[INFO] fetching crate tange-collection 0.1.2...
[INFO] checking tange-collection-0.1.2 against try#169954edd744527414c631e9af1bbdc537b0cdf2 for pr-75192
[INFO] extracting crate tange-collection 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tange-collection 0.1.2 on toolchain 169954edd744527414c631e9af1bbdc537b0cdf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tange-collection 0.1.2
[INFO] finished tweaking crates.io crate tange-collection 0.1.2
[INFO] tweaked toml for crates.io crate tange-collection 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indexmap v0.4.1
[INFO] [stderr]   Downloaded priority-queue v0.5.4
[INFO] [stderr]   Downloaded jobpool v0.3.8
[INFO] [stderr]   Downloaded tange v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33d12bb6980a80dd74b61ea1fc7c6913dc9c9329021b0e19b1d0a156e07e8204
[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" "33d12bb6980a80dd74b61ea1fc7c6913dc9c9329021b0e19b1d0a156e07e8204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33d12bb6980a80dd74b61ea1fc7c6913dc9c9329021b0e19b1d0a156e07e8204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33d12bb6980a80dd74b61ea1fc7c6913dc9c9329021b0e19b1d0a156e07e8204", kill_on_drop: false }`
[INFO] [stdout] 33d12bb6980a80dd74b61ea1fc7c6913dc9c9329021b0e19b1d0a156e07e8204
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6c9a234a68839e4dd57098ccedccaf93c17ab8205d3f046da1ebb0ef8c839a4
[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" "e6c9a234a68839e4dd57098ccedccaf93c17ab8205d3f046da1ebb0ef8c839a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]     Checking jobpool v0.3.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking priority-queue v0.5.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking tange v0.1.1
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking tange-collection v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/collection/memory.rs:169:56
[INFO] [stdout]     |
[INFO] [stdout] 169 |         F: 'static + Sync + Send + Clone + Fn(&A, &mut FnMut(B) -> ())
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(B) -> ()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/collection/memory.rs:197:56
[INFO] [stdout]     |
[INFO] [stdout] 197 |         F: 'static + Sync + Send + Clone + Fn(&A, &mut FnMut(B) -> ())
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(B) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/collection/disk.rs:199:56
[INFO] [stdout]     |
[INFO] [stdout] 199 |         F: 'static + Sync + Send + Clone + Fn(&A, &mut FnMut(B) -> ())
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(B) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection/mod.rs:18:52
[INFO] [stdout]    |
[INFO] [stdout] 18 |     F: 'static + Sync + Send + Clone + Fn(&A, &mut FnMut(B) -> ()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(B) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/collection/memory.rs:169:56
[INFO] [stdout]     |
[INFO] [stdout] 169 |         F: 'static + Sync + Send + Clone + Fn(&A, &mut FnMut(B) -> ())
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(B) -> ()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/collection/memory.rs:197:56
[INFO] [stdout]     |
[INFO] [stdout] 197 |         F: 'static + Sync + Send + Clone + Fn(&A, &mut FnMut(B) -> ())
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(B) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/collection/disk.rs:199:56
[INFO] [stdout]     |
[INFO] [stdout] 199 |         F: 'static + Sync + Send + Clone + Fn(&A, &mut FnMut(B) -> ())
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(B) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection/mod.rs:18:52
[INFO] [stdout]    |
[INFO] [stdout] 18 |     F: 'static + Sync + Send + Clone + Fn(&A, &mut FnMut(B) -> ()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(B) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.66s
[INFO] running `Command { std: "docker" "inspect" "e6c9a234a68839e4dd57098ccedccaf93c17ab8205d3f046da1ebb0ef8c839a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6c9a234a68839e4dd57098ccedccaf93c17ab8205d3f046da1ebb0ef8c839a4", kill_on_drop: false }`
[INFO] [stdout] e6c9a234a68839e4dd57098ccedccaf93c17ab8205d3f046da1ebb0ef8c839a4