[INFO] fetching crate tange-collection 0.1.2...
[INFO] checking tange-collection-0.1.2 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate tange-collection 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tange-collection 0.1.2 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d0b98bd1f3cbf76f7c2df60761ce43fd1f13e481fa7f78e64183b542c507dce
[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" "0d0b98bd1f3cbf76f7c2df60761ce43fd1f13e481fa7f78e64183b542c507dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d0b98bd1f3cbf76f7c2df60761ce43fd1f13e481fa7f78e64183b542c507dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d0b98bd1f3cbf76f7c2df60761ce43fd1f13e481fa7f78e64183b542c507dce", kill_on_drop: false }`
[INFO] [stdout] 0d0b98bd1f3cbf76f7c2df60761ce43fd1f13e481fa7f78e64183b542c507dce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1bf23b9191def801412e9b719c4f664fa0bd3e65d4f7b0f2e7c9d682d59a4bd
[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" "d1bf23b9191def801412e9b719c4f664fa0bd3e65d4f7b0f2e7c9d682d59a4bd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking jobpool v0.3.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking priority-queue v0.5.4
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking tange v0.1.1
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking bincode v1.3.1
[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 35.68s
[INFO] running `Command { std: "docker" "inspect" "d1bf23b9191def801412e9b719c4f664fa0bd3e65d4f7b0f2e7c9d682d59a4bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1bf23b9191def801412e9b719c4f664fa0bd3e65d4f7b0f2e7c9d682d59a4bd", kill_on_drop: false }`
[INFO] [stdout] d1bf23b9191def801412e9b719c4f664fa0bd3e65d4f7b0f2e7c9d682d59a4bd