[INFO] updating cached repository mkulke/kerfuffle
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mkulke/kerfuffle
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mkulke/kerfuffle" "work/ex/beta-1.38-1/sources/1.37.0/gh/mkulke/kerfuffle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mkulke/kerfuffle'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mkulke/kerfuffle" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mkulke/kerfuffle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mkulke/kerfuffle'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7a0390e521108237ac5435d0e351a0c0dfedab0
[INFO] sha for GitHub repo mkulke/kerfuffle: b7a0390e521108237ac5435d0e351a0c0dfedab0
[INFO] validating manifest of mkulke/kerfuffle 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 mkulke/kerfuffle 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 mkulke/kerfuffle
[INFO] finished frobbing mkulke/kerfuffle
[INFO] frobbed toml for mkulke/kerfuffle written to work/ex/beta-1.38-1/sources/1.37.0/gh/mkulke/kerfuffle/Cargo.toml
[INFO] started frobbing mkulke/kerfuffle
[INFO] finished frobbing mkulke/kerfuffle
[INFO] frobbed toml for mkulke/kerfuffle written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mkulke/kerfuffle/Cargo.toml
[INFO] crate mkulke/kerfuffle 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 mkulke/kerfuffle 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/gh/mkulke/kerfuffle:/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] ef30b09159708bdcbd0bc6b809f128b2663e0969cd5e65ee7c20d5d4b986b393
[INFO] running `"docker" "start" "-a" "ef30b09159708bdcbd0bc6b809f128b2663e0969cd5e65ee7c20d5d4b986b393"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tower-service v0.2.0 (https://github.com/tower-rs/tower#7b61c1fc)
[INFO] [stderr]    Compiling tower-direct-service v0.1.0 (https://github.com/tower-rs/tower#7b61c1fc)
[INFO] [stderr]    Compiling codegen v0.1.0 (https://github.com/carllerche/codegen#2d4dcc96)
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling prost v0.4.0
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling http v0.1.14
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling tower-util v0.1.0 (https://github.com/tower-rs/tower#7b61c1fc)
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-connect v0.1.0 (https://github.com/carllerche/tokio-connect#f7ad1ca4)
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling tokio-reactor v0.1.7
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.4
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling tokio-threadpool v0.1.9
[INFO] [stderr]    Compiling tower-add-origin v0.1.0 (https://github.com/tower-rs/tower-http#3599ce02)
[INFO] [stderr]    Compiling h2 v0.1.14
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling tower-http v0.1.0 (https://github.com/tower-rs/tower-http#3599ce02)
[INFO] [stderr]    Compiling prost-build v0.4.0
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling prost-derive v0.4.0
[INFO] [stderr]    Compiling tokio v0.1.13
[INFO] [stderr]    Compiling tower-h2 v0.1.0 (https://github.com/tower-rs/tower-h2#53d42498)
[INFO] [stderr]    Compiling tower-grpc v0.1.0 (https://github.com/tower-rs/tower-grpc.git#a5959c92)
[INFO] [stderr]    Compiling prost-types v0.4.0
[INFO] [stderr]    Compiling tower-grpc-build v0.1.0 (https://github.com/tower-rs/tower-grpc.git#a5959c92)
[INFO] [stderr]    Compiling kerfuffle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::net::SocketAddr`
[INFO] [stderr]   --> src/bin/client.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::net::SocketAddr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ConnectFuture`, `TcpStream`
[INFO] [stderr]   --> src/bin/client.rs:17:23
[INFO] [stderr]    |
[INFO] [stderr] 17 | use tokio::net::tcp::{ConnectFuture, TcpStream};
[INFO] [stderr]    |                       ^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::executor::DefaultExecutor`
[INFO] [stderr]   --> src/bin/client.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use tokio::executor::DefaultExecutor;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::Future`
[INFO] [stderr]   --> src/bin/client.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use futures::Future;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tower_h2::client`
[INFO] [stderr]   --> src/bin/client.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use tower_h2::client;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tower_util::MakeService`
[INFO] [stderr]   --> src/bin/client.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use tower_util::MakeService;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tower_grpc::Request`
[INFO] [stderr]   --> src/bin/client.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use tower_grpc::Request;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bail_out`
[INFO] [stderr]    --> src/bin/server.rs:113:1
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn bail_out(err: &Error) -> () {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_random_duration`
[INFO] [stderr]    --> src/bin/server.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn get_random_duration() -> Duration {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bail_out`
[INFO] [stderr]   --> src/bin/client.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn bail_out(err: Error) -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 26s
[INFO] running `"docker" "inspect" "ef30b09159708bdcbd0bc6b809f128b2663e0969cd5e65ee7c20d5d4b986b393"`
[INFO] running `"docker" "rm" "-f" "ef30b09159708bdcbd0bc6b809f128b2663e0969cd5e65ee7c20d5d4b986b393"`
[INFO] [stdout] ef30b09159708bdcbd0bc6b809f128b2663e0969cd5e65ee7c20d5d4b986b393
[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/gh/mkulke/kerfuffle:/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] c6eb4c2351c6e7d7ed294adbdcac7b8a18fca8244b750b2240507f0ff21f3a5a
[INFO] running `"docker" "start" "-a" "c6eb4c2351c6e7d7ed294adbdcac7b8a18fca8244b750b2240507f0ff21f3a5a"`
[INFO] [stderr]    Compiling kerfuffle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `bail_out`
[INFO] [stderr]    --> src/bin/server.rs:113:1
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn bail_out(err: &Error) -> () {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_random_duration`
[INFO] [stderr]    --> src/bin/server.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn get_random_duration() -> Duration {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::SocketAddr`
[INFO] [stderr]   --> src/bin/client.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::net::SocketAddr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ConnectFuture`, `TcpStream`
[INFO] [stderr]   --> src/bin/client.rs:17:23
[INFO] [stderr]    |
[INFO] [stderr] 17 | use tokio::net::tcp::{ConnectFuture, TcpStream};
[INFO] [stderr]    |                       ^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::executor::DefaultExecutor`
[INFO] [stderr]   --> src/bin/client.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use tokio::executor::DefaultExecutor;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::Future`
[INFO] [stderr]   --> src/bin/client.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use futures::Future;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tower_h2::client`
[INFO] [stderr]   --> src/bin/client.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use tower_h2::client;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tower_util::MakeService`
[INFO] [stderr]   --> src/bin/client.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use tower_util::MakeService;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tower_grpc::Request`
[INFO] [stderr]   --> src/bin/client.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use tower_grpc::Request;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bail_out`
[INFO] [stderr]   --> src/bin/client.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn bail_out(err: Error) -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `"docker" "inspect" "c6eb4c2351c6e7d7ed294adbdcac7b8a18fca8244b750b2240507f0ff21f3a5a"`
[INFO] running `"docker" "rm" "-f" "c6eb4c2351c6e7d7ed294adbdcac7b8a18fca8244b750b2240507f0ff21f3a5a"`
[INFO] [stdout] c6eb4c2351c6e7d7ed294adbdcac7b8a18fca8244b750b2240507f0ff21f3a5a
[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/gh/mkulke/kerfuffle:/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] 8f410c4c800cfb9197e1722e7625502bc558a5fe42f3ec40ce65eada7b580d72
[INFO] running `"docker" "start" "-a" "8f410c4c800cfb9197e1722e7625502bc558a5fe42f3ec40ce65eada7b580d72"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/kerfuffle-097b9c255a0250fe
[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] [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/client-a9666f21989c2551
[INFO] [stderr]      Running /opt/crater/target/debug/deps/server-f5655a28eb597da9
[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]    Doc-tests kerfuffle
[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" "8f410c4c800cfb9197e1722e7625502bc558a5fe42f3ec40ce65eada7b580d72"`
[INFO] running `"docker" "rm" "-f" "8f410c4c800cfb9197e1722e7625502bc558a5fe42f3ec40ce65eada7b580d72"`
[INFO] [stdout] 8f410c4c800cfb9197e1722e7625502bc558a5fe42f3ec40ce65eada7b580d72