[INFO] updating cached repository integritychain/second
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/integritychain/second
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/integritychain/second" "work/ex/beta-1.38-1/sources/1.37.0/gh/integritychain/second"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/integritychain/second'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/integritychain/second" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/integritychain/second"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/integritychain/second'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3bdd587d674294b87664c54f078a05d6dd947f33
[INFO] sha for GitHub repo integritychain/second: 3bdd587d674294b87664c54f078a05d6dd947f33
[INFO] validating manifest of integritychain/second 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 integritychain/second 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 integritychain/second
[INFO] finished frobbing integritychain/second
[INFO] frobbed toml for integritychain/second written to work/ex/beta-1.38-1/sources/1.37.0/gh/integritychain/second/Cargo.toml
[INFO] started frobbing integritychain/second
[INFO] finished frobbing integritychain/second
[INFO] frobbed toml for integritychain/second written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/integritychain/second/Cargo.toml
[INFO] crate integritychain/second 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 integritychain/second 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/integritychain/second:/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] be143a2118a996209108504b0a9597a7f0a3f2512a5e8fe80664fad588f37a36
[INFO] running `"docker" "start" "-a" "be143a2118a996209108504b0a9597a7f0a3f2512a5e8fe80664fad588f37a36"`
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling second v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `reduce`
[INFO] [stderr]    --> src/main.rs:177:1
[INFO] [stderr]     |
[INFO] [stderr] 177 | fn reduce(a: (Fe25519, Fe25519)) -> Fe25519 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.71s
[INFO] running `"docker" "inspect" "be143a2118a996209108504b0a9597a7f0a3f2512a5e8fe80664fad588f37a36"`
[INFO] running `"docker" "rm" "-f" "be143a2118a996209108504b0a9597a7f0a3f2512a5e8fe80664fad588f37a36"`
[INFO] [stdout] be143a2118a996209108504b0a9597a7f0a3f2512a5e8fe80664fad588f37a36
[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/integritychain/second:/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] bb44760e8ae8eadc89ae23276daea3885842dc6740c97cb06395ae5837f6d682
[INFO] running `"docker" "start" "-a" "bb44760e8ae8eadc89ae23276daea3885842dc6740c97cb06395ae5837f6d682"`
[INFO] [stderr]    Compiling second v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/main.rs:208:9
[INFO] [stderr]     |
[INFO] [stderr] 208 |     let m = Fe25519::from_str("0x0004e9a04d1d12b7683bb1f3a245e4ef0a8453ebc428abfce0c2084acebbc82f").unwrap();
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `"docker" "inspect" "bb44760e8ae8eadc89ae23276daea3885842dc6740c97cb06395ae5837f6d682"`
[INFO] running `"docker" "rm" "-f" "bb44760e8ae8eadc89ae23276daea3885842dc6740c97cb06395ae5837f6d682"`
[INFO] [stdout] bb44760e8ae8eadc89ae23276daea3885842dc6740c97cb06395ae5837f6d682
[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/integritychain/second:/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] 735121b04a8219634166f9935d927af9c266e24c9a1ba23a50e206a51325cf70
[INFO] running `"docker" "start" "-a" "735121b04a8219634166f9935d927af9c266e24c9a1ba23a50e206a51325cf70"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/second-ee2af1fcf2edd9e3
[INFO] [stdout] test test_fmt ... ok
[INFO] [stdout] test test_reduce ... ok
[INFO] [stdout] test test_add ... ok
[INFO] [stdout] test test_mult ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "735121b04a8219634166f9935d927af9c266e24c9a1ba23a50e206a51325cf70"`
[INFO] running `"docker" "rm" "-f" "735121b04a8219634166f9935d927af9c266e24c9a1ba23a50e206a51325cf70"`
[INFO] [stdout] 735121b04a8219634166f9935d927af9c266e24c9a1ba23a50e206a51325cf70