[INFO] fetching crate socket_io_server 0.1.0...
[INFO] checking socket_io_server-0.1.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate socket_io_server 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate socket_io_server 0.1.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate socket_io_server 0.1.0
[INFO] finished tweaking crates.io crate socket_io_server 0.1.0
[INFO] tweaked toml for crates.io crate socket_io_server 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10762d70c588941f17cab7bc98bc01cd1d063d1f9e0d5ce77264933bc19e53b0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "10762d70c588941f17cab7bc98bc01cd1d063d1f9e0d5ce77264933bc19e53b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10762d70c588941f17cab7bc98bc01cd1d063d1f9e0d5ce77264933bc19e53b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10762d70c588941f17cab7bc98bc01cd1d063d1f9e0d5ce77264933bc19e53b0", kill_on_drop: false }`
[INFO] [stdout] 10762d70c588941f17cab7bc98bc01cd1d063d1f9e0d5ce77264933bc19e53b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49e329407073ef3a7fdcaa9721d8c7fe10ee24fc648652f0e0250caf884879db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "49e329407073ef3a7fdcaa9721d8c7fe10ee24fc648652f0e0250caf884879db", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
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[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking sha-1 v0.9.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking headers v0.3.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr]     Checking engine_io_parser v0.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tungstenite v0.11.0
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking engine_io_server v0.1.0
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking warp v0.2.5
[INFO] [stderr]     Checking socket_io_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `adapter`
[INFO] [stdout]  --> src/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     adapter: A,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `adapter`
[INFO] [stdout]  --> src/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     adapter: A,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.96s
[INFO] running `Command { std: "docker" "inspect" "49e329407073ef3a7fdcaa9721d8c7fe10ee24fc648652f0e0250caf884879db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e329407073ef3a7fdcaa9721d8c7fe10ee24fc648652f0e0250caf884879db", kill_on_drop: false }`
[INFO] [stdout] 49e329407073ef3a7fdcaa9721d8c7fe10ee24fc648652f0e0250caf884879db