[INFO] fetching crate elba 0.3.0...
[INFO] checking elba-0.3.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate elba 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate elba 0.3.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elba 0.3.0
[INFO] finished tweaking crates.io crate elba 0.3.0
[INFO] tweaked toml for crates.io crate elba 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8326f44aecd91470c0743f6139c649be0d659b4bbc1e42be0e48ae532c43035e
[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" "8326f44aecd91470c0743f6139c649be0d659b4bbc1e42be0e48ae532c43035e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8326f44aecd91470c0743f6139c649be0d659b4bbc1e42be0e48ae532c43035e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8326f44aecd91470c0743f6139c649be0d659b4bbc1e42be0e48ae532c43035e", kill_on_drop: false }`
[INFO] [stdout] 8326f44aecd91470c0743f6139c649be0d659b4bbc1e42be0e48ae532c43035e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9492ed7f0d27cca0bed4fba05e65f193ee65e82a1bed7cb914991818be3ee5b1
[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" "9492ed7f0d27cca0bed4fba05e65f193ee65e82a1bed7cb914991818be3ee5b1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling parking_lot_core v0.6.2
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[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking cookie_store v0.7.0
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[INFO] [stderr]     Checking tokio-reactor v0.1.12
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[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking git2 v0.7.5
[INFO] [stderr]     Checking elba v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib/retrieve/cache.rs:370:10
[INFO] [stdout]     |
[INFO] [stdout] 370 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib/util/git.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |     cb: &mut FnMut(git2::FetchOptions) -> Res<T>,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(git2::FetchOptions) -> Res<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib/retrieve/cache.rs:370:10
[INFO] [stdout]     |
[INFO] [stdout] 370 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib/util/git.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |     cb: &mut FnMut(git2::FetchOptions) -> Res<T>,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(git2::FetchOptions) -> Res<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib/retrieve/mod.rs:205:28
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let locked = self.lockfile.find_by(|sum| sum.id.lowkey_eq(pkg));
[INFO] [stdout]     |                      ------------- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 205 |                     return self
[INFO] [stdout]     |                            ^^^^ mutable borrow occurs here
[INFO] [stdout] 206 |                         .select(&Summary::new(pkg.clone(), v.clone()))
[INFO] [stdout]     |                                                            - immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib/retrieve/mod.rs:205:28
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let locked = self.lockfile.find_by(|sum| sum.id.lowkey_eq(pkg));
[INFO] [stdout]     |                      ------------- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 205 |                     return self
[INFO] [stdout]     |                            ^^^^ mutable borrow occurs here
[INFO] [stdout] 206 |                         .select(&Summary::new(pkg.clone(), v.clone()))
[INFO] [stdout]     |                                                            - immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 44s
[INFO] running `Command { std: "docker" "inspect" "9492ed7f0d27cca0bed4fba05e65f193ee65e82a1bed7cb914991818be3ee5b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9492ed7f0d27cca0bed4fba05e65f193ee65e82a1bed7cb914991818be3ee5b1", kill_on_drop: false }`
[INFO] [stdout] 9492ed7f0d27cca0bed4fba05e65f193ee65e82a1bed7cb914991818be3ee5b1