[INFO] crate mockers_derive 0.21.0 is already in cache
[INFO] checking mockers_derive-0.21.0 against nightly-2019-10-27 for pr-65897
[INFO] extracting crate mockers_derive 0.21.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate mockers_derive 0.21.0 on toolchain nightly-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mockers_derive 0.21.0
[INFO] finished tweaking crates.io crate mockers_derive 0.21.0
[INFO] tweaked toml for crates.io crate mockers_derive 0.21.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-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" "+nightly-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 135cf6f8a1fb8cc401718c111bd2429ffe514f750ebd52b633c4dbf625ca04cd
[INFO] running `"docker" "start" "-a" "135cf6f8a1fb8cc401718c111bd2429ffe514f750ebd52b633c4dbf625ca04cd"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]    Compiling proc-quote-impl v0.2.2
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]    Compiling proc-quote v0.2.2
[INFO] [stderr]    Compiling mockers_derive v0.21.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `mockers`
[INFO] [stderr]  --> tests/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use mockers;
[INFO] [stderr]   |     ^^^^^^^ no `mockers` external crate
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `mockers` in `{{root}}`
[INFO] [stderr]  --> tests/mod.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[mocked]
[INFO] [stderr]   | ^^^^^^^^^ could not find `mockers` in `{{root}}`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `mockers` in `{{root}}`
[INFO] [stderr]   --> tests/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / mock! {
[INFO] [stderr] 14 | |   BMock,
[INFO] [stderr] 15 | |   self,
[INFO] [stderr] 16 | |   trait B {
[INFO] [stderr] 17 | |       fn bar(&self);
[INFO] [stderr] 18 | |   }
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | | ^
[INFO] [stderr]    | | |
[INFO] [stderr]    | |_could not find `mockers` in `{{root}}`
[INFO] [stderr]    |   in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `mockers_derive`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "135cf6f8a1fb8cc401718c111bd2429ffe514f750ebd52b633c4dbf625ca04cd"`
[INFO] running `"docker" "rm" "-f" "135cf6f8a1fb8cc401718c111bd2429ffe514f750ebd52b633c4dbf625ca04cd"`
[INFO] [stdout] 135cf6f8a1fb8cc401718c111bd2429ffe514f750ebd52b633c4dbf625ca04cd