[INFO] fetching crate bottles 0.1.1...
[INFO] checking bottles-0.1.1 against beta for pr-78714
[INFO] extracting crate bottles 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate bottles 0.1.1 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 crates.io crate bottles 0.1.1
[INFO] finished tweaking crates.io crate bottles 0.1.1
[INFO] tweaked toml for crates.io crate bottles 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 15f1b60b08dd153f4f60f49267921e6d2789510d68e4f930bf4265128d547dca
[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" "15f1b60b08dd153f4f60f49267921e6d2789510d68e4f930bf4265128d547dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15f1b60b08dd153f4f60f49267921e6d2789510d68e4f930bf4265128d547dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f1b60b08dd153f4f60f49267921e6d2789510d68e4f930bf4265128d547dca", kill_on_drop: false }`
[INFO] [stdout] 15f1b60b08dd153f4f60f49267921e6d2789510d68e4f930bf4265128d547dca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 36dd9627122d634dfe347c9f9b0d669fb42c8aeb635b8ce84e0e1c1b354a985b
[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" "36dd9627122d634dfe347c9f9b0d669fb42c8aeb635b8ce84e0e1c1b354a985b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking bottles v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `subs`
[INFO] [stdout]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dispatcher.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut wrapped = move |msg: *const ()| {
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dispatcher.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut subscribers = self.map.get_mut(&TypeId::of::<T>())
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dispatcher.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let untyped = unsafe { Rc::into_raw(Rc::clone(&msg)) };
[INFO] [stdout]    |                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/queue.rs:72:24
[INFO] [stdout]    |
[INFO] [stdout] 72 |             queue.push(unsafe { Rc::into_raw(msg) } as *const ());
[INFO] [stdout]    |                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subs`
[INFO] [stdout]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dispatcher.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut subs = match self.map.get_mut(&TypeId::of::<T>()) {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dispatcher.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut wrapped = move |msg: *const ()| {
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dispatcher.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut subscribers = self.map.get_mut(&TypeId::of::<T>())
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dispatcher.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 |             let mut pop = move |msg| {
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/dispatcher.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let untyped = unsafe { Rc::into_raw(Rc::clone(&msg)) };
[INFO] [stdout]    |                           ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/queue.rs:72:24
[INFO] [stdout]    |
[INFO] [stdout] 72 |             queue.push(unsafe { Rc::into_raw(msg) } as *const ());
[INFO] [stdout]    |                        ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Empty`
[INFO] [stdout]    --> src/dispatcher.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     struct Empty {}
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Farawell`
[INFO] [stdout]    --> src/dispatcher.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 |     struct Farawell {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Context`
[INFO] [stdout]    --> src/dispatcher.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     struct Context {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "36dd9627122d634dfe347c9f9b0d669fb42c8aeb635b8ce84e0e1c1b354a985b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36dd9627122d634dfe347c9f9b0d669fb42c8aeb635b8ce84e0e1c1b354a985b", kill_on_drop: false }`
[INFO] [stdout] 36dd9627122d634dfe347c9f9b0d669fb42c8aeb635b8ce84e0e1c1b354a985b