[INFO] updating cached repository cswl/git-all
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cswl/git-all
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cswl/git-all" "work/ex/beta-1.38-1/sources/1.37.0/gh/cswl/git-all"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cswl/git-all'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cswl/git-all" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cswl/git-all"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cswl/git-all'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8b47bee2f21b43674f65fe10716b7725e08730aa
[INFO] sha for GitHub repo cswl/git-all: 8b47bee2f21b43674f65fe10716b7725e08730aa
[INFO] validating manifest of cswl/git-all 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 cswl/git-all 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 cswl/git-all
[INFO] finished frobbing cswl/git-all
[INFO] frobbed toml for cswl/git-all written to work/ex/beta-1.38-1/sources/1.37.0/gh/cswl/git-all/Cargo.toml
[INFO] started frobbing cswl/git-all
[INFO] finished frobbing cswl/git-all
[INFO] frobbed toml for cswl/git-all written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cswl/git-all/Cargo.toml
[INFO] crate cswl/git-all 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] testing cswl/git-all 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cswl/git-all:/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] 8e9f997c42d548bf3177073e9232ff565a0c934ba45affcf5298b9fca2d89e56
[INFO] running `"docker" "start" "-a" "8e9f997c42d548bf3177073e9232ff565a0c934ba45affcf5298b9fca2d89e56"`
[INFO] [stderr]    Compiling subprocess v0.1.12
[INFO] [stderr]    Compiling serde_json v1.0.13
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling git-all v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Error as SerdeError`, `Value`
[INFO] [stderr]   --> src/main.rs:10:18
[INFO] [stderr]    |
[INFO] [stderr] 10 | use serde_json::{Error as SerdeError, Value};
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `PopenConfig`, `Popen`
[INFO] [stderr]   --> src/main.rs:16:24
[INFO] [stderr]    |
[INFO] [stderr] 16 | use subprocess::{Exec, Popen, PopenConfig, Redirection};
[INFO] [stderr]    |                        ^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:65:79
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn init_scan_cache(cwd: &Path, scan_cache: &Path) -> Result<Vec<PathBuf>, Box<Error>> {
[INFO] [stderr]    |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:73:62
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn read_from_scan_cache(p: &str) -> Result<Vec<PathBuf>, Box<Error>> {
[INFO] [stderr]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |     if let Some(matches) = matches.subcommand_matches("status") {
[INFO] [stderr]    |                 ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `exit_status`
[INFO] [stderr]   --> src/main.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let exit_status = Exec::cmd("git")
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_exit_status`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ScanFlags`
[INFO] [stderr]  --> src/scan.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct ScanFlags {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `Symlinks` should have a snake case name
[INFO] [stderr]   --> src/scan.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Symlinks: bool,     // Whether to follow symlinks
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `symlinks`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `TopLevelOnly` should have a snake case name
[INFO] [stderr]   --> src/scan.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     TopLevelOnly: bool, // Whether to stop after first .git repo
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: convert the identifier to snake case: `top_level_only`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.59s
[INFO] running `"docker" "inspect" "8e9f997c42d548bf3177073e9232ff565a0c934ba45affcf5298b9fca2d89e56"`
[INFO] running `"docker" "rm" "-f" "8e9f997c42d548bf3177073e9232ff565a0c934ba45affcf5298b9fca2d89e56"`
[INFO] [stdout] 8e9f997c42d548bf3177073e9232ff565a0c934ba45affcf5298b9fca2d89e56
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cswl/git-all:/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] 1b103cb32092de85d1cb82dce57185c4147863b14e099fac6ef9fc8d1505c4ae
[INFO] running `"docker" "start" "-a" "1b103cb32092de85d1cb82dce57185c4147863b14e099fac6ef9fc8d1505c4ae"`
[INFO] [stderr]    Compiling git-all v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Error as SerdeError`, `Value`
[INFO] [stderr]   --> src/main.rs:10:18
[INFO] [stderr]    |
[INFO] [stderr] 10 | use serde_json::{Error as SerdeError, Value};
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `PopenConfig`, `Popen`
[INFO] [stderr]   --> src/main.rs:16:24
[INFO] [stderr]    |
[INFO] [stderr] 16 | use subprocess::{Exec, Popen, PopenConfig, Redirection};
[INFO] [stderr]    |                        ^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:65:79
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn init_scan_cache(cwd: &Path, scan_cache: &Path) -> Result<Vec<PathBuf>, Box<Error>> {
[INFO] [stderr]    |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:73:62
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn read_from_scan_cache(p: &str) -> Result<Vec<PathBuf>, Box<Error>> {
[INFO] [stderr]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |     if let Some(matches) = matches.subcommand_matches("status") {
[INFO] [stderr]    |                 ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `exit_status`
[INFO] [stderr]   --> src/main.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let exit_status = Exec::cmd("git")
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_exit_status`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ScanFlags`
[INFO] [stderr]  --> src/scan.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct ScanFlags {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `Symlinks` should have a snake case name
[INFO] [stderr]   --> src/scan.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Symlinks: bool,     // Whether to follow symlinks
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `symlinks`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `TopLevelOnly` should have a snake case name
[INFO] [stderr]   --> src/scan.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     TopLevelOnly: bool, // Whether to stop after first .git repo
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: convert the identifier to snake case: `top_level_only`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `"docker" "inspect" "1b103cb32092de85d1cb82dce57185c4147863b14e099fac6ef9fc8d1505c4ae"`
[INFO] running `"docker" "rm" "-f" "1b103cb32092de85d1cb82dce57185c4147863b14e099fac6ef9fc8d1505c4ae"`
[INFO] [stdout] 1b103cb32092de85d1cb82dce57185c4147863b14e099fac6ef9fc8d1505c4ae
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cswl/git-all:/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] e83e02fa18ad810856472c53d4c069e5c8120d69ac9e466890650b7c08ed5e85
[INFO] running `"docker" "start" "-a" "e83e02fa18ad810856472c53d4c069e5c8120d69ac9e466890650b7c08ed5e85"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_all-13ca3d641463ca0a
[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" "e83e02fa18ad810856472c53d4c069e5c8120d69ac9e466890650b7c08ed5e85"`
[INFO] running `"docker" "rm" "-f" "e83e02fa18ad810856472c53d4c069e5c8120d69ac9e466890650b7c08ed5e85"`
[INFO] [stdout] e83e02fa18ad810856472c53d4c069e5c8120d69ac9e466890650b7c08ed5e85