[INFO] crate playlist-decoder 0.7.0 is already in cache
[INFO] extracting crate playlist-decoder 0.7.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/playlist-decoder/0.7.0
[INFO] extracting crate playlist-decoder 0.7.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/playlist-decoder/0.7.0
[INFO] validating manifest of playlist-decoder-0.7.0 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 playlist-decoder-0.7.0 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 playlist-decoder-0.7.0
[INFO] finished frobbing playlist-decoder-0.7.0
[INFO] frobbed toml for playlist-decoder-0.7.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/playlist-decoder/0.7.0/Cargo.toml
[INFO] started frobbing playlist-decoder-0.7.0
[INFO] finished frobbing playlist-decoder-0.7.0
[INFO] frobbed toml for playlist-decoder-0.7.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/playlist-decoder/0.7.0/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 playlist-decoder-0.7.0 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-7/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/playlist-decoder/0.7.0:/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] 72183091a2d8562becc346ce53b84f161737c2176eae39412d97495c79cbe2a1
[INFO] running `"docker" "start" "-a" "72183091a2d8562becc346ce53b84f161737c2176eae39412d97495c79cbe2a1"`
[INFO] [stderr]    Compiling quick-xml v0.12.4
[INFO] [stderr]    Compiling playlist-decoder v0.7.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/check.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 |             let mut f = File::open(filename).expect("file not found");
[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/bin/check.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 |             let mut contents = String::new();
[INFO] [stderr]    |                 ----^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.15s
[INFO] running `"docker" "inspect" "72183091a2d8562becc346ce53b84f161737c2176eae39412d97495c79cbe2a1"`
[INFO] running `"docker" "rm" "-f" "72183091a2d8562becc346ce53b84f161737c2176eae39412d97495c79cbe2a1"`
[INFO] [stdout] 72183091a2d8562becc346ce53b84f161737c2176eae39412d97495c79cbe2a1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/playlist-decoder/0.7.0:/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] 79168f511161090b7f5976edbad6855499eb7529a8d41bba3d76fb87650d8ae0
[INFO] running `"docker" "start" "-a" "79168f511161090b7f5976edbad6855499eb7529a8d41bba3d76fb87650d8ae0"`
[INFO] [stderr]    Compiling playlist-decoder v0.7.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/check.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 |             let mut f = File::open(filename).expect("file not found");
[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/bin/check.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 |             let mut contents = String::new();
[INFO] [stderr]    |                 ----^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "79168f511161090b7f5976edbad6855499eb7529a8d41bba3d76fb87650d8ae0"`
[INFO] running `"docker" "rm" "-f" "79168f511161090b7f5976edbad6855499eb7529a8d41bba3d76fb87650d8ae0"`
[INFO] [stdout] 79168f511161090b7f5976edbad6855499eb7529a8d41bba3d76fb87650d8ae0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/playlist-decoder/0.7.0:/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] 7a41d73ca0e3bee89bae0598c08f9936cb01df5f275da968f3ac8c1c92621edc
[INFO] running `"docker" "start" "-a" "7a41d73ca0e3bee89bae0598c08f9936cb01df5f275da968f3ac8c1c92621edc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playlist_decoder-de4a497f95c5f040
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/check-94e2be931a1a3644
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::pls3 ... ok
[INFO] [stdout] test tests::pls2 ... ok
[INFO] [stdout] test tests::pls ... ok
[INFO] [stdout] test tests::m3u ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests playlist-decoder
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - decode (line 16) ... 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" "7a41d73ca0e3bee89bae0598c08f9936cb01df5f275da968f3ac8c1c92621edc"`
[INFO] running `"docker" "rm" "-f" "7a41d73ca0e3bee89bae0598c08f9936cb01df5f275da968f3ac8c1c92621edc"`
[INFO] [stdout] 7a41d73ca0e3bee89bae0598c08f9936cb01df5f275da968f3ac8c1c92621edc