[INFO] fetching crate av-scenechange 0.4.2...
[INFO] checking av-scenechange-0.4.2 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate av-scenechange 0.4.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate av-scenechange 0.4.2 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate av-scenechange 0.4.2
[INFO] finished tweaking crates.io crate av-scenechange 0.4.2
[INFO] tweaked toml for crates.io crate av-scenechange 0.4.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate av-scenechange 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ee9375e11f10e1599e787fd475be7658320ea063fe296f05eb5af0676dd3fbb2
[INFO] running `Command { std: "docker" "start" "-a" "ee9375e11f10e1599e787fd475be7658320ea063fe296f05eb5af0676dd3fbb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee9375e11f10e1599e787fd475be7658320ea063fe296f05eb5af0676dd3fbb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee9375e11f10e1599e787fd475be7658320ea063fe296f05eb5af0676dd3fbb2", kill_on_drop: false }`
[INFO] [stdout] ee9375e11f10e1599e787fd475be7658320ea063fe296f05eb5af0676dd3fbb2
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 233f2e6eda2b2a100cb11a5eaa82255e8349b1efb63b2fff40d48c1537114249
[INFO] running `Command { std: "docker" "start" "-a" "233f2e6eda2b2a100cb11a5eaa82255e8349b1efb63b2fff40d48c1537114249", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling noop_proc_macro v0.2.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking y4m v0.7.0
[INFO] [stderr]    Compiling paste v1.0.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling nasm-rs v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling av-scenechange v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling num-derive v0.3.2
[INFO] [stderr]     Checking v_frame v0.1.0
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/pred.rs:96:10
[INFO] [stdout]    |
[INFO] [stdout] 96 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/pred.rs:96:10
[INFO] [stdout]    |
[INFO] [stdout] 96 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "233f2e6eda2b2a100cb11a5eaa82255e8349b1efb63b2fff40d48c1537114249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "233f2e6eda2b2a100cb11a5eaa82255e8349b1efb63b2fff40d48c1537114249", kill_on_drop: false }`
[INFO] [stdout] 233f2e6eda2b2a100cb11a5eaa82255e8349b1efb63b2fff40d48c1537114249