[INFO] updating cached repository https://github.com/jonfast565/SimpleScheduler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 509e978583d306b008355fef148fdcbb15d6ae73
[INFO] testing jonfast565/SimpleScheduler against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonfast565%2FSimpleScheduler" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonfast565/SimpleScheduler on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jonfast565/SimpleScheduler
[INFO] finished tweaking git repo https://github.com/jonfast565/SimpleScheduler
[INFO] tweaked toml for git repo https://github.com/jonfast565/SimpleScheduler written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jonfast565/SimpleScheduler already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 50161729f93220d4416207206dab220ca6cc4bdd2172068a7d9c7ebf6bd40827
[INFO] running `"docker" "start" "-a" "50161729f93220d4416207206dab220ca6cc4bdd2172068a7d9c7ebf6bd40827"`
[INFO] [stderr]    Compiling simple_scheduler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: cannot find derive macro `Serialize` in this scope
[INFO] [stderr]  --> src/jobs.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]   |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stderr]  --> src/jobs.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Serialize, Deserialize)]
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: crate `serde` is private
[INFO] [stderr]  --> src/jobs.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde_json::serde::{Deserialize, Serialize};
[INFO] [stderr]   |                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/jobs.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde_json::serde::{Deserialize, Serialize};
[INFO] [stderr]   |                         ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::Result`
[INFO] [stderr]  --> src/jobs.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde_json::Result;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0603`.
[INFO] [stderr] error: Could not compile `simple_scheduler`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "50161729f93220d4416207206dab220ca6cc4bdd2172068a7d9c7ebf6bd40827"`
[INFO] running `"docker" "rm" "-f" "50161729f93220d4416207206dab220ca6cc4bdd2172068a7d9c7ebf6bd40827"`
[INFO] [stdout] 50161729f93220d4416207206dab220ca6cc4bdd2172068a7d9c7ebf6bd40827