[INFO] updating cached repository garbas/nix-installer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/garbas/nix-installer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/garbas/nix-installer" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/garbas/nix-installer"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/garbas/nix-installer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/garbas/nix-installer" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/garbas/nix-installer"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/garbas/nix-installer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be377a9fddc2ebcd212d6600824609e8f2371a39
[INFO] sha for GitHub repo garbas/nix-installer: be377a9fddc2ebcd212d6600824609e8f2371a39
[INFO] validating manifest of garbas/nix-installer on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of garbas/nix-installer on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing garbas/nix-installer
[INFO] finished frobbing garbas/nix-installer
[INFO] frobbed toml for garbas/nix-installer written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/garbas/nix-installer/Cargo.toml
[INFO] started frobbing garbas/nix-installer
[INFO] finished frobbing garbas/nix-installer
[INFO] frobbed toml for garbas/nix-installer written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/garbas/nix-installer/Cargo.toml
[INFO] crate garbas/nix-installer has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking garbas/nix-installer against try#29640c57b5f92febba0e40c50cb863c9a7ede51d for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-2/try#29640c57b5f92febba0e40c50cb863c9a7ede51d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/garbas/nix-installer:/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" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bc2986a084f22a97994d133d37f8dd94991da2d6c39db6d7c783a5b7e277f5f3
[INFO] running `"docker" "start" "-a" "bc2986a084f22a97994d133d37f8dd94991da2d6c39db6d7c783a5b7e277f5f3"`
[INFO] [stderr]    Compiling bzip2-sys v0.1.5
[INFO] [stderr]     Checking xattr v0.1.10
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]     Checking tar v0.4.10
[INFO] [stderr]     Checking bzip2 v0.3.1
[INFO] [stderr]     Checking nix-installer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/bin/nix-installer.rs:73:70
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let temp_dir = TempDir::new("nix-installer").unwrap_or_else(|e| panic!("Could not create temporary directory"));
[INFO] [stderr]    |                                                                      ^ help: consider using `_e` instead
[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/bin/nix-installer.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |         ar.unpack(temp_dir.path());
[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 variable: `e`
[INFO] [stderr]   --> src/bin/nix-installer.rs:73:70
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let temp_dir = TempDir::new("nix-installer").unwrap_or_else(|e| panic!("Could not create temporary directory"));
[INFO] [stderr]    |                                                                      ^ help: consider using `_e` instead
[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/bin/nix-installer.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |         ar.unpack(temp_dir.path());
[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 5.29s
[INFO] running `"docker" "inspect" "bc2986a084f22a97994d133d37f8dd94991da2d6c39db6d7c783a5b7e277f5f3"`
[INFO] running `"docker" "rm" "-f" "bc2986a084f22a97994d133d37f8dd94991da2d6c39db6d7c783a5b7e277f5f3"`
[INFO] [stdout] bc2986a084f22a97994d133d37f8dd94991da2d6c39db6d7c783a5b7e277f5f3