[INFO] fetching crate bottles 0.1.1...
[INFO] checking bottles-0.1.1 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate bottles 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate bottles 0.1.1 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de77ccc7c774c3d4c444799ef8089340c9452c617cd9c91e5c2b4500085cbb97
[INFO] running `Command { std: "docker" "start" "-a" "de77ccc7c774c3d4c444799ef8089340c9452c617cd9c91e5c2b4500085cbb97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de77ccc7c774c3d4c444799ef8089340c9452c617cd9c91e5c2b4500085cbb97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de77ccc7c774c3d4c444799ef8089340c9452c617cd9c91e5c2b4500085cbb97", kill_on_drop: false }`
[INFO] [stdout] de77ccc7c774c3d4c444799ef8089340c9452c617cd9c91e5c2b4500085cbb97
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf2de670b50a176210572600f5d9d662ef293b47aaaccc45a942acff86b6a530
[INFO] running `Command { std: "docker" "start" "-a" "bf2de670b50a176210572600f5d9d662ef293b47aaaccc45a942acff86b6a530", kill_on_drop: false }`
[INFO] [stderr]     Checking bottles v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `subs`
[INFO] [stdout]   --> src/dispatcher.rs:67:17
[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: unused variable: `subs`
[INFO] [stdout]   --> src/dispatcher.rs:67:17
[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: 10 warnings emitted
[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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "bf2de670b50a176210572600f5d9d662ef293b47aaaccc45a942acff86b6a530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf2de670b50a176210572600f5d9d662ef293b47aaaccc45a942acff86b6a530", kill_on_drop: false }`
[INFO] [stdout] bf2de670b50a176210572600f5d9d662ef293b47aaaccc45a942acff86b6a530