[INFO] updating cached repository danmarcab/ariadnes_string
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/danmarcab/ariadnes_string
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/danmarcab/ariadnes_string" "work/ex/beta-1.38-1/sources/1.37.0/gh/danmarcab/ariadnes_string"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/danmarcab/ariadnes_string'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/danmarcab/ariadnes_string" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/danmarcab/ariadnes_string"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/danmarcab/ariadnes_string'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6e376c266605118a88209ab7376e1d5dcdd7b999
[INFO] sha for GitHub repo danmarcab/ariadnes_string: 6e376c266605118a88209ab7376e1d5dcdd7b999
[INFO] validating manifest of danmarcab/ariadnes_string 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 danmarcab/ariadnes_string 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 danmarcab/ariadnes_string
[INFO] finished frobbing danmarcab/ariadnes_string
[INFO] frobbed toml for danmarcab/ariadnes_string written to work/ex/beta-1.38-1/sources/1.37.0/gh/danmarcab/ariadnes_string/Cargo.toml
[INFO] started frobbing danmarcab/ariadnes_string
[INFO] finished frobbing danmarcab/ariadnes_string
[INFO] frobbed toml for danmarcab/ariadnes_string written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/danmarcab/ariadnes_string/Cargo.toml
[INFO] crate danmarcab/ariadnes_string 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing danmarcab/ariadnes_string 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/danmarcab/ariadnes_string:/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] 701382023fc8b1e5e6c1a25b11c29947e96a40e66b19493333d7b24cd4a62e58
[INFO] running `"docker" "start" "-a" "701382023fc8b1e5e6c1a25b11c29947e96a40e66b19493333d7b24cd4a62e58"`
[INFO] [stderr]    Compiling ariadmes_string v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:31:14
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn intersect(a: Line, b: Line) -> bool {
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:31:23
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn intersect(a: Line, b: Line) -> bool {
[INFO] [stderr]    |                       ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_point`
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let last_point = path.last().unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_last_point`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | struct Line {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Occupied`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | type Occupied = Vec<Vec<bool>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `intersect`
[INFO] [stderr]   --> src/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn intersect(a: Line, b: Line) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "701382023fc8b1e5e6c1a25b11c29947e96a40e66b19493333d7b24cd4a62e58"`
[INFO] running `"docker" "rm" "-f" "701382023fc8b1e5e6c1a25b11c29947e96a40e66b19493333d7b24cd4a62e58"`
[INFO] [stdout] 701382023fc8b1e5e6c1a25b11c29947e96a40e66b19493333d7b24cd4a62e58
[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/danmarcab/ariadnes_string:/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] c705fa939bd34971beea6a8c1ca33af7f248bb4aabe066c9c32eff466a51450f
[INFO] running `"docker" "start" "-a" "c705fa939bd34971beea6a8c1ca33af7f248bb4aabe066c9c32eff466a51450f"`
[INFO] [stderr]    Compiling ariadmes_string v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:31:14
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn intersect(a: Line, b: Line) -> bool {
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:31:23
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn intersect(a: Line, b: Line) -> bool {
[INFO] [stderr]    |                       ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_point`
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let last_point = path.last().unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_last_point`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | struct Line {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Occupied`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | type Occupied = Vec<Vec<bool>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `intersect`
[INFO] [stderr]   --> src/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn intersect(a: Line, b: Line) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "c705fa939bd34971beea6a8c1ca33af7f248bb4aabe066c9c32eff466a51450f"`
[INFO] running `"docker" "rm" "-f" "c705fa939bd34971beea6a8c1ca33af7f248bb4aabe066c9c32eff466a51450f"`
[INFO] [stdout] c705fa939bd34971beea6a8c1ca33af7f248bb4aabe066c9c32eff466a51450f
[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/danmarcab/ariadnes_string:/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] 2e9f739f88710aeee8bf4f2dbf0e8fdb08dd933cf978dcc8595b2c212fbc3f06
[INFO] running `"docker" "start" "-a" "2e9f739f88710aeee8bf4f2dbf0e8fdb08dd933cf978dcc8595b2c212fbc3f06"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ariadmes_string-f6c924b27b8b8770
[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" "2e9f739f88710aeee8bf4f2dbf0e8fdb08dd933cf978dcc8595b2c212fbc3f06"`
[INFO] running `"docker" "rm" "-f" "2e9f739f88710aeee8bf4f2dbf0e8fdb08dd933cf978dcc8595b2c212fbc3f06"`
[INFO] [stdout] 2e9f739f88710aeee8bf4f2dbf0e8fdb08dd933cf978dcc8595b2c212fbc3f06