[INFO] fetching crate calamine 0.16.2...
[INFO] checking calamine-0.16.2 against beta for pr-78714
[INFO] extracting crate calamine 0.16.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate calamine 0.16.2 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate calamine 0.16.2
[INFO] finished tweaking crates.io crate calamine 0.16.2
[INFO] tweaked toml for crates.io crate calamine 0.16.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate calamine 0.16.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e9a0111b9f498e6454a0749efac079932050ef08aa3bcbb508d73a62f41bb6ad
[INFO] running `Command { std: "docker" "start" "-a" "e9a0111b9f498e6454a0749efac079932050ef08aa3bcbb508d73a62f41bb6ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9a0111b9f498e6454a0749efac079932050ef08aa3bcbb508d73a62f41bb6ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9a0111b9f498e6454a0749efac079932050ef08aa3bcbb508d73a62f41bb6ad", kill_on_drop: false }`
[INFO] [stdout] e9a0111b9f498e6454a0749efac079932050ef08aa3bcbb508d73a62f41bb6ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1c067a0e8dbc4fd8dcd4db97281df43f9fafb5631f2b9bdc6240b58dd843202
[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" "b1c067a0e8dbc4fd8dcd4db97281df43f9fafb5631f2b9bdc6240b58dd843202", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.22
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking miniz_oxide v0.3.5
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quick-xml v0.19.0
[INFO] [stderr]     Checking codepage v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking zip v0.5.8
[INFO] [stderr]     Checking calamine v0.16.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/basic.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `calamine`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b1c067a0e8dbc4fd8dcd4db97281df43f9fafb5631f2b9bdc6240b58dd843202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c067a0e8dbc4fd8dcd4db97281df43f9fafb5631f2b9bdc6240b58dd843202", kill_on_drop: false }`
[INFO] [stdout] b1c067a0e8dbc4fd8dcd4db97281df43f9fafb5631f2b9bdc6240b58dd843202