[INFO] updating cached repository felipesere/dotter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/felipesere/dotter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/felipesere/dotter" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/felipesere/dotter"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/felipesere/dotter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/felipesere/dotter" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/felipesere/dotter"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/felipesere/dotter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 123bf7f90bbc280d4cd9513fd328b199fe32cd22
[INFO] sha for GitHub repo felipesere/dotter: 123bf7f90bbc280d4cd9513fd328b199fe32cd22
[INFO] validating manifest of felipesere/dotter on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of felipesere/dotter on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing felipesere/dotter
[INFO] finished frobbing felipesere/dotter
[INFO] frobbed toml for felipesere/dotter written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/felipesere/dotter/Cargo.toml
[INFO] started frobbing felipesere/dotter
[INFO] finished frobbing felipesere/dotter
[INFO] frobbed toml for felipesere/dotter written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/felipesere/dotter/Cargo.toml
[INFO] crate felipesere/dotter has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing felipesere/dotter against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/felipesere/dotter:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 6f4807d648ef36156f590f4139d1bab87054b4e7a2bb55d470c907bea08b81b9
[INFO] running `"docker" "start" "-a" "6f4807d648ef36156f590f4139d1bab87054b4e7a2bb55d470c907bea08b81b9"`
[INFO] [stderr]    Compiling git-version v0.2.1
[INFO] [stderr]    Compiling symlink v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.27
[INFO] [stderr]    Compiling h2 v0.1.12
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling serde_urlencoded v0.5.3
[INFO] [stderr]    Compiling tokio-reactor v0.1.5
[INFO] [stderr]    Compiling dotter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.1
[INFO] [stderr]    Compiling tokio-tcp v0.1.1
[INFO] [stderr]    Compiling tokio v0.1.8
[INFO] [stderr]    Compiling hyper v0.12.10
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling hyper-tls v0.3.0
[INFO] [stderr]    Compiling failure v0.1.2
[INFO] [stderr]    Compiling reqwest v0.9.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.08s
[INFO] running `"docker" "inspect" "6f4807d648ef36156f590f4139d1bab87054b4e7a2bb55d470c907bea08b81b9"`
[INFO] running `"docker" "rm" "-f" "6f4807d648ef36156f590f4139d1bab87054b4e7a2bb55d470c907bea08b81b9"`
[INFO] [stdout] 6f4807d648ef36156f590f4139d1bab87054b4e7a2bb55d470c907bea08b81b9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/felipesere/dotter:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] e96dc26d679c796de4473f993f7d195443ff98e8b5c1c3750269b5cc07f2b557
[INFO] running `"docker" "start" "-a" "e96dc26d679c796de4473f993f7d195443ff98e8b5c1c3750269b5cc07f2b557"`
[INFO] [stderr]    Compiling dotter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         brew.execute(&context);
[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] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:182:9
[INFO] [stderr]     |
[INFO] [stderr] 182 |         brew.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         brew_cask.execute(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         brew_cask.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         brew_cask.execute(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         brew_cask.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/shell.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         echo_command.execute(&context);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/symlinks.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         linker.execute(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/symlinks.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         linker.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/symlinks.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 |         linker.execute(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/symlinks.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         linker.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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 7.12s
[INFO] running `"docker" "inspect" "e96dc26d679c796de4473f993f7d195443ff98e8b5c1c3750269b5cc07f2b557"`
[INFO] running `"docker" "rm" "-f" "e96dc26d679c796de4473f993f7d195443ff98e8b5c1c3750269b5cc07f2b557"`
[INFO] [stdout] e96dc26d679c796de4473f993f7d195443ff98e8b5c1c3750269b5cc07f2b557
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/felipesere/dotter:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 8a53d9aee5c8f82d126ed2926d5df9e20a850515379f7a1b2c3dd49f38bc54ba
[INFO] running `"docker" "start" "-a" "8a53d9aee5c8f82d126ed2926d5df9e20a850515379f7a1b2c3dd49f38bc54ba"`
[INFO] [stderr]    Compiling dotter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         brew.execute(&context);
[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] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:182:9
[INFO] [stderr]     |
[INFO] [stderr] 182 |         brew.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         brew_cask.execute(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         brew_cask.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         brew_cask.execute(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/homebrew.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         brew_cask.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/shell.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         echo_command.execute(&context);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/symlinks.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         linker.execute(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/symlinks.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         linker.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/symlinks.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 |         linker.execute(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/symlinks.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         linker.rollback(&context);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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 6.84s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dotter-2e32e96c2f873c8e
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test homebrew::tests::it_will_install_things_from_homebrew ... ignored
[INFO] [stdout] test homebrew::tests::works_for_brew_casks ... ignored
[INFO] [stdout] test homebrew::tests::works_for_brew_tap ... ignored
[INFO] [stdout] test homebrew::tests::explaining_homebrew_commands_shows_what_needs_installing ... ok
[INFO] [stdout] test inventory::tests::it_can_read_the_inventory ... ok
[INFO] [stdout] test symlinks::tests::it_creats_a_symmlink_when_executed ... ok
[INFO] [stdout] Hi there
[INFO] [stdout] test shell::tests::it_runs_a_simple_shell_command ... ok
[INFO] [stdout] test symlinks::tests::it_will_inform_about_removing_nonexisting_links ... ok
[INFO] [stdout] test symlinks::tests::it_will_inform_about_unnecessary_links ... ok
[INFO] [stdout] test symlinks::tests::it_will_interpolate_home_directory ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8a53d9aee5c8f82d126ed2926d5df9e20a850515379f7a1b2c3dd49f38bc54ba"`
[INFO] running `"docker" "rm" "-f" "8a53d9aee5c8f82d126ed2926d5df9e20a850515379f7a1b2c3dd49f38bc54ba"`
[INFO] [stdout] 8a53d9aee5c8f82d126ed2926d5df9e20a850515379f7a1b2c3dd49f38bc54ba