[INFO] cloning repository https://github.com/0xpantera/a-runtime
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xpantera/a-runtime" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xpantera%2Fa-runtime", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xpantera%2Fa-runtime'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f441332c3862745e7b0acc5df87980db4b6b141
[INFO] checking 0xpantera/a-runtime/7f441332c3862745e7b0acc5df87980db4b6b141 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xpantera%2Fa-runtime" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xpantera/a-runtime on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0xpantera/a-runtime
[INFO] finished tweaking git repo https://github.com/0xpantera/a-runtime
[INFO] tweaked toml for git repo https://github.com/0xpantera/a-runtime written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/0xpantera/a-runtime 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88ab7cb0e74ac048c61bfaff1f5c65a6595b2e497cc9c6958b304c41efb95e21
[INFO] running `Command { std: "docker" "start" "-a" "88ab7cb0e74ac048c61bfaff1f5c65a6595b2e497cc9c6958b304c41efb95e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88ab7cb0e74ac048c61bfaff1f5c65a6595b2e497cc9c6958b304c41efb95e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88ab7cb0e74ac048c61bfaff1f5c65a6595b2e497cc9c6958b304c41efb95e21", kill_on_drop: false }`
[INFO] [stdout] 88ab7cb0e74ac048c61bfaff1f5c65a6595b2e497cc9c6958b304c41efb95e21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5917fa3265d07f5568a33f9b2853e19163b488c6b84323f51ccef6611c92b3be
[INFO] running `Command { std: "docker" "start" "-a" "5917fa3265d07f5568a33f9b2853e19163b488c6b84323f51ccef6611c92b3be", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling cc v1.1.7
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking mio v1.0.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tinyvec v1.8.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking indexmap v2.3.0
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking tokio v1.39.2
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking hyper v0.14.30
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking a-runtime v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `spawn`
[INFO] [stdout]  --> src/runtime.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use executor::{spawn, Executor};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spawn`
[INFO] [stdout]  --> src/runtime.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use executor::{spawn, Executor};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http` is never constructed
[INFO] [stdout]   --> src/http.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Http;
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get` is never used
[INFO] [stdout]   --> src/http.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Http {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 22 |     pub fn get(path: &str) -> impl Future<Output = String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/http.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl HttpGetFuture {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 35 |     fn new(path: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next_id` is never read
[INFO] [stdout]   --> src/runtime/reactor.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Reactor {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     next_id: AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_id` is never used
[INFO] [stdout]   --> src/runtime/reactor.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl Reactor {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn next_id(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http` is never constructed
[INFO] [stdout]   --> src/http.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Http;
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get` is never used
[INFO] [stdout]   --> src/http.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Http {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 22 |     pub fn get(path: &str) -> impl Future<Output = String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/http.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl HttpGetFuture {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 35 |     fn new(path: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next_id` is never read
[INFO] [stdout]   --> src/runtime/reactor.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Reactor {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     next_id: AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_id` is never used
[INFO] [stdout]   --> src/runtime/reactor.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl Reactor {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn next_id(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.81s
[INFO] running `Command { std: "docker" "inspect" "5917fa3265d07f5568a33f9b2853e19163b488c6b84323f51ccef6611c92b3be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5917fa3265d07f5568a33f9b2853e19163b488c6b84323f51ccef6611c92b3be", kill_on_drop: false }`
[INFO] [stdout] 5917fa3265d07f5568a33f9b2853e19163b488c6b84323f51ccef6611c92b3be