[INFO] updating cached repository FauxFaux/jsonarray2pg
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/FauxFaux/jsonarray2pg
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/FauxFaux/jsonarray2pg" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/FauxFaux/jsonarray2pg"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/FauxFaux/jsonarray2pg'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/FauxFaux/jsonarray2pg" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/FauxFaux/jsonarray2pg"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/FauxFaux/jsonarray2pg'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 638a02d20cf26e7c6c5415eec6f31c7e692d4e08
[INFO] sha for GitHub repo FauxFaux/jsonarray2pg: 638a02d20cf26e7c6c5415eec6f31c7e692d4e08
[INFO] validating manifest of FauxFaux/jsonarray2pg on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of FauxFaux/jsonarray2pg on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing FauxFaux/jsonarray2pg
[INFO] finished frobbing FauxFaux/jsonarray2pg
[INFO] frobbed toml for FauxFaux/jsonarray2pg written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/FauxFaux/jsonarray2pg/Cargo.toml
[INFO] started frobbing FauxFaux/jsonarray2pg
[INFO] finished frobbing FauxFaux/jsonarray2pg
[INFO] frobbed toml for FauxFaux/jsonarray2pg written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/FauxFaux/jsonarray2pg/Cargo.toml
[INFO] crate FauxFaux/jsonarray2pg has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing FauxFaux/jsonarray2pg against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/FauxFaux/jsonarray2pg:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 7cc871313a06a15fd3e55094a71c8d428435601eae71725e6fc821a6286efabe
[INFO] running `"docker" "start" "-a" "7cc871313a06a15fd3e55094a71c8d428435601eae71725e6fc821a6286efabe"`
[INFO] [stderr]    Compiling postgres-shared v0.2.0
[INFO] [stderr]    Compiling postgres v0.14.0
[INFO] [stderr]    Compiling jsonarray2pg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/json.rs:94:40
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn read_string<T: Iterator<Item = u8>>(mut iter: &mut T,
[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/json.rs:95:40
[INFO] [stderr]    |
[INFO] [stderr] 95 |                                        mut buf: &mut Vec<u8>)
[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/json.rs:116:37
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn read_num<T: Iterator<Item = u8>>(mut iter: &mut Peekable<T>,
[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/json.rs:117:37
[INFO] [stderr]     |
[INFO] [stderr] 117 |                                     mut buf: &mut Vec<u8>)
[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/json.rs:160:46
[INFO] [stderr]     |
[INFO] [stderr] 160 | pub fn parse_array_from_file<T: io::Read, F>(mut from: &mut T,
[INFO] [stderr]     |                                              ----^^^^
[INFO] [stderr]     |                                              |
[INFO] [stderr]     |                                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `"docker" "inspect" "7cc871313a06a15fd3e55094a71c8d428435601eae71725e6fc821a6286efabe"`
[INFO] running `"docker" "rm" "-f" "7cc871313a06a15fd3e55094a71c8d428435601eae71725e6fc821a6286efabe"`
[INFO] [stdout] 7cc871313a06a15fd3e55094a71c8d428435601eae71725e6fc821a6286efabe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/FauxFaux/jsonarray2pg:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 557b6dd0eb6e7eb5242c702be3b2ec36a7487af3bd3f26dc090d04c6ee17f24f
[INFO] running `"docker" "start" "-a" "557b6dd0eb6e7eb5242c702be3b2ec36a7487af3bd3f26dc090d04c6ee17f24f"`
[INFO] [stderr]    Compiling jsonarray2pg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/json.rs:94:40
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn read_string<T: Iterator<Item = u8>>(mut iter: &mut T,
[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/json.rs:95:40
[INFO] [stderr]    |
[INFO] [stderr] 95 |                                        mut buf: &mut Vec<u8>)
[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/json.rs:116:37
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn read_num<T: Iterator<Item = u8>>(mut iter: &mut Peekable<T>,
[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/json.rs:117:37
[INFO] [stderr]     |
[INFO] [stderr] 117 |                                     mut buf: &mut Vec<u8>)
[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/json.rs:160:46
[INFO] [stderr]     |
[INFO] [stderr] 160 | pub fn parse_array_from_file<T: io::Read, F>(mut from: &mut T,
[INFO] [stderr]     |                                              ----^^^^
[INFO] [stderr]     |                                              |
[INFO] [stderr]     |                                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "557b6dd0eb6e7eb5242c702be3b2ec36a7487af3bd3f26dc090d04c6ee17f24f"`
[INFO] running `"docker" "rm" "-f" "557b6dd0eb6e7eb5242c702be3b2ec36a7487af3bd3f26dc090d04c6ee17f24f"`
[INFO] [stdout] 557b6dd0eb6e7eb5242c702be3b2ec36a7487af3bd3f26dc090d04c6ee17f24f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/FauxFaux/jsonarray2pg:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] e157ce32f05753266c6782c82f3de9de2b85fc7905aa664058e70709e7b9be01
[INFO] running `"docker" "start" "-a" "e157ce32f05753266c6782c82f3de9de2b85fc7905aa664058e70709e7b9be01"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/jsonarray2pg-3dcc195dc50e6ac4
[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" "e157ce32f05753266c6782c82f3de9de2b85fc7905aa664058e70709e7b9be01"`
[INFO] running `"docker" "rm" "-f" "e157ce32f05753266c6782c82f3de9de2b85fc7905aa664058e70709e7b9be01"`
[INFO] [stdout] e157ce32f05753266c6782c82f3de9de2b85fc7905aa664058e70709e7b9be01