[INFO] cloning repository https://github.com/erik9631/icarus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/erik9631/icarus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferik9631%2Ficarus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferik9631%2Ficarus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c9481a66998709aca951d8d04ec9c54a343c21c
[INFO] checking erik9631/icarus against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferik9631%2Ficarus" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/erik9631/icarus
[INFO] finished tweaking git repo https://github.com/erik9631/icarus
[INFO] tweaked toml for git repo https://github.com/erik9631/icarus written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/erik9631/icarus on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/erik9631/icarus already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c5e02189fddbc62f6107ef902b8ddf8b1dbd527ed0a128190e8a91be0b0a755
[INFO] running `Command { std: "docker" "start" "-a" "1c5e02189fddbc62f6107ef902b8ddf8b1dbd527ed0a128190e8a91be0b0a755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c5e02189fddbc62f6107ef902b8ddf8b1dbd527ed0a128190e8a91be0b0a755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c5e02189fddbc62f6107ef902b8ddf8b1dbd527ed0a128190e8a91be0b0a755", kill_on_drop: false }`
[INFO] [stdout] 1c5e02189fddbc62f6107ef902b8ddf8b1dbd527ed0a128190e8a91be0b0a755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4a887ab97c89c695d0eb47222129da6346cf5271125f30173d703cf02fad2a6
[INFO] running `Command { std: "docker" "start" "-a" "d4a887ab97c89c695d0eb47222129da6346cf5271125f30173d703cf02fad2a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking eta-algorithms v1.7.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking async_prototype v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/executor.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         unsafe {
[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/executor.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/executor.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let mut thread_wakers = Vec::with_capacity(thread_count);
[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: field `stolen` is never read
[INFO] [stdout]   --> src/executor.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | struct Task {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 59 |     stolen: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `steal` is never used
[INFO] [stdout]   --> src/executor.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl Task {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 63 |     pub fn steal(mut self) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/executor.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         unsafe {
[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/executor.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/executor.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let mut thread_wakers = Vec::with_capacity(thread_count);
[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: field `stolen` is never read
[INFO] [stdout]   --> src/executor.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | struct Task {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 59 |     stolen: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `steal` is never used
[INFO] [stdout]   --> src/executor.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl Task {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 63 |     pub fn steal(mut self) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `executor`
[INFO] [stdout]  --> src/main.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn async_function(executor: &Executor) {
[INFO] [stdout]   |                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_executor`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `executor`
[INFO] [stdout]  --> src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn async_function2(executor: &Executor) {
[INFO] [stdout]   |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_executor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `executor`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn async_function_task(executor: &Executor) {
[INFO] [stdout]    |                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_executor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `executor`
[INFO] [stdout]  --> src/main.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn async_function(executor: &Executor) {
[INFO] [stdout]   |                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_executor`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `executor`
[INFO] [stdout]  --> src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn async_function2(executor: &Executor) {
[INFO] [stdout]   |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_executor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `executor`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn async_function_task(executor: &Executor) {
[INFO] [stdout]    |                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_executor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "d4a887ab97c89c695d0eb47222129da6346cf5271125f30173d703cf02fad2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a887ab97c89c695d0eb47222129da6346cf5271125f30173d703cf02fad2a6", kill_on_drop: false }`
[INFO] [stdout] d4a887ab97c89c695d0eb47222129da6346cf5271125f30173d703cf02fad2a6
