[INFO] updating cached repository CallumJHays/rust-ann
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CallumJHays/rust-ann
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CallumJHays/rust-ann" "work/ex/beta-1.38-1/sources/1.37.0/gh/CallumJHays/rust-ann"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/CallumJHays/rust-ann'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CallumJHays/rust-ann" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CallumJHays/rust-ann"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CallumJHays/rust-ann'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 093be3e9ebe0340b22d2a36404d63d2bece115aa
[INFO] sha for GitHub repo CallumJHays/rust-ann: 093be3e9ebe0340b22d2a36404d63d2bece115aa
[INFO] validating manifest of CallumJHays/rust-ann 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 CallumJHays/rust-ann 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 CallumJHays/rust-ann
[INFO] finished frobbing CallumJHays/rust-ann
[INFO] frobbed toml for CallumJHays/rust-ann written to work/ex/beta-1.38-1/sources/1.37.0/gh/CallumJHays/rust-ann/Cargo.toml
[INFO] started frobbing CallumJHays/rust-ann
[INFO] finished frobbing CallumJHays/rust-ann
[INFO] frobbed toml for CallumJHays/rust-ann written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CallumJHays/rust-ann/Cargo.toml
[INFO] crate CallumJHays/rust-ann 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] [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 CallumJHays/rust-ann 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/gh/CallumJHays/rust-ann:/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] df45445e16fc3979f2323ba08d6e022dc87f000cb9dd87a33a77e3ae52a2f483
[INFO] running `"docker" "start" "-a" "df45445e16fc3979f2323ba08d6e022dc87f000cb9dd87a33a77e3ae52a2f483"`
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling pretty_env_logger v0.1.0
[INFO] [stderr]    Compiling linear_regression v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/network/layer/mod.rs:12:24
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub activator: Box<Activator>,
[INFO] [stderr]    |                        ^^^^^^^^^ help: use `dyn`: `dyn Activator`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/network/layer/mod.rs:33:31
[INFO] [stderr]    |
[INFO] [stderr] 33 |                activator: Box<Activator>)
[INFO] [stderr]    |                               ^^^^^^^^^ help: use `dyn`: `dyn Activator`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/network/mod.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 |     activator: Box<Activator>,
[INFO] [stderr]    |                    ^^^^^^^^^ help: use `dyn`: `dyn Activator`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.95s
[INFO] running `"docker" "inspect" "df45445e16fc3979f2323ba08d6e022dc87f000cb9dd87a33a77e3ae52a2f483"`
[INFO] running `"docker" "rm" "-f" "df45445e16fc3979f2323ba08d6e022dc87f000cb9dd87a33a77e3ae52a2f483"`
[INFO] [stdout] df45445e16fc3979f2323ba08d6e022dc87f000cb9dd87a33a77e3ae52a2f483
[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/gh/CallumJHays/rust-ann:/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] 4c55d69c2d80e9dc40ec8f84cf86a5605a96f9b8c0c489c355ba6c9162bd3ab7
[INFO] running `"docker" "start" "-a" "4c55d69c2d80e9dc40ec8f84cf86a5605a96f9b8c0c489c355ba6c9162bd3ab7"`
[INFO] [stderr]    Compiling linear_regression v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/network/layer/mod.rs:12:24
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub activator: Box<Activator>,
[INFO] [stderr]    |                        ^^^^^^^^^ help: use `dyn`: `dyn Activator`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/network/layer/mod.rs:33:31
[INFO] [stderr]    |
[INFO] [stderr] 33 |                activator: Box<Activator>)
[INFO] [stderr]    |                               ^^^^^^^^^ help: use `dyn`: `dyn Activator`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/network/mod.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 |     activator: Box<Activator>,
[INFO] [stderr]    |                    ^^^^^^^^^ help: use `dyn`: `dyn Activator`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "4c55d69c2d80e9dc40ec8f84cf86a5605a96f9b8c0c489c355ba6c9162bd3ab7"`
[INFO] running `"docker" "rm" "-f" "4c55d69c2d80e9dc40ec8f84cf86a5605a96f9b8c0c489c355ba6c9162bd3ab7"`
[INFO] [stdout] 4c55d69c2d80e9dc40ec8f84cf86a5605a96f9b8c0c489c355ba6c9162bd3ab7
[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/gh/CallumJHays/rust-ann:/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] 2059594e61db2a43a639789f495a9ce59c3d889a19ec72844f6ff9892af36735
[INFO] running `"docker" "start" "-a" "2059594e61db2a43a639789f495a9ce59c3d889a19ec72844f6ff9892af36735"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linear_regression-689a091a887b6ad4
[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" "2059594e61db2a43a639789f495a9ce59c3d889a19ec72844f6ff9892af36735"`
[INFO] running `"docker" "rm" "-f" "2059594e61db2a43a639789f495a9ce59c3d889a19ec72844f6ff9892af36735"`
[INFO] [stdout] 2059594e61db2a43a639789f495a9ce59c3d889a19ec72844f6ff9892af36735