[INFO] updating cached repository rust-embedded/cross
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rust-embedded/cross
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-embedded/cross" "work/ex/beta-1.38-1/sources/1.37.0/gh/rust-embedded/cross"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rust-embedded/cross'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-embedded/cross" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rust-embedded/cross"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rust-embedded/cross'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 540dc4f5a1ca8d6d95bbf4da66ce763a2352d36f
[INFO] sha for GitHub repo rust-embedded/cross: 540dc4f5a1ca8d6d95bbf4da66ce763a2352d36f
[INFO] validating manifest of rust-embedded/cross 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 rust-embedded/cross 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 rust-embedded/cross
[INFO] finished frobbing rust-embedded/cross
[INFO] frobbed toml for rust-embedded/cross written to work/ex/beta-1.38-1/sources/1.37.0/gh/rust-embedded/cross/Cargo.toml
[INFO] started frobbing rust-embedded/cross
[INFO] finished frobbing rust-embedded/cross
[INFO] frobbed toml for rust-embedded/cross written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rust-embedded/cross/Cargo.toml
[INFO] crate rust-embedded/cross 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing rust-embedded/cross 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rust-embedded/cross:/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] c64777e545471ce10a47e9e2b87f7d1a57365c13bce74fe4de7284f5c0f77060
[INFO] running `"docker" "start" "-a" "c64777e545471ce10a47e9e2b87f7d1a57365c13bce74fe4de7284f5c0f77060"`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]    Compiling cross v0.1.15-dev (/opt/crater/workdir)
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling error-chain v0.12.0
[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/docker.rs:80:20
[INFO] [stderr]    |
[INFO] [stderr] 80 |     let home_dir = env::home_dir().ok_or_else(|| "couldn't get home directory. Is $HOME not set?")?;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.79s
[INFO] running `"docker" "inspect" "c64777e545471ce10a47e9e2b87f7d1a57365c13bce74fe4de7284f5c0f77060"`
[INFO] running `"docker" "rm" "-f" "c64777e545471ce10a47e9e2b87f7d1a57365c13bce74fe4de7284f5c0f77060"`
[INFO] [stdout] c64777e545471ce10a47e9e2b87f7d1a57365c13bce74fe4de7284f5c0f77060
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rust-embedded/cross:/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] f4ad01879d9410b49243c5479889678838d6fd9e2d1e7bab44f08c9fa020f5d6
[INFO] running `"docker" "start" "-a" "f4ad01879d9410b49243c5479889678838d6fd9e2d1e7bab44f08c9fa020f5d6"`
[INFO] [stderr]    Compiling cross v0.1.15-dev (/opt/crater/workdir)
[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/docker.rs:80:20
[INFO] [stderr]    |
[INFO] [stderr] 80 |     let home_dir = env::home_dir().ok_or_else(|| "couldn't get home directory. Is $HOME not set?")?;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "f4ad01879d9410b49243c5479889678838d6fd9e2d1e7bab44f08c9fa020f5d6"`
[INFO] running `"docker" "rm" "-f" "f4ad01879d9410b49243c5479889678838d6fd9e2d1e7bab44f08c9fa020f5d6"`
[INFO] [stdout] f4ad01879d9410b49243c5479889678838d6fd9e2d1e7bab44f08c9fa020f5d6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rust-embedded/cross:/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] f4a6a8bda79b5b4b5e096c4f6781edb478b2eb9179151f9cf3937a8ac07bbd43
[INFO] running `"docker" "start" "-a" "f4a6a8bda79b5b4b5e096c4f6781edb478b2eb9179151f9cf3937a8ac07bbd43"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cross-00c96ef29f741ca4
[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" "f4a6a8bda79b5b4b5e096c4f6781edb478b2eb9179151f9cf3937a8ac07bbd43"`
[INFO] running `"docker" "rm" "-f" "f4a6a8bda79b5b4b5e096c4f6781edb478b2eb9179151f9cf3937a8ac07bbd43"`
[INFO] [stdout] f4a6a8bda79b5b4b5e096c4f6781edb478b2eb9179151f9cf3937a8ac07bbd43