[INFO] updating cached repository maciejhirsz/lhc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/maciejhirsz/lhc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/maciejhirsz/lhc" "work/ex/beta-1.38-1/sources/1.37.0/gh/maciejhirsz/lhc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/maciejhirsz/lhc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/maciejhirsz/lhc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/maciejhirsz/lhc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/maciejhirsz/lhc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a439bde37d5f96505629d84c783a8d5deb724f9b
[INFO] sha for GitHub repo maciejhirsz/lhc: a439bde37d5f96505629d84c783a8d5deb724f9b
[INFO] validating manifest of maciejhirsz/lhc 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 maciejhirsz/lhc 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 maciejhirsz/lhc
[INFO] finished frobbing maciejhirsz/lhc
[INFO] frobbed toml for maciejhirsz/lhc written to work/ex/beta-1.38-1/sources/1.37.0/gh/maciejhirsz/lhc/Cargo.toml
[INFO] started frobbing maciejhirsz/lhc
[INFO] finished frobbing maciejhirsz/lhc
[INFO] frobbed toml for maciejhirsz/lhc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/maciejhirsz/lhc/Cargo.toml
[INFO] crate maciejhirsz/lhc 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing maciejhirsz/lhc 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/maciejhirsz/lhc:/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] c0a45542fb9af8885e860855429dd1b2ad47958e28985b7bc07c1bb46954c153
[INFO] running `"docker" "start" "-a" "c0a45542fb9af8885e860855429dd1b2ad47958e28985b7bc07c1bb46954c153"`
[INFO] [stderr]    Compiling lhc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Hash`
[INFO] [stderr]  --> src/main.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "c0a45542fb9af8885e860855429dd1b2ad47958e28985b7bc07c1bb46954c153"`
[INFO] running `"docker" "rm" "-f" "c0a45542fb9af8885e860855429dd1b2ad47958e28985b7bc07c1bb46954c153"`
[INFO] [stdout] c0a45542fb9af8885e860855429dd1b2ad47958e28985b7bc07c1bb46954c153
[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/maciejhirsz/lhc:/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] d4a51d3226a15e69e899a90ae74ec8a3c72c4d2d7ff00ad31a29fcd5fe336524
[INFO] running `"docker" "start" "-a" "d4a51d3226a15e69e899a90ae74ec8a3c72c4d2d7ff00ad31a29fcd5fe336524"`
[INFO] [stderr]    Compiling lhc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Hash`
[INFO] [stderr]  --> src/main.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "d4a51d3226a15e69e899a90ae74ec8a3c72c4d2d7ff00ad31a29fcd5fe336524"`
[INFO] running `"docker" "rm" "-f" "d4a51d3226a15e69e899a90ae74ec8a3c72c4d2d7ff00ad31a29fcd5fe336524"`
[INFO] [stdout] d4a51d3226a15e69e899a90ae74ec8a3c72c4d2d7ff00ad31a29fcd5fe336524
[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/maciejhirsz/lhc:/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] 2b28671661d7679193550b361f159203e24a6f5aeea6b97b5433dfa3bf0d45fb
[INFO] running `"docker" "start" "-a" "2b28671661d7679193550b361f159203e24a6f5aeea6b97b5433dfa3bf0d45fb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lhc-9ea90ddd06494422
[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" "2b28671661d7679193550b361f159203e24a6f5aeea6b97b5433dfa3bf0d45fb"`
[INFO] running `"docker" "rm" "-f" "2b28671661d7679193550b361f159203e24a6f5aeea6b97b5433dfa3bf0d45fb"`
[INFO] [stdout] 2b28671661d7679193550b361f159203e24a6f5aeea6b97b5433dfa3bf0d45fb