[INFO] updating cached repository SteamPoweredAnimal/approx
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SteamPoweredAnimal/approx
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SteamPoweredAnimal/approx" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/SteamPoweredAnimal/approx"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/SteamPoweredAnimal/approx'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SteamPoweredAnimal/approx" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/SteamPoweredAnimal/approx"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/SteamPoweredAnimal/approx'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 04130cb0a6acb1faf2b5204afb1945dd674b38f7
[INFO] sha for GitHub repo SteamPoweredAnimal/approx: 04130cb0a6acb1faf2b5204afb1945dd674b38f7
[INFO] validating manifest of SteamPoweredAnimal/approx on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of SteamPoweredAnimal/approx on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing SteamPoweredAnimal/approx
[INFO] finished frobbing SteamPoweredAnimal/approx
[INFO] frobbed toml for SteamPoweredAnimal/approx written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/SteamPoweredAnimal/approx/Cargo.toml
[INFO] started frobbing SteamPoweredAnimal/approx
[INFO] finished frobbing SteamPoweredAnimal/approx
[INFO] frobbed toml for SteamPoweredAnimal/approx written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/SteamPoweredAnimal/approx/Cargo.toml
[INFO] crate SteamPoweredAnimal/approx already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking SteamPoweredAnimal/approx against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-3/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/SteamPoweredAnimal/approx:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0e672eced0d1bc606593933f7be1ab5a2e2585720320222e5a4c68a8744806e3
[INFO] running `"docker" "start" "-a" "0e672eced0d1bc606593933f7be1ab5a2e2585720320222e5a4c68a8744806e3"`
[INFO] [stderr]    Compiling approx v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling test-case-derive v0.2.1
[INFO] [stderr]    Compiling syn v0.15.25
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr] warning: unused import: `failure::Fail`
[INFO] [stderr]   --> src/dto/config.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |             use failure::Fail;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]  --> src/lib.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn generate(config: Config) -> Result<(), Error> {
[INFO] [stderr]   |                 ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]  --> src/lib.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn generate(config: Config) -> Result<(), Error> {
[INFO] [stderr]   |                 ^^^^^^ help: consider prefixing with an underscore: `_config`
[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/lib.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |             fs::remove_dir_all(actual);
[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 26.14s
[INFO] running `"docker" "inspect" "0e672eced0d1bc606593933f7be1ab5a2e2585720320222e5a4c68a8744806e3"`
[INFO] running `"docker" "rm" "-f" "0e672eced0d1bc606593933f7be1ab5a2e2585720320222e5a4c68a8744806e3"`
[INFO] [stdout] 0e672eced0d1bc606593933f7be1ab5a2e2585720320222e5a4c68a8744806e3