[INFO] fetching crate zflow 0.1.12...
[INFO] checking zflow-0.1.12 against 1.95.0 for pr-155915
[INFO] extracting crate zflow 0.1.12 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate zflow 0.1.12
[INFO] finished tweaking crates.io crate zflow 0.1.12
[INFO] tweaked toml for crates.io crate zflow 0.1.12 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate zflow 0.1.12 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zflow 0.1.12 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded futures-macro v0.3.25
[INFO] [stderr]   Downloaded futures v0.3.25
[INFO] [stderr]   Downloaded futures-task v0.3.25
[INFO] [stderr]   Downloaded futures-io v0.3.25
[INFO] [stderr]   Downloaded beady v0.6.0
[INFO] [stderr]   Downloaded foreach v0.3.0
[INFO] [stderr]   Downloaded nuid v0.3.2
[INFO] [stderr]   Downloaded futures-executor v0.3.25
[INFO] [stderr]   Downloaded serde_derive v1.0.147
[INFO] [stderr]   Downloaded serde v1.0.147
[INFO] [stderr]   Downloaded serde_json v1.0.87
[INFO] [stderr]   Downloaded futures-util v0.3.25
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31322bc57015915e4040676bd66c37f73ec24a9f357f725f13dde52e04b5819a
[INFO] running `Command { std: "docker" "start" "-a" "31322bc57015915e4040676bd66c37f73ec24a9f357f725f13dde52e04b5819a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31322bc57015915e4040676bd66c37f73ec24a9f357f725f13dde52e04b5819a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31322bc57015915e4040676bd66c37f73ec24a9f357f725f13dde52e04b5819a", kill_on_drop: false }`
[INFO] [stdout] 31322bc57015915e4040676bd66c37f73ec24a9f357f725f13dde52e04b5819a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3012d685d737fff82b1de15a1aa45f80ab9e264f3a4479f307aaa34acdf32249
[INFO] running `Command { std: "docker" "start" "-a" "3012d685d737fff82b1de15a1aa45f80ab9e264f3a4479f307aaa34acdf32249", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking foreach v0.3.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking nuid v0.3.2
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling beady v0.6.0
[INFO] [stderr]     Checking futures-executor v0.3.25
[INFO] [stderr]     Checking futures v0.3.25
[INFO] [stderr]     Checking assert-json-diff v2.0.2
[INFO] [stderr]     Checking zflow v0.1.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph/graph.rs:495:17
[INFO] [stdout]     |
[INFO] [stdout] 495 |             let mut group = &mut self.groups[i];
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type
[INFO] [stdout]    --> src/graph/graph.rs:515:48
[INFO] [stdout]     |
[INFO] [stdout] 515 |                     self.emit("remove_group", v.clone());
[INFO] [stdout]     |                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type
[INFO] [stdout]    --> src/graph/graph.rs:632:56
[INFO] [stdout]     |
[INFO] [stdout] 632 |                         self.emit("remove_group", group.clone());
[INFO] [stdout]     |                                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type
[INFO] [stdout]    --> src/graph/graph.rs:929:54
[INFO] [stdout]     |
[INFO] [stdout] 929 |                         self.emit("remove_edge", edge.clone());
[INFO] [stdout]     |                                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type
[INFO] [stdout]    --> src/graph/graph.rs:942:50
[INFO] [stdout]     |
[INFO] [stdout] 942 |                     self.emit("remove_edge", edge.clone());
[INFO] [stdout]     |                                                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graph/graph.rs:495:17
[INFO] [stdout]     |
[INFO] [stdout] 495 |             let mut group = &mut self.groups[i];
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type
[INFO] [stdout]    --> src/graph/graph.rs:515:48
[INFO] [stdout]     |
[INFO] [stdout] 515 |                     self.emit("remove_group", v.clone());
[INFO] [stdout]     |                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type
[INFO] [stdout]    --> src/graph/graph.rs:632:56
[INFO] [stdout]     |
[INFO] [stdout] 632 |                         self.emit("remove_group", group.clone());
[INFO] [stdout]     |                                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type
[INFO] [stdout]    --> src/graph/graph.rs:929:54
[INFO] [stdout]     |
[INFO] [stdout] 929 |                         self.emit("remove_edge", edge.clone());
[INFO] [stdout]     |                                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type
[INFO] [stdout]    --> src/graph/graph.rs:942:50
[INFO] [stdout]     |
[INFO] [stdout] 942 |                     self.emit("remove_edge", edge.clone());
[INFO] [stdout]     |                                                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.87s
[INFO] running `Command { std: "docker" "inspect" "3012d685d737fff82b1de15a1aa45f80ab9e264f3a4479f307aaa34acdf32249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3012d685d737fff82b1de15a1aa45f80ab9e264f3a4479f307aaa34acdf32249", kill_on_drop: false }`
[INFO] [stdout] 3012d685d737fff82b1de15a1aa45f80ab9e264f3a4479f307aaa34acdf32249
