[INFO] crate pycall 0.2.2 is already in cache
[INFO] checking pycall-0.2.2 against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] extracting crate pycall 0.2.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate pycall 0.2.2 on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pycall 0.2.2
[INFO] finished tweaking crates.io crate pycall 0.2.2
[INFO] tweaked toml for crates.io crate pycall 0.2.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate pycall 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] e22f03ab16fa1a788215d4c3cbcf535a76a2d3be164ecc34f14bda60ec631cf4
[INFO] running `"docker" "start" "-a" "e22f03ab16fa1a788215d4c3cbcf535a76a2d3be164ecc34f14bda60ec631cf4"`
[INFO] [stderr]     Checking pycall v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find function `quick_plot` in this scope
[INFO] [stderr]    --> src/lib.rs:400:38
[INFO] [stderr]     |
[INFO] [stderr] 400 |     let join = std::thread::spawn(|| quick_plot(&(-50..50).map(|x| (-x * x)).collect::<Vec<_>>()));
[INFO] [stderr]     |                                      ^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `pycall`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:111:13
[INFO] [stderr]     |
[INFO] [stderr] 111 |             handle.join();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:352:9
[INFO] [stderr]     |
[INFO] [stderr] 352 | /         writeln!(
[INFO] [stderr] 353 | |             &program.file,
[INFO] [stderr] 354 | |             "plt.plot({}, {}, {})",
[INFO] [stderr] 355 | |             PythonLitteral(x),
[INFO] [stderr] 356 | |             PythonLitteral(y),
[INFO] [stderr] 357 | |             PythonLitteral(args)
[INFO] [stderr] 358 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:368:9
[INFO] [stderr]     |
[INFO] [stderr] 368 | /         writeln!(
[INFO] [stderr] 369 | |             &program.file,
[INFO] [stderr] 370 | |             "plt.plot({}, {})",
[INFO] [stderr] 371 | |             PythonLitteral(x),
[INFO] [stderr] 372 | |             PythonLitteral(y),
[INFO] [stderr] 373 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:380:9
[INFO] [stderr]     |
[INFO] [stderr] 380 |         writeln!(&program.file, "plt.plot({})", PythonLitteral(y));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e22f03ab16fa1a788215d4c3cbcf535a76a2d3be164ecc34f14bda60ec631cf4"`
[INFO] running `"docker" "rm" "-f" "e22f03ab16fa1a788215d4c3cbcf535a76a2d3be164ecc34f14bda60ec631cf4"`
[INFO] [stdout] e22f03ab16fa1a788215d4c3cbcf535a76a2d3be164ecc34f14bda60ec631cf4