[INFO] updating cached repository VitalyAnkh/mock_object
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/VitalyAnkh/mock_object
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/VitalyAnkh/mock_object" "work/ex/beta-1.38-1/sources/1.37.0/gh/VitalyAnkh/mock_object"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/VitalyAnkh/mock_object'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/VitalyAnkh/mock_object" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/VitalyAnkh/mock_object"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/VitalyAnkh/mock_object'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c997e17de1ef46468c629a5ccae434d00e04595b
[INFO] sha for GitHub repo VitalyAnkh/mock_object: c997e17de1ef46468c629a5ccae434d00e04595b
[INFO] validating manifest of VitalyAnkh/mock_object 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 VitalyAnkh/mock_object 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 VitalyAnkh/mock_object
[INFO] finished frobbing VitalyAnkh/mock_object
[INFO] frobbed toml for VitalyAnkh/mock_object written to work/ex/beta-1.38-1/sources/1.37.0/gh/VitalyAnkh/mock_object/Cargo.toml
[INFO] started frobbing VitalyAnkh/mock_object
[INFO] finished frobbing VitalyAnkh/mock_object
[INFO] frobbed toml for VitalyAnkh/mock_object written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/VitalyAnkh/mock_object/Cargo.toml
[INFO] crate VitalyAnkh/mock_object 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing VitalyAnkh/mock_object 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-5/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/VitalyAnkh/mock_object:/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] 7e85d97291d7b5db026cdc89f17f9c6d5151703f39f06f55e3d4fd8e67cd81b1
[INFO] running `"docker" "start" "-a" "7e85d97291d7b5db026cdc89f17f9c6d5151703f39f06f55e3d4fd8e67cd81b1"`
[INFO] [stderr]    Compiling mock_object v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::sync::mpsc`
[INFO] [stderr]  --> src/message_passing.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::mpsc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/main.rs:27:14
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let (tx, rx) = mpsc::channel();
[INFO] [stderr]    |              ^^ help: consider prefixing with an underscore: `_rx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "7e85d97291d7b5db026cdc89f17f9c6d5151703f39f06f55e3d4fd8e67cd81b1"`
[INFO] running `"docker" "rm" "-f" "7e85d97291d7b5db026cdc89f17f9c6d5151703f39f06f55e3d4fd8e67cd81b1"`
[INFO] [stdout] 7e85d97291d7b5db026cdc89f17f9c6d5151703f39f06f55e3d4fd8e67cd81b1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/VitalyAnkh/mock_object:/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] 901328155c155f35399cd68744dd5902aebc280d85627888208bb97208cbe350
[INFO] running `"docker" "start" "-a" "901328155c155f35399cd68744dd5902aebc280d85627888208bb97208cbe350"`
[INFO] [stderr]    Compiling mock_object v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::sync::mpsc`
[INFO] [stderr]  --> src/message_passing.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::mpsc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/main.rs:27:14
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let (tx, rx) = mpsc::channel();
[INFO] [stderr]    |              ^^ help: consider prefixing with an underscore: `_rx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "901328155c155f35399cd68744dd5902aebc280d85627888208bb97208cbe350"`
[INFO] running `"docker" "rm" "-f" "901328155c155f35399cd68744dd5902aebc280d85627888208bb97208cbe350"`
[INFO] [stdout] 901328155c155f35399cd68744dd5902aebc280d85627888208bb97208cbe350
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/VitalyAnkh/mock_object:/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] bdfd21865d10dedf45734d0e6d234ea90847b86fea575f9a657774b9cd25e034
[INFO] running `"docker" "start" "-a" "bdfd21865d10dedf45734d0e6d234ea90847b86fea575f9a657774b9cd25e034"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mock_object-45de53fea29f3157
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::it_send_an_over_75_percent_warning ... ok
[INFO] [stdout] test message_passing::test_message_passing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [stderr]      Running /opt/crater/target/debug/deps/mock_object-81e642f9320d1cf4
[INFO] [stderr]    Doc-tests mock_object
[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" "bdfd21865d10dedf45734d0e6d234ea90847b86fea575f9a657774b9cd25e034"`
[INFO] running `"docker" "rm" "-f" "bdfd21865d10dedf45734d0e6d234ea90847b86fea575f9a657774b9cd25e034"`
[INFO] [stdout] bdfd21865d10dedf45734d0e6d234ea90847b86fea575f9a657774b9cd25e034