[INFO] crate caribon 0.8.1 is already in cache
[INFO] extracting crate caribon 0.8.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/caribon/0.8.1
[INFO] extracting crate caribon 0.8.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/caribon/0.8.1
[INFO] validating manifest of caribon-0.8.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of caribon-0.8.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing caribon-0.8.1
[INFO] finished frobbing caribon-0.8.1
[INFO] frobbed toml for caribon-0.8.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/caribon/0.8.1/Cargo.toml
[INFO] started frobbing caribon-0.8.1
[INFO] finished frobbing caribon-0.8.1
[INFO] frobbed toml for caribon-0.8.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/caribon/0.8.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing caribon-0.8.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/caribon/0.8.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 88b0c83ea687775aaba5dcf5f5f80114721b74f4934f30994483276e5743bcdb
[INFO] running `"docker" "start" "-a" "88b0c83ea687775aaba5dcf5f5f80114721b74f4934f30994483276e5743bcdb"`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/src/bin/config.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling stemmer v0.3.2
[INFO] [stderr]    Compiling caribon v0.8.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib/parser.rs:507:13
[INFO] [stderr]     |
[INFO] [stderr] 507 |         let mut vec = ast.get_body_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib/parser.rs:624:13
[INFO] [stderr]     |
[INFO] [stderr] 624 |         let mut vec = ast.get_body_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib/parser.rs:663:13
[INFO] [stderr]     |
[INFO] [stderr] 663 |         let mut res = words;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.32s
[INFO] running `"docker" "inspect" "88b0c83ea687775aaba5dcf5f5f80114721b74f4934f30994483276e5743bcdb"`
[INFO] running `"docker" "rm" "-f" "88b0c83ea687775aaba5dcf5f5f80114721b74f4934f30994483276e5743bcdb"`
[INFO] [stdout] 88b0c83ea687775aaba5dcf5f5f80114721b74f4934f30994483276e5743bcdb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/caribon/0.8.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9574881fd4b0ad4bfdbad8cd88507c3b2185bc922232ecbae8b410148d3798e4
[INFO] running `"docker" "start" "-a" "9574881fd4b0ad4bfdbad8cd88507c3b2185bc922232ecbae8b410148d3798e4"`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/src/bin/config.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling caribon v0.8.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib/parser.rs:507:13
[INFO] [stderr]     |
[INFO] [stderr] 507 |         let mut vec = ast.get_body_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib/parser.rs:624:13
[INFO] [stderr]     |
[INFO] [stderr] 624 |         let mut vec = ast.get_body_mut();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib/parser.rs:663:13
[INFO] [stderr]     |
[INFO] [stderr] 663 |         let mut res = words;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "9574881fd4b0ad4bfdbad8cd88507c3b2185bc922232ecbae8b410148d3798e4"`
[INFO] running `"docker" "rm" "-f" "9574881fd4b0ad4bfdbad8cd88507c3b2185bc922232ecbae8b410148d3798e4"`
[INFO] [stdout] 9574881fd4b0ad4bfdbad8cd88507c3b2185bc922232ecbae8b410148d3798e4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/caribon/0.8.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 678105082a5bab9ea475ed6fc4377535ef70bcb89dc6539eb60b4921c372aaed
[INFO] running `"docker" "start" "-a" "678105082a5bab9ea475ed6fc4377535ef70bcb89dc6539eb60b4921c372aaed"`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/src/bin/config.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/caribon-2682a931c937d986
[INFO] [stderr]      Running /opt/crater/target/debug/deps/caribon-d3243e148eab7fd8
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests caribon
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/lib/lib.rs -  (line 61) ... ignored
[INFO] [stdout] test src/lib/lib.rs -  (line 70) ... ignored
[INFO] [stdout] test src/lib/lib.rs -  (line 76) ... ignored
[INFO] [stdout] test src/lib/lib.rs -  (line 89) ... ignored
[INFO] [stdout] test src/lib/lib.rs -  (line 95) ... ignored
[INFO] [stdout] test src/lib/lib.rs -  (line 50) ... ok
[INFO] [stdout] test src/lib/parser.rs - parser::Parser::new (line 131) ... ok
[INFO] [stdout] test src/lib/parser.rs - parser::Parser::new (line 126) ... ok
[INFO] [stdout] test src/lib/parser.rs - parser::Parser::new (line 121) ... ok
[INFO] [stdout] test src/lib/lib.rs -  (line 42) ... ok
[INFO] [stdout] test src/lib/parser.rs - parser::Parser::detect_local (line 499) ... ok
[INFO] [stdout] test src/lib/parser.rs - parser::Parser::get_ignored_from_string (line 88) ... ok
[INFO] [stdout] test src/lib/lib.rs -  (line 26) ... ok
[INFO] [stdout] test src/lib/parser.rs - parser::Parser::with_max_distance (line 200) ... ok
[INFO] [stdout] test src/lib/parser.rs - parser::Parser::with_max_distance (line 209) ... ok
[INFO] [stdout] test src/lib/parser.rs - parser::Parser::with_fuzzy (line 177) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 5 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "678105082a5bab9ea475ed6fc4377535ef70bcb89dc6539eb60b4921c372aaed"`
[INFO] running `"docker" "rm" "-f" "678105082a5bab9ea475ed6fc4377535ef70bcb89dc6539eb60b4921c372aaed"`
[INFO] [stdout] 678105082a5bab9ea475ed6fc4377535ef70bcb89dc6539eb60b4921c372aaed