c7c3acf68ed908b381149776db8ecbaed1c77ea1f9d5"`
[INFO] [stderr]    Compiling backctl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]  --> src/main.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]   |                      ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / error_chain! {
[INFO] [stderr] 15 | |     foreign_links {
[INFO] [stderr] 16 | |         Udev(::udev::Error);
[INFO] [stderr] 17 | |         Io(::io::Error);
[INFO] [stderr] 18 | |         ParseInt(::num::ParseIntError);
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / error_chain! {
[INFO] [stderr] 15 | |     foreign_links {
[INFO] [stderr] 16 | |         Udev(::udev::Error);
[INFO] [stderr] 17 | |         Io(::io::Error);
[INFO] [stderr] 18 | |         ParseInt(::num::ParseIntError);
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "dcb73395888ab06436b7c7c3acf68ed908b381149776db8ecbaed1c77ea1f9d5"`
[INFO] running `"docker" "rm" "-f" "dcb73395888ab06436b7c7c3acf68ed908b381149776db8ecbaed1c77ea1f9d5"`
[INFO] [stdout] dcb73395888ab06436b7c7c3acf68ed908b381149776db8ecbaed1c77ea1f9d5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kcuzner/backctl-rs:/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] e7fea2e581027111dc1d2c7dede02a121aec3ebc4a26b99b779d1d7f1a0ded9d
[INFO] running `"docker" "start" "-a" "e7fea2e581027111dc1d2c7dede02a121aec3ebc4a26b99b779d1d7f1a0ded9d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/backctl-4b6e5a107587704f
[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" "e7fea2e581027111dc1d2c7dede02a121aec3ebc4a26b99b779d1d7f1a0ded9d"`
[INFO] running `"docker" "rm" "-f" "e7fea2e581027111dc1d2c7dede02a121aec3ebc4a26b99b779d1d7f1a0ded9d"`
[INFO] [stdout] e7fea2e581027111dc1d2c7dede02a121aec3ebc4a26b99b779d1d7f1a0ded9d