[INFO] updating cached repository KJ4TIP/rust-hello
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/KJ4TIP/rust-hello
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/KJ4TIP/rust-hello" "work/ex/beta-1.38-1/sources/1.37.0/gh/KJ4TIP/rust-hello"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/KJ4TIP/rust-hello'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KJ4TIP/rust-hello" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KJ4TIP/rust-hello"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KJ4TIP/rust-hello'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ad31b4daef58cb8b7bc46ef9cfcfdbb65ead3935
[INFO] sha for GitHub repo KJ4TIP/rust-hello: ad31b4daef58cb8b7bc46ef9cfcfdbb65ead3935
[INFO] validating manifest of KJ4TIP/rust-hello 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 KJ4TIP/rust-hello 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 KJ4TIP/rust-hello
[INFO] finished frobbing KJ4TIP/rust-hello
[INFO] frobbed toml for KJ4TIP/rust-hello written to work/ex/beta-1.38-1/sources/1.37.0/gh/KJ4TIP/rust-hello/Cargo.toml
[INFO] started frobbing KJ4TIP/rust-hello
[INFO] finished frobbing KJ4TIP/rust-hello
[INFO] frobbed toml for KJ4TIP/rust-hello written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KJ4TIP/rust-hello/Cargo.toml
[INFO] crate KJ4TIP/rust-hello 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 KJ4TIP/rust-hello against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KJ4TIP/rust-hello:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f0ef819c12048efa1643fcf40a081b719b163b7a4d198702d96782e881cfabf5
[INFO] running `"docker" "start" "-a" "f0ef819c12048efa1643fcf40a081b719b163b7a4d198702d96782e881cfabf5"`
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "f0ef819c12048efa1643fcf40a081b719b163b7a4d198702d96782e881cfabf5"`
[INFO] running `"docker" "rm" "-f" "f0ef819c12048efa1643fcf40a081b719b163b7a4d198702d96782e881cfabf5"`
[INFO] [stdout] f0ef819c12048efa1643fcf40a081b719b163b7a4d198702d96782e881cfabf5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KJ4TIP/rust-hello:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 38f449465852a3b17a2be842dc243422b926e6df518465f531385bb9c2593b25
[INFO] running `"docker" "start" "-a" "38f449465852a3b17a2be842dc243422b926e6df518465f531385bb9c2593b25"`
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "38f449465852a3b17a2be842dc243422b926e6df518465f531385bb9c2593b25"`
[INFO] running `"docker" "rm" "-f" "38f449465852a3b17a2be842dc243422b926e6df518465f531385bb9c2593b25"`
[INFO] [stdout] 38f449465852a3b17a2be842dc243422b926e6df518465f531385bb9c2593b25
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KJ4TIP/rust-hello:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 574c1f01ca13b26e93fda85be052b4fbf45e81622a0a0cfb88c9e236d27a3378
[INFO] running `"docker" "start" "-a" "574c1f01ca13b26e93fda85be052b4fbf45e81622a0a0cfb88c9e236d27a3378"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello-e416ede7c6fa78fa
[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" "574c1f01ca13b26e93fda85be052b4fbf45e81622a0a0cfb88c9e236d27a3378"`
[INFO] running `"docker" "rm" "-f" "574c1f01ca13b26e93fda85be052b4fbf45e81622a0a0cfb88c9e236d27a3378"`
[INFO] [stdout] 574c1f01ca13b26e93fda85be052b4fbf45e81622a0a0cfb88c9e236d27a3378