[INFO] updating cached repository rust-lang-nursery/cargo-bisect-rustc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rust-lang-nursery/cargo-bisect-rustc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-lang-nursery/cargo-bisect-rustc" "work/ex/beta-1.37-6/sources/1.36.0/gh/rust-lang-nursery/cargo-bisect-rustc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/rust-lang-nursery/cargo-bisect-rustc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-lang-nursery/cargo-bisect-rustc" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rust-lang-nursery/cargo-bisect-rustc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rust-lang-nursery/cargo-bisect-rustc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be941d7d3e15f0ee795c3394fde663b23d5820fc
[INFO] sha for GitHub repo rust-lang-nursery/cargo-bisect-rustc: be941d7d3e15f0ee795c3394fde663b23d5820fc
[INFO] validating manifest of rust-lang-nursery/cargo-bisect-rustc 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 rust-lang-nursery/cargo-bisect-rustc 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 rust-lang-nursery/cargo-bisect-rustc
[INFO] finished frobbing rust-lang-nursery/cargo-bisect-rustc
[INFO] frobbed toml for rust-lang-nursery/cargo-bisect-rustc written to work/ex/beta-1.37-6/sources/1.36.0/gh/rust-lang-nursery/cargo-bisect-rustc/Cargo.toml
[INFO] started frobbing rust-lang-nursery/cargo-bisect-rustc
[INFO] finished frobbing rust-lang-nursery/cargo-bisect-rustc
[INFO] frobbed toml for rust-lang-nursery/cargo-bisect-rustc written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rust-lang-nursery/cargo-bisect-rustc/Cargo.toml
[INFO] crate rust-lang-nursery/cargo-bisect-rustc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing rust-lang-nursery/cargo-bisect-rustc 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/gh/rust-lang-nursery/cargo-bisect-rustc:/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] 8c2b376f13367102f76800df67c42593b16054957e2a22baf36dc51d08fef624
[INFO] running `"docker" "start" "-a" "8c2b376f13367102f76800df67c42593b16054957e2a22baf36dc51d08fef624"`
[INFO] [stderr]    Compiling cargo-bisect-rustc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling tee v0.1.0
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.15
[INFO] [stderr]    Compiling backtrace-sys v0.1.26
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]    Compiling lzma-sys v0.1.12
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling clicolors-control v0.3.1
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling pbr v1.0.1
[INFO] [stderr]    Compiling serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling tar v0.4.20
[INFO] [stderr]    Compiling env_logger v0.6.0
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling tokio-threadpool v0.1.9
[INFO] [stderr]    Compiling openssl v0.10.16
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling xz2 v0.1.6
[INFO] [stderr]    Compiling flate2 v1.0.6
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling h2 v0.1.14
[INFO] [stderr]    Compiling tokio-reactor v0.1.7
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling console v0.7.1
[INFO] [stderr]    Compiling structopt v0.2.14
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.4
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling dialoguer v0.3.0
[INFO] [stderr]    Compiling tokio v0.1.13
[INFO] [stderr]    Compiling hyper v0.12.18
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling reqwest v0.9.5
[INFO] [stderr]    Compiling git2 v0.8.0
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]    --> src/main.rs:648:32
[INFO] [stderr]     |
[INFO] [stderr] 648 |                 let mut home = env::home_dir().ok_or_else(|| format_err!("Could not find home."))?;
[INFO] [stderr]     |                                ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 33s
[INFO] running `"docker" "inspect" "8c2b376f13367102f76800df67c42593b16054957e2a22baf36dc51d08fef624"`
[INFO] running `"docker" "rm" "-f" "8c2b376f13367102f76800df67c42593b16054957e2a22baf36dc51d08fef624"`
[INFO] [stdout] 8c2b376f13367102f76800df67c42593b16054957e2a22baf36dc51d08fef624
[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/gh/rust-lang-nursery/cargo-bisect-rustc:/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] d8a40dbd2140b33f788b8dd3c2a17f6d42f60d88c9ffab61dd9a8d3b2491e1c4
[INFO] running `"docker" "start" "-a" "d8a40dbd2140b33f788b8dd3c2a17f6d42f60d88c9ffab61dd9a8d3b2491e1c4"`
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling quickcheck v0.7.2
[INFO] [stderr]    Compiling cargo-bisect-rustc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]    --> src/main.rs:648:32
[INFO] [stderr]     |
[INFO] [stderr] 648 |                 let mut home = env::home_dir().ok_or_else(|| format_err!("Could not find home."))?;
[INFO] [stderr]     |                                ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.90s
[INFO] running `"docker" "inspect" "d8a40dbd2140b33f788b8dd3c2a17f6d42f60d88c9ffab61dd9a8d3b2491e1c4"`
[INFO] running `"docker" "rm" "-f" "d8a40dbd2140b33f788b8dd3c2a17f6d42f60d88c9ffab61dd9a8d3b2491e1c4"`
[INFO] [stdout] d8a40dbd2140b33f788b8dd3c2a17f6d42f60d88c9ffab61dd9a8d3b2491e1c4
[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/gh/rust-lang-nursery/cargo-bisect-rustc:/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] fe02e57e99b6613249b17ab344b05ee7760cdc04aaeb11715441b2ee3ab8326b
[INFO] running `"docker" "start" "-a" "fe02e57e99b6613249b17ab344b05ee7760cdc04aaeb11715441b2ee3ab8326b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cargo_bisect_rustc-71751455481e7cf7
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test least_satisfying::tests::least_satisfying_6 ... ok
[INFO] [stdout] test least_satisfying::tests::least_satisfying_5 ... ok
[INFO] [stdout] test least_satisfying::tests::least_satisfying_4 ... ok
[INFO] [stdout] test least_satisfying::tests::least_satisfying_2 ... ok
[INFO] [stdout] test least_satisfying::tests::least_satisfying_3 ... ok
[INFO] [stdout] test least_satisfying::tests::least_satisfying_8 ... ok
[INFO] [stdout] test least_satisfying::tests::least_satisfying_7 ... ok
[INFO] [stdout] test least_satisfying::tests::least_satisfying_1 ... ok
[INFO] [stdout] test least_satisfying::tests::qc_prop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "fe02e57e99b6613249b17ab344b05ee7760cdc04aaeb11715441b2ee3ab8326b"`
[INFO] running `"docker" "rm" "-f" "fe02e57e99b6613249b17ab344b05ee7760cdc04aaeb11715441b2ee3ab8326b"`
[INFO] [stdout] fe02e57e99b6613249b17ab344b05ee7760cdc04aaeb11715441b2ee3ab8326b