[INFO] fetching crate stainless_ffmpeg 0.2.3...
[INFO] checking stainless_ffmpeg-0.2.3 against beta for pr-78714
[INFO] extracting crate stainless_ffmpeg 0.2.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate stainless_ffmpeg 0.2.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stainless_ffmpeg 0.2.3
[INFO] finished tweaking crates.io crate stainless_ffmpeg 0.2.3
[INFO] tweaked toml for crates.io crate stainless_ffmpeg 0.2.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate stainless_ffmpeg 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c40ceb3d5853e2a226a0f81458086f4fd9cd4b5d5c4cb67c1d1b8f83665eab49
[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" "c40ceb3d5853e2a226a0f81458086f4fd9cd4b5d5c4cb67c1d1b8f83665eab49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c40ceb3d5853e2a226a0f81458086f4fd9cd4b5d5c4cb67c1d1b8f83665eab49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c40ceb3d5853e2a226a0f81458086f4fd9cd4b5d5c4cb67c1d1b8f83665eab49", kill_on_drop: false }`
[INFO] [stdout] c40ceb3d5853e2a226a0f81458086f4fd9cd4b5d5c4cb67c1d1b8f83665eab49
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26c1389fc3cb0fa9954d774bc31cbf8efeb2c46094a7111404bff3bcecffc846
[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" "26c1389fc3cb0fa9954d774bc31cbf8efeb2c46094a7111404bff3bcecffc846", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling bindgen v0.53.2
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]    Compiling stainless-ffmpeg-sys v4.2.3
[INFO] [stderr]     Checking stainless_ffmpeg v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]    --> src/probe/deep.rs:215:7
[INFO] [stdout]     |
[INFO] [stdout] 215 |   use serde_json;
[INFO] [stdout]     |       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "26c1389fc3cb0fa9954d774bc31cbf8efeb2c46094a7111404bff3bcecffc846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26c1389fc3cb0fa9954d774bc31cbf8efeb2c46094a7111404bff3bcecffc846", kill_on_drop: false }`
[INFO] [stdout] 26c1389fc3cb0fa9954d774bc31cbf8efeb2c46094a7111404bff3bcecffc846