[INFO] updating cached repository kolgotko/test_jail
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kolgotko/test_jail
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kolgotko/test_jail" "work/ex/beta-1.38-1/sources/1.37.0/gh/kolgotko/test_jail"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kolgotko/test_jail'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kolgotko/test_jail" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kolgotko/test_jail"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kolgotko/test_jail'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e50f02d8782bbc8ad920111405e3f430a070f260
[INFO] sha for GitHub repo kolgotko/test_jail: e50f02d8782bbc8ad920111405e3f430a070f260
[INFO] validating manifest of kolgotko/test_jail 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 kolgotko/test_jail 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 kolgotko/test_jail
[INFO] finished frobbing kolgotko/test_jail
[INFO] frobbed toml for kolgotko/test_jail written to work/ex/beta-1.38-1/sources/1.37.0/gh/kolgotko/test_jail/Cargo.toml
[INFO] started frobbing kolgotko/test_jail
[INFO] finished frobbing kolgotko/test_jail
[INFO] frobbed toml for kolgotko/test_jail written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kolgotko/test_jail/Cargo.toml
[INFO] crate kolgotko/test_jail 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing kolgotko/test_jail 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/kolgotko/test_jail:/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] 5e3e1e6f477f6671faa7613cc7453defdb8204c61c89beb2f9df1b4ba2bc14ff
[INFO] running `"docker" "start" "-a" "5e3e1e6f477f6671faa7613cc7453defdb8204c61c89beb2f9df1b4ba2bc14ff"`
[INFO] [stderr]    Compiling test_socket v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `libc::*`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use libc::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc::iovec`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use libc::iovec;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iovec_key`
[INFO] [stderr]   --> src/main.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |             let iovec_key = libc::iovec {
[INFO] [stderr]    |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_iovec_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iovec`
[INFO] [stderr]   --> src/main.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |                     let iovec = libc::iovec {
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_iovec`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iovec`
[INFO] [stderr]   --> src/main.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 |                     let iovec = libc::iovec {
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_iovec`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "5e3e1e6f477f6671faa7613cc7453defdb8204c61c89beb2f9df1b4ba2bc14ff"`
[INFO] running `"docker" "rm" "-f" "5e3e1e6f477f6671faa7613cc7453defdb8204c61c89beb2f9df1b4ba2bc14ff"`
[INFO] [stdout] 5e3e1e6f477f6671faa7613cc7453defdb8204c61c89beb2f9df1b4ba2bc14ff
[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/kolgotko/test_jail:/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] 59f6f3eb71fea60786f248cde9255a19e19cdd7ba4f78f8042f26062688f0f9e
[INFO] running `"docker" "start" "-a" "59f6f3eb71fea60786f248cde9255a19e19cdd7ba4f78f8042f26062688f0f9e"`
[INFO] [stderr]    Compiling test_socket v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `libc::*`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use libc::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc::iovec`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use libc::iovec;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iovec_key`
[INFO] [stderr]   --> src/main.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |             let iovec_key = libc::iovec {
[INFO] [stderr]    |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_iovec_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iovec`
[INFO] [stderr]   --> src/main.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |                     let iovec = libc::iovec {
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_iovec`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iovec`
[INFO] [stderr]   --> src/main.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 |                     let iovec = libc::iovec {
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_iovec`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "59f6f3eb71fea60786f248cde9255a19e19cdd7ba4f78f8042f26062688f0f9e"`
[INFO] running `"docker" "rm" "-f" "59f6f3eb71fea60786f248cde9255a19e19cdd7ba4f78f8042f26062688f0f9e"`
[INFO] [stdout] 59f6f3eb71fea60786f248cde9255a19e19cdd7ba4f78f8042f26062688f0f9e
[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/kolgotko/test_jail:/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] 29570358270c83e068099339a699b837d0d364f156ecce92b7cfe0ba6b4bc937
[INFO] running `"docker" "start" "-a" "29570358270c83e068099339a699b837d0d364f156ecce92b7cfe0ba6b4bc937"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_socket-06b43eff983fd2bf
[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" "29570358270c83e068099339a699b837d0d364f156ecce92b7cfe0ba6b4bc937"`
[INFO] running `"docker" "rm" "-f" "29570358270c83e068099339a699b837d0d364f156ecce92b7cfe0ba6b4bc937"`
[INFO] [stdout] 29570358270c83e068099339a699b837d0d364f156ecce92b7cfe0ba6b4bc937