[INFO] crate illist 0.1.0 is already in cache
[INFO] extracting crate illist 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/illist/0.1.0
[INFO] extracting crate illist 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/illist/0.1.0
[INFO] validating manifest of illist-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of illist-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing illist-0.1.0
[INFO] finished frobbing illist-0.1.0
[INFO] frobbed toml for illist-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/illist/0.1.0/Cargo.toml
[INFO] started frobbing illist-0.1.0
[INFO] finished frobbing illist-0.1.0
[INFO] frobbed toml for illist-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/illist/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing illist-0.1.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/illist/0.1.0:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] b7384ef56bef6273d7c24b6d364a08641a45475564aa5bdabf477e98cd80711c
[INFO] running `"docker" "start" "-a" "b7384ef56bef6273d7c24b6d364a08641a45475564aa5bdabf477e98cd80711c"`
[INFO] [stderr]    Compiling illist v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `empty`
[INFO] [stderr]   --> src/node.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "b7384ef56bef6273d7c24b6d364a08641a45475564aa5bdabf477e98cd80711c"`
[INFO] running `"docker" "rm" "-f" "b7384ef56bef6273d7c24b6d364a08641a45475564aa5bdabf477e98cd80711c"`
[INFO] [stdout] b7384ef56bef6273d7c24b6d364a08641a45475564aa5bdabf477e98cd80711c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/illist/0.1.0:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4c086fcab9e64828204ccb701932f6ee404cba19d5e3e557865cc88db0860ad5
[INFO] running `"docker" "start" "-a" "4c086fcab9e64828204ccb701932f6ee404cba19d5e3e557865cc88db0860ad5"`
[INFO] [stderr]    Compiling illist v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `empty`
[INFO] [stderr]   --> src/node.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "4c086fcab9e64828204ccb701932f6ee404cba19d5e3e557865cc88db0860ad5"`
[INFO] running `"docker" "rm" "-f" "4c086fcab9e64828204ccb701932f6ee404cba19d5e3e557865cc88db0860ad5"`
[INFO] [stdout] 4c086fcab9e64828204ccb701932f6ee404cba19d5e3e557865cc88db0860ad5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/illist/0.1.0:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 52ff767fe9970f1c52cd47eb9d6a96ef3f9af25e06b77ff452c121a610a965dd
[INFO] running `"docker" "start" "-a" "52ff767fe9970f1c52cd47eb9d6a96ef3f9af25e06b77ff452c121a610a965dd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/illist-434f4a759d990aa9
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::push_back ... ok
[INFO] [stdout] test tests::pop ... ok
[INFO] [stdout] test tests::push_pop ... ok
[INFO] [stderr]    Doc-tests illist
[INFO] [stdout] test tests::unordered_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "52ff767fe9970f1c52cd47eb9d6a96ef3f9af25e06b77ff452c121a610a965dd"`
[INFO] running `"docker" "rm" "-f" "52ff767fe9970f1c52cd47eb9d6a96ef3f9af25e06b77ff452c121a610a965dd"`
[INFO] [stdout] 52ff767fe9970f1c52cd47eb9d6a96ef3f9af25e06b77ff452c121a610a965dd