[INFO] updating cached repository icew4ll/cmd
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/icew4ll/cmd
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/icew4ll/cmd" "work/ex/beta-1.38-1/sources/1.37.0/gh/icew4ll/cmd"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/icew4ll/cmd'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/icew4ll/cmd" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/icew4ll/cmd"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/icew4ll/cmd'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f0274b46daa254fd2f939895d2b39112bf16aa88
[INFO] sha for GitHub repo icew4ll/cmd: f0274b46daa254fd2f939895d2b39112bf16aa88
[INFO] validating manifest of icew4ll/cmd on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of icew4ll/cmd on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing icew4ll/cmd
[INFO] finished frobbing icew4ll/cmd
[INFO] frobbed toml for icew4ll/cmd written to work/ex/beta-1.38-1/sources/1.37.0/gh/icew4ll/cmd/Cargo.toml
[INFO] started frobbing icew4ll/cmd
[INFO] finished frobbing icew4ll/cmd
[INFO] frobbed toml for icew4ll/cmd written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/icew4ll/cmd/Cargo.toml
[INFO] crate icew4ll/cmd already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing icew4ll/cmd against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/icew4ll/cmd:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] dfcfc751170d2993ec50fb9a5700f5ba542845dd49b4d67de84dc74bbae4d772
[INFO] running `"docker" "start" "-a" "dfcfc751170d2993ec50fb9a5700f5ba542845dd49b4d67de84dc74bbae4d772"`
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling shared_child v0.3.2
[INFO] [stderr]    Compiling chrono v0.4.3
[INFO] [stderr]    Compiling dotenv_codegen_impl v0.1.0
[INFO] [stderr]    Compiling dotenv_codegen v0.11.0
[INFO] [stderr] error: proc-macro derive panicked
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/dotenv_codegen-0.11.0/src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | / proc_macro_expr_decl! {
[INFO] [stderr] 11 | |     dotenv! => expand_dotenv
[INFO] [stderr] 12 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = help: message: assertion failed: `(left == right)`
[INFO] [stderr]              left: `Some("#[allow(unused,")`,
[INFO] [stderr]             right: `Some("#[allow(unused")`
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `dotenv_codegen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "dfcfc751170d2993ec50fb9a5700f5ba542845dd49b4d67de84dc74bbae4d772"`
[INFO] running `"docker" "rm" "-f" "dfcfc751170d2993ec50fb9a5700f5ba542845dd49b4d67de84dc74bbae4d772"`
[INFO] [stdout] dfcfc751170d2993ec50fb9a5700f5ba542845dd49b4d67de84dc74bbae4d772