[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-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/umigv/rust_edge_logger"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/umigv/rust_edge_logger'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/umigv/rust_edge_logger" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/umigv/rust_edge_logger"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of umigv/rust_edge_logger on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-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-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/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-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking umigv/rust_edge_logger against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b55c96868eb29db8b4d1a421dae621135013414c4022da8750ca4805ac63b929
[INFO] running `"docker" "start" "-a" "b55c96868eb29db8b4d1a421dae621135013414c4022da8750ca4805ac63b929"`
[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" "b55c96868eb29db8b4d1a421dae621135013414c4022da8750ca4805ac63b929"`
[INFO] running `"docker" "rm" "-f" "b55c96868eb29db8b4d1a421dae621135013414c4022da8750ca4805ac63b929"`
[INFO] [stdout] b55c96868eb29db8b4d1a421dae621135013414c4022da8750ca4805ac63b929