[INFO] updating cached repository https://github.com/BlueSpaceCanary/rustbucket
[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] 85c3420c40f588bf7d66f6c69d6228eb6a134323
[INFO] checking BlueSpaceCanary/rustbucket against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueSpaceCanary%2Frustbucket" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlueSpaceCanary/rustbucket on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BlueSpaceCanary/rustbucket
[INFO] finished tweaking git repo https://github.com/BlueSpaceCanary/rustbucket
[INFO] tweaked toml for git repo https://github.com/BlueSpaceCanary/rustbucket written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/BlueSpaceCanary/rustbucket already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 76defe0b245512e834d72eb1bcee37903aa60f3908563a7573097f17d61e9520
[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" "76defe0b245512e834d72eb1bcee37903aa60f3908563a7573097f17d61e9520"`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]     Checking futures v0.1.27
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking ratelimit v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.20
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking openssl-sys v0.9.47
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mio v0.6.17
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking openssl v0.10.23
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking tokio-sync v0.1.5
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-mockstream v1.1.0
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.20
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]     Checking irc v0.13.6
[INFO] [stderr]     Checking diesel v1.4.3
[INFO] [stderr]     Checking rustbucket v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]   --> src/main.rs:20:17
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::sync::{Arc, Mutex};
[INFO] [stderr]    |                 ^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]   --> src/main.rs:20:17
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::sync::{Arc, Mutex};
[INFO] [stderr]    |                 ^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::hippocampus::Hippocampus`
[INFO] [stderr]  --> src/brain/responder.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::hippocampus::Hippocampus;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::hippocampus::Hippocampus`
[INFO] [stderr]  --> src/brain/responder.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::hippocampus::Hippocampus;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/brain/hippocampus.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn new(path: &'static str) -> Self {
[INFO] [stderr]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/brain/hippocampus.rs:17:22
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn recall(&self, key: &str) -> Option<Factoid> {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `factoid`
[INFO] [stderr]   --> src/brain/hippocampus.rs:21:21
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn learn(&self, factoid: &NewFactoid) -> Result<(), &'static str> {
[INFO] [stderr]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factoid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/brain/hippocampus.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn new(path: &'static str) -> Self {
[INFO] [stderr]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/brain/hippocampus.rs:17:22
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn recall(&self, key: &str) -> Option<Factoid> {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `factoid`
[INFO] [stderr]   --> src/brain/hippocampus.rs:21:21
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn learn(&self, factoid: &NewFactoid) -> Result<(), &'static str> {
[INFO] [stderr]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factoid`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_rng_seed`
[INFO] [stderr]   --> src/brain.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn set_rng_seed(&mut self, seed: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] running `"docker" "inspect" "76defe0b245512e834d72eb1bcee37903aa60f3908563a7573097f17d61e9520"`
[INFO] running `"docker" "rm" "-f" "76defe0b245512e834d72eb1bcee37903aa60f3908563a7573097f17d61e9520"`
[INFO] [stdout] 76defe0b245512e834d72eb1bcee37903aa60f3908563a7573097f17d61e9520