[INFO] crate rmb 0.0.2 is already in cache
[INFO] extracting crate rmb 0.0.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/rmb/0.0.2
[INFO] extracting crate rmb 0.0.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rmb/0.0.2
[INFO] validating manifest of rmb-0.0.2 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 rmb-0.0.2 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 rmb-0.0.2
[INFO] finished frobbing rmb-0.0.2
[INFO] frobbed toml for rmb-0.0.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rmb/0.0.2/Cargo.toml
[INFO] started frobbing rmb-0.0.2
[INFO] finished frobbing rmb-0.0.2
[INFO] frobbed toml for rmb-0.0.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rmb/0.0.2/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 rmb-0.0.2 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rmb/0.0.2:/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] 2baa72b047aff917ca8a795e63181ecfb0627fb267503148dce9d40db6a13739
[INFO] running `"docker" "start" "-a" "2baa72b047aff917ca8a795e63181ecfb0627fb267503148dce9d40db6a13739"`
[INFO] [stderr]    Compiling subprocess v0.1.18
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rmb v0.0.2 (/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/app.rs:89:20
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let home_dir = env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] 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/store.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut home = env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/app.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |         let mut value = b.unwrap();
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.95s
[INFO] running `"docker" "inspect" "2baa72b047aff917ca8a795e63181ecfb0627fb267503148dce9d40db6a13739"`
[INFO] running `"docker" "rm" "-f" "2baa72b047aff917ca8a795e63181ecfb0627fb267503148dce9d40db6a13739"`
[INFO] [stdout] 2baa72b047aff917ca8a795e63181ecfb0627fb267503148dce9d40db6a13739
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rmb/0.0.2:/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] 5bc5a38f5ad3cd21fd8a44f83eedd2ef45c51fa3f7482246ecd44b866cd0339c
[INFO] running `"docker" "start" "-a" "5bc5a38f5ad3cd21fd8a44f83eedd2ef45c51fa3f7482246ecd44b866cd0339c"`
[INFO] [stderr]    Compiling rmb v0.0.2 (/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/app.rs:89:20
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let home_dir = env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] 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/store.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut home = env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/app.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |         let mut value = b.unwrap();
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "5bc5a38f5ad3cd21fd8a44f83eedd2ef45c51fa3f7482246ecd44b866cd0339c"`
[INFO] running `"docker" "rm" "-f" "5bc5a38f5ad3cd21fd8a44f83eedd2ef45c51fa3f7482246ecd44b866cd0339c"`
[INFO] [stdout] 5bc5a38f5ad3cd21fd8a44f83eedd2ef45c51fa3f7482246ecd44b866cd0339c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rmb/0.0.2:/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] 1952036d30176482170c96ec6917a128d7f4c022d9c283fbbc9ba8a82d94e6a8
[INFO] running `"docker" "start" "-a" "1952036d30176482170c96ec6917a128d7f4c022d9c283fbbc9ba8a82d94e6a8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rmb-1d291a378c21ad32
[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" "1952036d30176482170c96ec6917a128d7f4c022d9c283fbbc9ba8a82d94e6a8"`
[INFO] running `"docker" "rm" "-f" "1952036d30176482170c96ec6917a128d7f4c022d9c283fbbc9ba8a82d94e6a8"`
[INFO] [stdout] 1952036d30176482170c96ec6917a128d7f4c022d9c283fbbc9ba8a82d94e6a8