[INFO] updating cached repository morgenm/joe-bbm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/morgenm/joe-bbm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/morgenm/joe-bbm" "work/ex/beta-1.38-1/sources/1.37.0/gh/morgenm/joe-bbm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/morgenm/joe-bbm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/morgenm/joe-bbm" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/morgenm/joe-bbm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/morgenm/joe-bbm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 00db4795d1ace7cc638bebb1646043635630b60e
[INFO] sha for GitHub repo morgenm/joe-bbm: 00db4795d1ace7cc638bebb1646043635630b60e
[INFO] validating manifest of morgenm/joe-bbm 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 morgenm/joe-bbm 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 morgenm/joe-bbm
[INFO] finished frobbing morgenm/joe-bbm
[INFO] frobbed toml for morgenm/joe-bbm written to work/ex/beta-1.38-1/sources/1.37.0/gh/morgenm/joe-bbm/Cargo.toml
[INFO] started frobbing morgenm/joe-bbm
[INFO] finished frobbing morgenm/joe-bbm
[INFO] frobbed toml for morgenm/joe-bbm written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/morgenm/joe-bbm/Cargo.toml
[INFO] crate morgenm/joe-bbm 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 morgenm/joe-bbm 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-4/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/morgenm/joe-bbm:/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] ed7f995abc0a82f82e984d816a4adaf5f3aeaafc0959da450c4da16fb823c90d
[INFO] running `"docker" "start" "-a" "ed7f995abc0a82f82e984d816a4adaf5f3aeaafc0959da450c4da16fb823c90d"`
[INFO] [stderr]    Compiling args v2.2.0
[INFO] [stderr]    Compiling dirs-sys v0.3.3
[INFO] [stderr]    Compiling dirs v2.0.1
[INFO] [stderr]    Compiling joe-bbm v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:141:13
[INFO] [stderr]     |
[INFO] [stderr] 141 |         Err(e) => String::from("~")
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `"docker" "inspect" "ed7f995abc0a82f82e984d816a4adaf5f3aeaafc0959da450c4da16fb823c90d"`
[INFO] running `"docker" "rm" "-f" "ed7f995abc0a82f82e984d816a4adaf5f3aeaafc0959da450c4da16fb823c90d"`
[INFO] [stdout] ed7f995abc0a82f82e984d816a4adaf5f3aeaafc0959da450c4da16fb823c90d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/morgenm/joe-bbm:/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] 5f056ca8e1a9eb6a87bd0f555e55076215aa90f6f31ed2304c71cefa686c99ba
[INFO] running `"docker" "start" "-a" "5f056ca8e1a9eb6a87bd0f555e55076215aa90f6f31ed2304c71cefa686c99ba"`
[INFO] [stderr]    Compiling joe-bbm v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:141:13
[INFO] [stderr]     |
[INFO] [stderr] 141 |         Err(e) => String::from("~")
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "5f056ca8e1a9eb6a87bd0f555e55076215aa90f6f31ed2304c71cefa686c99ba"`
[INFO] running `"docker" "rm" "-f" "5f056ca8e1a9eb6a87bd0f555e55076215aa90f6f31ed2304c71cefa686c99ba"`
[INFO] [stdout] 5f056ca8e1a9eb6a87bd0f555e55076215aa90f6f31ed2304c71cefa686c99ba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/morgenm/joe-bbm:/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] 5ada39b7b82173f51c7e6d17955640f5981dd8304c1f2559e63f1897c8429543
[INFO] running `"docker" "start" "-a" "5ada39b7b82173f51c7e6d17955640f5981dd8304c1f2559e63f1897c8429543"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/joe_bbm-cc273a7a27c82b07
[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" "5ada39b7b82173f51c7e6d17955640f5981dd8304c1f2559e63f1897c8429543"`
[INFO] running `"docker" "rm" "-f" "5ada39b7b82173f51c7e6d17955640f5981dd8304c1f2559e63f1897c8429543"`
[INFO] [stdout] 5ada39b7b82173f51c7e6d17955640f5981dd8304c1f2559e63f1897c8429543