[INFO] fetching crate msf-webrtc 0.2.0...
[INFO] checking msf-webrtc-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate msf-webrtc 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate msf-webrtc 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate msf-webrtc 0.2.0
[INFO] finished tweaking crates.io crate msf-webrtc 0.2.0
[INFO] tweaked toml for crates.io crate msf-webrtc 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 86 packages
[INFO] [stderr]       Adding foreign-types v0.3.2 (latest: v0.5.0)
[INFO] [stderr]       Adding foreign-types-shared v0.1.1 (latest: v0.3.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded msf-sdp v0.2.1
[INFO] [stderr]   Downloaded slog v2.7.0
[INFO] [stderr]   Downloaded msf-srtp v0.2.0
[INFO] [stderr]   Downloaded msf-stun v0.1.1
[INFO] [stderr]   Downloaded msf-ice v0.2.1
[INFO] [stderr]   Downloaded str-reader v0.1.2
[INFO] [stderr]   Downloaded msf-rtp v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a70ff5f96332a0c49e7a530965dc3f2af8144b02daded0cc94f42bd8904ff6c
[INFO] running `Command { std: "docker" "start" "-a" "2a70ff5f96332a0c49e7a530965dc3f2af8144b02daded0cc94f42bd8904ff6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a70ff5f96332a0c49e7a530965dc3f2af8144b02daded0cc94f42bd8904ff6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a70ff5f96332a0c49e7a530965dc3f2af8144b02daded0cc94f42bd8904ff6c", kill_on_drop: false }`
[INFO] [stdout] 2a70ff5f96332a0c49e7a530965dc3f2af8144b02daded0cc94f42bd8904ff6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c9fe382be7f1f70746ab29b29e2648e51437aafe2a8d9fb9a9ed9535505e947
[INFO] running `Command { std: "docker" "start" "-a" "1c9fe382be7f1f70746ab29b29e2648e51437aafe2a8d9fb9a9ed9535505e947", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]     Checking crc v3.0.1
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha-1 v0.10.1
[INFO] [stderr]     Checking msf-stun v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking msf-rtp v0.2.0
[INFO] [stderr]     Checking msf-ice v0.2.1
[INFO] [stderr]     Checking msf-srtp v0.2.0
[INFO] [stderr]     Checking msf-webrtc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "1c9fe382be7f1f70746ab29b29e2648e51437aafe2a8d9fb9a9ed9535505e947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c9fe382be7f1f70746ab29b29e2648e51437aafe2a8d9fb9a9ed9535505e947", kill_on_drop: false }`
[INFO] [stdout] 1c9fe382be7f1f70746ab29b29e2648e51437aafe2a8d9fb9a9ed9535505e947
[INFO] checking msf-webrtc-0.2.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate msf-webrtc 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate msf-webrtc 0.2.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate msf-webrtc 0.2.0
[INFO] finished tweaking crates.io crate msf-webrtc 0.2.0
[INFO] tweaked toml for crates.io crate msf-webrtc 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79daf6545b4a25896af32597ca9f0be5cfad6758b95a1bac03026d869c861bc3
[INFO] running `Command { std: "docker" "start" "-a" "79daf6545b4a25896af32597ca9f0be5cfad6758b95a1bac03026d869c861bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79daf6545b4a25896af32597ca9f0be5cfad6758b95a1bac03026d869c861bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79daf6545b4a25896af32597ca9f0be5cfad6758b95a1bac03026d869c861bc3", kill_on_drop: false }`
[INFO] [stdout] 79daf6545b4a25896af32597ca9f0be5cfad6758b95a1bac03026d869c861bc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9f47b0d3111eb7863f22c53b4b3d2f94d5a4e4be9a4cc2430160c0669f05a0c
[INFO] running `Command { std: "docker" "start" "-a" "c9f47b0d3111eb7863f22c53b4b3d2f94d5a4e4be9a4cc2430160c0669f05a0c", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking crc v3.0.1
[INFO] [stderr]     Checking sha-1 v0.10.1
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking msf-stun v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking msf-rtp v0.2.0
[INFO] [stderr]     Checking msf-ice v0.2.1
[INFO] [stderr]     Checking msf-srtp v0.2.0
[INFO] [stderr]     Checking msf-webrtc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `Command { std: "docker" "inspect" "c9f47b0d3111eb7863f22c53b4b3d2f94d5a4e4be9a4cc2430160c0669f05a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9f47b0d3111eb7863f22c53b4b3d2f94d5a4e4be9a4cc2430160c0669f05a0c", kill_on_drop: false }`
[INFO] [stdout] c9f47b0d3111eb7863f22c53b4b3d2f94d5a4e4be9a4cc2430160c0669f05a0c