[INFO] updating cached repository mraof/tcpgen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mraof/tcpgen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mraof/tcpgen" "work/ex/beta-1.37-6/sources/1.36.0/gh/mraof/tcpgen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mraof/tcpgen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mraof/tcpgen" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mraof/tcpgen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mraof/tcpgen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eb7a64009cadc0025b089f3eff71fba3b037836b
[INFO] sha for GitHub repo mraof/tcpgen: eb7a64009cadc0025b089f3eff71fba3b037836b
[INFO] validating manifest of mraof/tcpgen on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mraof/tcpgen on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mraof/tcpgen
[INFO] finished frobbing mraof/tcpgen
[INFO] frobbed toml for mraof/tcpgen written to work/ex/beta-1.37-6/sources/1.36.0/gh/mraof/tcpgen/Cargo.toml
[INFO] started frobbing mraof/tcpgen
[INFO] finished frobbing mraof/tcpgen
[INFO] frobbed toml for mraof/tcpgen written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mraof/tcpgen/Cargo.toml
[INFO] crate mraof/tcpgen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mraof/tcpgen against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mraof/tcpgen:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] b501c3c367349e75f3dca22437f73d63c42601cf903bf4d2daee4829bd1c4c6b
[INFO] running `"docker" "start" "-a" "b501c3c367349e75f3dca22437f73d63c42601cf903bf4d2daee4829bd1c4c6b"`
[INFO] [stderr]    Compiling tcpgen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `write`
[INFO] [stderr]  --> src/lib.rs:9:21
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::fs::{File, 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 3.36s
[INFO] running `"docker" "inspect" "b501c3c367349e75f3dca22437f73d63c42601cf903bf4d2daee4829bd1c4c6b"`
[INFO] running `"docker" "rm" "-f" "b501c3c367349e75f3dca22437f73d63c42601cf903bf4d2daee4829bd1c4c6b"`
[INFO] [stdout] b501c3c367349e75f3dca22437f73d63c42601cf903bf4d2daee4829bd1c4c6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mraof/tcpgen:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 457de1aad371495300a333ecef7a81c0c315e210d6e467b9c15411b1763f63fb
[INFO] running `"docker" "start" "-a" "457de1aad371495300a333ecef7a81c0c315e210d6e467b9c15411b1763f63fb"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tcpgen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `write`
[INFO] [stderr]  --> src/lib.rs:9:21
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::fs::{File, 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 1.34s
[INFO] running `"docker" "inspect" "457de1aad371495300a333ecef7a81c0c315e210d6e467b9c15411b1763f63fb"`
[INFO] running `"docker" "rm" "-f" "457de1aad371495300a333ecef7a81c0c315e210d6e467b9c15411b1763f63fb"`
[INFO] [stdout] 457de1aad371495300a333ecef7a81c0c315e210d6e467b9c15411b1763f63fb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mraof/tcpgen:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 887b001870a43154b4129bb8555f8fe4cc70113ed79244c79548413e1b43130d
[INFO] running `"docker" "start" "-a" "887b001870a43154b4129bb8555f8fe4cc70113ed79244c79548413e1b43130d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tcpgen-ec36ff5c856375b1
[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/tcpgen-630323288a799847
[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 tcpgen
[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" "887b001870a43154b4129bb8555f8fe4cc70113ed79244c79548413e1b43130d"`
[INFO] running `"docker" "rm" "-f" "887b001870a43154b4129bb8555f8fe4cc70113ed79244c79548413e1b43130d"`
[INFO] [stdout] 887b001870a43154b4129bb8555f8fe4cc70113ed79244c79548413e1b43130d