[INFO] updating cached repository pkgw/serenv
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pkgw/serenv
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pkgw/serenv" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/pkgw/serenv"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/pkgw/serenv'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pkgw/serenv" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/pkgw/serenv"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/pkgw/serenv'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 008c8d986831cede3fd954f09362434173cbcb44
[INFO] sha for GitHub repo pkgw/serenv: 008c8d986831cede3fd954f09362434173cbcb44
[INFO] validating manifest of pkgw/serenv on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pkgw/serenv on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pkgw/serenv
[INFO] finished frobbing pkgw/serenv
[INFO] frobbed toml for pkgw/serenv written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/pkgw/serenv/Cargo.toml
[INFO] started frobbing pkgw/serenv
[INFO] finished frobbing pkgw/serenv
[INFO] frobbed toml for pkgw/serenv written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/pkgw/serenv/Cargo.toml
[INFO] crate pkgw/serenv already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pkgw/serenv against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-4/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/pkgw/serenv:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7bf911ff99d2c4e7c37ead665f3fa54a6872a7e3cfa6b30f4dc9919fd921dccb
[INFO] running `"docker" "start" "-a" "7bf911ff99d2c4e7c37ead665f3fa54a6872a7e3cfa6b30f4dc9919fd921dccb"`
[INFO] [stderr]    Compiling cc v1.0.24
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]     Checking shell-escape v0.1.4
[INFO] [stderr]    Compiling syn v0.15.3
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]     Checking serenv v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.33s
[INFO] running `"docker" "inspect" "7bf911ff99d2c4e7c37ead665f3fa54a6872a7e3cfa6b30f4dc9919fd921dccb"`
[INFO] running `"docker" "rm" "-f" "7bf911ff99d2c4e7c37ead665f3fa54a6872a7e3cfa6b30f4dc9919fd921dccb"`
[INFO] [stdout] 7bf911ff99d2c4e7c37ead665f3fa54a6872a7e3cfa6b30f4dc9919fd921dccb