[INFO] updating cached repository Dylan-DPC/cargo-caldera
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Dylan-DPC/cargo-caldera
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Dylan-DPC/cargo-caldera" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/Dylan-DPC/cargo-caldera"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/Dylan-DPC/cargo-caldera'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Dylan-DPC/cargo-caldera" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Dylan-DPC/cargo-caldera"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Dylan-DPC/cargo-caldera'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 271e492865081a1f33f9ead3e57d3ba6ca9edaf4
[INFO] sha for GitHub repo Dylan-DPC/cargo-caldera: 271e492865081a1f33f9ead3e57d3ba6ca9edaf4
[INFO] validating manifest of Dylan-DPC/cargo-caldera on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Dylan-DPC/cargo-caldera on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Dylan-DPC/cargo-caldera
[INFO] finished frobbing Dylan-DPC/cargo-caldera
[INFO] frobbed toml for Dylan-DPC/cargo-caldera written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/Dylan-DPC/cargo-caldera/Cargo.toml
[INFO] started frobbing Dylan-DPC/cargo-caldera
[INFO] finished frobbing Dylan-DPC/cargo-caldera
[INFO] frobbed toml for Dylan-DPC/cargo-caldera written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Dylan-DPC/cargo-caldera/Cargo.toml
[INFO] crate Dylan-DPC/cargo-caldera already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Dylan-DPC/cargo-caldera against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-7/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Dylan-DPC/cargo-caldera:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1ff5d3ed732e92f7f198ec95b7d9ad84a1357cc3277b59c829a78c071708ff47
[INFO] running `"docker" "start" "-a" "1ff5d3ed732e92f7f198ec95b7d9ad84a1357cc3277b59c829a78c071708ff47"`
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking cargo-caldera v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `path::PathBuf`
[INFO] [stderr]  --> src/main.rs:2:22
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{io::Write, path::PathBuf};
[INFO] [stderr]   |                      ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `path::PathBuf`
[INFO] [stderr]  --> src/main.rs:2:22
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{io::Write, path::PathBuf};
[INFO] [stderr]   |                      ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opt`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let opt = Cli::from_args();
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_opt`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/runner.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn version(path: &Path) -> Result<Version, Box<dyn Error>> {
[INFO] [stderr]    |                    ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opt`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let opt = Cli::from_args();
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_opt`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/runner.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn version(path: &Path) -> Result<Version, Box<dyn Error>> {
[INFO] [stderr]    |                    ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.25s
[INFO] running `"docker" "inspect" "1ff5d3ed732e92f7f198ec95b7d9ad84a1357cc3277b59c829a78c071708ff47"`
[INFO] running `"docker" "rm" "-f" "1ff5d3ed732e92f7f198ec95b7d9ad84a1357cc3277b59c829a78c071708ff47"`
[INFO] [stdout] 1ff5d3ed732e92f7f198ec95b7d9ad84a1357cc3277b59c829a78c071708ff47