[INFO] cloning repository https://github.com/alecdotninja/wikipedia-word-counter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alecdotninja/wikipedia-word-counter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falecdotninja%2Fwikipedia-word-counter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falecdotninja%2Fwikipedia-word-counter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bdef74c4d7a3110ae2b5d35f3c82548a93840387
[INFO] testing alecdotninja/wikipedia-word-counter against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falecdotninja%2Fwikipedia-word-counter" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alecdotninja/wikipedia-word-counter on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alecdotninja/wikipedia-word-counter
[INFO] finished tweaking git repo https://github.com/alecdotninja/wikipedia-word-counter
[INFO] tweaked toml for git repo https://github.com/alecdotninja/wikipedia-word-counter written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/alecdotninja/wikipedia-word-counter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/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[INFO] the lockfile is outdated, regenerating it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 `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1b949abf52cb63eb60ab4deda187da476a6276a8e2eeabce2a7d5c7c189d625
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d1b949abf52cb63eb60ab4deda187da476a6276a8e2eeabce2a7d5c7c189d625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1b949abf52cb63eb60ab4deda187da476a6276a8e2eeabce2a7d5c7c189d625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b949abf52cb63eb60ab4deda187da476a6276a8e2eeabce2a7d5c7c189d625", kill_on_drop: false }`
[INFO] [stdout] d1b949abf52cb63eb60ab4deda187da476a6276a8e2eeabce2a7d5c7c189d625
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9b0d5119178a7cb68b87c2bbe6a9660ff899e465ff935b6aa0bf25f5a96889ec
[INFO] running `Command { std: "docker" "start" "-a" "9b0d5119178a7cb68b87c2bbe6a9660ff899e465ff935b6aa0bf25f5a96889ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling parse_wiki_text v0.1.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling quick-xml v0.12.4
[INFO] [stderr]    Compiling parse_mediawiki_dump v0.1.0
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling wikipedia-word-counter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `std::io::BufReader<std::io::Stdin>: std::io::Write` is not satisfied
[INFO] [stdout]   --> src/main.rs:17:51
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut csv_writer = csv::Writer::from_writer(buffered_stdin());
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `std::io::BufReader<std::io::Stdin>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required by `csv::Writer::<W>::from_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::io::BufReader<std::io::Stdin>: std::io::Write` is not satisfied
[INFO] [stdout]    --> src/main.rs:17:26
[INFO] [stdout]     |
[INFO] [stdout] 17  |     let mut csv_writer = csv::Writer::from_writer(buffered_stdin());
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `std::io::BufReader<std::io::Stdin>`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/csv-1.1.3/src/writer.rs:508:22
[INFO] [stdout]     |
[INFO] [stdout] 508 | pub struct Writer<W: io::Write> {
[INFO] [stdout]     |                      --------- required by this bound in `csv::Writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_record` found for struct `csv::Writer<std::io::BufReader<std::io::Stdin>>` in the current scope
[INFO] [stdout]   --> src/main.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |           csv_writer.write_record(&[word, count.to_string()]).unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^ method not found in `csv::Writer<std::io::BufReader<std::io::Stdin>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method `write_record` exists but the following trait bounds were not satisfied:
[INFO] [stdout]            `std::io::BufReader<std::io::Stdin>: std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wikipedia-word-counter`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "9b0d5119178a7cb68b87c2bbe6a9660ff899e465ff935b6aa0bf25f5a96889ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b0d5119178a7cb68b87c2bbe6a9660ff899e465ff935b6aa0bf25f5a96889ec", kill_on_drop: false }`
[INFO] [stdout] 9b0d5119178a7cb68b87c2bbe6a9660ff899e465ff935b6aa0bf25f5a96889ec