[INFO] updating cached repository Nebopolis/avro-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Nebopolis/avro-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Nebopolis/avro-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/Nebopolis/avro-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Nebopolis/avro-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Nebopolis/avro-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nebopolis/avro-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nebopolis/avro-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 36c79c37f05449b352d83e5dbd6c2bfa41838663
[INFO] sha for GitHub repo Nebopolis/avro-rs: 36c79c37f05449b352d83e5dbd6c2bfa41838663
[INFO] validating manifest of Nebopolis/avro-rs 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 Nebopolis/avro-rs 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 Nebopolis/avro-rs
[INFO] finished frobbing Nebopolis/avro-rs
[INFO] frobbed toml for Nebopolis/avro-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/Nebopolis/avro-rs/Cargo.toml
[INFO] started frobbing Nebopolis/avro-rs
[INFO] finished frobbing Nebopolis/avro-rs
[INFO] frobbed toml for Nebopolis/avro-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nebopolis/avro-rs/Cargo.toml
[INFO] crate Nebopolis/avro-rs 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Nebopolis/avro-rs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 Nebopolis/avro-rs against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Nebopolis/avro-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5158aec073a0fe916f840af835b36cc63cd89239ecc40a9a3fa177948ecaf3c1
[INFO] running `"docker" "start" "-a" "5158aec073a0fe916f840af835b36cc63cd89239ecc40a9a3fa177948ecaf3c1"`
[INFO] [stderr]    Compiling avro v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0405]: cannot find trait `MapVisitor` in module `serde::ser`
[INFO] [stderr]    --> src/lib.rs:110:24
[INFO] [stderr]     |
[INFO] [stderr] 110 |   impl<'a> serde::ser::MapVisitor for MapVisitor<'a, Fixed> {
[INFO] [stderr]     |                        ^^^^^^^^^^ not found in `serde::ser`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `MapVisitor` in module `serde::ser`
[INFO] [stderr]    --> src/lib.rs:149:24
[INFO] [stderr]     |
[INFO] [stderr] 149 |   impl<'a> serde::ser::MapVisitor for MapVisitor<'a, Enum> {
[INFO] [stderr]     |                        ^^^^^^^^^^ not found in `serde::ser`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `MapVisitor` in module `serde::ser`
[INFO] [stderr]    --> src/lib.rs:192:24
[INFO] [stderr]     |
[INFO] [stderr] 192 |   impl<'a> serde::ser::MapVisitor for MapVisitor<'a, Record> {
[INFO] [stderr]     |                        ^^^^^^^^^^ not found in `serde::ser`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `MapVisitor` in module `serde::ser`
[INFO] [stderr]    --> src/lib.rs:248:24
[INFO] [stderr]     |
[INFO] [stderr] 248 |   impl<'a> serde::ser::MapVisitor for MapVisitor<'a, Field> {
[INFO] [stderr]     |                        ^^^^^^^^^^ not found in `serde::ser`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `avro`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5158aec073a0fe916f840af835b36cc63cd89239ecc40a9a3fa177948ecaf3c1"`
[INFO] running `"docker" "rm" "-f" "5158aec073a0fe916f840af835b36cc63cd89239ecc40a9a3fa177948ecaf3c1"`
[INFO] [stdout] 5158aec073a0fe916f840af835b36cc63cd89239ecc40a9a3fa177948ecaf3c1