[INFO] updating cached repository https://github.com/chrisbutcher/huffman-coding-rust
[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] 499395f28055deed479795f132a93eb0627b039f
[INFO] checking chrisbutcher/huffman-coding-rust against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisbutcher%2Fhuffman-coding-rust" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chrisbutcher/huffman-coding-rust on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/chrisbutcher/huffman-coding-rust
[INFO] finished tweaking git repo https://github.com/chrisbutcher/huffman-coding-rust
[INFO] tweaked toml for git repo https://github.com/chrisbutcher/huffman-coding-rust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/chrisbutcher/huffman-coding-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-13/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e7c05a02ecc7aae353c954bc1f355a7857be3ea73d990ac099aed8f6c056fa61
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e7c05a02ecc7aae353c954bc1f355a7857be3ea73d990ac099aed8f6c056fa61"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking huffman_coding v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments
[INFO] [stderr]   --> src/codebook.rs:92:26
[INFO] [stderr]    |
[INFO] [stderr] 92 |       threads.push(scope.spawn(move || {
[INFO] [stderr]    |                          ^^^^^ ------- takes 0 arguments
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          expected closure that takes 1 argument
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the closure to take and ignore the expected argument
[INFO] [stderr]    |
[INFO] [stderr] 92 |       threads.push(scope.spawn(move |_| {
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments
[INFO] [stderr]   --> src/codebook.rs:92:26
[INFO] [stderr]    |
[INFO] [stderr] 92 |       threads.push(scope.spawn(move || {
[INFO] [stderr]    |                          ^^^^^ ------- takes 0 arguments
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          expected closure that takes 1 argument
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the closure to take and ignore the expected argument
[INFO] [stderr]    |
[INFO] [stderr] 92 |       threads.push(scope.spawn(move |_| {
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/codebook.rs:105:26
[INFO] [stderr]     |
[INFO] [stderr] 105 |   util::hash_map_reducer(results)
[INFO] [stderr]     |                          ^^^^^^^ expected struct `std::collections::HashMap`, found enum `std::result::Result`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected struct `std::vec::Vec<std::collections::HashMap<char, usize>>`
[INFO] [stderr]                found struct `std::vec::Vec<std::result::Result<_, std::boxed::Box<dyn std::any::Any + std::marker::Send>>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/codebook.rs:105:26
[INFO] [stderr]     |
[INFO] [stderr] 105 |   util::hash_map_reducer(results)
[INFO] [stderr]     |                          ^^^^^^^ expected struct `std::collections::HashMap`, found enum `std::result::Result`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected struct `std::vec::Vec<std::collections::HashMap<char, usize>>`
[INFO] [stderr]                found struct `std::vec::Vec<std::result::Result<_, std::boxed::Box<dyn std::any::Any + std::marker::Send>>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments
[INFO] [stderr]   --> src/compress.rs:38:26
[INFO] [stderr]    |
[INFO] [stderr] 38 |       threads.push(scope.spawn(move|| {
[INFO] [stderr]    |                          ^^^^^ ------ takes 0 arguments
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          expected closure that takes 1 argument
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the closure to take and ignore the expected argument
[INFO] [stderr]    |
[INFO] [stderr] 38 |       threads.push(scope.spawn(|_| {
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments
[INFO] [stderr]   --> src/compress.rs:38:26
[INFO] [stderr]    |
[INFO] [stderr] 38 |       threads.push(scope.spawn(move|| {
[INFO] [stderr]    |                          ^^^^^ ------ takes 0 arguments
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          expected closure that takes 1 argument
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the closure to take and ignore the expected argument
[INFO] [stderr]    |
[INFO] [stderr] 38 |       threads.push(scope.spawn(|_| {
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/compress.rs:51:3
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn parallel_compress(substrings: &Vec<&str>, codebook: &codebook::Codebook) -> Vec<CompressionResult> {
[INFO] [stderr]    |                                                                                    ---------------------- expected `std::vec::Vec<compress::CompressionResult>` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 51 |   results
[INFO] [stderr]    |   ^^^^^^^ expected struct `compress::CompressionResult`, found enum `std::result::Result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected struct `std::vec::Vec<compress::CompressionResult>`
[INFO] [stderr]               found struct `std::vec::Vec<std::result::Result<_, std::boxed::Box<dyn std::any::Any + std::marker::Send>>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/compress.rs:51:3
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn parallel_compress(substrings: &Vec<&str>, codebook: &codebook::Codebook) -> Vec<CompressionResult> {
[INFO] [stderr]    |                                                                                    ---------------------- expected `std::vec::Vec<compress::CompressionResult>` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 51 |   results
[INFO] [stderr]    |   ^^^^^^^ expected struct `compress::CompressionResult`, found enum `std::result::Result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected struct `std::vec::Vec<compress::CompressionResult>`
[INFO] [stderr]               found struct `std::vec::Vec<std::result::Result<_, std::boxed::Box<dyn std::any::Any + std::marker::Send>>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0593.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `huffman_coding`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0593.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `huffman_coding`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e7c05a02ecc7aae353c954bc1f355a7857be3ea73d990ac099aed8f6c056fa61"`
[INFO] running `"docker" "rm" "-f" "e7c05a02ecc7aae353c954bc1f355a7857be3ea73d990ac099aed8f6c056fa61"`
[INFO] [stdout] e7c05a02ecc7aae353c954bc1f355a7857be3ea73d990ac099aed8f6c056fa61
