[INFO] updating cached repository fredlahde/kermit
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fredlahde/kermit
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fredlahde/kermit" "work/ex/beta-1.38-1/sources/1.37.0/gh/fredlahde/kermit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fredlahde/kermit'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fredlahde/kermit" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fredlahde/kermit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fredlahde/kermit'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 520044f50fa25a2e5444d5dbd36fa494dced98af
[INFO] sha for GitHub repo fredlahde/kermit: 520044f50fa25a2e5444d5dbd36fa494dced98af
[INFO] validating manifest of fredlahde/kermit 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 fredlahde/kermit 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 fredlahde/kermit
[INFO] finished frobbing fredlahde/kermit
[INFO] frobbed toml for fredlahde/kermit written to work/ex/beta-1.38-1/sources/1.37.0/gh/fredlahde/kermit/Cargo.toml
[INFO] started frobbing fredlahde/kermit
[INFO] finished frobbing fredlahde/kermit
[INFO] frobbed toml for fredlahde/kermit written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fredlahde/kermit/Cargo.toml
[INFO] crate fredlahde/kermit 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 fredlahde/kermit 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-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fredlahde/kermit:/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] b30079c66627914fdb20845fa09605b65d608f33d3d574f584021e22422ebb5f
[INFO] running `"docker" "start" "-a" "b30079c66627914fdb20845fa09605b65d608f33d3d574f584021e22422ebb5f"`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling failure v0.1.2
[INFO] [stderr]    Compiling kermit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let args: Vec<String> = env::args().collect();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ComposeRunner`
[INFO] [stderr]  --> src/compose_runner.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct ComposeRunner {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/compose_scanner.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn new(path: &str) -> ScanResult {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scan`
[INFO] [stderr]   --> src/compose_scanner.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn scan(&self, base_path: &str) -> Result<Vec<ScanResult>, Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_file`
[INFO] [stderr]   --> src/compose_scanner.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn to_file(&self, path: &str, out_file: &str) -> Result<(), Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_compose_directory`
[INFO] [stderr]   --> src/compose_scanner.rs:65:1
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn check_compose_directory(path: &str) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.23s
[INFO] running `"docker" "inspect" "b30079c66627914fdb20845fa09605b65d608f33d3d574f584021e22422ebb5f"`
[INFO] running `"docker" "rm" "-f" "b30079c66627914fdb20845fa09605b65d608f33d3d574f584021e22422ebb5f"`
[INFO] [stdout] b30079c66627914fdb20845fa09605b65d608f33d3d574f584021e22422ebb5f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fredlahde/kermit:/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] 03584ccc1cfea434f4f1fca6b90846215389e792d8d49a638e85bb810d345551
[INFO] running `"docker" "start" "-a" "03584ccc1cfea434f4f1fca6b90846215389e792d8d49a638e85bb810d345551"`
[INFO] [stderr]    Compiling kermit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let args: Vec<String> = env::args().collect();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ComposeRunner`
[INFO] [stderr]  --> src/compose_runner.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct ComposeRunner {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/compose_scanner.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn new(path: &str) -> ScanResult {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scan`
[INFO] [stderr]   --> src/compose_scanner.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn scan(&self, base_path: &str) -> Result<Vec<ScanResult>, Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_file`
[INFO] [stderr]   --> src/compose_scanner.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn to_file(&self, path: &str, out_file: &str) -> Result<(), Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_compose_directory`
[INFO] [stderr]   --> src/compose_scanner.rs:65:1
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn check_compose_directory(path: &str) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "03584ccc1cfea434f4f1fca6b90846215389e792d8d49a638e85bb810d345551"`
[INFO] running `"docker" "rm" "-f" "03584ccc1cfea434f4f1fca6b90846215389e792d8d49a638e85bb810d345551"`
[INFO] [stdout] 03584ccc1cfea434f4f1fca6b90846215389e792d8d49a638e85bb810d345551
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fredlahde/kermit:/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] 1def0b5e25b0969153966d4e81da5f858af3e97c2a9c214688b2b9136b4733d1
[INFO] running `"docker" "start" "-a" "1def0b5e25b0969153966d4e81da5f858af3e97c2a9c214688b2b9136b4733d1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/kermit-2bf51f43948d5c4f
[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" "1def0b5e25b0969153966d4e81da5f858af3e97c2a9c214688b2b9136b4733d1"`
[INFO] running `"docker" "rm" "-f" "1def0b5e25b0969153966d4e81da5f858af3e97c2a9c214688b2b9136b4733d1"`
[INFO] [stdout] 1def0b5e25b0969153966d4e81da5f858af3e97c2a9c214688b2b9136b4733d1