[INFO] crate yht_test_lib 0.2.0 is already in cache
[INFO] extracting crate yht_test_lib 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/yht_test_lib/0.2.0
[INFO] extracting crate yht_test_lib 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yht_test_lib/0.2.0
[INFO] validating manifest of yht_test_lib-0.2.0 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 yht_test_lib-0.2.0 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 yht_test_lib-0.2.0
[INFO] finished frobbing yht_test_lib-0.2.0
[INFO] frobbed toml for yht_test_lib-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/yht_test_lib/0.2.0/Cargo.toml
[INFO] started frobbing yht_test_lib-0.2.0
[INFO] finished frobbing yht_test_lib-0.2.0
[INFO] frobbed toml for yht_test_lib-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yht_test_lib/0.2.0/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 yht_test_lib-0.2.0 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/yht_test_lib/0.2.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 2d88c3219d731360a61cb4aabd48261b0c0432fcf09f24aca3a5ec44b255a98f
[INFO] running `"docker" "start" "-a" "2d88c3219d731360a61cb4aabd48261b0c0432fcf09f24aca3a5ec44b255a98f"`
[INFO] [stderr]    Compiling yht_test_lib v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `private_add`
[INFO] [stderr]  --> src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn private_add(a: i32, b: i32) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `"docker" "inspect" "2d88c3219d731360a61cb4aabd48261b0c0432fcf09f24aca3a5ec44b255a98f"`
[INFO] running `"docker" "rm" "-f" "2d88c3219d731360a61cb4aabd48261b0c0432fcf09f24aca3a5ec44b255a98f"`
[INFO] [stdout] 2d88c3219d731360a61cb4aabd48261b0c0432fcf09f24aca3a5ec44b255a98f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/yht_test_lib/0.2.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 88103fb735af581442f1b327b60929c567ce4b2ceb442d4a55b481aa350427ff
[INFO] running `"docker" "start" "-a" "88103fb735af581442f1b327b60929c567ce4b2ceb442d4a55b481aa350427ff"`
[INFO] [stderr]    Compiling yht_test_lib v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `private_add`
[INFO] [stderr]  --> src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn private_add(a: i32, b: i32) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "88103fb735af581442f1b327b60929c567ce4b2ceb442d4a55b481aa350427ff"`
[INFO] running `"docker" "rm" "-f" "88103fb735af581442f1b327b60929c567ce4b2ceb442d4a55b481aa350427ff"`
[INFO] [stdout] 88103fb735af581442f1b327b60929c567ce4b2ceb442d4a55b481aa350427ff
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/yht_test_lib/0.2.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 5e2edfcc880dd5b46b9c24e409c515c1a1c4fcbb8e1520c57c92e4da75094a53
[INFO] running `"docker" "start" "-a" "5e2edfcc880dd5b46b9c24e409c515c1a1c4fcbb8e1520c57c92e4da75094a53"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/yht_test_lib-99f28b233e2527e1
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::add_sub ... ok
[INFO] [stdout] test tests::add_test ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yht_test_lib
[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" "5e2edfcc880dd5b46b9c24e409c515c1a1c4fcbb8e1520c57c92e4da75094a53"`
[INFO] running `"docker" "rm" "-f" "5e2edfcc880dd5b46b9c24e409c515c1a1c4fcbb8e1520c57c92e4da75094a53"`
[INFO] [stdout] 5e2edfcc880dd5b46b9c24e409c515c1a1c4fcbb8e1520c57c92e4da75094a53