[INFO] updating cached repository https://github.com/cmusser/boss
[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] f844a657fece459d216150c0527459a71077e4de
[INFO] checking cmusser/boss against master#eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc for pr-69560
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmusser%2Fboss" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cmusser/boss on toolchain eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cmusser/boss
[INFO] finished tweaking git repo https://github.com/cmusser/boss
[INFO] tweaked toml for git repo https://github.com/cmusser/boss written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cmusser/boss already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "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] 4060650b83a55eb2c9a75a371a2305386c8f08a596aa97d6de7cab4047bd90c8
[INFO] running `"docker" "start" "-a" "4060650b83a55eb2c9a75a371a2305386c8f08a596aa97d6de7cab4047bd90c8"`
[INFO] [stderr]     Checking arc-swap v0.3.6
[INFO] [stderr]     Checking daemonize v0.3.0
[INFO] [stderr]     Checking serde_yaml v0.8.8
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking hyper v0.12.18
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking signal-hook v0.1.6
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking tokio-process v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking boss v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/data.rs:27:79
[INFO] [stderr]    |
[INFO] [stderr] 27 |             Err(err) => Err(format!("couldn't open {} ({})", config_path, err.description())),
[INFO] [stderr]    |                                                                               ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/data.rs:31:86
[INFO] [stderr]    |
[INFO] [stderr] 31 |                     Err(err) => Err(format!("couldn't read {}: {}", config_path, err.description())),
[INFO] [stderr]    |                                                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/data.rs:38:59
[INFO] [stderr]    |
[INFO] [stderr] 38 | ...                   Err(e) => Err(format!("{}", e.description()))
[INFO] [stderr]    |                                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/data.rs:27:79
[INFO] [stderr]    |
[INFO] [stderr] 27 |             Err(err) => Err(format!("couldn't open {} ({})", config_path, err.description())),
[INFO] [stderr]    |                                                                               ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/data.rs:31:86
[INFO] [stderr]    |
[INFO] [stderr] 31 |                     Err(err) => Err(format!("couldn't read {}: {}", config_path, err.description())),
[INFO] [stderr]    |                                                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/data.rs:38:59
[INFO] [stderr]    |
[INFO] [stderr] 38 | ...                   Err(e) => Err(format!("{}", e.description()))
[INFO] [stderr]    |                                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.42s
[INFO] running `"docker" "inspect" "4060650b83a55eb2c9a75a371a2305386c8f08a596aa97d6de7cab4047bd90c8"`
[INFO] running `"docker" "rm" "-f" "4060650b83a55eb2c9a75a371a2305386c8f08a596aa97d6de7cab4047bd90c8"`
[INFO] [stdout] 4060650b83a55eb2c9a75a371a2305386c8f08a596aa97d6de7cab4047bd90c8