[INFO] fetching crate awsl-error 0.1.0...
[INFO] testing awsl-error-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate awsl-error 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate awsl-error 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 awsl-error 0.1.0
[INFO] finished tweaking crates.io crate awsl-error 0.1.0
[INFO] tweaked toml for crates.io crate awsl-error 0.1.0 written to /workspace/builds/worker-6/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded str_indices v0.3.2
[INFO] [stderr]   Downloaded type-uuid v0.1.2
[INFO] [stderr]   Downloaded type-uuid-derive v0.1.2
[INFO] [stderr]   Downloaded yggdrasil-shared v0.2.1
[INFO] [stderr]   Downloaded ariadne v0.1.5
[INFO] [stderr]   Downloaded ropey v1.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0acfd1b7b8545d2ebf2f09189585e2a7c6bc3961fa217ee3157cd14fc93ce9d9
[INFO] running `Command { std: "docker" "start" "-a" "0acfd1b7b8545d2ebf2f09189585e2a7c6bc3961fa217ee3157cd14fc93ce9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0acfd1b7b8545d2ebf2f09189585e2a7c6bc3961fa217ee3157cd14fc93ce9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0acfd1b7b8545d2ebf2f09189585e2a7c6bc3961fa217ee3157cd14fc93ce9d9", kill_on_drop: false }`
[INFO] [stdout] 0acfd1b7b8545d2ebf2f09189585e2a7c6bc3961fa217ee3157cd14fc93ce9d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5d5cbbd9b5b88a5acaecea33e78d0f62746d04d6677919f68d0c5b6861254182
[INFO] running `Command { std: "docker" "start" "-a" "5d5cbbd9b5b88a5acaecea33e78d0f62746d04d6677919f68d0c5b6861254182", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling str_indices v0.3.2
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling ropey v1.4.1
[INFO] [stderr]    Compiling ariadne v0.1.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling yggdrasil-shared v0.2.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling bigdecimal v0.3.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling type-uuid-derive v0.1.2
[INFO] [stderr]    Compiling type-uuid v0.1.2
[INFO] [stderr]    Compiling awsl-error v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait_v2)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `awsl-error` due to 2 previous errors
[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] running `Command { std: "docker" "inspect" "5d5cbbd9b5b88a5acaecea33e78d0f62746d04d6677919f68d0c5b6861254182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d5cbbd9b5b88a5acaecea33e78d0f62746d04d6677919f68d0c5b6861254182", kill_on_drop: false }`
[INFO] [stdout] 5d5cbbd9b5b88a5acaecea33e78d0f62746d04d6677919f68d0c5b6861254182