[INFO] fetching crate rsst 0.1.0...
[INFO] checking rsst-0.1.0 against master#446e5e57b667c841ba3ebb4b41b44fb98bd3af4b for pr-65294
[INFO] extracting crate rsst 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rsst 0.1.0 on toolchain 446e5e57b667c841ba3ebb4b41b44fb98bd3af4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rsst 0.1.0
[INFO] finished tweaking crates.io crate rsst 0.1.0
[INFO] tweaked toml for crates.io crate rsst 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9493a7b60f714c4853c8434c130fa1670c3ab098560e1a7b3a25b5fda24fff0d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "9493a7b60f714c4853c8434c130fa1670c3ab098560e1a7b3a25b5fda24fff0d"`
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]    Compiling string_cache v0.7.4
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking quick-xml v0.14.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking html5ever v0.22.5
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking rss v1.8.0
[INFO] [stderr]     Checking rsst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/downstream.rs:172:39
[INFO] [stderr]     |
[INFO] [stderr] 172 |     pub fn serialize(&self, out: &mut io::Write) {
[INFO] [stderr]     |                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/downstream.rs:172:39
[INFO] [stderr]     |
[INFO] [stderr] 172 |     pub fn serialize(&self, out: &mut io::Write) {
[INFO] [stderr]     |                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.22s
[INFO] running `"docker" "inspect" "9493a7b60f714c4853c8434c130fa1670c3ab098560e1a7b3a25b5fda24fff0d"`
[INFO] running `"docker" "rm" "-f" "9493a7b60f714c4853c8434c130fa1670c3ab098560e1a7b3a25b5fda24fff0d"`
[INFO] [stdout] 9493a7b60f714c4853c8434c130fa1670c3ab098560e1a7b3a25b5fda24fff0d