[INFO] updating cached repository https://github.com/ivgur/ipv6_sort
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d5f36c84e460c0f8dafa7ab62aa0f671a5c08e9
[INFO] testing ivgur/ipv6_sort against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivgur%2Fipv6_sort" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ivgur/ipv6_sort on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ivgur/ipv6_sort
[INFO] finished tweaking git repo https://github.com/ivgur/ipv6_sort
[INFO] tweaked toml for git repo https://github.com/ivgur/ipv6_sort written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ivgur/ipv6_sort already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 958d0bc62481a3c651e11fde6cd0ededf95d8f3864ac26157dbd06bd2bf84ae1
[INFO] running `"docker" "start" "-a" "958d0bc62481a3c651e11fde6cd0ededf95d8f3864ac26157dbd06bd2bf84ae1"`
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling ipv6_sort v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::fs::OpenOptions`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs::OpenOptions;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.78s
[INFO] running `"docker" "inspect" "958d0bc62481a3c651e11fde6cd0ededf95d8f3864ac26157dbd06bd2bf84ae1"`
[INFO] running `"docker" "rm" "-f" "958d0bc62481a3c651e11fde6cd0ededf95d8f3864ac26157dbd06bd2bf84ae1"`
[INFO] [stdout] 958d0bc62481a3c651e11fde6cd0ededf95d8f3864ac26157dbd06bd2bf84ae1
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0d3c2f444ac9e1dcde885f47100413605b11c0b40935ff6501b6cf3eb9d8cf20
[INFO] running `"docker" "start" "-a" "0d3c2f444ac9e1dcde885f47100413605b11c0b40935ff6501b6cf3eb9d8cf20"`
[INFO] [stderr]    Compiling ipv6_sort v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::fs::OpenOptions`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs::OpenOptions;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `"docker" "inspect" "0d3c2f444ac9e1dcde885f47100413605b11c0b40935ff6501b6cf3eb9d8cf20"`
[INFO] running `"docker" "rm" "-f" "0d3c2f444ac9e1dcde885f47100413605b11c0b40935ff6501b6cf3eb9d8cf20"`
[INFO] [stdout] 0d3c2f444ac9e1dcde885f47100413605b11c0b40935ff6501b6cf3eb9d8cf20
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 70a8b43611be078d19de7834e615f9083673b516f3b319211db1b66eb75911d8
[INFO] running `"docker" "start" "-a" "70a8b43611be078d19de7834e615f9083673b516f3b319211db1b66eb75911d8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ipv6_sort-224f6322bac2cac2
[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" "70a8b43611be078d19de7834e615f9083673b516f3b319211db1b66eb75911d8"`
[INFO] running `"docker" "rm" "-f" "70a8b43611be078d19de7834e615f9083673b516f3b319211db1b66eb75911d8"`
[INFO] [stdout] 70a8b43611be078d19de7834e615f9083673b516f3b319211db1b66eb75911d8