[INFO] crate tsk 0.0.0 is already in cache
[INFO] extracting crate tsk 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/tsk/0.0.0
[INFO] extracting crate tsk 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tsk/0.0.0
[INFO] validating manifest of tsk-0.0.0 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 tsk-0.0.0 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 tsk-0.0.0
[INFO] finished frobbing tsk-0.0.0
[INFO] frobbed toml for tsk-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tsk/0.0.0/Cargo.toml
[INFO] started frobbing tsk-0.0.0
[INFO] finished frobbing tsk-0.0.0
[INFO] frobbed toml for tsk-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tsk/0.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] testing tsk-0.0.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tsk/0.0.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 4840b5355b77ed304da20e0b4d29b27cf1c90db3d733bfcfda1af535d2cbf708
[INFO] running `"docker" "start" "-a" "4840b5355b77ed304da20e0b4d29b27cf1c90db3d733bfcfda1af535d2cbf708"`
[INFO] [stderr]    Compiling tsk_lib v0.0.0
[INFO] [stderr]    Compiling tsk v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:41:30
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn backend(&self) -> Box<backends::Backend> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn backends::Backend`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` 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/config.rs:85:29
[INFO] [stderr]    |
[INFO] [stderr] 85 |             Err(_) => match env::home_dir() {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.84s
[INFO] running `"docker" "inspect" "4840b5355b77ed304da20e0b4d29b27cf1c90db3d733bfcfda1af535d2cbf708"`
[INFO] running `"docker" "rm" "-f" "4840b5355b77ed304da20e0b4d29b27cf1c90db3d733bfcfda1af535d2cbf708"`
[INFO] [stdout] 4840b5355b77ed304da20e0b4d29b27cf1c90db3d733bfcfda1af535d2cbf708
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tsk/0.0.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] f812de8e4bb3eddb4f5c17aa266c6f8506cd20a61a31a53410944c47e33c995d
[INFO] running `"docker" "start" "-a" "f812de8e4bb3eddb4f5c17aa266c6f8506cd20a61a31a53410944c47e33c995d"`
[INFO] [stderr]    Compiling tsk v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:41:30
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn backend(&self) -> Box<backends::Backend> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn backends::Backend`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` 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/config.rs:85:29
[INFO] [stderr]    |
[INFO] [stderr] 85 |             Err(_) => match env::home_dir() {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "f812de8e4bb3eddb4f5c17aa266c6f8506cd20a61a31a53410944c47e33c995d"`
[INFO] running `"docker" "rm" "-f" "f812de8e4bb3eddb4f5c17aa266c6f8506cd20a61a31a53410944c47e33c995d"`
[INFO] [stdout] f812de8e4bb3eddb4f5c17aa266c6f8506cd20a61a31a53410944c47e33c995d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tsk/0.0.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] a46dae60f34410114e0d9648603028accefc79f40b321e19da396f1f3cf26ab2
[INFO] running `"docker" "start" "-a" "a46dae60f34410114e0d9648603028accefc79f40b321e19da396f1f3cf26ab2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tsk-ccba4b17d78663b4
[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" "a46dae60f34410114e0d9648603028accefc79f40b321e19da396f1f3cf26ab2"`
[INFO] running `"docker" "rm" "-f" "a46dae60f34410114e0d9648603028accefc79f40b321e19da396f1f3cf26ab2"`
[INFO] [stdout] a46dae60f34410114e0d9648603028accefc79f40b321e19da396f1f3cf26ab2