[INFO] fetching crate mediasoup 0.0.1...
[INFO] checking mediasoup-0.0.1 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate mediasoup 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mediasoup 0.0.1 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mediasoup 0.0.1
[INFO] finished tweaking crates.io crate mediasoup 0.0.1
[INFO] tweaked toml for crates.io crate mediasoup 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a83c5af6c78a715f9ec23a3c7963a07f3355d0d2c9fc1ceda8368155297f377f
[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" "a83c5af6c78a715f9ec23a3c7963a07f3355d0d2c9fc1ceda8368155297f377f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a83c5af6c78a715f9ec23a3c7963a07f3355d0d2c9fc1ceda8368155297f377f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a83c5af6c78a715f9ec23a3c7963a07f3355d0d2c9fc1ceda8368155297f377f", kill_on_drop: false }`
[INFO] [stdout] a83c5af6c78a715f9ec23a3c7963a07f3355d0d2c9fc1ceda8368155297f377f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b3171382590b22fae7893c778f3fa9ae0b043e2e113a511a394584fca659187
[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" "3b3171382590b22fae7893c778f3fa9ae0b043e2e113a511a394584fca659187", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking async-task v4.0.2
[INFO] [stderr]     Checking futures-micro v0.3.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking async-oneshot v0.3.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking futures-lite v1.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking async-fs v1.3.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking nb-connect v1.0.1
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking async-io v1.1.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking async-process v1.0.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking mediasoup v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `modify`
[INFO] [stdout]    --> src/ortc.rs:854:77
[INFO] [stdout]     |
[INFO] [stdout] 854 | fn match_codecs(codec_a: CodecToMatch, codec_b: CodecToMatch, strict: bool, modify: bool) -> bool {
[INFO] [stdout]     |                                                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_modify`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `modify`
[INFO] [stdout]    --> src/ortc.rs:854:77
[INFO] [stdout]     |
[INFO] [stdout] 854 | fn match_codecs(codec_a: CodecToMatch, codec_b: CodecToMatch, strict: bool, modify: bool) -> bool {
[INFO] [stdout]     |                                                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_modify`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/messages.rs:246:19
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub(crate) fn new(listen_ip: TransportListenIp) -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/messages.rs:287:19
[INFO] [stdout]     |
[INFO] [stdout] 287 |     pub(crate) fn new(listen_ip: TransportListenIp) -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `payload_channel`
[INFO] [stdout]    --> src/router/consumer.rs:301:5
[INFO] [stdout]     |
[INFO] [stdout] 301 |     payload_channel: Channel,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/macros.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             pub(super) fn new() -> Self {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/router/observer.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | uuid_based_wrapper_type!(ObserverId);
[INFO] [stdout]    | ------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `payload_channel`
[INFO] [stdout]    --> src/router/producer.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |     payload_channel: Channel,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/messages.rs:246:19
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub(crate) fn new(listen_ip: TransportListenIp) -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/messages.rs:287:19
[INFO] [stdout]     |
[INFO] [stdout] 287 |     pub(crate) fn new(listen_ip: TransportListenIp) -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `payload_channel`
[INFO] [stdout]    --> src/router/consumer.rs:301:5
[INFO] [stdout]     |
[INFO] [stdout] 301 |     payload_channel: Channel,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/macros.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             pub(super) fn new() -> Self {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/router/observer.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | uuid_based_wrapper_type!(ObserverId);
[INFO] [stdout]    | ------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `payload_channel`
[INFO] [stdout]    --> src/router/producer.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |     payload_channel: Channel,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "3b3171382590b22fae7893c778f3fa9ae0b043e2e113a511a394584fca659187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b3171382590b22fae7893c778f3fa9ae0b043e2e113a511a394584fca659187", kill_on_drop: false }`
[INFO] [stdout] 3b3171382590b22fae7893c778f3fa9ae0b043e2e113a511a394584fca659187