[INFO] updating cached repository https://github.com/ZhouHansen/async_rust_playground
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 35a57a71145390d68ca6d19ee16905543662d726
[INFO] testing ZhouHansen/async_rust_playground against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZhouHansen%2Fasync_rust_playground" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ZhouHansen/async_rust_playground on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ZhouHansen/async_rust_playground
[INFO] finished tweaking git repo https://github.com/ZhouHansen/async_rust_playground
[INFO] tweaked toml for git repo https://github.com/ZhouHansen/async_rust_playground written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ZhouHansen/async_rust_playground already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9a3bed9900bd206a7ce31780576576451d6c3b748573778e72356f05eb4679cc
[INFO] running `"docker" "start" "-a" "9a3bed9900bd206a7ce31780576576451d6c3b748573778e72356f05eb4679cc"`
[INFO] [stderr]    Compiling async_rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/task_exc.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub task: Box<ToyTask + Send>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ToyTask + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `"docker" "inspect" "9a3bed9900bd206a7ce31780576576451d6c3b748573778e72356f05eb4679cc"`
[INFO] running `"docker" "rm" "-f" "9a3bed9900bd206a7ce31780576576451d6c3b748573778e72356f05eb4679cc"`
[INFO] [stdout] 9a3bed9900bd206a7ce31780576576451d6c3b748573778e72356f05eb4679cc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fead23d43cb5d2863166a47468908610f14663c2a2aec2709e67818160a32ad6
[INFO] running `"docker" "start" "-a" "fead23d43cb5d2863166a47468908610f14663c2a2aec2709e67818160a32ad6"`
[INFO] [stderr]    Compiling async_rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/task_exc.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub task: Box<ToyTask + Send>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ToyTask + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/task_exc.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub task: Box<ToyTask + Send>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ToyTask + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "fead23d43cb5d2863166a47468908610f14663c2a2aec2709e67818160a32ad6"`
[INFO] running `"docker" "rm" "-f" "fead23d43cb5d2863166a47468908610f14663c2a2aec2709e67818160a32ad6"`
[INFO] [stdout] fead23d43cb5d2863166a47468908610f14663c2a2aec2709e67818160a32ad6
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93ee5a5157c301f64368301d939b876f09900cc057fb120d20ee93c8ef82ecf4
[INFO] running `"docker" "start" "-a" "93ee5a5157c301f64368301d939b876f09900cc057fb120d20ee93c8ef82ecf4"`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/task_exc.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub task: Box<ToyTask + Send>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ToyTask + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] 
[INFO] [stderr]   --> src/task_exc.rs:24:19
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 24 |     pub task: Box<ToyTask + Send>,
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ToyTask + Send`
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/async_rust_playground-ee5e4e2d6675e372
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/async_rust_playground-a153593535d5a1fc
[INFO] [stderr]    Doc-tests async_rust_playground
[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] [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" "93ee5a5157c301f64368301d939b876f09900cc057fb120d20ee93c8ef82ecf4"`
[INFO] running `"docker" "rm" "-f" "93ee5a5157c301f64368301d939b876f09900cc057fb120d20ee93c8ef82ecf4"`
[INFO] [stdout] 93ee5a5157c301f64368301d939b876f09900cc057fb120d20ee93c8ef82ecf4