[INFO] updating cached repository sbeckeriv/temp-dir
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sbeckeriv/temp-dir
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sbeckeriv/temp-dir" "work/ex/beta-1.38-1/sources/1.37.0/gh/sbeckeriv/temp-dir"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sbeckeriv/temp-dir'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sbeckeriv/temp-dir" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sbeckeriv/temp-dir"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sbeckeriv/temp-dir'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c8c1da86847c7aacb5fdf8551bbd81bbdf5873c
[INFO] sha for GitHub repo sbeckeriv/temp-dir: 7c8c1da86847c7aacb5fdf8551bbd81bbdf5873c
[INFO] validating manifest of sbeckeriv/temp-dir 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 sbeckeriv/temp-dir 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 sbeckeriv/temp-dir
[INFO] finished frobbing sbeckeriv/temp-dir
[INFO] frobbed toml for sbeckeriv/temp-dir written to work/ex/beta-1.38-1/sources/1.37.0/gh/sbeckeriv/temp-dir/Cargo.toml
[INFO] started frobbing sbeckeriv/temp-dir
[INFO] finished frobbing sbeckeriv/temp-dir
[INFO] frobbed toml for sbeckeriv/temp-dir written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sbeckeriv/temp-dir/Cargo.toml
[INFO] crate sbeckeriv/temp-dir 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 sbeckeriv/temp-dir 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/sbeckeriv/temp-dir:/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] 385454212f19e77dc1131a611507c781f4ce85348b2bf27c0eb3b7f40805f0c7
[INFO] running `"docker" "start" "-a" "385454212f19e77dc1131a611507c781f4ce85348b2bf27c0eb3b7f40805f0c7"`
[INFO] [stderr]    Compiling temp-dir v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rank::Test`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rank::Test;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Test`
[INFO] [stderr]  --> src/rank.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Test{
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "385454212f19e77dc1131a611507c781f4ce85348b2bf27c0eb3b7f40805f0c7"`
[INFO] running `"docker" "rm" "-f" "385454212f19e77dc1131a611507c781f4ce85348b2bf27c0eb3b7f40805f0c7"`
[INFO] [stdout] 385454212f19e77dc1131a611507c781f4ce85348b2bf27c0eb3b7f40805f0c7
[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/sbeckeriv/temp-dir:/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] b2cdef006b2acd7b7c3b16741d04cae83c3b92704ef0d13b7013151b7cc517dc
[INFO] running `"docker" "start" "-a" "b2cdef006b2acd7b7c3b16741d04cae83c3b92704ef0d13b7013151b7cc517dc"`
[INFO] [stderr]    Compiling temp-dir v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rank::Test`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rank::Test;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Test`
[INFO] [stderr]  --> src/rank.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Test{
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "b2cdef006b2acd7b7c3b16741d04cae83c3b92704ef0d13b7013151b7cc517dc"`
[INFO] running `"docker" "rm" "-f" "b2cdef006b2acd7b7c3b16741d04cae83c3b92704ef0d13b7013151b7cc517dc"`
[INFO] [stdout] b2cdef006b2acd7b7c3b16741d04cae83c3b92704ef0d13b7013151b7cc517dc
[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/sbeckeriv/temp-dir:/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] 42c56129eda7b8da753275ba0065013a74ff818836c6439851c3a8d48436866c
[INFO] running `"docker" "start" "-a" "42c56129eda7b8da753275ba0065013a74ff818836c6439851c3a8d48436866c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/temp_dir-3984e2260c6ba95a
[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" "42c56129eda7b8da753275ba0065013a74ff818836c6439851c3a8d48436866c"`
[INFO] running `"docker" "rm" "-f" "42c56129eda7b8da753275ba0065013a74ff818836c6439851c3a8d48436866c"`
[INFO] [stdout] 42c56129eda7b8da753275ba0065013a74ff818836c6439851c3a8d48436866c