[INFO] updating cached repository hejile/tcpspeedtest
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hejile/tcpspeedtest
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hejile/tcpspeedtest" "work/ex/beta-1.38-1/sources/1.37.0/gh/hejile/tcpspeedtest"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hejile/tcpspeedtest'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hejile/tcpspeedtest" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hejile/tcpspeedtest"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hejile/tcpspeedtest'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a84fa28592a6f45a842e296e4c1a64fad0af01d6
[INFO] sha for GitHub repo hejile/tcpspeedtest: a84fa28592a6f45a842e296e4c1a64fad0af01d6
[INFO] validating manifest of hejile/tcpspeedtest 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 hejile/tcpspeedtest 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 hejile/tcpspeedtest
[INFO] finished frobbing hejile/tcpspeedtest
[INFO] frobbed toml for hejile/tcpspeedtest written to work/ex/beta-1.38-1/sources/1.37.0/gh/hejile/tcpspeedtest/Cargo.toml
[INFO] started frobbing hejile/tcpspeedtest
[INFO] finished frobbing hejile/tcpspeedtest
[INFO] frobbed toml for hejile/tcpspeedtest written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hejile/tcpspeedtest/Cargo.toml
[INFO] crate hejile/tcpspeedtest 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] testing hejile/tcpspeedtest 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-5/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/hejile/tcpspeedtest:/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] a5ba5696dfff1ae4d5986e2dc6d19e64d547fb24b682ed752809b6bf809ef4e7
[INFO] running `"docker" "start" "-a" "a5ba5696dfff1ae4d5986e2dc6d19e64d547fb24b682ed752809b6bf809ef4e7"`
[INFO] [stderr]    Compiling tcpspeedtest v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `total_bytes` is never read
[INFO] [stderr]   --> src/main.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut total_bytes = 0;
[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: value assigned to `upload_dur` is never read
[INFO] [stderr]   --> src/main.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut upload_dur = 0usize;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "a5ba5696dfff1ae4d5986e2dc6d19e64d547fb24b682ed752809b6bf809ef4e7"`
[INFO] running `"docker" "rm" "-f" "a5ba5696dfff1ae4d5986e2dc6d19e64d547fb24b682ed752809b6bf809ef4e7"`
[INFO] [stdout] a5ba5696dfff1ae4d5986e2dc6d19e64d547fb24b682ed752809b6bf809ef4e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/hejile/tcpspeedtest:/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] 350180ce44467ef49a931fc6bfa25a9b3e4e5f72bed8ad8dfa6eff0c579e2da3
[INFO] running `"docker" "start" "-a" "350180ce44467ef49a931fc6bfa25a9b3e4e5f72bed8ad8dfa6eff0c579e2da3"`
[INFO] [stderr]    Compiling tcpspeedtest v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `total_bytes` is never read
[INFO] [stderr]   --> src/main.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut total_bytes = 0;
[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: value assigned to `upload_dur` is never read
[INFO] [stderr]   --> src/main.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut upload_dur = 0usize;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "350180ce44467ef49a931fc6bfa25a9b3e4e5f72bed8ad8dfa6eff0c579e2da3"`
[INFO] running `"docker" "rm" "-f" "350180ce44467ef49a931fc6bfa25a9b3e4e5f72bed8ad8dfa6eff0c579e2da3"`
[INFO] [stdout] 350180ce44467ef49a931fc6bfa25a9b3e4e5f72bed8ad8dfa6eff0c579e2da3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/hejile/tcpspeedtest:/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] 54255259f67ac172e2601fc9d887450b2dc2dcee3d3ea22adbc1041253a4c1b4
[INFO] running `"docker" "start" "-a" "54255259f67ac172e2601fc9d887450b2dc2dcee3d3ea22adbc1041253a4c1b4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tcpspeedtest-95bbe13adb7e884a
[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" "54255259f67ac172e2601fc9d887450b2dc2dcee3d3ea22adbc1041253a4c1b4"`
[INFO] running `"docker" "rm" "-f" "54255259f67ac172e2601fc9d887450b2dc2dcee3d3ea22adbc1041253a4c1b4"`
[INFO] [stdout] 54255259f67ac172e2601fc9d887450b2dc2dcee3d3ea22adbc1041253a4c1b4