[INFO] fetching crate hotdrink-rs 0.1.3...
[INFO] checking hotdrink-rs-0.1.3 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate hotdrink-rs 0.1.3 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate hotdrink-rs 0.1.3 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hotdrink-rs 0.1.3
[INFO] finished tweaking crates.io crate hotdrink-rs 0.1.3
[INFO] tweaked toml for crates.io crate hotdrink-rs 0.1.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate hotdrink-rs 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ace2ecdd7abf93be44e077dff3a3b9672d10aad92955c70a06a5533b53cc0d1
[INFO] running `Command { std: "docker" "start" "-a" "2ace2ecdd7abf93be44e077dff3a3b9672d10aad92955c70a06a5533b53cc0d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ace2ecdd7abf93be44e077dff3a3b9672d10aad92955c70a06a5533b53cc0d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ace2ecdd7abf93be44e077dff3a3b9672d10aad92955c70a06a5533b53cc0d1", kill_on_drop: false }`
[INFO] [stdout] 2ace2ecdd7abf93be44e077dff3a3b9672d10aad92955c70a06a5533b53cc0d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a8bb6d367c7d4528fb24c531fa1cd134dea62b90177e20865aa1c56b7a42183
[INFO] running `Command { std: "docker" "start" "-a" "4a8bb6d367c7d4528fb24c531fa1cd134dea62b90177e20865aa1c56b7a42183", kill_on_drop: false }`
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[INFO] [stderr]     Checking futures-executor v0.3.14
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[INFO] [stderr]     Checking hotdrink-rs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/variable_ranking/linked_list_ranker.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::{self, Iterator};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linked_list_ranker::LinkedListRanker`
[INFO] [stdout]  --> src/variable_ranking/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use linked_list_ranker::LinkedListRanker;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]    --> src/lib.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | #![feature(drain_filter)]
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `Vec<Constraint<T>>` in the current scope
[INFO] [stdout]    --> src/model/component.rs:299:26
[INFO] [stdout]     |
[INFO] [stdout] 299 |         self.constraints.drain_filter(|c| {
[INFO] [stdout]     |         -----------------^^^^^^^^^^^^ method not found in `Vec<Constraint<T>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `Vec<Method<T>>` in the current scope
[INFO] [stdout]   --> src/model/constraint.rs:55:44
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let removed: Vec<_> = self.methods.drain_filter(|m| m.name() == name).collect();
[INFO] [stdout]    |                                            ^^^^^^^^^^^^ method not found in `Vec<Method<T>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hotdrink-rs` (lib) due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4a8bb6d367c7d4528fb24c531fa1cd134dea62b90177e20865aa1c56b7a42183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a8bb6d367c7d4528fb24c531fa1cd134dea62b90177e20865aa1c56b7a42183", kill_on_drop: false }`
[INFO] [stdout] 4a8bb6d367c7d4528fb24c531fa1cd134dea62b90177e20865aa1c56b7a42183
