[INFO] cloning repository kainino0x/tmp-wamp-serialization-thing
[INFO] running `"git" "clone" "--bare" "git://github.com/kainino0x/tmp-wamp-serialization-thing.git" "work/cache/sources/gh/kainino0x/tmp-wamp-serialization-thing"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/kainino0x/tmp-wamp-serialization-thing'...
[INFO] running `"git" "clone" "work/cache/sources/gh/kainino0x/tmp-wamp-serialization-thing" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/kainino0x/tmp-wamp-serialization-thing"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/kainino0x/tmp-wamp-serialization-thing'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kainino0x/tmp-wamp-serialization-thing" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/kainino0x/tmp-wamp-serialization-thing"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/kainino0x/tmp-wamp-serialization-thing'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e315adbb196a19c2087a1fb189aaa9f04af79138
[INFO] sha for GitHub repo kainino0x/tmp-wamp-serialization-thing: e315adbb196a19c2087a1fb189aaa9f04af79138
[INFO] validating manifest of kainino0x/tmp-wamp-serialization-thing on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kainino0x/tmp-wamp-serialization-thing on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kainino0x/tmp-wamp-serialization-thing
[INFO] finished frobbing kainino0x/tmp-wamp-serialization-thing
[INFO] frobbed toml for kainino0x/tmp-wamp-serialization-thing written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/kainino0x/tmp-wamp-serialization-thing/Cargo.toml
[INFO] started frobbing kainino0x/tmp-wamp-serialization-thing
[INFO] finished frobbing kainino0x/tmp-wamp-serialization-thing
[INFO] frobbed toml for kainino0x/tmp-wamp-serialization-thing written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/kainino0x/tmp-wamp-serialization-thing/Cargo.toml
[INFO] crate kainino0x/tmp-wamp-serialization-thing already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/kainino0x/tmp-wamp-serialization-thing/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kainino0x/tmp-wamp-serialization-thing against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/kainino0x/tmp-wamp-serialization-thing:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dd9368d0a05344464e9e7c61d2b7b15fed4a6349f75a1a314fe5b88e4c23abff
[INFO] running `"docker" "start" "-a" "dd9368d0a05344464e9e7c61d2b7b15fed4a6349f75a1a314fe5b88e4c23abff"`
[INFO] [stderr]     Checking wampserializable v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:41:16
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let a: Box<MyEncodable> = Box::new(a);
[INFO] [stderr]    |                ^^^^^^^^^^^ help: use `dyn`: `dyn MyEncodable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:41:16
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let a: Box<MyEncodable> = Box::new(a);
[INFO] [stderr]    |                ^^^^^^^^^^^ help: use `dyn`: `dyn MyEncodable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "dd9368d0a05344464e9e7c61d2b7b15fed4a6349f75a1a314fe5b88e4c23abff"`
[INFO] running `"docker" "rm" "-f" "dd9368d0a05344464e9e7c61d2b7b15fed4a6349f75a1a314fe5b88e4c23abff"`
[INFO] [stdout] dd9368d0a05344464e9e7c61d2b7b15fed4a6349f75a1a314fe5b88e4c23abff