[INFO] updating cached repository https://github.com/jgoodesign/rust-fun
[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] eb50091fd23129865a1aef7c79cd55ec073ac9bd
[INFO] testing jgoodesign/rust-fun against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgoodesign%2Frust-fun" "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/jgoodesign/rust-fun on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jgoodesign/rust-fun
[INFO] finished tweaking git repo https://github.com/jgoodesign/rust-fun
[INFO] tweaked toml for git repo https://github.com/jgoodesign/rust-fun written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jgoodesign/rust-fun already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 6eb952a32c9d0e0e8c5c03304898593c3eddd9d4c325aece08a1e2f8a8268cb0
[INFO] running `"docker" "start" "-a" "6eb952a32c9d0e0e8c5c03304898593c3eddd9d4c325aece08a1e2f8a8268cb0"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 |     reducers: Vec<&'a Fn(Action, T) -> T>,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Action, T) -> T`
[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/main.rs:28:44
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn add_reducer(&mut self, reducer: &'a Fn(Action, T) -> T) {
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Action, T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:117:29
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn add_boxed(a: u32) -> Box<Fn(u32) -> u32> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32) -> u32`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "6eb952a32c9d0e0e8c5c03304898593c3eddd9d4c325aece08a1e2f8a8268cb0"`
[INFO] running `"docker" "rm" "-f" "6eb952a32c9d0e0e8c5c03304898593c3eddd9d4c325aece08a1e2f8a8268cb0"`
[INFO] [stdout] 6eb952a32c9d0e0e8c5c03304898593c3eddd9d4c325aece08a1e2f8a8268cb0
[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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 547156f4c1769643012a35dd636ce99abb316d4fbdfd1c40e8a72cccfc980af4
[INFO] running `"docker" "start" "-a" "547156f4c1769643012a35dd636ce99abb316d4fbdfd1c40e8a72cccfc980af4"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 |     reducers: Vec<&'a Fn(Action, T) -> T>,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Action, T) -> T`
[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/main.rs:28:44
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn add_reducer(&mut self, reducer: &'a Fn(Action, T) -> T) {
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Action, T) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:117:29
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn add_boxed(a: u32) -> Box<Fn(u32) -> u32> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32) -> u32`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "547156f4c1769643012a35dd636ce99abb316d4fbdfd1c40e8a72cccfc980af4"`
[INFO] running `"docker" "rm" "-f" "547156f4c1769643012a35dd636ce99abb316d4fbdfd1c40e8a72cccfc980af4"`
[INFO] [stdout] 547156f4c1769643012a35dd636ce99abb316d4fbdfd1c40e8a72cccfc980af4
[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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] f48de962598c7415d314a5bac16534b2791c79ce9246671660f833dd8faf0944
[INFO] running `"docker" "start" "-a" "f48de962598c7415d314a5bac16534b2791c79ce9246671660f833dd8faf0944"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/learning-d2e78d5e7b305966
[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" "f48de962598c7415d314a5bac16534b2791c79ce9246671660f833dd8faf0944"`
[INFO] running `"docker" "rm" "-f" "f48de962598c7415d314a5bac16534b2791c79ce9246671660f833dd8faf0944"`
[INFO] [stdout] f48de962598c7415d314a5bac16534b2791c79ce9246671660f833dd8faf0944