[INFO] updating cached repository https://github.com/nordberg/rust-factorization
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 16adb817add98ed3b70adf372e36c6eaed75e0b7
[INFO] checking nordberg/rust-factorization against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnordberg%2Frust-factorization" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nordberg/rust-factorization on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nordberg/rust-factorization
[INFO] finished tweaking git repo https://github.com/nordberg/rust-factorization
[INFO] tweaked toml for git repo https://github.com/nordberg/rust-factorization written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/nordberg/rust-factorization already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] 0f646c16620e753d97093a64edcb7725ade0eea60a895bcd560b7135e7390860
[INFO] running `"docker" "start" "-a" "0f646c16620e753d97093a64edcb7725ade0eea60a895bcd560b7135e7390860"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking factorization v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:20:31
[INFO] [stderr]    |
[INFO] [stderr] 20 |     assert_eq!(factorization::build_factor_string(9), "3^2");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:21:31
[INFO] [stderr]    |
[INFO] [stderr] 21 |     assert_eq!(factorization::build_factor_string(25), "5^2");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:22:31
[INFO] [stderr]    |
[INFO] [stderr] 22 |     assert_eq!(factorization::build_factor_string(64), "8^2");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:27:31
[INFO] [stderr]    |
[INFO] [stderr] 27 |     assert_eq!(factorization::build_factor_string(2), "2^1");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:28:31
[INFO] [stderr]    |
[INFO] [stderr] 28 |     assert_eq!(factorization::build_factor_string(4), "2^2");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:29:31
[INFO] [stderr]    |
[INFO] [stderr] 29 |     assert_eq!(factorization::build_factor_string(8), "2^3");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:30:31
[INFO] [stderr]    |
[INFO] [stderr] 30 |     assert_eq!(factorization::build_factor_string(16), "2^4");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:31:31
[INFO] [stderr]    |
[INFO] [stderr] 31 |     assert_eq!(factorization::build_factor_string(32), "2^5");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:32:31
[INFO] [stderr]    |
[INFO] [stderr] 32 |     assert_eq!(factorization::build_factor_string(64), "2^6");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `build_factor_string` in crate `factorization`
[INFO] [stderr]   --> tests/lib.rs:33:31
[INFO] [stderr]    |
[INFO] [stderr] 33 |     assert_eq!(factorization::build_factor_string(128), "2^7");
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `factorization`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 10 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `factorization`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0f646c16620e753d97093a64edcb7725ade0eea60a895bcd560b7135e7390860"`
[INFO] running `"docker" "rm" "-f" "0f646c16620e753d97093a64edcb7725ade0eea60a895bcd560b7135e7390860"`
[INFO] [stdout] 0f646c16620e753d97093a64edcb7725ade0eea60a895bcd560b7135e7390860