[INFO] updating cached repository https://github.com/tsullens/arc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dd8a8a6cdb2ffe7c7b67f65b9a302a8232f09a18
[INFO] checking tsullens/arc against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsullens%2Farc" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tsullens/arc on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tsullens/arc
[INFO] finished tweaking git repo https://github.com/tsullens/arc
[INFO] tweaked toml for git repo https://github.com/tsullens/arc written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/tsullens/arc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 88864156a916ed585c90c2eb5933318d8200fb2d45a4cee5fc2be11dcca5d2fd
[INFO] running `"docker" "start" "-a" "88864156a916ed585c90c2eb5933318d8200fb2d45a4cee5fc2be11dcca5d2fd"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling serde v1.0.59
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]     Checking rand_core v0.2.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking rand v0.5.0
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde-hjson v0.8.1
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking config v0.8.0
[INFO] [stderr]     Checking arc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server.rs:52:59
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn new(stream: &'a TcpStream) -> Result<Self, Box<error::Error>> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn 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/server.rs:135:32
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/commands.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/database.rs:86:32
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/commands.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / lazy_static! {
[INFO] [stderr] 14 | |     /*
[INFO] [stderr] 15 | |      * I have no idea if this makes sense or if it is correct.
[INFO] [stderr] 16 | |      * I'm not actually sure if this is thread safe either...
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     };
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server.rs:52:59
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn new(stream: &'a TcpStream) -> Result<Self, Box<error::Error>> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn 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/server.rs:135:32
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/commands.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/database.rs:86:32
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/commands.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / lazy_static! {
[INFO] [stderr] 14 | |     /*
[INFO] [stderr] 15 | |      * I have no idea if this makes sense or if it is correct.
[INFO] [stderr] 16 | |      * I'm not actually sure if this is thread safe either...
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     };
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inc_key_count`
[INFO] [stderr]    --> src/server.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn inc_key_count(&self) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inc_key_count`
[INFO] [stderr]    --> src/server.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn inc_key_count(&self) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.10s
[INFO] running `"docker" "inspect" "88864156a916ed585c90c2eb5933318d8200fb2d45a4cee5fc2be11dcca5d2fd"`
[INFO] running `"docker" "rm" "-f" "88864156a916ed585c90c2eb5933318d8200fb2d45a4cee5fc2be11dcca5d2fd"`
[INFO] [stdout] 88864156a916ed585c90c2eb5933318d8200fb2d45a4cee5fc2be11dcca5d2fd