[INFO] crate sea-canal 0.3.0 is already in cache
[INFO] extracting crate sea-canal 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/sea-canal/0.3.0
[INFO] extracting crate sea-canal 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sea-canal/0.3.0
[INFO] validating manifest of sea-canal-0.3.0 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 sea-canal-0.3.0 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 sea-canal-0.3.0
[INFO] finished frobbing sea-canal-0.3.0
[INFO] frobbed toml for sea-canal-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/sea-canal/0.3.0/Cargo.toml
[INFO] started frobbing sea-canal-0.3.0
[INFO] finished frobbing sea-canal-0.3.0
[INFO] frobbed toml for sea-canal-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sea-canal/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 sea-canal-0.3.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sea-canal/0.3.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e8293974259586ff9404fa263b6d93ceba1b02b5bb64dadeb47612be79adfb0f
[INFO] running `"docker" "start" "-a" "e8293974259586ff9404fa263b6d93ceba1b02b5bb64dadeb47612be79adfb0f"`
[INFO] [stderr]    Compiling sea-canal v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/pattern.rs:68:19
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn fmt(&self, mut fmt: &mut Formatter) -> Result<(), Error> {
[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/pattern.rs:160:19
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn fmt(&self, mut fmt: &mut Formatter) -> Result<(), Error> {
[INFO] [stderr]     |                   ----^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `"docker" "inspect" "e8293974259586ff9404fa263b6d93ceba1b02b5bb64dadeb47612be79adfb0f"`
[INFO] running `"docker" "rm" "-f" "e8293974259586ff9404fa263b6d93ceba1b02b5bb64dadeb47612be79adfb0f"`
[INFO] [stdout] e8293974259586ff9404fa263b6d93ceba1b02b5bb64dadeb47612be79adfb0f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sea-canal/0.3.0:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1ac2081c2b1d76aada64773588af6146fb61dad2a86246cb4b32de19eef24299
[INFO] running `"docker" "start" "-a" "1ac2081c2b1d76aada64773588af6146fb61dad2a86246cb4b32de19eef24299"`
[INFO] [stderr]    Compiling sea-canal v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/pattern.rs:68:19
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn fmt(&self, mut fmt: &mut Formatter) -> Result<(), Error> {
[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/pattern.rs:160:19
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn fmt(&self, mut fmt: &mut Formatter) -> Result<(), Error> {
[INFO] [stderr]     |                   ----^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "1ac2081c2b1d76aada64773588af6146fb61dad2a86246cb4b32de19eef24299"`
[INFO] running `"docker" "rm" "-f" "1ac2081c2b1d76aada64773588af6146fb61dad2a86246cb4b32de19eef24299"`
[INFO] [stdout] 1ac2081c2b1d76aada64773588af6146fb61dad2a86246cb4b32de19eef24299
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sea-canal/0.3.0:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] a9ceb70a9b23ccdfd1b6db892a0870f8b95f47de7c0ba4b3d9733fd586af635d
[INFO] running `"docker" "start" "-a" "a9ceb70a9b23ccdfd1b6db892a0870f8b95f47de7c0ba4b3d9733fd586af635d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sea_canal-3b8b20961afe9727
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test pattern::tests::fmt_pat ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_plus ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_mult ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_mod ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_minus ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_cube ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_div ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_square ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_square_root ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_const ... ok
[INFO] [stdout] test pattern::tests::fmt_pat_elem_cube_root ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/scnl-86ad5db84736d9eb
[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]      Running /opt/crater/target/debug/deps/lib-8786f413e6fd2305
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test standard::find_patterns ... ok
[INFO] [stdout] test standard::find_patterns_of_length ... ok
[INFO] [stdout] test standard::find_any_pattern_of_length ... ok
[INFO] [stdout] test standard::find_any_pattern ... ok
[INFO] [stdout] test custom::find_any_pattern ... ok
[INFO] [stdout] test meta::meta_find_patterns_of_length ... ok
[INFO] [stdout] test meta::meta_find_any_pattern ... ok
[INFO] [stdout] test meta::mixed_operand_meta_pattern ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sea-canal
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/pattern.rs - pattern::Pattern::extend_each (line 132) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a9ceb70a9b23ccdfd1b6db892a0870f8b95f47de7c0ba4b3d9733fd586af635d"`
[INFO] running `"docker" "rm" "-f" "a9ceb70a9b23ccdfd1b6db892a0870f8b95f47de7c0ba4b3d9733fd586af635d"`
[INFO] [stdout] a9ceb70a9b23ccdfd1b6db892a0870f8b95f47de7c0ba4b3d9733fd586af635d