[INFO] updating cached repository at1as/the_nuclear_option
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/at1as/the_nuclear_option
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/at1as/the_nuclear_option" "work/ex/beta-1.38-1/sources/1.37.0/gh/at1as/the_nuclear_option"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/at1as/the_nuclear_option'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/at1as/the_nuclear_option" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/at1as/the_nuclear_option"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/at1as/the_nuclear_option'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 58e4328a8951fbd570c8c9bc0ec499daaf0dc816
[INFO] sha for GitHub repo at1as/the_nuclear_option: 58e4328a8951fbd570c8c9bc0ec499daaf0dc816
[INFO] validating manifest of at1as/the_nuclear_option 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 at1as/the_nuclear_option 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 at1as/the_nuclear_option
[INFO] finished frobbing at1as/the_nuclear_option
[INFO] frobbed toml for at1as/the_nuclear_option written to work/ex/beta-1.38-1/sources/1.37.0/gh/at1as/the_nuclear_option/Cargo.toml
[INFO] started frobbing at1as/the_nuclear_option
[INFO] finished frobbing at1as/the_nuclear_option
[INFO] frobbed toml for at1as/the_nuclear_option written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/at1as/the_nuclear_option/Cargo.toml
[INFO] crate at1as/the_nuclear_option 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 at1as/the_nuclear_option 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-6/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/at1as/the_nuclear_option:/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] 689831dc1888a9bf990174c55ec253af1fc788b5c3ed750f3b9f5e00963469be
[INFO] running `"docker" "start" "-a" "689831dc1888a9bf990174c55ec253af1fc788b5c3ed750f3b9f5e00963469be"`
[INFO] [stderr]    Compiling hyper v0.10.9
[INFO] [stderr]    Compiling nuclear_option v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Mime`, `SubLevel`, `TopLevel`
[INFO] [stderr]  --> src/main.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 | use hyper::mime::{Mime, TopLevel, SubLevel};
[INFO] [stderr]   |                   ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hyper::Ok`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use hyper::Ok;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.07s
[INFO] running `"docker" "inspect" "689831dc1888a9bf990174c55ec253af1fc788b5c3ed750f3b9f5e00963469be"`
[INFO] running `"docker" "rm" "-f" "689831dc1888a9bf990174c55ec253af1fc788b5c3ed750f3b9f5e00963469be"`
[INFO] [stdout] 689831dc1888a9bf990174c55ec253af1fc788b5c3ed750f3b9f5e00963469be
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/at1as/the_nuclear_option:/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] 4cde6788e11a383dc0e1f270910d983a9104a75c76b89e03d8860df608eb75ec
[INFO] running `"docker" "start" "-a" "4cde6788e11a383dc0e1f270910d983a9104a75c76b89e03d8860df608eb75ec"`
[INFO] [stderr]    Compiling nuclear_option v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Mime`, `SubLevel`, `TopLevel`
[INFO] [stderr]  --> src/main.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 | use hyper::mime::{Mime, TopLevel, SubLevel};
[INFO] [stderr]   |                   ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hyper::Ok`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use hyper::Ok;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "4cde6788e11a383dc0e1f270910d983a9104a75c76b89e03d8860df608eb75ec"`
[INFO] running `"docker" "rm" "-f" "4cde6788e11a383dc0e1f270910d983a9104a75c76b89e03d8860df608eb75ec"`
[INFO] [stdout] 4cde6788e11a383dc0e1f270910d983a9104a75c76b89e03d8860df608eb75ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/at1as/the_nuclear_option:/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] dfa23c14b27db4aca225ffbb5d02c0ff14b7bd67a27d088a85d46fef348ceb13
[INFO] running `"docker" "start" "-a" "dfa23c14b27db4aca225ffbb5d02c0ff14b7bd67a27d088a85d46fef348ceb13"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nuclear_option-dfe2d024b03600c3
[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" "dfa23c14b27db4aca225ffbb5d02c0ff14b7bd67a27d088a85d46fef348ceb13"`
[INFO] running `"docker" "rm" "-f" "dfa23c14b27db4aca225ffbb5d02c0ff14b7bd67a27d088a85d46fef348ceb13"`
[INFO] [stdout] dfa23c14b27db4aca225ffbb5d02c0ff14b7bd67a27d088a85d46fef348ceb13