[INFO] cloning repository https://github.com/SaiintBrisson/mp3_decoder [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SaiintBrisson/mp3_decoder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaiintBrisson%2Fmp3_decoder", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaiintBrisson%2Fmp3_decoder'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a0fb370bb4b215e5ab05310848811ab0351db56c [INFO] testing SaiintBrisson/mp3_decoder against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaiintBrisson%2Fmp3_decoder" "/workspace/builds/worker-75/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SaiintBrisson/mp3_decoder on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/SaiintBrisson/mp3_decoder [INFO] finished tweaking git repo https://github.com/SaiintBrisson/mp3_decoder [INFO] tweaked toml for git repo https://github.com/SaiintBrisson/mp3_decoder written to /workspace/builds/worker-75/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 989e135b3d49dc8057cc01df417f8833e001680c968ebbe628006371d326a6fd [INFO] running `Command { std: "docker" "start" "-a" "989e135b3d49dc8057cc01df417f8833e001680c968ebbe628006371d326a6fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "989e135b3d49dc8057cc01df417f8833e001680c968ebbe628006371d326a6fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "989e135b3d49dc8057cc01df417f8833e001680c968ebbe628006371d326a6fd", kill_on_drop: false }` [INFO] [stdout] 989e135b3d49dc8057cc01df417f8833e001680c968ebbe628006371d326a6fd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7de8413a8977f7dc405ca42520b2d5e64fd8e9bc4b0983a3f067a97664566bd8 [INFO] running `Command { std: "docker" "start" "-a" "7de8413a8977f7dc405ca42520b2d5e64fd8e9bc4b0983a3f067a97664566bd8", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling bytes v1.1.0 [INFO] [stderr] Compiling mp3-reader v0.1.0 (/opt/rustwide/workdir/mp3-reader) [INFO] [stderr] Compiling encoding_rs v0.8.28 [INFO] [stderr] Compiling id3-reader v0.1.0 (/opt/rustwide/workdir/id3-reader) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> id3-reader/src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(bool_to_option)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> id3-reader/src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(try_blocks)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> id3-reader/src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(test)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `id3-reader` due to 4 previous errors [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "7de8413a8977f7dc405ca42520b2d5e64fd8e9bc4b0983a3f067a97664566bd8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7de8413a8977f7dc405ca42520b2d5e64fd8e9bc4b0983a3f067a97664566bd8", kill_on_drop: false }` [INFO] [stdout] 7de8413a8977f7dc405ca42520b2d5e64fd8e9bc4b0983a3f067a97664566bd8