[INFO] crate recoreco 0.1.9 is already in cache
[INFO] checking recoreco-0.1.9 against try#ba14a92a10441c4b839ce71e6ef5f7a48bbff18f for prs-64470-and-65389
[INFO] extracting crate recoreco 0.1.9 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate recoreco 0.1.9 on toolchain ba14a92a10441c4b839ce71e6ef5f7a48bbff18f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate recoreco 0.1.9
[INFO] finished tweaking crates.io crate recoreco 0.1.9
[INFO] tweaked toml for crates.io crate recoreco 0.1.9 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "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] c183063878e4963b572d9a5b6877ff1bde5f543e34a9e7a06f44ebf5ced28421
[INFO] running `"docker" "start" "-a" "c183063878e4963b572d9a5b6877ff1bde5f543e34a9e7a06f44ebf5ced28421"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking recoreco v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:133:10
[INFO] [stderr]     |
[INFO] [stderr] 133 | ) -> Box<Write>
[INFO] [stderr]     |          ^^^^^ help: use `dyn`: `dyn 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/io.rs:133:10
[INFO] [stderr]     |
[INFO] [stderr] 133 | ) -> Box<Write>
[INFO] [stderr]     |          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:184:17
[INFO] [stderr]     |
[INFO] [stderr] 184 |             let mut user_history = &mut samples_of_a[user_idx];
[INFO] [stderr]     |                 ----^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]    --> src/lib.rs:184:17
[INFO] [stderr]     |
[INFO] [stderr] 184 |             let mut user_history = &mut samples_of_a[user_idx];
[INFO] [stderr]     |                 ----^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/indicators.rs:97:21
[INFO] [stderr]    |
[INFO] [stderr] 97 | ) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn 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/bin/indicators.rs:97:21
[INFO] [stderr]    |
[INFO] [stderr] 97 | ) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `"docker" "inspect" "c183063878e4963b572d9a5b6877ff1bde5f543e34a9e7a06f44ebf5ced28421"`
[INFO] running `"docker" "rm" "-f" "c183063878e4963b572d9a5b6877ff1bde5f543e34a9e7a06f44ebf5ced28421"`
[INFO] [stdout] c183063878e4963b572d9a5b6877ff1bde5f543e34a9e7a06f44ebf5ced28421