[INFO] crate ergothic 0.1.3 is already in cache
[INFO] extracting crate ergothic 0.1.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/ergothic/0.1.3
[INFO] extracting crate ergothic 0.1.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ergothic/0.1.3
[INFO] validating manifest of ergothic-0.1.3 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 ergothic-0.1.3 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 ergothic-0.1.3
[INFO] finished frobbing ergothic-0.1.3
[INFO] frobbed toml for ergothic-0.1.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ergothic/0.1.3/Cargo.toml
[INFO] started frobbing ergothic-0.1.3
[INFO] finished frobbing ergothic-0.1.3
[INFO] frobbed toml for ergothic-0.1.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ergothic/0.1.3/Cargo.toml
[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 ergothic-0.1.3 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/reg/ergothic/0.1.3:/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] 627bbbb6cb7bb27635bf05414657ab2ff750da132b47c2273405d733adfa045e
[INFO] running `"docker" "start" "-a" "627bbbb6cb7bb27635bf05414657ab2ff750da132b47c2273405d733adfa045e"`
[INFO] [stderr]    Compiling md5 v0.3.8
[INFO] [stderr]    Compiling try_from v0.2.2
[INFO] [stderr]    Compiling encode_unicode v0.3.5
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling separator v0.3.1
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling crypto-mac v0.6.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling simple_logger v0.5.0
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling sha-1 v0.7.0
[INFO] [stderr]    Compiling md-5 v0.7.0
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling hmac v0.6.3
[INFO] [stderr]    Compiling scan_fmt v0.1.3
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling prettytable-rs v0.7.0
[INFO] [stderr]    Compiling pbkdf2 v0.2.3
[INFO] [stderr]    Compiling textnonce v0.6.5
[INFO] [stderr]    Compiling bson v0.13.0
[INFO] [stderr]    Compiling bson v0.12.3
[INFO] [stderr]    Compiling mongodb v0.3.12
[INFO] [stderr]    Compiling ergothic v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/simulation.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |   pub exporter: Box<::export::Exporter>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::export::Exporter)`
[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/startup.rs:56:21
[INFO] [stderr]    |
[INFO] [stderr] 56 |   let exporter: Box<Exporter>;
[INFO] [stderr]    |                     ^^^^^^^^ help: use `dyn`: `dyn Exporter`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/export.rs:138:40
[INFO] [stderr]     |
[INFO] [stderr] 138 |       match self.collection.insert_one(doc, self.write_concern.clone()) {
[INFO] [stderr]     |                                        ^^^ expected struct `mongodb::ordered::OrderedDocument`, found struct `bson::ordered::OrderedDocument`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `mongodb::ordered::OrderedDocument`
[INFO] [stderr]                found type `bson::ordered::OrderedDocument`
[INFO] [stderr] note: Perhaps two different versions of crate `bson` are being used?
[INFO] [stderr]    --> src/export.rs:138:40
[INFO] [stderr]     |
[INFO] [stderr] 138 |       match self.collection.insert_one(doc, self.write_concern.clone()) {
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/export.rs:141:25
[INFO] [stderr]     |
[INFO] [stderr] 141 |             if let Some(::bson::Bson::ObjectId(id)) = res.inserted_id {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^    --------------- this match expression has type `mongodb::Bson`
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         expected enum `mongodb::Bson`, found enum `bson::Bson`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `mongodb::Bson`
[INFO] [stderr]                found type `bson::Bson`
[INFO] [stderr] note: Perhaps two different versions of crate `bson` are being used?
[INFO] [stderr]    --> src/export.rs:141:25
[INFO] [stderr]     |
[INFO] [stderr] 141 |             if let Some(::bson::Bson::ObjectId(id)) = res.inserted_id {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `ergothic`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "627bbbb6cb7bb27635bf05414657ab2ff750da132b47c2273405d733adfa045e"`
[INFO] running `"docker" "rm" "-f" "627bbbb6cb7bb27635bf05414657ab2ff750da132b47c2273405d733adfa045e"`
[INFO] [stdout] 627bbbb6cb7bb27635bf05414657ab2ff750da132b47c2273405d733adfa045e