[INFO] updating cached repository privatemani/basic_server_client
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/privatemani/basic_server_client
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/privatemani/basic_server_client" "work/ex/beta-1.38-1/sources/1.37.0/gh/privatemani/basic_server_client"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/privatemani/basic_server_client'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/privatemani/basic_server_client" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/privatemani/basic_server_client"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/privatemani/basic_server_client'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f5aa134eb59841a1d1c1ad1ec57b40423605e007
[INFO] sha for GitHub repo privatemani/basic_server_client: f5aa134eb59841a1d1c1ad1ec57b40423605e007
[INFO] validating manifest of privatemani/basic_server_client 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 privatemani/basic_server_client 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 privatemani/basic_server_client
[INFO] finished frobbing privatemani/basic_server_client
[INFO] frobbed toml for privatemani/basic_server_client written to work/ex/beta-1.38-1/sources/1.37.0/gh/privatemani/basic_server_client/Cargo.toml
[INFO] started frobbing privatemani/basic_server_client
[INFO] finished frobbing privatemani/basic_server_client
[INFO] frobbed toml for privatemani/basic_server_client written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/privatemani/basic_server_client/Cargo.toml
[INFO] crate privatemani/basic_server_client 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 privatemani/basic_server_client 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/privatemani/basic_server_client:/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] 46ecf6d3c02809b0fe3a747824a8708f6ee72b2d55fbf66a29860e5855d4da69
[INFO] running `"docker" "start" "-a" "46ecf6d3c02809b0fe3a747824a8708f6ee72b2d55fbf66a29860e5855d4da69"`
[INFO] [stderr]    Compiling network_client v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/main.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Read, Write};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "46ecf6d3c02809b0fe3a747824a8708f6ee72b2d55fbf66a29860e5855d4da69"`
[INFO] running `"docker" "rm" "-f" "46ecf6d3c02809b0fe3a747824a8708f6ee72b2d55fbf66a29860e5855d4da69"`
[INFO] [stdout] 46ecf6d3c02809b0fe3a747824a8708f6ee72b2d55fbf66a29860e5855d4da69
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/privatemani/basic_server_client:/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] 1acf6c76da7e6cc1755bca7d08ef228bfe3e7ac3bd80c22b27b7862b50ab4b14
[INFO] running `"docker" "start" "-a" "1acf6c76da7e6cc1755bca7d08ef228bfe3e7ac3bd80c22b27b7862b50ab4b14"`
[INFO] [stderr]    Compiling network_client v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/main.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Read, Write};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "1acf6c76da7e6cc1755bca7d08ef228bfe3e7ac3bd80c22b27b7862b50ab4b14"`
[INFO] running `"docker" "rm" "-f" "1acf6c76da7e6cc1755bca7d08ef228bfe3e7ac3bd80c22b27b7862b50ab4b14"`
[INFO] [stdout] 1acf6c76da7e6cc1755bca7d08ef228bfe3e7ac3bd80c22b27b7862b50ab4b14
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/privatemani/basic_server_client:/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] e60422a4ad33e98823d418c015b7125f58269089ad76870dd5b30ce3e9bc34a5
[INFO] running `"docker" "start" "-a" "e60422a4ad33e98823d418c015b7125f58269089ad76870dd5b30ce3e9bc34a5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/network_client-c9d663cb6f0dc82c
[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" "e60422a4ad33e98823d418c015b7125f58269089ad76870dd5b30ce3e9bc34a5"`
[INFO] running `"docker" "rm" "-f" "e60422a4ad33e98823d418c015b7125f58269089ad76870dd5b30ce3e9bc34a5"`
[INFO] [stdout] e60422a4ad33e98823d418c015b7125f58269089ad76870dd5b30ce3e9bc34a5