[INFO] fetching crate scicrypt-he 0.5.0...
[INFO] testing scicrypt-he-0.5.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate scicrypt-he 0.5.0 into /workspace/builds/worker-99/source
[INFO] validating manifest of crates.io crate scicrypt-he 0.5.0 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 scicrypt-he 0.5.0
[INFO] finished tweaking crates.io crate scicrypt-he 0.5.0
[INFO] tweaked toml for crates.io crate scicrypt-he 0.5.0 written to /workspace/builds/worker-99/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 891599092c0e9c3706310a3dfc3c0c489046dd458f6a91412341ec7b362a1525
[INFO] running `Command { std: "docker" "start" "-a" "891599092c0e9c3706310a3dfc3c0c489046dd458f6a91412341ec7b362a1525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "891599092c0e9c3706310a3dfc3c0c489046dd458f6a91412341ec7b362a1525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891599092c0e9c3706310a3dfc3c0c489046dd458f6a91412341ec7b362a1525", kill_on_drop: false }`
[INFO] [stdout] 891599092c0e9c3706310a3dfc3c0c489046dd458f6a91412341ec7b362a1525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd32ed5e9b6f303550e8508afb4c08d53a520c750b99e528207b19f712d06b23
[INFO] running `Command { std: "docker" "start" "-a" "fd32ed5e9b6f303550e8508afb4c08d53a520c750b99e528207b19f712d06b23", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.8
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling az v1.2.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rug v1.15.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling crypto-common v0.1.3
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling curve25519-dalek v4.0.0-pre.2
[INFO] [stderr]    Compiling scicrypt-traits v0.5.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/scicrypt-traits-0.5.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scicrypt-traits` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fd32ed5e9b6f303550e8508afb4c08d53a520c750b99e528207b19f712d06b23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd32ed5e9b6f303550e8508afb4c08d53a520c750b99e528207b19f712d06b23", kill_on_drop: false }`
[INFO] [stdout] fd32ed5e9b6f303550e8508afb4c08d53a520c750b99e528207b19f712d06b23