[INFO] updating cached repository Lispre/so_stupid_search
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Lispre/so_stupid_search
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Lispre/so_stupid_search" "work/ex/beta-1.38-1/sources/1.37.0/gh/Lispre/so_stupid_search"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Lispre/so_stupid_search'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Lispre/so_stupid_search" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lispre/so_stupid_search"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lispre/so_stupid_search'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf0e26ff25adfe750562ec1cab4dacbb4e5ee564
[INFO] sha for GitHub repo Lispre/so_stupid_search: bf0e26ff25adfe750562ec1cab4dacbb4e5ee564
[INFO] validating manifest of Lispre/so_stupid_search on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Lispre/so_stupid_search on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Lispre/so_stupid_search
[INFO] finished frobbing Lispre/so_stupid_search
[INFO] frobbed toml for Lispre/so_stupid_search written to work/ex/beta-1.38-1/sources/1.37.0/gh/Lispre/so_stupid_search/Cargo.toml
[INFO] started frobbing Lispre/so_stupid_search
[INFO] finished frobbing Lispre/so_stupid_search
[INFO] frobbed toml for Lispre/so_stupid_search written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lispre/so_stupid_search/Cargo.toml
[INFO] crate Lispre/so_stupid_search already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Lispre/so_stupid_search against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Lispre/so_stupid_search:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f0e1ac6eb3e5790e372489a2a3937edd2039eabaf38eebddc3e83763659634fd
[INFO] running `"docker" "start" "-a" "f0e1ac6eb3e5790e372489a2a3937edd2039eabaf38eebddc3e83763659634fd"`
[INFO] [stderr]    Compiling sf v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `DirEntry`
[INFO] [stderr]  --> src/main.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fs::{File, DirEntry};
[INFO] [stderr]   |                     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:269:78
[INFO] [stderr]     |
[INFO] [stderr] 269 | fn find_match(root_dir: &Path, file_ext: &String, pattern_str: &String, cb: &Fn(&Path, &String)) -> Vec<PathBuf> {
[INFO] [stderr]     |                                                                              ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Path, &String)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err_obj`
[INFO] [stderr]    --> src/main.rs:293:25
[INFO] [stderr]     |
[INFO] [stderr] 293 |                     Err(err_obj) => ()
[INFO] [stderr]     |                         ^^^^^^^ help: consider prefixing with an underscore: `_err_obj`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `error_obj`
[INFO] [stderr]    --> src/main.rs:297:13
[INFO] [stderr]     |
[INFO] [stderr] 297 |         Err(error_obj) => ()
[INFO] [stderr]     |             ^^^^^^^^^ help: consider prefixing with an underscore: `_error_obj`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:20:17
[INFO] [stderr]    |
[INFO] [stderr] 20 |             let mut content = &buffer[0..readed_size];
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `"docker" "inspect" "f0e1ac6eb3e5790e372489a2a3937edd2039eabaf38eebddc3e83763659634fd"`
[INFO] running `"docker" "rm" "-f" "f0e1ac6eb3e5790e372489a2a3937edd2039eabaf38eebddc3e83763659634fd"`
[INFO] [stdout] f0e1ac6eb3e5790e372489a2a3937edd2039eabaf38eebddc3e83763659634fd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Lispre/so_stupid_search:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 82451502a26fb56a34dd0565534575889ca5a4fb39c5deca6ffae663fc1cfdd7
[INFO] running `"docker" "start" "-a" "82451502a26fb56a34dd0565534575889ca5a4fb39c5deca6ffae663fc1cfdd7"`
[INFO] [stderr]    Compiling sf v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `DirEntry`
[INFO] [stderr]  --> src/main.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fs::{File, DirEntry};
[INFO] [stderr]   |                     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:269:78
[INFO] [stderr]     |
[INFO] [stderr] 269 | fn find_match(root_dir: &Path, file_ext: &String, pattern_str: &String, cb: &Fn(&Path, &String)) -> Vec<PathBuf> {
[INFO] [stderr]     |                                                                              ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Path, &String)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err_obj`
[INFO] [stderr]    --> src/main.rs:293:25
[INFO] [stderr]     |
[INFO] [stderr] 293 |                     Err(err_obj) => ()
[INFO] [stderr]     |                         ^^^^^^^ help: consider prefixing with an underscore: `_err_obj`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `error_obj`
[INFO] [stderr]    --> src/main.rs:297:13
[INFO] [stderr]     |
[INFO] [stderr] 297 |         Err(error_obj) => ()
[INFO] [stderr]     |             ^^^^^^^^^ help: consider prefixing with an underscore: `_error_obj`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:20:17
[INFO] [stderr]    |
[INFO] [stderr] 20 |             let mut content = &buffer[0..readed_size];
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "82451502a26fb56a34dd0565534575889ca5a4fb39c5deca6ffae663fc1cfdd7"`
[INFO] running `"docker" "rm" "-f" "82451502a26fb56a34dd0565534575889ca5a4fb39c5deca6ffae663fc1cfdd7"`
[INFO] [stdout] 82451502a26fb56a34dd0565534575889ca5a4fb39c5deca6ffae663fc1cfdd7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Lispre/so_stupid_search:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 3bcbc0b223af79e03e6c7fd76115e5380cb8eb39b51c6e002058e23a7a42471e
[INFO] running `"docker" "start" "-a" "3bcbc0b223af79e03e6c7fd76115e5380cb8eb39b51c6e002058e23a7a42471e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sf-0673dcf3fbc2172a
[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] running `"docker" "inspect" "3bcbc0b223af79e03e6c7fd76115e5380cb8eb39b51c6e002058e23a7a42471e"`
[INFO] running `"docker" "rm" "-f" "3bcbc0b223af79e03e6c7fd76115e5380cb8eb39b51c6e002058e23a7a42471e"`
[INFO] [stdout] 3bcbc0b223af79e03e6c7fd76115e5380cb8eb39b51c6e002058e23a7a42471e