[INFO] updating cached repository m1el/flamegraph-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/m1el/flamegraph-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/m1el/flamegraph-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/m1el/flamegraph-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/m1el/flamegraph-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/m1el/flamegraph-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/m1el/flamegraph-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/m1el/flamegraph-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bcf97f8e45a20c94dfa00dbea7db16439370e2f5
[INFO] sha for GitHub repo m1el/flamegraph-rs: bcf97f8e45a20c94dfa00dbea7db16439370e2f5
[INFO] validating manifest of m1el/flamegraph-rs on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of m1el/flamegraph-rs on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing m1el/flamegraph-rs
[INFO] finished frobbing m1el/flamegraph-rs
[INFO] frobbed toml for m1el/flamegraph-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/m1el/flamegraph-rs/Cargo.toml
[INFO] started frobbing m1el/flamegraph-rs
[INFO] finished frobbing m1el/flamegraph-rs
[INFO] frobbed toml for m1el/flamegraph-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/m1el/flamegraph-rs/Cargo.toml
[INFO] crate m1el/flamegraph-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing m1el/flamegraph-rs against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/m1el/flamegraph-rs:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 6a200a2b5edda4c62624bf6d7a8b832235dadff36baed519dbc93a73d2da0de1
[INFO] running `"docker" "start" "-a" "6a200a2b5edda4c62624bf6d7a8b832235dadff36baed519dbc93a73d2da0de1"`
[INFO] [stderr]    Compiling string-interner v0.7.0
[INFO] [stderr]    Compiling flamegraph v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0583]: file not found for module `xml_escape`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | mod xml_escape;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: name the file either xml_escape.rs or xml_escape/mod.rs inside the directory "src"
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0583`.
[INFO] [stderr] error: Could not compile `flamegraph`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6a200a2b5edda4c62624bf6d7a8b832235dadff36baed519dbc93a73d2da0de1"`
[INFO] running `"docker" "rm" "-f" "6a200a2b5edda4c62624bf6d7a8b832235dadff36baed519dbc93a73d2da0de1"`
[INFO] [stdout] 6a200a2b5edda4c62624bf6d7a8b832235dadff36baed519dbc93a73d2da0de1