[INFO] updating cached repository kimikan/miox
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kimikan/miox
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kimikan/miox" "work/ex/beta-1.38-1/sources/1.37.0/gh/kimikan/miox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kimikan/miox'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kimikan/miox" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kimikan/miox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kimikan/miox'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 74c8daa530d2caa733771b0142a7259528cc81d3
[INFO] sha for GitHub repo kimikan/miox: 74c8daa530d2caa733771b0142a7259528cc81d3
[INFO] validating manifest of kimikan/miox 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 kimikan/miox 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 kimikan/miox
[INFO] finished frobbing kimikan/miox
[INFO] frobbed toml for kimikan/miox written to work/ex/beta-1.38-1/sources/1.37.0/gh/kimikan/miox/Cargo.toml
[INFO] started frobbing kimikan/miox
[INFO] finished frobbing kimikan/miox
[INFO] frobbed toml for kimikan/miox written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kimikan/miox/Cargo.toml
[INFO] crate kimikan/miox 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] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kimikan/miox/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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 kimikan/miox 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-2/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/kimikan/miox:/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] 1959225b6830b6307a65175b9a3bd68fe1487654014c3ff64f4cb1696f1f3307
[INFO] running `"docker" "start" "-a" "1959225b6830b6307a65175b9a3bd68fe1487654014c3ff64f4cb1696f1f3307"`
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling miox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `match` head expression
[INFO] [stderr]    --> src/connection.rs:154:15
[INFO] [stderr]     |
[INFO] [stderr] 154 |         match (write_result) {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> src/server.rs:57:45
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 let event_op = self._events.get(i);
[INFO] [stderr]    |                                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Ready::is_error': use UnixReady instead
[INFO] [stderr]   --> src/server.rs:71:18
[INFO] [stderr]    |
[INFO] [stderr] 71 |         if ready.is_error() {
[INFO] [stderr]    |                  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:96:25
[INFO] [stderr]    |
[INFO] [stderr] 96 |             if let Some(mut c) = client {
[INFO] [stderr]    |                         ----^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.29s
[INFO] running `"docker" "inspect" "1959225b6830b6307a65175b9a3bd68fe1487654014c3ff64f4cb1696f1f3307"`
[INFO] running `"docker" "rm" "-f" "1959225b6830b6307a65175b9a3bd68fe1487654014c3ff64f4cb1696f1f3307"`
[INFO] [stdout] 1959225b6830b6307a65175b9a3bd68fe1487654014c3ff64f4cb1696f1f3307
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/kimikan/miox:/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] c477ae471a4f0d4dc421703b6572408ba4f0bdae0b43b091c37f734623419c27
[INFO] running `"docker" "start" "-a" "c477ae471a4f0d4dc421703b6572408ba4f0bdae0b43b091c37f734623419c27"`
[INFO] [stderr]    Compiling miox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `match` head expression
[INFO] [stderr]    --> src/connection.rs:154:15
[INFO] [stderr]     |
[INFO] [stderr] 154 |         match (write_result) {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> src/server.rs:57:45
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 let event_op = self._events.get(i);
[INFO] [stderr]    |                                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Ready::is_error': use UnixReady instead
[INFO] [stderr]   --> src/server.rs:71:18
[INFO] [stderr]    |
[INFO] [stderr] 71 |         if ready.is_error() {
[INFO] [stderr]    |                  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:96:25
[INFO] [stderr]    |
[INFO] [stderr] 96 |             if let Some(mut c) = client {
[INFO] [stderr]    |                         ----^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "c477ae471a4f0d4dc421703b6572408ba4f0bdae0b43b091c37f734623419c27"`
[INFO] running `"docker" "rm" "-f" "c477ae471a4f0d4dc421703b6572408ba4f0bdae0b43b091c37f734623419c27"`
[INFO] [stdout] c477ae471a4f0d4dc421703b6572408ba4f0bdae0b43b091c37f734623419c27
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/kimikan/miox:/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] 3aae17a51b827d89bf0603672e597ffb861f13fd18b6d7f25ec53fec9e67f71a
[INFO] running `"docker" "start" "-a" "3aae17a51b827d89bf0603672e597ffb861f13fd18b6d7f25ec53fec9e67f71a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/miox-bdadb7ebb794abc4
[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" "3aae17a51b827d89bf0603672e597ffb861f13fd18b6d7f25ec53fec9e67f71a"`
[INFO] running `"docker" "rm" "-f" "3aae17a51b827d89bf0603672e597ffb861f13fd18b6d7f25ec53fec9e67f71a"`
[INFO] [stdout] 3aae17a51b827d89bf0603672e597ffb861f13fd18b6d7f25ec53fec9e67f71a