[INFO] cloning repository GeertVL/rs-rop-example
[INFO] running `"git" "clone" "--bare" "git://github.com/GeertVL/rs-rop-example.git" "work/cache/sources/gh/GeertVL/rs-rop-example"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/GeertVL/rs-rop-example'...
[INFO] running `"git" "clone" "work/cache/sources/gh/GeertVL/rs-rop-example" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/GeertVL/rs-rop-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/GeertVL/rs-rop-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GeertVL/rs-rop-example" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/GeertVL/rs-rop-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/GeertVL/rs-rop-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 42d88d225945b5ac4ac31f970967a99470d8e1e1
[INFO] sha for GitHub repo GeertVL/rs-rop-example: 42d88d225945b5ac4ac31f970967a99470d8e1e1
[INFO] validating manifest of GeertVL/rs-rop-example on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of GeertVL/rs-rop-example on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing GeertVL/rs-rop-example
[INFO] finished frobbing GeertVL/rs-rop-example
[INFO] frobbed toml for GeertVL/rs-rop-example written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/GeertVL/rs-rop-example/Cargo.toml
[INFO] started frobbing GeertVL/rs-rop-example
[INFO] finished frobbing GeertVL/rs-rop-example
[INFO] frobbed toml for GeertVL/rs-rop-example written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/GeertVL/rs-rop-example/Cargo.toml
[INFO] crate GeertVL/rs-rop-example already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking GeertVL/rs-rop-example against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-3/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/GeertVL/rs-rop-example:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 28812501a21d9a0520379a336a3ac0576ce5a05a9b8ebb4f91c5a6eb271dde0d
[INFO] running `"docker" "start" "-a" "28812501a21d9a0520379a336a3ac0576ce5a05a9b8ebb4f91c5a6eb271dde0d"`
[INFO] [stderr]     Checking RsRopExample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/rop/utils.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     RopResult::Failure(Option::Some(vec![msg]))
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^ expected struct `std::vec::Vec`, found enum `std::option::Option`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `std::vec::Vec<_>`
[INFO] [stderr]               found type `std::option::Option<std::vec::Vec<_>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `RsRopExample`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/rop/utils.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     RopResult::Failure(Option::Some(vec![msg]))
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^ expected struct `std::vec::Vec`, found enum `std::option::Option`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `std::vec::Vec<_>`
[INFO] [stderr]               found type `std::option::Option<std::vec::Vec<_>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `RsRopExample`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "28812501a21d9a0520379a336a3ac0576ce5a05a9b8ebb4f91c5a6eb271dde0d"`
[INFO] running `"docker" "rm" "-f" "28812501a21d9a0520379a336a3ac0576ce5a05a9b8ebb4f91c5a6eb271dde0d"`
[INFO] [stdout] 28812501a21d9a0520379a336a3ac0576ce5a05a9b8ebb4f91c5a6eb271dde0d