[INFO] cloning repository https://github.com/BlueSpaceCanary/rustbucket
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BlueSpaceCanary/rustbucket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueSpaceCanary%2Frustbucket", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueSpaceCanary%2Frustbucket'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d71ccca7c51e2c08536b4a421d9a59feccdad98c
[INFO] checking BlueSpaceCanary/rustbucket against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueSpaceCanary%2Frustbucket" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlueSpaceCanary/rustbucket on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-11/source/Cargo.toml
[INFO] crate git repo https://github.com/BlueSpaceCanary/rustbucket already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be12dfe5d3f3c31f88d0de55e9a47788030d52c7b12795b25edb2cc7077213b7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "be12dfe5d3f3c31f88d0de55e9a47788030d52c7b12795b25edb2cc7077213b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be12dfe5d3f3c31f88d0de55e9a47788030d52c7b12795b25edb2cc7077213b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be12dfe5d3f3c31f88d0de55e9a47788030d52c7b12795b25edb2cc7077213b7", kill_on_drop: false }`
[INFO] [stdout] be12dfe5d3f3c31f88d0de55e9a47788030d52c7b12795b25edb2cc7077213b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9ce9dc8bf7ee222d798e2fc08f491713147dd4501489c520cd6d4a54092968d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b9ce9dc8bf7ee222d798e2fc08f491713147dd4501489c520cd6d4a54092968d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.15
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking metrics-core v0.5.2
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[INFO] [stderr]     Checking nonzero_ext v0.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking getrandom v0.1.14
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[INFO] [stdout] warning: unused import: `super::hippocampus::Hippocampus`
[INFO] [stdout]  --> src/brain/responder.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::hippocampus::Hippocampus;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/brain/hippocampus.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn new(path: &'static str) -> Self {
[INFO] [stdout]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/brain/hippocampus.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn recall(&self, key: &str) -> Option<Factoid> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `factoid`
[INFO] [stdout]   --> src/brain/hippocampus.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn learn(&self, factoid: &NewFactoid) -> Result<(), &'static str> {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factoid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::hippocampus::Hippocampus`
[INFO] [stdout]  --> src/brain/responder.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::hippocampus::Hippocampus;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/brain/hippocampus.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn new(path: &'static str) -> Self {
[INFO] [stdout]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/brain/hippocampus.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn recall(&self, key: &str) -> Option<Factoid> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `factoid`
[INFO] [stdout]   --> src/brain/hippocampus.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn learn(&self, factoid: &NewFactoid) -> Result<(), &'static str> {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factoid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_rng_seed`
[INFO] [stdout]   --> src/brain.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn set_rng_seed(&mut self, seed: u64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 30s
[INFO] running `Command { std: "docker" "inspect" "b9ce9dc8bf7ee222d798e2fc08f491713147dd4501489c520cd6d4a54092968d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ce9dc8bf7ee222d798e2fc08f491713147dd4501489c520cd6d4a54092968d", kill_on_drop: false }`
[INFO] [stdout] b9ce9dc8bf7ee222d798e2fc08f491713147dd4501489c520cd6d4a54092968d