[INFO] fetching crate relative 0.2.2...
[INFO] testing relative-0.2.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate relative 0.2.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate relative 0.2.2 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 relative 0.2.2
[INFO] finished tweaking crates.io crate relative 0.2.2
[INFO] tweaked toml for crates.io crate relative 0.2.2 written to /workspace/builds/worker-0/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]  Downloading crates ...
[INFO] [stderr]   Downloaded generic-array v0.13.3
[INFO] [stderr]   Downloaded as-slice v0.1.5
[INFO] [stderr]   Downloaded heapless v0.5.6
[INFO] [stderr]   Downloaded procinfo v0.4.2
[INFO] [stderr]   Downloaded build_id v0.2.1
[INFO] [stderr]   Downloaded palaver v0.2.8
[INFO] [stderr]   Downloaded hash32 v0.1.1
[INFO] [stderr]   Downloaded metatype v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 98d15d57e2eb37b63f254ef9ca9b594f9c4e07be2c9d50614d70c1125aaac3d4
[INFO] running `Command { std: "docker" "start" "-a" "98d15d57e2eb37b63f254ef9ca9b594f9c4e07be2c9d50614d70c1125aaac3d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98d15d57e2eb37b63f254ef9ca9b594f9c4e07be2c9d50614d70c1125aaac3d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98d15d57e2eb37b63f254ef9ca9b594f9c4e07be2c9d50614d70c1125aaac3d4", kill_on_drop: false }`
[INFO] [stdout] 98d15d57e2eb37b63f254ef9ca9b594f9c4e07be2c9d50614d70c1125aaac3d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] e76a5256f8feb25b718349af837525e6f50ddfebb1f36d38857ad0a24718682a
[INFO] running `Command { std: "docker" "start" "-a" "e76a5256f8feb25b718349af837525e6f50ddfebb1f36d38857ad0a24718682a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling build_id v0.2.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling relative v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling hash32 v0.1.1
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling twox-hash v1.6.2
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling palaver v0.2.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.16s
[INFO] running `Command { std: "docker" "inspect" "e76a5256f8feb25b718349af837525e6f50ddfebb1f36d38857ad0a24718682a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e76a5256f8feb25b718349af837525e6f50ddfebb1f36d38857ad0a24718682a", kill_on_drop: false }`
[INFO] [stdout] e76a5256f8feb25b718349af837525e6f50ddfebb1f36d38857ad0a24718682a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f756253c6aab24901be02f739c504afcca3d9647c9d7b5d433f035cefaecca77
[INFO] running `Command { std: "docker" "start" "-a" "f756253c6aab24901be02f739c504afcca3d9647c9d7b5d433f035cefaecca77", kill_on_drop: false }`
[INFO] [stderr]    Compiling metatype v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling bincode v1.3.3
[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/metatype-0.2.1/src/lib.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | #![feature(arbitrary_self_types)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/metatype-0.2.1/src/lib.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![feature(ptr_metadata)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/metatype-0.2.1/src/lib.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | #![feature(specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `metatype` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f756253c6aab24901be02f739c504afcca3d9647c9d7b5d433f035cefaecca77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f756253c6aab24901be02f739c504afcca3d9647c9d7b5d433f035cefaecca77", kill_on_drop: false }`
[INFO] [stdout] f756253c6aab24901be02f739c504afcca3d9647c9d7b5d433f035cefaecca77