[INFO] fetching crate nakama-rs 0.1.1...
[INFO] checking nakama-rs-0.1.1 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate nakama-rs 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nakama-rs 0.1.1 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nakama-rs 0.1.1
[INFO] finished tweaking crates.io crate nakama-rs 0.1.1
[INFO] tweaked toml for crates.io crate nakama-rs 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate nakama-rs 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sapp-jsutils v0.1.5
[INFO] [stderr]   Downloaded qws v0.7.9
[INFO] [stderr]   Downloaded nanoserde v0.1.24
[INFO] [stderr]   Downloaded js-sys v0.3.49
[INFO] [stderr]   Downloaded nanoserde-derive v0.1.16
[INFO] [stderr]   Downloaded web-sys v0.3.49
[INFO] [stderr]   Downloaded ureq v2.0.2
[INFO] [stderr]   Downloaded quad-net v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e00b2ec279dd4595a80b4a1a15bb1846ba629e92477d2beeafeeb2fbdf2fb4d
[INFO] running `Command { std: "docker" "start" "-a" "4e00b2ec279dd4595a80b4a1a15bb1846ba629e92477d2beeafeeb2fbdf2fb4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e00b2ec279dd4595a80b4a1a15bb1846ba629e92477d2beeafeeb2fbdf2fb4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e00b2ec279dd4595a80b4a1a15bb1846ba629e92477d2beeafeeb2fbdf2fb4d", kill_on_drop: false }`
[INFO] [stdout] 4e00b2ec279dd4595a80b4a1a15bb1846ba629e92477d2beeafeeb2fbdf2fb4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08358df2ef9332bd8ade34ce2d6f8f99bd22efc2bc206208807e88144a87f9f1
[INFO] running `Command { std: "docker" "start" "-a" "08358df2ef9332bd8ade34ce2d6f8f99bd22efc2bc206208807e88144a87f9f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling nanoserde-derive v0.1.16
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking nanoserde v0.1.24
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]     Checking qws v0.7.9
[INFO] [stderr]     Checking ureq v2.0.2
[INFO] [stderr]     Checking quad-net v0.1.1
[INFO] [stderr]     Checking nakama-rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matchmaker.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |         let mut properties = self
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/matchmaker.rs:168:13
[INFO] [stdout]     |
[INFO] [stdout] 168 |         let mut properties = self
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.79s
[INFO] running `Command { std: "docker" "inspect" "08358df2ef9332bd8ade34ce2d6f8f99bd22efc2bc206208807e88144a87f9f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08358df2ef9332bd8ade34ce2d6f8f99bd22efc2bc206208807e88144a87f9f1", kill_on_drop: false }`
[INFO] [stdout] 08358df2ef9332bd8ade34ce2d6f8f99bd22efc2bc206208807e88144a87f9f1