[INFO] updating cached repository Berteun/rust-toy-list
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Berteun/rust-toy-list
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Berteun/rust-toy-list" "work/ex/beta-1.38-1/sources/1.37.0/gh/Berteun/rust-toy-list"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Berteun/rust-toy-list'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Berteun/rust-toy-list" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Berteun/rust-toy-list"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Berteun/rust-toy-list'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8c02b9732a93b89c6528d053069dafac7f7b6bfe
[INFO] sha for GitHub repo Berteun/rust-toy-list: 8c02b9732a93b89c6528d053069dafac7f7b6bfe
[INFO] validating manifest of Berteun/rust-toy-list 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 Berteun/rust-toy-list 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 Berteun/rust-toy-list
[INFO] finished frobbing Berteun/rust-toy-list
[INFO] frobbed toml for Berteun/rust-toy-list written to work/ex/beta-1.38-1/sources/1.37.0/gh/Berteun/rust-toy-list/Cargo.toml
[INFO] started frobbing Berteun/rust-toy-list
[INFO] finished frobbing Berteun/rust-toy-list
[INFO] frobbed toml for Berteun/rust-toy-list written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Berteun/rust-toy-list/Cargo.toml
[INFO] crate Berteun/rust-toy-list 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 Berteun/rust-toy-list 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Berteun/rust-toy-list:/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] 12f0a3d398f5623d0aa1507bd4f27524602fd8f3248844933ec6355b646e837c
[INFO] running `"docker" "start" "-a" "12f0a3d398f5623d0aa1507bd4f27524602fd8f3248844933ec6355b646e837c"`
[INFO] [stderr]    Compiling reverse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
[INFO] [stderr]   --> src/list/mod.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 | /     pub fn first(&self) -> Option<&Node<T>>
[INFO] [stderr] 66 | |     {
[INFO] [stderr] 67 | |         match self.head
[INFO] [stderr] 68 | |         {
[INFO] [stderr] ...  |
[INFO] [stderr] 71 | |         }
[INFO] [stderr] 72 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(private_in_public)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
[INFO] [stderr]   --> src/list/mod.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 | /     pub fn last(&self) -> Option<&Node<T>>
[INFO] [stderr] 75 | |     {
[INFO] [stderr] 76 | |         match self.head {
[INFO] [stderr] 77 | |             Some(ref boxed_node) => Some(boxed_node.last()),
[INFO] [stderr] 78 | |             None => None
[INFO] [stderr] 79 | |         }
[INFO] [stderr] 80 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "12f0a3d398f5623d0aa1507bd4f27524602fd8f3248844933ec6355b646e837c"`
[INFO] running `"docker" "rm" "-f" "12f0a3d398f5623d0aa1507bd4f27524602fd8f3248844933ec6355b646e837c"`
[INFO] [stdout] 12f0a3d398f5623d0aa1507bd4f27524602fd8f3248844933ec6355b646e837c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Berteun/rust-toy-list:/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] d92bf0a389feebe9762785f5230a215372d2aa540a25f56fcdfd77965cc2d35b
[INFO] running `"docker" "start" "-a" "d92bf0a389feebe9762785f5230a215372d2aa540a25f56fcdfd77965cc2d35b"`
[INFO] [stderr]    Compiling reverse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
[INFO] [stderr]   --> src/list/mod.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 | /     pub fn first(&self) -> Option<&Node<T>>
[INFO] [stderr] 66 | |     {
[INFO] [stderr] 67 | |         match self.head
[INFO] [stderr] 68 | |         {
[INFO] [stderr] ...  |
[INFO] [stderr] 71 | |         }
[INFO] [stderr] 72 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(private_in_public)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
[INFO] [stderr]   --> src/list/mod.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 | /     pub fn last(&self) -> Option<&Node<T>>
[INFO] [stderr] 75 | |     {
[INFO] [stderr] 76 | |         match self.head {
[INFO] [stderr] 77 | |             Some(ref boxed_node) => Some(boxed_node.last()),
[INFO] [stderr] 78 | |             None => None
[INFO] [stderr] 79 | |         }
[INFO] [stderr] 80 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "d92bf0a389feebe9762785f5230a215372d2aa540a25f56fcdfd77965cc2d35b"`
[INFO] running `"docker" "rm" "-f" "d92bf0a389feebe9762785f5230a215372d2aa540a25f56fcdfd77965cc2d35b"`
[INFO] [stdout] d92bf0a389feebe9762785f5230a215372d2aa540a25f56fcdfd77965cc2d35b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Berteun/rust-toy-list:/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] c65e16cc5c0de0698c42c85a8988c92938fc3fa6c84533e393b807107e296bf6
[INFO] running `"docker" "start" "-a" "c65e16cc5c0de0698c42c85a8988c92938fc3fa6c84533e393b807107e296bf6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/reverse-8a8f9d0e1fe2d44c
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test list::create_node ... ok
[INFO] [stdout] test list::create_node_and_prepend ... ok
[INFO] [stdout] test list::test_drop_singleton ... ok
[INFO] [stdout] test list::test_drop ... ok
[INFO] [stdout] test list::test_last ... ok
[INFO] [stdout] test list::test_last_prepend ... ok
[INFO] [stdout] test list::test_last_append_prepend ... ok
[INFO] [stdout] test list::test_last_singleton ... ok
[INFO] [stdout] test list::test_length ... ok
[INFO] [stdout] test list::test_reverse_singleton ... ok
[INFO] [stdout] test list::test_reverse_longer ... ok
[INFO] [stdout] test list::create_node_and_append ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c65e16cc5c0de0698c42c85a8988c92938fc3fa6c84533e393b807107e296bf6"`
[INFO] running `"docker" "rm" "-f" "c65e16cc5c0de0698c42c85a8988c92938fc3fa6c84533e393b807107e296bf6"`
[INFO] [stdout] c65e16cc5c0de0698c42c85a8988c92938fc3fa6c84533e393b807107e296bf6