[INFO] fetching crate wybr 0.0.2...
[INFO] checking wybr-0.0.2 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate wybr 0.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wybr 0.0.2 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wybr 0.0.2
[INFO] finished tweaking crates.io crate wybr 0.0.2
[INFO] tweaked toml for crates.io crate wybr 0.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eaf7538e77f1056a0cd37021d7c1f122bc6a2b37692c426cabfbd9fecd07b720
[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" "eaf7538e77f1056a0cd37021d7c1f122bc6a2b37692c426cabfbd9fecd07b720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaf7538e77f1056a0cd37021d7c1f122bc6a2b37692c426cabfbd9fecd07b720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf7538e77f1056a0cd37021d7c1f122bc6a2b37692c426cabfbd9fecd07b720", kill_on_drop: false }`
[INFO] [stdout] eaf7538e77f1056a0cd37021d7c1f122bc6a2b37692c426cabfbd9fecd07b720
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b16e4930732bbd325e70fccc581ac6126d7d2da1acbb86e96307ba358192a933
[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" "b16e4930732bbd325e70fccc581ac6126d7d2da1acbb86e96307ba358192a933", kill_on_drop: false }`
[INFO] [stderr]     Checking wybr v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/blt_reader.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 |     stream: &'a mut BufRead,
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[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/io/blt_reader.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(stream: &mut BufRead) -> BltReader {
[INFO] [stdout]    |                             ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/blt_reader.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 |     stream: &'a mut BufRead,
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[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/io/blt_reader.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(stream: &mut BufRead) -> BltReader {
[INFO] [stdout]    |                             ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `transfer`
[INFO] [stdout]   --> src/methods/meek.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     transfer: Transfer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `transfer`
[INFO] [stdout]   --> src/methods/meek.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     transfer: Transfer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "b16e4930732bbd325e70fccc581ac6126d7d2da1acbb86e96307ba358192a933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b16e4930732bbd325e70fccc581ac6126d7d2da1acbb86e96307ba358192a933", kill_on_drop: false }`
[INFO] [stdout] b16e4930732bbd325e70fccc581ac6126d7d2da1acbb86e96307ba358192a933