[INFO] fetching crate functiontrace-server 0.4.0...
[INFO] checking functiontrace-server-0.4.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate functiontrace-server 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate functiontrace-server 0.4.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate functiontrace-server 0.4.0
[INFO] finished tweaking crates.io crate functiontrace-server 0.4.0
[INFO] tweaked toml for crates.io crate functiontrace-server 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate functiontrace-server 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp-serde v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 248e80dc96188eba0a366ef65d8f415d1733d792e541bf360e006455dacfcecd
[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" "248e80dc96188eba0a366ef65d8f415d1733d792e541bf360e006455dacfcecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "248e80dc96188eba0a366ef65d8f415d1733d792e541bf360e006455dacfcecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "248e80dc96188eba0a366ef65d8f415d1733d792e541bf360e006455dacfcecd", kill_on_drop: false }`
[INFO] [stdout] 248e80dc96188eba0a366ef65d8f415d1733d792e541bf360e006455dacfcecd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "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] 07d496da730a598fc4010ac94bf18488d343960e803b305cb21f3daa9653924b
[INFO] running `Command { std: "docker" "start" "-a" "07d496da730a598fc4010ac94bf18488d343960e803b305cb21f3daa9653924b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling argh_shared v0.1.4
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]     Checking argh v0.1.4
[INFO] [stderr]     Checking serde v1.0.118
[INFO] [stderr]     Checking rmp-serde v0.15.0
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Checking functiontrace-server v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `GarbageCollection`
[INFO] [stdout]   --> src/profile_generator.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     GarbageCollection,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GarbageCollection`
[INFO] [stdout]   --> src/profile_generator.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     GarbageCollection,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 33.34s
[INFO] running `Command { std: "docker" "inspect" "07d496da730a598fc4010ac94bf18488d343960e803b305cb21f3daa9653924b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d496da730a598fc4010ac94bf18488d343960e803b305cb21f3daa9653924b", kill_on_drop: false }`
[INFO] [stdout] 07d496da730a598fc4010ac94bf18488d343960e803b305cb21f3daa9653924b
