[INFO] updating cached repository https://github.com/bartsmykla/rust_learning
[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] 2641c2191be0ef671f1326ba3ccdd1c861bb9054
[INFO] testing bartsmykla/rust_learning against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbartsmykla%2Frust_learning" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bartsmykla/rust_learning 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/bartsmykla/rust_learning
[INFO] finished tweaking git repo https://github.com/bartsmykla/rust_learning
[INFO] tweaked toml for git repo https://github.com/bartsmykla/rust_learning written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/bartsmykla/rust_learning 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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] 58dc500a5259c106d5c163e1a3c1155cd4b055f63baf219369f9c58d30fc27c3
[INFO] running `"docker" "start" "-a" "58dc500a5259c106d5c163e1a3c1155cd4b055f63baf219369f9c58d30fc27c3"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/advanced_features.rs:226:57
[INFO] [stderr]     |
[INFO] [stderr] 226 |     let _obj = Box::new(Ball { diameter: &num }) as Box<Red>;
[INFO] [stderr]     |                                                         ^^^ help: use `dyn`: `dyn Red`
[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/sections/error_handling.rs:186:32
[INFO] [stderr]     |
[INFO] [stderr] 186 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/error_handling.rs:214:32
[INFO] [stderr]     |
[INFO] [stderr] 214 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/error_handling.rs:235:34
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn print_section(name: &str, f: &Fn()) {
[INFO] [stderr]     |                                  ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/functions.rs:274:27
[INFO] [stderr]     |
[INFO] [stderr] 274 |     fn create_fn() -> Box<Fn()> {
[INFO] [stderr]     |                           ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/functions.rs:280:30
[INFO] [stderr]     |
[INFO] [stderr] 280 |     fn create_fnmut() -> Box<FnMut()> {
[INFO] [stderr]     |                              ^^^^^^^ help: use `dyn`: `dyn FnMut()`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/sections/traits.rs:281:55
[INFO] [stderr]     |
[INFO] [stderr] 281 |                 println!("> Foo.add(Bar) was called");;
[INFO] [stderr]     |                                                       ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/helpers.rs:33:39
[INFO] [stderr]    |
[INFO] [stderr] 33 |     subsections: HashMap<&'a str, Box<Fn()>>,
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `"docker" "inspect" "58dc500a5259c106d5c163e1a3c1155cd4b055f63baf219369f9c58d30fc27c3"`
[INFO] running `"docker" "rm" "-f" "58dc500a5259c106d5c163e1a3c1155cd4b055f63baf219369f9c58d30fc27c3"`
[INFO] [stdout] 58dc500a5259c106d5c163e1a3c1155cd4b055f63baf219369f9c58d30fc27c3
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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] 5863c2b0edbe383f73a2ac8e2a22c5b96c2f05a2868c86f81ea85f644f69c226
[INFO] running `"docker" "start" "-a" "5863c2b0edbe383f73a2ac8e2a22c5b96c2f05a2868c86f81ea85f644f69c226"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/advanced_features.rs:226:57
[INFO] [stderr]     |
[INFO] [stderr] 226 |     let _obj = Box::new(Ball { diameter: &num }) as Box<Red>;
[INFO] [stderr]     |                                                         ^^^ help: use `dyn`: `dyn Red`
[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/sections/error_handling.rs:186:32
[INFO] [stderr]     |
[INFO] [stderr] 186 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/error_handling.rs:214:32
[INFO] [stderr]     |
[INFO] [stderr] 214 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/error_handling.rs:235:34
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn print_section(name: &str, f: &Fn()) {
[INFO] [stderr]     |                                  ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/functions.rs:274:27
[INFO] [stderr]     |
[INFO] [stderr] 274 |     fn create_fn() -> Box<Fn()> {
[INFO] [stderr]     |                           ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sections/functions.rs:280:30
[INFO] [stderr]     |
[INFO] [stderr] 280 |     fn create_fnmut() -> Box<FnMut()> {
[INFO] [stderr]     |                              ^^^^^^^ help: use `dyn`: `dyn FnMut()`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/sections/traits.rs:281:55
[INFO] [stderr]     |
[INFO] [stderr] 281 |                 println!("> Foo.add(Bar) was called");;
[INFO] [stderr]     |                                                       ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/helpers.rs:33:39
[INFO] [stderr]    |
[INFO] [stderr] 33 |     subsections: HashMap<&'a str, Box<Fn()>>,
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "5863c2b0edbe383f73a2ac8e2a22c5b96c2f05a2868c86f81ea85f644f69c226"`
[INFO] running `"docker" "rm" "-f" "5863c2b0edbe383f73a2ac8e2a22c5b96c2f05a2868c86f81ea85f644f69c226"`
[INFO] [stdout] 5863c2b0edbe383f73a2ac8e2a22c5b96c2f05a2868c86f81ea85f644f69c226
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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] f90a5a45449160a7ed37a29aa59332e77752fa691bec367576d13fe2a4761d9b
[INFO] running `"docker" "start" "-a" "f90a5a45449160a7ed37a29aa59332e77752fa691bec367576d13fe2a4761d9b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/learning-af48a9acce25599c
[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] [stderr]      Running /opt/rustwide/target/debug/deps/main-55bc25c233c28c42
[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] [stderr]    Doc-tests learning
[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" "f90a5a45449160a7ed37a29aa59332e77752fa691bec367576d13fe2a4761d9b"`
[INFO] running `"docker" "rm" "-f" "f90a5a45449160a7ed37a29aa59332e77752fa691bec367576d13fe2a4761d9b"`
[INFO] [stdout] f90a5a45449160a7ed37a29aa59332e77752fa691bec367576d13fe2a4761d9b