[INFO] fetching crate tange-collection 0.1.2...
[INFO] checking tange-collection-0.1.2 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate tange-collection 0.1.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate tange-collection 0.1.2 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab6b9161380d4dcf244560a0b5f07fdace49ccb933c541bbd727f6fd7a77caa9
[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" "ab6b9161380d4dcf244560a0b5f07fdace49ccb933c541bbd727f6fd7a77caa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab6b9161380d4dcf244560a0b5f07fdace49ccb933c541bbd727f6fd7a77caa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab6b9161380d4dcf244560a0b5f07fdace49ccb933c541bbd727f6fd7a77caa9", kill_on_drop: false }`
[INFO] [stdout] ab6b9161380d4dcf244560a0b5f07fdace49ccb933c541bbd727f6fd7a77caa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee5dac1fed2fcfd64ed3ae2359ebefd2600ecc75bcf35a04cce6ed8e62636f1e
[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" "ee5dac1fed2fcfd64ed3ae2359ebefd2600ecc75bcf35a04cce6ed8e62636f1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking jobpool v0.3.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking priority-queue v0.5.4
[INFO] [stderr]    Compiling quote v1.0.9
[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]    Compiling serde_derive v1.0.125
[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 19.45s
[INFO] running `Command { std: "docker" "inspect" "ee5dac1fed2fcfd64ed3ae2359ebefd2600ecc75bcf35a04cce6ed8e62636f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee5dac1fed2fcfd64ed3ae2359ebefd2600ecc75bcf35a04cce6ed8e62636f1e", kill_on_drop: false }`
[INFO] [stdout] ee5dac1fed2fcfd64ed3ae2359ebefd2600ecc75bcf35a04cce6ed8e62636f1e