[INFO] updating cached repository fhbzyc/rust_practise
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fhbzyc/rust_practise
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fhbzyc/rust_practise" "work/ex/beta-1.38-1/sources/1.37.0/gh/fhbzyc/rust_practise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fhbzyc/rust_practise'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fhbzyc/rust_practise" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fhbzyc/rust_practise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fhbzyc/rust_practise'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6e09ed4eda7142857a9d0a47a648cb1fec1f8f55
[INFO] sha for GitHub repo fhbzyc/rust_practise: 6e09ed4eda7142857a9d0a47a648cb1fec1f8f55
[INFO] validating manifest of fhbzyc/rust_practise 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 fhbzyc/rust_practise 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 fhbzyc/rust_practise
[INFO] finished frobbing fhbzyc/rust_practise
[INFO] frobbed toml for fhbzyc/rust_practise written to work/ex/beta-1.38-1/sources/1.37.0/gh/fhbzyc/rust_practise/Cargo.toml
[INFO] started frobbing fhbzyc/rust_practise
[INFO] finished frobbing fhbzyc/rust_practise
[INFO] frobbed toml for fhbzyc/rust_practise written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fhbzyc/rust_practise/Cargo.toml
[INFO] crate fhbzyc/rust_practise 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 fhbzyc/rust_practise 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/fhbzyc/rust_practise:/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] 502c0033a544a0b9b07049846996700f90709871a912d3bf89375342a23d06c2
[INFO] running `"docker" "start" "-a" "502c0033a544a0b9b07049846996700f90709871a912d3bf89375342a23d06c2"`
[INFO] [stderr]    Compiling server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread_pool/thread_pool.rs:46:16
[INFO] [stderr]    |
[INFO] [stderr] 46 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `workers`
[INFO] [stderr]  --> src/thread_pool/thread_pool.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     workers: Vec<Worker>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/thread_pool/thread_pool.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     id: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `thread`
[INFO] [stderr]   --> src/thread_pool/thread_pool.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `resp` is never read
[INFO] [stderr]   --> src/bin/main.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut resp = "";
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `"docker" "inspect" "502c0033a544a0b9b07049846996700f90709871a912d3bf89375342a23d06c2"`
[INFO] running `"docker" "rm" "-f" "502c0033a544a0b9b07049846996700f90709871a912d3bf89375342a23d06c2"`
[INFO] [stdout] 502c0033a544a0b9b07049846996700f90709871a912d3bf89375342a23d06c2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/fhbzyc/rust_practise:/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] a2916bddca4f5c40e52223b4928cd64ea3cb66c6ae2480b0b00819f7cc3b4d4f
[INFO] running `"docker" "start" "-a" "a2916bddca4f5c40e52223b4928cd64ea3cb66c6ae2480b0b00819f7cc3b4d4f"`
[INFO] [stderr]    Compiling server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `resp` is never read
[INFO] [stderr]   --> src/bin/main.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut resp = "";
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread_pool/thread_pool.rs:46:16
[INFO] [stderr]    |
[INFO] [stderr] 46 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `workers`
[INFO] [stderr]  --> src/thread_pool/thread_pool.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     workers: Vec<Worker>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/thread_pool/thread_pool.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     id: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `thread`
[INFO] [stderr]   --> src/thread_pool/thread_pool.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "a2916bddca4f5c40e52223b4928cd64ea3cb66c6ae2480b0b00819f7cc3b4d4f"`
[INFO] running `"docker" "rm" "-f" "a2916bddca4f5c40e52223b4928cd64ea3cb66c6ae2480b0b00819f7cc3b4d4f"`
[INFO] [stdout] a2916bddca4f5c40e52223b4928cd64ea3cb66c6ae2480b0b00819f7cc3b4d4f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/fhbzyc/rust_practise:/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] 87c06a235dd73d4c3a82392a8dea3cef1fca88450d3e682ff3f7cbd253b9c053
[INFO] running `"docker" "start" "-a" "87c06a235dd73d4c3a82392a8dea3cef1fca88450d3e682ff3f7cbd253b9c053"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/server-6deabf27527e32ae
[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/main-fe7f77ab49838dda
[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/server-ee5ac7d2baa2fa47
[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 server
[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" "87c06a235dd73d4c3a82392a8dea3cef1fca88450d3e682ff3f7cbd253b9c053"`
[INFO] running `"docker" "rm" "-f" "87c06a235dd73d4c3a82392a8dea3cef1fca88450d3e682ff3f7cbd253b9c053"`
[INFO] [stdout] 87c06a235dd73d4c3a82392a8dea3cef1fca88450d3e682ff3f7cbd253b9c053