[INFO] fetching crate entity-trait-system 1.1.8...
[INFO] checking entity-trait-system-1.1.8 against 1.95.0 for pr-155915
[INFO] extracting crate entity-trait-system 1.1.8 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate entity-trait-system 1.1.8
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate entity-trait-system 1.1.8
[INFO] tweaked toml for crates.io crate entity-trait-system 1.1.8 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate entity-trait-system 1.1.8 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate entity-trait-system 1.1.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ron v0.6.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f4453cb170238627a5710a176938d2e98ef37d8ab2e4bcd7585670e5b1c763d
[INFO] running `Command { std: "docker" "start" "-a" "2f4453cb170238627a5710a176938d2e98ef37d8ab2e4bcd7585670e5b1c763d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f4453cb170238627a5710a176938d2e98ef37d8ab2e4bcd7585670e5b1c763d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4453cb170238627a5710a176938d2e98ef37d8ab2e4bcd7585670e5b1c763d", kill_on_drop: false }`
[INFO] [stdout] 2f4453cb170238627a5710a176938d2e98ef37d8ab2e4bcd7585670e5b1c763d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6d54e073c9bc947edc87dce4c493aa555ce88dc1e862e4bce036fe913e4af1a
[INFO] running `Command { std: "docker" "start" "-a" "a6d54e073c9bc947edc87dce4c493aa555ce88dc1e862e4bce036fe913e4af1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling slotmap v1.1.1
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]     Checking unty v0.0.4
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]     Checking entity-trait-system v1.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:115:1
[INFO] [stdout]     |
[INFO] [stdout] 115 | #![feature(specialization)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `entity-trait-system` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a6d54e073c9bc947edc87dce4c493aa555ce88dc1e862e4bce036fe913e4af1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6d54e073c9bc947edc87dce4c493aa555ce88dc1e862e4bce036fe913e4af1a", kill_on_drop: false }`
[INFO] [stdout] a6d54e073c9bc947edc87dce4c493aa555ce88dc1e862e4bce036fe913e4af1a
