[INFO] fetching crate literumilo 0.1.0...
[INFO] checking literumilo-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate literumilo 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate literumilo 0.1.0
[INFO] finished tweaking crates.io crate literumilo 0.1.0
[INFO] tweaked toml for crates.io crate literumilo 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate literumilo 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate literumilo 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65e7620ff6e70c7dfeca3b7eac7ad8aab8c52ef4d1e64813d2bc8ee18367cb91
[INFO] running `Command { std: "docker" "start" "-a" "65e7620ff6e70c7dfeca3b7eac7ad8aab8c52ef4d1e64813d2bc8ee18367cb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65e7620ff6e70c7dfeca3b7eac7ad8aab8c52ef4d1e64813d2bc8ee18367cb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65e7620ff6e70c7dfeca3b7eac7ad8aab8c52ef4d1e64813d2bc8ee18367cb91", kill_on_drop: false }`
[INFO] [stdout] 65e7620ff6e70c7dfeca3b7eac7ad8aab8c52ef4d1e64813d2bc8ee18367cb91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec5035af6cfab01b517ad647d4d454e04fccfa243143fce6a1ec816ce854490b
[INFO] running `Command { std: "docker" "start" "-a" "ec5035af6cfab01b517ad647d4d454e04fccfa243143fce6a1ec816ce854490b", kill_on_drop: false }`
[INFO] [stderr]     Checking literumilo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `length`, `capitalization`, and `rarity` are never read
[INFO] [stdout]    --> src/entry.rs:503:9
[INFO] [stdout]     |
[INFO] [stdout] 501 | pub struct Entry {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 502 |     pub word: String,
[INFO] [stdout] 503 |     pub length: usize,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 504 |     pub capitalization: Capitalization,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 511 |     pub rarity: usize,            // 1 is common, 4 is rare
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Entry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `length`, `capitalization`, and `rarity` are never read
[INFO] [stdout]    --> src/entry.rs:503:9
[INFO] [stdout]     |
[INFO] [stdout] 501 | pub struct Entry {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 502 |     pub word: String,
[INFO] [stdout] 503 |     pub length: usize,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 504 |     pub capitalization: Capitalization,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 511 |     pub rarity: usize,            // 1 is common, 4 is rare
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Entry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ending.rs:38:31
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(original_word: &str) -> Option<Ending> {
[INFO] [stdout]    |                               ^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(original_word: &str) -> Option<Ending<'_>> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ending.rs:38:31
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(original_word: &str) -> Option<Ending> {
[INFO] [stdout]    |                               ^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(original_word: &str) -> Option<Ending<'_>> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "ec5035af6cfab01b517ad647d4d454e04fccfa243143fce6a1ec816ce854490b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec5035af6cfab01b517ad647d4d454e04fccfa243143fce6a1ec816ce854490b", kill_on_drop: false }`
[INFO] [stdout] ec5035af6cfab01b517ad647d4d454e04fccfa243143fce6a1ec816ce854490b