[INFO] cloning repository https://github.com/code-ga/discord-musicbot-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/code-ga/discord-musicbot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcode-ga%2Fdiscord-musicbot-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcode-ga%2Fdiscord-musicbot-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8180dbec61afad87e44f97a8788e14113839a282
[INFO] checking code-ga/discord-musicbot-rust against master#0fb279be1d96464c69209053ef0f97ad63088cda for pr-143857
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcode-ga%2Fdiscord-musicbot-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/code-ga/discord-musicbot-rust
[INFO] finished tweaking git repo https://github.com/code-ga/discord-musicbot-rust
[INFO] tweaked toml for git repo https://github.com/code-ga/discord-musicbot-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/code-ga/discord-musicbot-rust on toolchain 0fb279be1d96464c69209053ef0f97ad63088cda
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/code-ga/discord-musicbot-rust 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" "+0fb279be1d96464c69209053ef0f97ad63088cda" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/xs/al/xsalsa20poly1305, error: No space left on device (os error 28)
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_macros_support v0.28.0
[INFO] [stderr]   Downloaded xsalsa20poly1305 v0.8.0
[INFO] [stderr]   Downloaded poise_macros v0.5.5
[INFO] [stderr]   Downloaded pnet_macros v0.28.0
[INFO] [stderr]   Downloaded pnet_base v0.28.0
[INFO] [stderr]   Downloaded serenity-voice-model v0.1.1
[INFO] [stderr]   Downloaded discortp v0.4.0
[INFO] [stderr]   Downloaded songbird v0.3.2
[INFO] [stderr]   Downloaded poise v0.5.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dfb0fb4eef9ad76c85e227789b598c9570fee27e3f32d4e8c18614d3149fe56
[INFO] running `Command { std: "docker" "start" "-a" "1dfb0fb4eef9ad76c85e227789b598c9570fee27e3f32d4e8c18614d3149fe56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dfb0fb4eef9ad76c85e227789b598c9570fee27e3f32d4e8c18614d3149fe56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dfb0fb4eef9ad76c85e227789b598c9570fee27e3f32d4e8c18614d3149fe56", kill_on_drop: false }`
[INFO] [stdout] 1dfb0fb4eef9ad76c85e227789b598c9570fee27e3f32d4e8c18614d3149fe56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d74f77fbcba9ff6b98ab0d23875953d27e36f239de7e90cefd89125575f27c75
[INFO] running `Command { std: "docker" "start" "-a" "d74f77fbcba9ff6b98ab0d23875953d27e36f239de7e90cefd89125575f27c75", kill_on_drop: false }`
[INFO] [stderr] error: failed to select a version for the requirement `xsalsa20poly1305 = "^0.8"` (locked to 0.8.0)
[INFO] [stderr] candidate versions found which didn't match: 0.3.1, 0.3.0, 0.2.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `songbird v0.3.2`
[INFO] [stderr]     ... which satisfies dependency `songbird = "^0.3.2"` (locked to 0.3.2) of package `discord-music-bot-rust v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] As a reminder, you're using offline mode (--frozen) which can sometimes cause surprising resolution failures, if this error is too confusing you may wish to retry without `--frozen`.
[INFO] running `Command { std: "docker" "inspect" "d74f77fbcba9ff6b98ab0d23875953d27e36f239de7e90cefd89125575f27c75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d74f77fbcba9ff6b98ab0d23875953d27e36f239de7e90cefd89125575f27c75", kill_on_drop: false }`
[INFO] [stdout] d74f77fbcba9ff6b98ab0d23875953d27e36f239de7e90cefd89125575f27c75