[INFO] cloning repository AKholetsky/mvn_clean_install
[INFO] running `"git" "clone" "--bare" "git://github.com/AKholetsky/mvn_clean_install.git" "work/cache/sources/gh/AKholetsky/mvn_clean_install"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/AKholetsky/mvn_clean_install'...
[INFO] running `"git" "clone" "work/cache/sources/gh/AKholetsky/mvn_clean_install" "work/ex/beta-1.37-6/sources/1.36.0/gh/AKholetsky/mvn_clean_install"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/AKholetsky/mvn_clean_install'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AKholetsky/mvn_clean_install" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AKholetsky/mvn_clean_install"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AKholetsky/mvn_clean_install'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 62e334b382c8c79a6ee1ccc66077490d25a55d5b
[INFO] sha for GitHub repo AKholetsky/mvn_clean_install: 62e334b382c8c79a6ee1ccc66077490d25a55d5b
[INFO] validating manifest of AKholetsky/mvn_clean_install on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AKholetsky/mvn_clean_install on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing AKholetsky/mvn_clean_install
[INFO] finished frobbing AKholetsky/mvn_clean_install
[INFO] frobbed toml for AKholetsky/mvn_clean_install written to work/ex/beta-1.37-6/sources/1.36.0/gh/AKholetsky/mvn_clean_install/Cargo.toml
[INFO] started frobbing AKholetsky/mvn_clean_install
[INFO] finished frobbing AKholetsky/mvn_clean_install
[INFO] frobbed toml for AKholetsky/mvn_clean_install written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AKholetsky/mvn_clean_install/Cargo.toml
[INFO] crate AKholetsky/mvn_clean_install already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing AKholetsky/mvn_clean_install against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AKholetsky/mvn_clean_install:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] fa34077125e349ceb9829e5eefb7da5001a1211928faa799da590f331beb870c
[INFO] running `"docker" "start" "-a" "fa34077125e349ceb9829e5eefb7da5001a1211928faa799da590f331beb870c"`
[INFO] [stderr]    Compiling mvn_clean_install v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Output`
[INFO] [stderr]  --> src/main.rs:1:44
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::process::{ Command, Child, Stdio, Output };
[INFO] [stderr]   |                                            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |             Err(e) => Err("can't remove"),
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 | /         match fs::remove_dir_all(dir) {
[INFO] [stderr] 35 | |             Ok(_) => Ok("Conservis removed"),
[INFO] [stderr] 36 | |             Err(e) => Err("can't remove"),
[INFO] [stderr] 37 | |         };
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "fa34077125e349ceb9829e5eefb7da5001a1211928faa799da590f331beb870c"`
[INFO] running `"docker" "rm" "-f" "fa34077125e349ceb9829e5eefb7da5001a1211928faa799da590f331beb870c"`
[INFO] [stdout] fa34077125e349ceb9829e5eefb7da5001a1211928faa799da590f331beb870c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AKholetsky/mvn_clean_install:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 120552946e285aa8266b0784bece7e60c771c1a47502dc07e1eb96c3dce428ac
[INFO] running `"docker" "start" "-a" "120552946e285aa8266b0784bece7e60c771c1a47502dc07e1eb96c3dce428ac"`
[INFO] [stderr]    Compiling mvn_clean_install v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Output`
[INFO] [stderr]  --> src/main.rs:1:44
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::process::{ Command, Child, Stdio, Output };
[INFO] [stderr]   |                                            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |             Err(e) => Err("can't remove"),
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 | /         match fs::remove_dir_all(dir) {
[INFO] [stderr] 35 | |             Ok(_) => Ok("Conservis removed"),
[INFO] [stderr] 36 | |             Err(e) => Err("can't remove"),
[INFO] [stderr] 37 | |         };
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "120552946e285aa8266b0784bece7e60c771c1a47502dc07e1eb96c3dce428ac"`
[INFO] running `"docker" "rm" "-f" "120552946e285aa8266b0784bece7e60c771c1a47502dc07e1eb96c3dce428ac"`
[INFO] [stdout] 120552946e285aa8266b0784bece7e60c771c1a47502dc07e1eb96c3dce428ac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AKholetsky/mvn_clean_install:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] e074c33d960a84a20095b9e00c06f4b90cac94e251d50ecae152e02cd4a7ae4a
[INFO] running `"docker" "start" "-a" "e074c33d960a84a20095b9e00c06f4b90cac94e251d50ecae152e02cd4a7ae4a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mvn_clean_install-0fbb1e3d391b794b
[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" "e074c33d960a84a20095b9e00c06f4b90cac94e251d50ecae152e02cd4a7ae4a"`
[INFO] running `"docker" "rm" "-f" "e074c33d960a84a20095b9e00c06f4b90cac94e251d50ecae152e02cd4a7ae4a"`
[INFO] [stdout] e074c33d960a84a20095b9e00c06f4b90cac94e251d50ecae152e02cd4a7ae4a