[INFO] fetching crate coyote 0.1.1...
[INFO] checking coyote-0.1.1 against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] extracting crate coyote 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate coyote 0.1.1 on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coyote 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate coyote 0.1.1
[INFO] tweaked toml for crates.io crate coyote 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate coyote 0.1.1 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" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a950dce4d02f4dcda05e2ae2d74a70454a1e6e156b163683f7cd1f2ebbedd83
[INFO] running `Command { std: "docker" "start" "-a" "4a950dce4d02f4dcda05e2ae2d74a70454a1e6e156b163683f7cd1f2ebbedd83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a950dce4d02f4dcda05e2ae2d74a70454a1e6e156b163683f7cd1f2ebbedd83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a950dce4d02f4dcda05e2ae2d74a70454a1e6e156b163683f7cd1f2ebbedd83", kill_on_drop: false }`
[INFO] [stdout] 4a950dce4d02f4dcda05e2ae2d74a70454a1e6e156b163683f7cd1f2ebbedd83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5954effa71bdaa5fade09a09f9bf2d296486fbcac9b030bb4bcf0bdb9f8acf9d
[INFO] running `Command { std: "docker" "start" "-a" "5954effa71bdaa5fade09a09f9bf2d296486fbcac9b030bb4bcf0bdb9f8acf9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_derive v1.0.136
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[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking bytes v1.1.0
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[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking itoa v1.0.1
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[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]    Compiling aho-corasick v0.7.18
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[INFO] [stderr]    Compiling darling_core v0.13.1
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[INFO] [stderr]    Compiling darling_macro v0.13.1
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[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling serde_with_macros v1.5.1
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-util v0.6.9
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[INFO] [stderr]     Checking serde_with v1.12.0
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[INFO] [stderr]     Checking x509-parser v0.12.0
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[INFO] [stderr]     Checking tokio-postgres v0.7.5
[INFO] [stderr]    Compiling refinery-core v0.8.4
[INFO] [stderr]     Checking bollard-stubs v1.41.0
[INFO] [stderr]    Compiling refinery-macros v0.8.4
[INFO] [stderr]     Checking trust-dns-client v0.20.4
[INFO] [stderr]     Checking deadpool-postgres v0.10.1
[INFO] [stderr]     Checking refinery v0.8.4
[INFO] [stderr]     Checking hyperlocal v0.8.0
[INFO] [stderr]     Checking ratpack v0.1.3
[INFO] [stderr]     Checking coyote v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/acme/handlers/order.rs:262:27
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 for id in id.identifier {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 while let Some(id) = id.identifier {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~  ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 if let Some(id) = id.identifier {
[INFO] [stdout]     |                 ~~~~~~~~~~~~  ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bollard v0.11.1
[INFO] [stderr]     Checking eggshell v0.1.3
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/acme/handlers/nonce.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         drop(headers);
[INFO] [stdout]    |         ^^^^^-------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&HeaderMap`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/acme/handlers/nonce.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         drop(headers);
[INFO] [stdout]     |         ^^^^^-------^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&HeaderMap`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/acme/handlers/nonce.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |                 drop(headers);
[INFO] [stdout]     |                 ^^^^^-------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&HeaderMap`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/acme/handlers/order.rs:262:27
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 for id in id.identifier {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 while let Some(id) = id.identifier {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~  ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 if let Some(id) = id.identifier {
[INFO] [stdout]     |                 ~~~~~~~~~~~~  ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.22s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "5954effa71bdaa5fade09a09f9bf2d296486fbcac9b030bb4bcf0bdb9f8acf9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5954effa71bdaa5fade09a09f9bf2d296486fbcac9b030bb4bcf0bdb9f8acf9d", kill_on_drop: false }`
[INFO] [stdout] 5954effa71bdaa5fade09a09f9bf2d296486fbcac9b030bb4bcf0bdb9f8acf9d
