[INFO] crate rsef-rs 0.1.3 is already in cache
[INFO] checking rsef-rs-0.1.3 against try#7cb06892a23b4da510686618c8730f0b2e8bd952 for pr-66963
[INFO] extracting crate rsef-rs 0.1.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rsef-rs 0.1.3 on toolchain 7cb06892a23b4da510686618c8730f0b2e8bd952
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rsef-rs 0.1.3
[INFO] finished tweaking crates.io crate rsef-rs 0.1.3
[INFO] tweaked toml for crates.io crate rsef-rs 0.1.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7e275e4ed9d30fe90d34bf7ce16a4678a149cd2f3765f510e1ec6fa4cd47d5f4
[INFO] running `"docker" "start" "-a" "7e275e4ed9d30fe90d34bf7ce16a4678a149cd2f3765f510e1ec6fa4cd47d5f4"`
[INFO] [stderr]     Checking rsef-rs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 | ) -> Result<Box<dyn Read>, Box<std::error::Error>> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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/lib.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 | ) -> Result<Box<dyn Read>, Box<std::error::Error>> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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/lib.rs:318:35
[INFO] [stderr]     |
[INFO] [stderr] 318 |         let mut listings: Vec<Box<Read>> = Vec::with_capacity(5);
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.79s
[INFO] running `"docker" "inspect" "7e275e4ed9d30fe90d34bf7ce16a4678a149cd2f3765f510e1ec6fa4cd47d5f4"`
[INFO] running `"docker" "rm" "-f" "7e275e4ed9d30fe90d34bf7ce16a4678a149cd2f3765f510e1ec6fa4cd47d5f4"`
[INFO] [stdout] 7e275e4ed9d30fe90d34bf7ce16a4678a149cd2f3765f510e1ec6fa4cd47d5f4