[INFO] updating cached repository umigv/rust_edge_logger
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/umigv/rust_edge_logger
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/umigv/rust_edge_logger" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/umigv/rust_edge_logger"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/umigv/rust_edge_logger'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/umigv/rust_edge_logger" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/umigv/rust_edge_logger"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/umigv/rust_edge_logger'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c918b25fe6d788234b4cb64515287abf28cdc3cc
[INFO] sha for GitHub repo umigv/rust_edge_logger: c918b25fe6d788234b4cb64515287abf28cdc3cc
[INFO] validating manifest of umigv/rust_edge_logger on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of umigv/rust_edge_logger on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing umigv/rust_edge_logger
[INFO] finished frobbing umigv/rust_edge_logger
[INFO] frobbed toml for umigv/rust_edge_logger written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/umigv/rust_edge_logger/Cargo.toml
[INFO] started frobbing umigv/rust_edge_logger
[INFO] finished frobbing umigv/rust_edge_logger
[INFO] frobbed toml for umigv/rust_edge_logger written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/umigv/rust_edge_logger/Cargo.toml
[INFO] crate umigv/rust_edge_logger already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking umigv/rust_edge_logger against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-6/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/umigv/rust_edge_logger:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 964c95f4cdd826425027fb3aa65d012b24c1c8aa54d1a1d7bf1f019a3244acdb
[INFO] running `"docker" "start" "-a" "964c95f4cdd826425027fb3aa65d012b24c1c8aa54d1a1d7bf1f019a3244acdb"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/log_edgescan.rs` was erroneously implicitly accepted for library `log_edgescan`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]    Compiling rust_edge_logger v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> build.rs:7:6
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut dirs = match env::var(variable) {
[INFO] [stderr]   |         ----^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> build.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut dir_iter = dirs.split(":");
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "964c95f4cdd826425027fb3aa65d012b24c1c8aa54d1a1d7bf1f019a3244acdb"`
[INFO] running `"docker" "rm" "-f" "964c95f4cdd826425027fb3aa65d012b24c1c8aa54d1a1d7bf1f019a3244acdb"`
[INFO] [stdout] 964c95f4cdd826425027fb3aa65d012b24c1c8aa54d1a1d7bf1f019a3244acdb