[INFO] fetching crate examples 0.4.0...
[INFO] checking examples-0.4.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate examples 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate examples 0.4.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate examples 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate examples 0.4.0
[INFO] tweaked toml for crates.io crate examples 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate examples 0.4.0 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82069da87ae386e29359121cd29a75b9f06df77e408680b7661fe637824ac4d8
[INFO] running `Command { std: "docker" "start" "-a" "82069da87ae386e29359121cd29a75b9f06df77e408680b7661fe637824ac4d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82069da87ae386e29359121cd29a75b9f06df77e408680b7661fe637824ac4d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82069da87ae386e29359121cd29a75b9f06df77e408680b7661fe637824ac4d8", kill_on_drop: false }`
[INFO] [stdout] 82069da87ae386e29359121cd29a75b9f06df77e408680b7661fe637824ac4d8
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "2e2fed76643bf6e0c87e75765aa4adc9deb9f938f5a274ae03037afa6c4ec8ac", kill_on_drop: false }`
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[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-to-webrtc/rtp-to-webrtc.rs:158:16
[INFO] [stdout]     |
[INFO] [stdout] 158 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-to-webrtc/rtp-to-webrtc.rs:159:21
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-to-webrtc/rtp-to-webrtc.rs:182:19
[INFO] [stdout]     |
[INFO] [stdout] 182 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels/data-channels.rs:161:16
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-create/data-channels-create.rs:170:19
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels/data-channels.rs:162:21
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-create/data-channels-create.rs:177:16
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-create/data-channels-create.rs:178:21
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels/data-channels.rs:185:19
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/simulcast/simulcast.rs:148:16
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/simulcast/simulcast.rs:149:21
[INFO] [stdout]     |
[INFO] [stdout] 149 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/simulcast/simulcast.rs:258:19
[INFO] [stdout]     |
[INFO] [stdout] 258 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "data-channels-create") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `examples` (example "data-channels") due to 4 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-close/data-channels-close.rs:200:16
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-close/data-channels-close.rs:201:21
[INFO] [stdout]     |
[INFO] [stdout] 201 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "rtp-to-webrtc") due to 4 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-close/data-channels-close.rs:224:19
[INFO] [stdout]     |
[INFO] [stdout] 224 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-detach/data-channels-detach.rs:172:16
[INFO] [stdout]     |
[INFO] [stdout] 172 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-detach/data-channels-detach.rs:173:21
[INFO] [stdout]     |
[INFO] [stdout] 173 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-detach/data-channels-detach.rs:196:19
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/swap-tracks/swap-tracks.rs:127:16
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/swap-tracks/swap-tracks.rs:128:21
[INFO] [stdout]     |
[INFO] [stdout] 128 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/save-to-disk-vpx/save-to-disk-vpx.rs:304:16
[INFO] [stdout]     |
[INFO] [stdout] 304 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/save-to-disk-vpx/save-to-disk-vpx.rs:305:21
[INFO] [stdout]     |
[INFO] [stdout] 305 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-forwarder/rtp-forwarder.rs:289:16
[INFO] [stdout]     |
[INFO] [stdout] 289 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-forwarder/rtp-forwarder.rs:290:21
[INFO] [stdout]     |
[INFO] [stdout] 290 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/save-to-disk-vpx/save-to-disk-vpx.rs:328:19
[INFO] [stdout]     |
[INFO] [stdout] 328 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "simulcast") due to 4 previous errors
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-forwarder/rtp-forwarder.rs:313:19
[INFO] [stdout]     |
[INFO] [stdout] 313 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/swap-tracks/swap-tracks.rs:251:19
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "data-channels-close") due to 4 previous errors
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "data-channels-detach") due to 4 previous errors
[INFO] [stderr] error: could not compile `examples` (example "rtp-forwarder") due to 4 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/ortc/ortc.rs:172:15
[INFO] [stdout]     |
[INFO] [stdout] 172 |     let b64 = signal::encode(&json_str);
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               use of undeclared crate or module `signal`
[INFO] [stdout]     |               help: a struct with a similar name exists (notice the capitalization): `Signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "save-to-disk-vpx") due to 4 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/ortc/ortc.rs:175:16
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                use of undeclared crate or module `signal`
[INFO] [stdout]     |                help: a struct with a similar name exists (notice the capitalization): `Signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/ortc/ortc.rs:176:20
[INFO] [stdout]     |
[INFO] [stdout] 176 |     let json_str = signal::decode(line.as_str())?;
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    use of undeclared crate or module `signal`
[INFO] [stdout]     |                    help: a struct with a similar name exists (notice the capitalization): `Signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "swap-tracks") due to 4 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-detach-create/data-channels-detach-create.rs:179:19
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-detach-create/data-channels-detach-create.rs:186:16
[INFO] [stdout]     |
[INFO] [stdout] 186 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-detach-create/data-channels-detach-create.rs:187:21
[INFO] [stdout]     |
[INFO] [stdout] 187 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "data-channels-detach-create") due to 4 previous errors
[INFO] [stderr] error: could not compile `examples` (example "ortc") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "2e2fed76643bf6e0c87e75765aa4adc9deb9f938f5a274ae03037afa6c4ec8ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e2fed76643bf6e0c87e75765aa4adc9deb9f938f5a274ae03037afa6c4ec8ac", kill_on_drop: false }`
[INFO] [stdout] 2e2fed76643bf6e0c87e75765aa4adc9deb9f938f5a274ae03037afa6c4ec8ac
[INFO] checking examples-0.4.0 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate examples 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate examples 0.4.0 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate examples 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate examples 0.4.0
[INFO] tweaked toml for crates.io crate examples 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate examples 0.4.0 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" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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] 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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e56b1adf485ebb696e8165792234a84d56b32802090079f3df9edfd7de5a591
[INFO] running `Command { std: "docker" "start" "-a" "2e56b1adf485ebb696e8165792234a84d56b32802090079f3df9edfd7de5a591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e56b1adf485ebb696e8165792234a84d56b32802090079f3df9edfd7de5a591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e56b1adf485ebb696e8165792234a84d56b32802090079f3df9edfd7de5a591", kill_on_drop: false }`
[INFO] [stdout] 2e56b1adf485ebb696e8165792234a84d56b32802090079f3df9edfd7de5a591
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e86be0efa9f6d0578e35562cf9550be9a0dd243d1f40d859729a95379d226921
[INFO] running `Command { std: "docker" "start" "-a" "e86be0efa9f6d0578e35562cf9550be9a0dd243d1f40d859729a95379d226921", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking typenum v1.15.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling funty v1.1.0
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[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling serde_derive v1.0.133
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[INFO] [stderr]    Compiling webrtc-util v0.5.3
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[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling zeroize_derive v1.3.1
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[INFO] [stderr]     Checking env_logger v0.9.0
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[INFO] [stderr]    Compiling der-oid-macro v0.4.0
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[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/simulcast/simulcast.rs:148:16
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/simulcast/simulcast.rs:149:21
[INFO] [stdout]     |
[INFO] [stdout] 149 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels/data-channels.rs:161:16
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels/data-channels.rs:162:21
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/play-from-disk-vpx/play-from-disk-vpx.rs:326:16
[INFO] [stdout]     |
[INFO] [stdout] 326 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels/data-channels.rs:185:19
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/play-from-disk-vpx/play-from-disk-vpx.rs:327:21
[INFO] [stdout]     |
[INFO] [stdout] 327 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/play-from-disk-vpx/play-from-disk-vpx.rs:350:19
[INFO] [stdout]     |
[INFO] [stdout] 350 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-forwarder/rtp-forwarder.rs:289:16
[INFO] [stdout]     |
[INFO] [stdout] 289 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-forwarder/rtp-forwarder.rs:290:21
[INFO] [stdout]     |
[INFO] [stdout] 290 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-forwarder/rtp-forwarder.rs:313:19
[INFO] [stdout]     |
[INFO] [stdout] 313 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/simulcast/simulcast.rs:258:19
[INFO] [stdout]     |
[INFO] [stdout] 258 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/reflect/reflect.rs:191:16
[INFO] [stdout]     |
[INFO] [stdout] 191 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/reflect/reflect.rs:192:21
[INFO] [stdout]     |
[INFO] [stdout] 192 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "data-channels") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "rtp-forwarder") due to 4 previous errors
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "play-from-disk-vpx") due to 4 previous errors
[INFO] [stderr] error: could not compile `examples` (example "simulcast") due to 4 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/reflect/reflect.rs:309:19
[INFO] [stdout]     |
[INFO] [stdout] 309 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/swap-tracks/swap-tracks.rs:127:16
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/swap-tracks/swap-tracks.rs:128:21
[INFO] [stdout]     |
[INFO] [stdout] 128 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-detach-create/data-channels-detach-create.rs:179:19
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-detach-create/data-channels-detach-create.rs:186:16
[INFO] [stdout]     |
[INFO] [stdout] 186 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/data-channels-detach-create/data-channels-detach-create.rs:187:21
[INFO] [stdout]     |
[INFO] [stdout] 187 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/play-from-disk-h264/play-from-disk-h264.rs:320:16
[INFO] [stdout]     |
[INFO] [stdout] 320 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/play-from-disk-h264/play-from-disk-h264.rs:321:21
[INFO] [stdout]     |
[INFO] [stdout] 321 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/play-from-disk-h264/play-from-disk-h264.rs:344:19
[INFO] [stdout]     |
[INFO] [stdout] 344 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/save-to-disk-vpx/save-to-disk-vpx.rs:304:16
[INFO] [stdout]     |
[INFO] [stdout] 304 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "reflect") due to 4 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/save-to-disk-vpx/save-to-disk-vpx.rs:305:21
[INFO] [stdout]     |
[INFO] [stdout] 305 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/swap-tracks/swap-tracks.rs:251:19
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/save-to-disk-vpx/save-to-disk-vpx.rs:328:19
[INFO] [stdout]     |
[INFO] [stdout] 328 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-to-webrtc/rtp-to-webrtc.rs:158:16
[INFO] [stdout]     |
[INFO] [stdout] 158 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-to-webrtc/rtp-to-webrtc.rs:159:21
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/rtp-to-webrtc/rtp-to-webrtc.rs:182:19
[INFO] [stdout]     |
[INFO] [stdout] 182 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "data-channels-detach-create") due to 4 previous errors
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/insertable-streams/insertable-streams.rs:228:16
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let line = signal::must_read_stdin()?;
[INFO] [stdout]     |                ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/insertable-streams/insertable-streams.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |     let desc_data = signal::decode(line.as_str())?;
[INFO] [stdout]     |                     ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "play-from-disk-h264") due to 4 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `signal`
[INFO] [stdout]    --> examples/insertable-streams/insertable-streams.rs:252:19
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let b64 = signal::encode(&json_str);
[INFO] [stdout]     |                   ^^^^^^ use of undeclared crate or module `signal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "save-to-disk-vpx") due to 4 previous errors
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "swap-tracks") due to 4 previous errors
[INFO] [stderr] error: could not compile `examples` (example "rtp-to-webrtc") due to 4 previous errors
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `examples` (example "insertable-streams") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "e86be0efa9f6d0578e35562cf9550be9a0dd243d1f40d859729a95379d226921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e86be0efa9f6d0578e35562cf9550be9a0dd243d1f40d859729a95379d226921", kill_on_drop: false }`
[INFO] [stdout] e86be0efa9f6d0578e35562cf9550be9a0dd243d1f40d859729a95379d226921
