[INFO] fetching crate want 0.3.1...
[INFO] checking want-0.3.1 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] extracting crate want 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate want 0.3.1 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate want 0.3.1
[INFO] finished tweaking crates.io crate want 0.3.1
[INFO] tweaked toml for crates.io crate want 0.3.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18ec1909d0f677eb6524541953eb29bddc7f3487876d4683b910b6bc1688a04a
[INFO] running `Command { std: "docker" "start" "-a" "18ec1909d0f677eb6524541953eb29bddc7f3487876d4683b910b6bc1688a04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18ec1909d0f677eb6524541953eb29bddc7f3487876d4683b910b6bc1688a04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18ec1909d0f677eb6524541953eb29bddc7f3487876d4683b910b6bc1688a04a", kill_on_drop: false }`
[INFO] [stdout] 18ec1909d0f677eb6524541953eb29bddc7f3487876d4683b910b6bc1688a04a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a25800b0ded5041e9618c50cdd055a4a7385a5b824c87fd0b68b65774b898d0
[INFO] running `Command { std: "docker" "start" "-a" "2a25800b0ded5041e9618c50cdd055a4a7385a5b824c87fd0b68b65774b898d0", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking want v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.6
[INFO] [stdout] error[E0061]: this method takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> benches/throughput.rs:12:20
[INFO] [stdout]     |
[INFO] [stdout] 12  |         assert!(gv.poll_want().unwrap().is_ready());
[INFO] [stdout]     |                    ^^^^^^^^^-- an argument of type `&mut Context<'_>` is missing
[INFO] [stdout]     |
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:192:12
[INFO] [stdout]     |
[INFO] [stdout] 192 |     pub fn poll_want(&mut self, cx: &mut task::Context<'_>) -> Poll<Result<(), Closed>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] help: provide the argument
[INFO] [stdout]     |
[INFO] [stdout] 12  |         assert!(gv.poll_want(/* &mut Context<'_> */).unwrap().is_ready());
[INFO] [stdout]     |                             ~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap` found for enum `Poll` in the current scope
[INFO] [stdout]   --> benches/throughput.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |         assert!(gv.poll_want().unwrap().is_ready());
[INFO] [stdout]    |                                ^^^^^^ method not found in `Poll<Result<(), Closed>>`
[INFO] [stdout]    |
[INFO] [stdout] note: the method `unwrap` exists on the type `Result<(), Closed>`
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/result.rs:1071:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `want` (bench "throughput") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "2a25800b0ded5041e9618c50cdd055a4a7385a5b824c87fd0b68b65774b898d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a25800b0ded5041e9618c50cdd055a4a7385a5b824c87fd0b68b65774b898d0", kill_on_drop: false }`
[INFO] [stdout] 2a25800b0ded5041e9618c50cdd055a4a7385a5b824c87fd0b68b65774b898d0
[INFO] checking want-0.3.1 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3
[INFO] extracting crate want 0.3.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate want 0.3.1 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate want 0.3.1
[INFO] finished tweaking crates.io crate want 0.3.1
[INFO] tweaked toml for crates.io crate want 0.3.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32620e6f179238edb0ed2fcf83566b8821df056c8ff8672c6902d534a1ff80c6
[INFO] running `Command { std: "docker" "start" "-a" "32620e6f179238edb0ed2fcf83566b8821df056c8ff8672c6902d534a1ff80c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32620e6f179238edb0ed2fcf83566b8821df056c8ff8672c6902d534a1ff80c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32620e6f179238edb0ed2fcf83566b8821df056c8ff8672c6902d534a1ff80c6", kill_on_drop: false }`
[INFO] [stdout] 32620e6f179238edb0ed2fcf83566b8821df056c8ff8672c6902d534a1ff80c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 400dfbfbb6efdc73d1f3f3d0348a0c84492d510e6914ae175103b62ea5740382
[INFO] running `Command { std: "docker" "start" "-a" "400dfbfbb6efdc73d1f3f3d0348a0c84492d510e6914ae175103b62ea5740382", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "400dfbfbb6efdc73d1f3f3d0348a0c84492d510e6914ae175103b62ea5740382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "400dfbfbb6efdc73d1f3f3d0348a0c84492d510e6914ae175103b62ea5740382", kill_on_drop: false }`
[INFO] [stdout] 400dfbfbb6efdc73d1f3f3d0348a0c84492d510e6914ae175103b62ea5740382