[INFO] updating cached repository https://github.com/CallumJHays/rust-ann
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 093be3e9ebe0340b22d2a36404d63d2bece115aa
[INFO] testing CallumJHays/rust-ann against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FCallumJHays%2Frust-ann" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CallumJHays/rust-ann on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/CallumJHays/rust-ann
[INFO] finished tweaking git repo https://github.com/CallumJHays/rust-ann
[INFO] tweaked toml for git repo https://github.com/CallumJHays/rust-ann written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/CallumJHays/rust-ann already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] cd0fed042ab7f5d33237b5b08c7a9c00da0881eac7f51bc774231466f7eeeb0a
[INFO] running `"docker" "start" "-a" "cd0fed042ab7f5d33237b5b08c7a9c00da0881eac7f51bc774231466f7eeeb0a"`
[INFO] [stderr]    Compiling memchr v0.1.11
[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/rustwide/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 7.76s
[INFO] running `"docker" "inspect" "cd0fed042ab7f5d33237b5b08c7a9c00da0881eac7f51bc774231466f7eeeb0a"`
[INFO] running `"docker" "rm" "-f" "cd0fed042ab7f5d33237b5b08c7a9c00da0881eac7f51bc774231466f7eeeb0a"`
[INFO] [stdout] cd0fed042ab7f5d33237b5b08c7a9c00da0881eac7f51bc774231466f7eeeb0a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] d96b0f3725d9e96e5942aa84a706fdbe490231551365c125f4ab4822fe6b5a41
[INFO] running `"docker" "start" "-a" "d96b0f3725d9e96e5942aa84a706fdbe490231551365c125f4ab4822fe6b5a41"`
[INFO] [stderr]    Compiling linear_regression v0.1.0 (/opt/rustwide/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 1.40s
[INFO] running `"docker" "inspect" "d96b0f3725d9e96e5942aa84a706fdbe490231551365c125f4ab4822fe6b5a41"`
[INFO] running `"docker" "rm" "-f" "d96b0f3725d9e96e5942aa84a706fdbe490231551365c125f4ab4822fe6b5a41"`
[INFO] [stdout] d96b0f3725d9e96e5942aa84a706fdbe490231551365c125f4ab4822fe6b5a41
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 2daa57af0110c8362c2caf95933a6627f38b0eaf4c2e6e0cabed195b90e31f2e
[INFO] running `"docker" "start" "-a" "2daa57af0110c8362c2caf95933a6627f38b0eaf4c2e6e0cabed195b90e31f2e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/linear_regression-ca0485b82ac2dd27
[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" "2daa57af0110c8362c2caf95933a6627f38b0eaf4c2e6e0cabed195b90e31f2e"`
[INFO] running `"docker" "rm" "-f" "2daa57af0110c8362c2caf95933a6627f38b0eaf4c2e6e0cabed195b90e31f2e"`
[INFO] [stdout] 2daa57af0110c8362c2caf95933a6627f38b0eaf4c2e6e0cabed195b90e31f2e