[INFO] fetching crate dyn-context 0.10.8...
[INFO] testing dyn-context-0.10.8 against 1.59.0 for beta-1.60-1
[INFO] extracting crate dyn-context 0.10.8 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate dyn-context 0.10.8 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dyn-context 0.10.8
[INFO] finished tweaking crates.io crate dyn-context 0.10.8
[INFO] tweaked toml for crates.io crate dyn-context 0.10.8 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcdde8da872e8334209e412c252716ff3fba2fc8aaec5bc4baeba3858674224f
[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" "bcdde8da872e8334209e412c252716ff3fba2fc8aaec5bc4baeba3858674224f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcdde8da872e8334209e412c252716ff3fba2fc8aaec5bc4baeba3858674224f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcdde8da872e8334209e412c252716ff3fba2fc8aaec5bc4baeba3858674224f", kill_on_drop: false }`
[INFO] [stdout] bcdde8da872e8334209e412c252716ff3fba2fc8aaec5bc4baeba3858674224f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "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] 521f5e0aa891b588586d7cb5beaf4828863a4f02623302089233c42dbc5f98c1
[INFO] running `Command { std: "docker" "start" "-a" "521f5e0aa891b588586d7cb5beaf4828863a4f02623302089233c42dbc5f98c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling generics v0.3.2
[INFO] [stderr]    Compiling panicking v0.0.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling enum-ordinalize v3.1.10
[INFO] [stderr]    Compiling educe v0.4.18
[INFO] [stderr]    Compiling phantom-type v0.3.1
[INFO] [stderr]    Compiling dyn-context v0.10.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature="nightly", feature(never_type))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![cfg_attr(feature="nightly", feature(thread_local))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dyn-context` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "521f5e0aa891b588586d7cb5beaf4828863a4f02623302089233c42dbc5f98c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "521f5e0aa891b588586d7cb5beaf4828863a4f02623302089233c42dbc5f98c1", kill_on_drop: false }`
[INFO] [stdout] 521f5e0aa891b588586d7cb5beaf4828863a4f02623302089233c42dbc5f98c1