[INFO] updating cached repository kbacha/standup-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kbacha/standup-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kbacha/standup-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/kbacha/standup-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kbacha/standup-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kbacha/standup-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kbacha/standup-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kbacha/standup-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 42a125b44a9271db2eef263be9d84190459c0201
[INFO] sha for GitHub repo kbacha/standup-rs: 42a125b44a9271db2eef263be9d84190459c0201
[INFO] validating manifest of kbacha/standup-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 kbacha/standup-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 kbacha/standup-rs
[INFO] finished frobbing kbacha/standup-rs
[INFO] frobbed toml for kbacha/standup-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/kbacha/standup-rs/Cargo.toml
[INFO] started frobbing kbacha/standup-rs
[INFO] finished frobbing kbacha/standup-rs
[INFO] frobbed toml for kbacha/standup-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kbacha/standup-rs/Cargo.toml
[INFO] crate kbacha/standup-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/kbacha/standup-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[INFO] the lockfile is outdated, regenerating it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 kbacha/standup-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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kbacha/standup-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] e0d2aa6a0d60cbd55a963f58fd171000b092decd4c8a77f6a4aedcc6a1c452ac
[INFO] running `"docker" "start" "-a" "e0d2aa6a0d60cbd55a963f58fd171000b092decd4c8a77f6a4aedcc6a1c452ac"`
[INFO] [stderr]    Compiling standup v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `serde_json::builder`
[INFO] [stderr]  --> src/jsonify.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use serde_json::builder::ObjectBuilder;
[INFO] [stderr]   |                 ^^^^^^^ could not find `builder` in `serde_json`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]  --> src/app.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::env::home_dir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/app.rs:34:15
[INFO] [stderr]    |
[INFO] [stderr] 34 |         match home_dir() {
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_string` found for type `&serde_json::Value` in the current scope
[INFO] [stderr]   --> src/jsonify.rs:44:36
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 .map(|value| value.as_string())
[INFO] [stderr]    |                                    ^^^^^^^^^ help: there is a method with a similar name: `is_string`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_string` found for type `&serde_json::Value` in the current scope
[INFO] [stderr]   --> src/jsonify.rs:53:43
[INFO] [stderr]    |
[INFO] [stderr] 53 |         .and_then(|date_value| date_value.as_string())
[INFO] [stderr]    |                                           ^^^^^^^^^ help: there is a method with a similar name: `is_string`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `standup`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e0d2aa6a0d60cbd55a963f58fd171000b092decd4c8a77f6a4aedcc6a1c452ac"`
[INFO] running `"docker" "rm" "-f" "e0d2aa6a0d60cbd55a963f58fd171000b092decd4c8a77f6a4aedcc6a1c452ac"`
[INFO] [stdout] e0d2aa6a0d60cbd55a963f58fd171000b092decd4c8a77f6a4aedcc6a1c452ac