[INFO] updating cached repository https://github.com/mdietrichstein/ir-search-engine-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 53928eec92a4dbbdc0ec6a2c560c368ba596bf8e
[INFO] checking mdietrichstein/ir-search-engine-rust against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdietrichstein%2Fir-search-engine-rust" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mdietrichstein/ir-search-engine-rust on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mdietrichstein/ir-search-engine-rust
[INFO] finished tweaking git repo https://github.com/mdietrichstein/ir-search-engine-rust
[INFO] tweaked toml for git repo https://github.com/mdietrichstein/ir-search-engine-rust written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mdietrichstein/ir-search-engine-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6a3328e822b7a248d1d523bc42241bde2cce1d4644436ce9795fa4e8852d0fc7
[INFO] running `"docker" "start" "-a" "6a3328e822b7a248d1d523bc42241bde2cce1d4644436ce9795fa4e8852d0fc7"`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling encoding_rs v0.8.15
[INFO] [stderr]     Checking farmhash v1.1.5
[INFO] [stderr]     Checking rust-stemmers v1.1.0
[INFO] [stderr]     Checking wordnet_stemmer v0.1.1
[INFO] [stderr]     Checking memchr v2.1.3
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking encoding_rs_io v0.1.4
[INFO] [stderr]    Compiling caseless v0.2.1
[INFO] [stderr]     Checking text_retrieval v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/preprocessing/mod.rs:36:29
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub type Preprocessor = Box<Fn(&[String]) -> Vec<String>>;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[String]) -> Vec<String>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tokenization/mod.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 | ) -> Box<Iterator<Item = Token> + 'a> {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/preprocessing/mod.rs:36:29
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub type Preprocessor = Box<Fn(&[String]) -> Vec<String>>;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[String]) -> Vec<String>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tokenization/mod.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 | ) -> Box<Iterator<Item = Token> + 'a> {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token> + 'a`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.13s
[INFO] running `"docker" "inspect" "6a3328e822b7a248d1d523bc42241bde2cce1d4644436ce9795fa4e8852d0fc7"`
[INFO] running `"docker" "rm" "-f" "6a3328e822b7a248d1d523bc42241bde2cce1d4644436ce9795fa4e8852d0fc7"`
[INFO] [stdout] 6a3328e822b7a248d1d523bc42241bde2cce1d4644436ce9795fa4e8852d0fc7