[INFO] cloning repository https://github.com/luojia65/learn-async
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luojia65/learn-async" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Flearn-async", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Flearn-async'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4dc8e985b3f3298029d13d451abfc213a10adc3
[INFO] testing luojia65/learn-async against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Flearn-async" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luojia65/learn-async on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luojia65/learn-async
[INFO] finished tweaking git repo https://github.com/luojia65/learn-async
[INFO] tweaked toml for git repo https://github.com/luojia65/learn-async written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/luojia65/learn-async already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 230f62993d7bec793b21b7abb80a590eacab11c92fa61c6b34f7b2964e96694e
[INFO] running `Command { std: "docker" "start" "-a" "230f62993d7bec793b21b7abb80a590eacab11c92fa61c6b34f7b2964e96694e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "230f62993d7bec793b21b7abb80a590eacab11c92fa61c6b34f7b2964e96694e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "230f62993d7bec793b21b7abb80a590eacab11c92fa61c6b34f7b2964e96694e", kill_on_drop: false }`
[INFO] [stdout] 230f62993d7bec793b21b7abb80a590eacab11c92fa61c6b34f7b2964e96694e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab6b69a7fe9e4dd2cc19cd56ce2fc1fe7c6ccd13b60dcfde35d21df7f708c945
[INFO] running `Command { std: "docker" "start" "-a" "ab6b69a7fe9e4dd2cc19cd56ce2fc1fe7c6ccd13b60dcfde35d21df7f708c945", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling futures-sink v0.3.12
[INFO] [stderr]    Compiling futures-core v0.3.12
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling futures-io v0.3.12
[INFO] [stderr]    Compiling futures-task v0.3.12
[INFO] [stderr]    Compiling futures-channel v0.3.12
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling futures-util v0.3.12
[INFO] [stderr]    Compiling futures-executor v0.3.12
[INFO] [stderr]    Compiling futures v0.3.12
[INFO] [stderr]    Compiling learn-async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.09s
[INFO] running `Command { std: "docker" "inspect" "ab6b69a7fe9e4dd2cc19cd56ce2fc1fe7c6ccd13b60dcfde35d21df7f708c945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab6b69a7fe9e4dd2cc19cd56ce2fc1fe7c6ccd13b60dcfde35d21df7f708c945", kill_on_drop: false }`
[INFO] [stdout] ab6b69a7fe9e4dd2cc19cd56ce2fc1fe7c6ccd13b60dcfde35d21df7f708c945
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f5862e2728744c07d071282d0173d50798d7389ce8141d46736f1dd6858b613
[INFO] running `Command { std: "docker" "start" "-a" "9f5862e2728744c07d071282d0173d50798d7389ce8141d46736f1dd6858b613", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learn-async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.16s
[INFO] [stderr]   Executable unittests src/bin/hello-world.rs (/opt/rustwide/target/debug/deps/hello_world-7dbd45ec7d79742d)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/learn_async-f9e8508253a882f7)
[INFO] [stderr]   Executable unittests src/bin/my-executor.rs (/opt/rustwide/target/debug/deps/my_executor-69ac6b230f59d2ea)
[INFO] [stderr]   Executable unittests src/bin/my-future.rs (/opt/rustwide/target/debug/deps/my_future-fd061c23c2362eff)
[INFO] [stderr]   Executable unittests src/bin/sing-song-async.rs (/opt/rustwide/target/debug/deps/sing_song_async-825efaab64a06fd1)
[INFO] [stderr]   Executable unittests src/bin/sing-song-blocking.rs (/opt/rustwide/target/debug/deps/sing_song_blocking-db1516bce07016f7)
[INFO] [stderr]   Executable unittests src/bin/timer-future.rs (/opt/rustwide/target/debug/deps/timer_future-5af2883e49b754a0)
[INFO] running `Command { std: "docker" "inspect" "9f5862e2728744c07d071282d0173d50798d7389ce8141d46736f1dd6858b613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f5862e2728744c07d071282d0173d50798d7389ce8141d46736f1dd6858b613", kill_on_drop: false }`
[INFO] [stdout] 9f5862e2728744c07d071282d0173d50798d7389ce8141d46736f1dd6858b613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5585e5c81753dda4c180d398924d532d04a14cb72415cacc42f0c9c42a0bcfad
[INFO] running `Command { std: "docker" "start" "-a" "5585e5c81753dda4c180d398924d532d04a14cb72415cacc42f0c9c42a0bcfad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/bin/hello-world.rs (/opt/rustwide/target/debug/deps/hello_world-7dbd45ec7d79742d)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learn_async-f9e8508253a882f7)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/my-executor.rs (/opt/rustwide/target/debug/deps/my_executor-69ac6b230f59d2ea)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/my-future.rs (/opt/rustwide/target/debug/deps/my_future-fd061c23c2362eff)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/sing-song-async.rs (/opt/rustwide/target/debug/deps/sing_song_async-825efaab64a06fd1)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/sing-song-blocking.rs (/opt/rustwide/target/debug/deps/sing_song_blocking-db1516bce07016f7)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/timer-future.rs (/opt/rustwide/target/debug/deps/timer_future-5af2883e49b754a0)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5585e5c81753dda4c180d398924d532d04a14cb72415cacc42f0c9c42a0bcfad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5585e5c81753dda4c180d398924d532d04a14cb72415cacc42f0c9c42a0bcfad", kill_on_drop: false }`
[INFO] [stdout] 5585e5c81753dda4c180d398924d532d04a14cb72415cacc42f0c9c42a0bcfad