[INFO] fetching crate sp-tasks 3.0.0...
[INFO] testing sp-tasks-3.0.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate sp-tasks 3.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sp-tasks 3.0.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sp-tasks 3.0.0
[INFO] finished tweaking crates.io crate sp-tasks 3.0.0
[INFO] tweaked toml for crates.io crate sp-tasks 3.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 543fdf405dafbf5da6f110485f379cf2ee264c6bcb45c8b084ec744a70e241ee
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "543fdf405dafbf5da6f110485f379cf2ee264c6bcb45c8b084ec744a70e241ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "543fdf405dafbf5da6f110485f379cf2ee264c6bcb45c8b084ec744a70e241ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "543fdf405dafbf5da6f110485f379cf2ee264c6bcb45c8b084ec744a70e241ee", kill_on_drop: false }`
[INFO] [stdout] 543fdf405dafbf5da6f110485f379cf2ee264c6bcb45c8b084ec744a70e241ee
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42c59d66aa4731de24431cb7d386d9461d10525a73dc151a2bbf5e74711725b8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "42c59d66aa4731de24431cb7d386d9461d10525a73dc151a2bbf5e74711725b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling object v0.25.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling sp-panic-handler v3.0.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling sp-debug-derive v3.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling parity-util-mem-derive v0.1.0
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling derive_more v0.99.14
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling dyn-clonable v0.9.0
[INFO] [stderr]    Compiling merlin v2.0.1
[INFO] [stderr]    Compiling curve25519-dalek v2.1.2
[INFO] [stderr]    Compiling curve25519-dalek v3.1.0
[INFO] [stderr]    Compiling secrecy v0.7.0
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling thiserror v1.0.25
[INFO] [stderr]    Compiling tiny-bip39 v0.8.0
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling impl-serde v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling schnorrkel v0.9.1
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling substrate-bip39 v0.4.2
[INFO] [stderr]    Compiling tracing-subscriber v0.2.18
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.1.0
[INFO] [stderr]    Compiling sp-runtime-interface-proc-macro v3.0.0
[INFO] [stderr]    Compiling parity-scale-codec v2.1.1
[INFO] [stderr]    Compiling impl-codec v0.5.0
[INFO] [stderr]    Compiling sp-storage v3.0.0
[INFO] [stderr]    Compiling sp-wasm-interface v3.0.0
[INFO] [stderr]    Compiling sp-tracing v3.0.0
[INFO] [stderr]    Compiling primitive-types v0.9.0
[INFO] [stderr]    Compiling sp-externalities v0.9.0
[INFO] [stderr]    Compiling parity-util-mem v0.9.0
[INFO] [stderr]    Compiling sp-runtime-interface v3.0.0
[INFO] [stderr]    Compiling memory-db v0.26.0
[INFO] [stderr]    Compiling sp-core v3.0.0
[INFO] [stderr]    Compiling sp-trie v3.0.0
[INFO] [stderr]    Compiling sp-keystore v0.9.0
[INFO] [stderr]    Compiling sp-state-machine v0.9.0
[INFO] [stderr]    Compiling sp-io v3.0.0
[INFO] [stderr]    Compiling sp-tasks v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "42c59d66aa4731de24431cb7d386d9461d10525a73dc151a2bbf5e74711725b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42c59d66aa4731de24431cb7d386d9461d10525a73dc151a2bbf5e74711725b8", kill_on_drop: false }`
[INFO] [stdout] 42c59d66aa4731de24431cb7d386d9461d10525a73dc151a2bbf5e74711725b8
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bfb758ce2ac761e746c5288003c1d18f03daa6229636d9a986e69ec163fd8e55
[INFO] running `Command { std: "docker" "start" "-a" "bfb758ce2ac761e746c5288003c1d18f03daa6229636d9a986e69ec163fd8e55", kill_on_drop: false }`
[INFO] [stderr]    Compiling sp-tasks v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.16s
[INFO] running `Command { std: "docker" "inspect" "bfb758ce2ac761e746c5288003c1d18f03daa6229636d9a986e69ec163fd8e55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfb758ce2ac761e746c5288003c1d18f03daa6229636d9a986e69ec163fd8e55", kill_on_drop: false }`
[INFO] [stdout] bfb758ce2ac761e746c5288003c1d18f03daa6229636d9a986e69ec163fd8e55
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 304af9af13e940993e5807722aad965b081b98e1466de506d1b2b43178b2fbe6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "304af9af13e940993e5807722aad965b081b98e1466de506d1b2b43178b2fbe6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sp_tasks-1edadf64c2d4c0fb)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::basic ... ok
[INFO] [stdout] test tests::panicking ... ok
[INFO] [stdout] test tests::many_joins ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.38s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sp-tasks
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 35) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 35) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `codec`
[INFO] [stdout]  --> src/lib.rs:36:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use codec::Encode;
[INFO] [stdout]   |     ^^^^^ help: a similar path exists: `sp_runtime_interface::codec`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `encode` found for enum `Option<&[u8]>` in the current scope
[INFO] [stdout]    --> src/lib.rs:45:97
[INFO] [stdout]     |
[INFO] [stdout] 13  |            sp_tasks::spawn(my_parallel_computator, computation_payload.chunks(10).nth(idx as _).encode())
[INFO] [stdout]     |                                                                                                 ^^^^^^ method not found in `Option<&[u8]>`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/parity-scale-codec-2.1.1/src/codec.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 221 |     fn encode(&self) -> Vec<u8> {
[INFO] [stdout]     |        ------ the method is available for `Option<&[u8]>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 3   | use parity_scale_codec::codec::Encode;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 35)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "304af9af13e940993e5807722aad965b081b98e1466de506d1b2b43178b2fbe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304af9af13e940993e5807722aad965b081b98e1466de506d1b2b43178b2fbe6", kill_on_drop: false }`
[INFO] [stdout] 304af9af13e940993e5807722aad965b081b98e1466de506d1b2b43178b2fbe6