[INFO] updating cached repository Mnpn03/Sardinburk
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Mnpn03/Sardinburk
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Mnpn03/Sardinburk" "work/ex/beta-1.38-1/sources/1.37.0/gh/Mnpn03/Sardinburk"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Mnpn03/Sardinburk'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Mnpn03/Sardinburk" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mnpn03/Sardinburk"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mnpn03/Sardinburk'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f03f744dfaf1a626db407e8a56992f18dfb7a301
[INFO] sha for GitHub repo Mnpn03/Sardinburk: f03f744dfaf1a626db407e8a56992f18dfb7a301
[INFO] validating manifest of Mnpn03/Sardinburk 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 Mnpn03/Sardinburk 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 Mnpn03/Sardinburk
[INFO] finished frobbing Mnpn03/Sardinburk
[INFO] frobbed toml for Mnpn03/Sardinburk written to work/ex/beta-1.38-1/sources/1.37.0/gh/Mnpn03/Sardinburk/Cargo.toml
[INFO] started frobbing Mnpn03/Sardinburk
[INFO] finished frobbing Mnpn03/Sardinburk
[INFO] frobbed toml for Mnpn03/Sardinburk written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mnpn03/Sardinburk/Cargo.toml
[INFO] crate Mnpn03/Sardinburk 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 Mnpn03/Sardinburk 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-3/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/Mnpn03/Sardinburk:/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] 8835433ae5438297593619fccc18cab88a93eef0d4d2cffc5cd55b2b2804d6b1
[INFO] running `"docker" "start" "-a" "8835433ae5438297593619fccc18cab88a93eef0d4d2cffc5cd55b2b2804d6b1"`
[INFO] [stderr]    Compiling rustc-demangle v0.1.6
[INFO] [stderr]    Compiling openssl v0.10.4
[INFO] [stderr]    Compiling openssl-sys v0.9.26
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.9
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling sslhash v0.1.1
[INFO] [stderr]    Compiling sardinburk v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |                 let mut stream = match stream {
[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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:212:9
[INFO] [stderr]     |
[INFO] [stderr] 212 |                 let mut session = Arc::new(ServerSession {
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:129:8
[INFO] [stderr]     |
[INFO] [stderr] 129 |             let mut stream = stream.try_clone()?;
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `user_id`
[INFO] [stderr]   --> src/main.rs:36:2
[INFO] [stderr]    |
[INFO] [stderr] 36 |     user_id: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.18s
[INFO] running `"docker" "inspect" "8835433ae5438297593619fccc18cab88a93eef0d4d2cffc5cd55b2b2804d6b1"`
[INFO] running `"docker" "rm" "-f" "8835433ae5438297593619fccc18cab88a93eef0d4d2cffc5cd55b2b2804d6b1"`
[INFO] [stdout] 8835433ae5438297593619fccc18cab88a93eef0d4d2cffc5cd55b2b2804d6b1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/Mnpn03/Sardinburk:/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] 756f69eb26fb0cd151793f3356f9e6c4e88dca21fbb4c899e32331e016bbe203
[INFO] running `"docker" "start" "-a" "756f69eb26fb0cd151793f3356f9e6c4e88dca21fbb4c899e32331e016bbe203"`
[INFO] [stderr]    Compiling sardinburk v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |                 let mut stream = match stream {
[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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:212:9
[INFO] [stderr]     |
[INFO] [stderr] 212 |                 let mut session = Arc::new(ServerSession {
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:129:8
[INFO] [stderr]     |
[INFO] [stderr] 129 |             let mut stream = stream.try_clone()?;
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `user_id`
[INFO] [stderr]   --> src/main.rs:36:2
[INFO] [stderr]    |
[INFO] [stderr] 36 |     user_id: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "756f69eb26fb0cd151793f3356f9e6c4e88dca21fbb4c899e32331e016bbe203"`
[INFO] running `"docker" "rm" "-f" "756f69eb26fb0cd151793f3356f9e6c4e88dca21fbb4c899e32331e016bbe203"`
[INFO] [stdout] 756f69eb26fb0cd151793f3356f9e6c4e88dca21fbb4c899e32331e016bbe203
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/Mnpn03/Sardinburk:/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] b26eaecd6d6c1b11da0231a7f6af13989c09bd004c820c9f8f6d1e29849a2f17
[INFO] running `"docker" "start" "-a" "b26eaecd6d6c1b11da0231a7f6af13989c09bd004c820c9f8f6d1e29849a2f17"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sardinburk-37bdd5cd6d8dfc80
[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" "b26eaecd6d6c1b11da0231a7f6af13989c09bd004c820c9f8f6d1e29849a2f17"`
[INFO] running `"docker" "rm" "-f" "b26eaecd6d6c1b11da0231a7f6af13989c09bd004c820c9f8f6d1e29849a2f17"`
[INFO] [stdout] b26eaecd6d6c1b11da0231a7f6af13989c09bd004c820c9f8f6d1e29849a2f17