[INFO] updating cached repository Vurich/sexpress
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Vurich/sexpress
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Vurich/sexpress" "work/ex/beta-1.38-1/sources/1.37.0/gh/Vurich/sexpress"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Vurich/sexpress'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Vurich/sexpress" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vurich/sexpress"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vurich/sexpress'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ce998ca0b7f5d4a7f02f800612cd2b72f26d4a14
[INFO] sha for GitHub repo Vurich/sexpress: ce998ca0b7f5d4a7f02f800612cd2b72f26d4a14
[INFO] validating manifest of Vurich/sexpress 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 Vurich/sexpress 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 Vurich/sexpress
[INFO] finished frobbing Vurich/sexpress
[INFO] frobbed toml for Vurich/sexpress written to work/ex/beta-1.38-1/sources/1.37.0/gh/Vurich/sexpress/Cargo.toml
[INFO] started frobbing Vurich/sexpress
[INFO] finished frobbing Vurich/sexpress
[INFO] frobbed toml for Vurich/sexpress written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vurich/sexpress/Cargo.toml
[INFO] crate Vurich/sexpress 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 Vurich/sexpress 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Vurich/sexpress:/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] 77581cc79554af6a7eef53663bc4cbb2ffc5678116bb2ad534cbb6bdbd39f880
[INFO] running `"docker" "start" "-a" "77581cc79554af6a7eef53663bc4cbb2ffc5678116bb2ad534cbb6bdbd39f880"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling toolshed v0.4.0 (https://github.com/Vurich/toolshed.git?branch=set-tools#c6f16dbe)
[INFO] [stderr]    Compiling sexpress v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:418:21
[INFO] [stderr]     |
[INFO] [stderr] 418 |                 let mut without_backslashes = arena.require(bytes.len());
[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 1.51s
[INFO] running `"docker" "inspect" "77581cc79554af6a7eef53663bc4cbb2ffc5678116bb2ad534cbb6bdbd39f880"`
[INFO] running `"docker" "rm" "-f" "77581cc79554af6a7eef53663bc4cbb2ffc5678116bb2ad534cbb6bdbd39f880"`
[INFO] [stdout] 77581cc79554af6a7eef53663bc4cbb2ffc5678116bb2ad534cbb6bdbd39f880
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Vurich/sexpress:/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] 1ef272c127613bb6a86e83c44a3ab8af2c6009ae6d89dfa870506ea75d92e2da
[INFO] running `"docker" "start" "-a" "1ef272c127613bb6a86e83c44a3ab8af2c6009ae6d89dfa870506ea75d92e2da"`
[INFO] [stderr]    Compiling memmap v0.6.1
[INFO] [stderr]    Compiling sexpress v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:418:21
[INFO] [stderr]     |
[INFO] [stderr] 418 |                 let mut without_backslashes = arena.require(bytes.len());
[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 2.44s
[INFO] running `"docker" "inspect" "1ef272c127613bb6a86e83c44a3ab8af2c6009ae6d89dfa870506ea75d92e2da"`
[INFO] running `"docker" "rm" "-f" "1ef272c127613bb6a86e83c44a3ab8af2c6009ae6d89dfa870506ea75d92e2da"`
[INFO] [stdout] 1ef272c127613bb6a86e83c44a3ab8af2c6009ae6d89dfa870506ea75d92e2da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Vurich/sexpress:/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] 122b0ecabf699a781a62eee8a5c7e0bcbbee0905f189c1778fb4c4d58c6672a3
[INFO] running `"docker" "start" "-a" "122b0ecabf699a781a62eee8a5c7e0bcbbee0905f189c1778fb4c4d58c6672a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sexpress-9afd4e082e2c086c
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::parses_bool ... ok
[INFO] [stdout] test tests::displays_correctly ... ok
[INFO] [stdout] test tests::parses_string ... ok
[INFO] [stdout] test tests::parses_numbers ... ok
[INFO] [stdout] test tests::parses_everything ... ok
[INFO] [stdout] test tests::parses_ident ... ok
[INFO] [stdout] test tests::parses_idents ... ok
[INFO] [stdout] test tests::parses_ident_start ... ok
[INFO] [stdout] test tests::parses_files ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sexpress
[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" "122b0ecabf699a781a62eee8a5c7e0bcbbee0905f189c1778fb4c4d58c6672a3"`
[INFO] running `"docker" "rm" "-f" "122b0ecabf699a781a62eee8a5c7e0bcbbee0905f189c1778fb4c4d58c6672a3"`
[INFO] [stdout] 122b0ecabf699a781a62eee8a5c7e0bcbbee0905f189c1778fb4c4d58c6672a3