[INFO] fetching crate bcd 0.1.0...
[INFO] testing bcd-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate bcd 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate bcd 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bcd 0.1.0
[INFO] finished tweaking crates.io crate bcd 0.1.0
[INFO] tweaked toml for crates.io crate bcd 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 439ba6eeafa2db105ee5222bbb45167f431b66cca2e4b4864478693a63a1f23d
[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" "439ba6eeafa2db105ee5222bbb45167f431b66cca2e4b4864478693a63a1f23d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "439ba6eeafa2db105ee5222bbb45167f431b66cca2e4b4864478693a63a1f23d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439ba6eeafa2db105ee5222bbb45167f431b66cca2e4b4864478693a63a1f23d", kill_on_drop: false }`
[INFO] [stdout] 439ba6eeafa2db105ee5222bbb45167f431b66cca2e4b4864478693a63a1f23d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97a23b0cbc76d08e8de6d4dc5078cfbb1ef63da2049d5b0d3a4a4901c0557c9f
[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" "97a23b0cbc76d08e8de6d4dc5078cfbb1ef63da2049d5b0d3a4a4901c0557c9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bcd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test, const_fn, const_let, try_from)]
[INFO] [stdout]   |                  ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test, const_fn, const_let, try_from)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `const_let` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bcd` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "97a23b0cbc76d08e8de6d4dc5078cfbb1ef63da2049d5b0d3a4a4901c0557c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97a23b0cbc76d08e8de6d4dc5078cfbb1ef63da2049d5b0d3a4a4901c0557c9f", kill_on_drop: false }`
[INFO] [stdout] 97a23b0cbc76d08e8de6d4dc5078cfbb1ef63da2049d5b0d3a4a4901c0557c9f