[INFO] fetching crate limon-core 0.2.5...
[INFO] checking limon-core-0.2.5 against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] extracting crate limon-core 0.2.5 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate limon-core 0.2.5
[INFO] finished tweaking crates.io crate limon-core 0.2.5
[INFO] tweaked toml for crates.io crate limon-core 0.2.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate limon-core 0.2.5 on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate limon-core 0.2.5 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded httpmock v0.8.0-alpha.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2909a97b14a7c837efdde823099208a08e5e51a7181357cf4e2065113de945d
[INFO] running `Command { std: "docker" "start" "-a" "e2909a97b14a7c837efdde823099208a08e5e51a7181357cf4e2065113de945d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2909a97b14a7c837efdde823099208a08e5e51a7181357cf4e2065113de945d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2909a97b14a7c837efdde823099208a08e5e51a7181357cf4e2065113de945d", kill_on_drop: false }`
[INFO] [stdout] e2909a97b14a7c837efdde823099208a08e5e51a7181357cf4e2065113de945d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64010c9d08f5a8a649f8ea6aec80a7a2084d44b38ca664c5e4a09c2d7ad9045a
[INFO] running `Command { std: "docker" "start" "-a" "64010c9d08f5a8a649f8ea6aec80a7a2084d44b38ca664c5e4a09c2d7ad9045a", kill_on_drop: false }`
[INFO] [stderr]    Compiling openssl-src v300.5.3+3.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking pnet_base v0.34.0
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.11+1.64.0
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking pnet_sys v0.34.0
[INFO] [stderr]    Compiling curl-sys v0.4.83+curl-8.15.0
[INFO] [stderr]     Checking unicode-normalization v0.1.24
[INFO] [stderr]     Checking async-signal v0.2.13
[INFO] [stderr]    Compiling async-trait v0.1.89
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[INFO] [stderr]     Checking unicode-bidi v0.3.18
[INFO] [stderr]     Checking async-process v2.5.0
[INFO] [stderr]     Checking pnet_macros_support v0.34.0
[INFO] [stderr]    Compiling enum-as-inner v0.6.1
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.109
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[INFO] [stderr]     Checking serde_json v1.0.145
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[INFO] [stderr]     Checking hyper-util v0.1.17
[INFO] [stderr]     Checking httpmock v0.8.0-alpha.1
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]     Checking limon-core v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `opts` is assigned to, but never used
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 |   let mut opts = ResolverOpts::default();
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_opts` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 15 |   opts.cache_size = 0;
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   opts.positive_min_ttl = Some(Duration::ZERO);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 |   opts.positive_max_ttl = Some(Duration::ZERO);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   opts.negative_min_ttl = Some(Duration::ZERO);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |   opts.negative_max_ttl = Some(Duration::ZERO);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `opts` is assigned to, but never used
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 |   let mut opts = ResolverOpts::default();
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_opts` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 15 |   opts.cache_size = 0;
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   opts.positive_min_ttl = Some(Duration::ZERO);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 |   opts.positive_max_ttl = Some(Duration::ZERO);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   opts.negative_min_ttl = Some(Duration::ZERO);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opts` is never read
[INFO] [stdout]   --> src/monitor/collectors/ping.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |   opts.negative_max_ttl = Some(Duration::ZERO);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 41s
[INFO] running `Command { std: "docker" "inspect" "64010c9d08f5a8a649f8ea6aec80a7a2084d44b38ca664c5e4a09c2d7ad9045a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64010c9d08f5a8a649f8ea6aec80a7a2084d44b38ca664c5e4a09c2d7ad9045a", kill_on_drop: false }`
[INFO] [stdout] 64010c9d08f5a8a649f8ea6aec80a7a2084d44b38ca664c5e4a09c2d7ad9045a