[INFO] fetching crate nostd_async 0.3.1...
[INFO] testing nostd_async-0.3.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate nostd_async 0.3.1 into /workspace/builds/worker-58/source
[INFO] validating manifest of crates.io crate nostd_async 0.3.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nostd_async 0.3.1
[INFO] finished tweaking crates.io crate nostd_async 0.3.1
[INFO] tweaked toml for crates.io crate nostd_async 0.3.1 written to /workspace/builds/worker-58/source/Cargo.toml
[INFO] crate crates.io crate nostd_async 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-micro v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 402f5de22df47dfd443f75fcefaed1adaa7ed5864f7a90a0abf68f06e9f19947
[INFO] running `Command { std: "docker" "start" "-a" "402f5de22df47dfd443f75fcefaed1adaa7ed5864f7a90a0abf68f06e9f19947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "402f5de22df47dfd443f75fcefaed1adaa7ed5864f7a90a0abf68f06e9f19947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "402f5de22df47dfd443f75fcefaed1adaa7ed5864f7a90a0abf68f06e9f19947", kill_on_drop: false }`
[INFO] [stdout] 402f5de22df47dfd443f75fcefaed1adaa7ed5864f7a90a0abf68f06e9f19947
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c028fc94033da6e446e0888a364512c59dffe547fed83b6ee4ca14ab53d893b
[INFO] running `Command { std: "docker" "start" "-a" "5c028fc94033da6e446e0888a364512c59dffe547fed83b6ee4ca14ab53d893b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nostd_async v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "5c028fc94033da6e446e0888a364512c59dffe547fed83b6ee4ca14ab53d893b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c028fc94033da6e446e0888a364512c59dffe547fed83b6ee4ca14ab53d893b", kill_on_drop: false }`
[INFO] [stdout] 5c028fc94033da6e446e0888a364512c59dffe547fed83b6ee4ca14ab53d893b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35bec01b3e453ac676c4f49feee62054ac75fa10b2bf4589c336302f7a8db5cb
[INFO] running `Command { std: "docker" "start" "-a" "35bec01b3e453ac676c4f49feee62054ac75fa10b2bf4589c336302f7a8db5cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-micro v0.4.0
[INFO] [stderr]    Compiling nostd_async v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "35bec01b3e453ac676c4f49feee62054ac75fa10b2bf4589c336302f7a8db5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35bec01b3e453ac676c4f49feee62054ac75fa10b2bf4589c336302f7a8db5cb", kill_on_drop: false }`
[INFO] [stdout] 35bec01b3e453ac676c4f49feee62054ac75fa10b2bf4589c336302f7a8db5cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e5763c51f16db9a58cfb3ef83ce00e07811427ffcc450508ff509f628f653249
[INFO] running `Command { std: "docker" "start" "-a" "e5763c51f16db9a58cfb3ef83ce00e07811427ffcc450508ff509f628f653249", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nostd_async-cf36abfb1d295c4e)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test linked_list::tests::list_b_a_is_valid ... ok
[INFO] [stdout] test linked_list::tests::list_a_b_is_valid ... ok
[INFO] [stdout] test linked_list::tests::singleton_insert_front_is_valid ... ok
[INFO] [stdout] test linked_list::tests::singleton_insert_back_is_valid ... ok
[INFO] [stdout] test linked_list::tests::empty_list_is_valid ... ok
[INFO] [stdout] test linked_list::tests::triple_list_is_valid_012 ... ok
[INFO] [stdout] test linked_list::tests::triple_list_is_valid_021 ... ok
[INFO] [stdout] test linked_list::tests::triple_list_is_valid_102 ... ok
[INFO] [stdout] test linked_list::tests::triple_list_is_valid_120 ... ok
[INFO] [stdout] test linked_list::tests::triple_list_is_valid_210 ... ok
[INFO] [stdout] test linked_list::tests::triple_list_is_valid_201 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nostd_async
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e5763c51f16db9a58cfb3ef83ce00e07811427ffcc450508ff509f628f653249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5763c51f16db9a58cfb3ef83ce00e07811427ffcc450508ff509f628f653249", kill_on_drop: false }`
[INFO] [stdout] e5763c51f16db9a58cfb3ef83ce00e07811427ffcc450508ff509f628f653249