[INFO] cloning repository https://github.com/ivan770/typesql
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivan770/typesql" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan770%2Ftypesql", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan770%2Ftypesql'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 871e8a99f364affb7af2445d6ac8f7f93f9c8f06
[INFO] testing ivan770/typesql against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan770%2Ftypesql" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ivan770/typesql on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ivan770/typesql
[INFO] finished tweaking git repo https://github.com/ivan770/typesql
[INFO] tweaked toml for git repo https://github.com/ivan770/typesql written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ivan770/typesql already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a05639d2593a41fe4c19fa75678276adbe9e27caa2c8f74d33f7eb13ef862563
[INFO] running `Command { std: "docker" "start" "-a" "a05639d2593a41fe4c19fa75678276adbe9e27caa2c8f74d33f7eb13ef862563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a05639d2593a41fe4c19fa75678276adbe9e27caa2c8f74d33f7eb13ef862563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a05639d2593a41fe4c19fa75678276adbe9e27caa2c8f74d33f7eb13ef862563", kill_on_drop: false }`
[INFO] [stdout] a05639d2593a41fe4c19fa75678276adbe9e27caa2c8f74d33f7eb13ef862563
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb62d5863ef3a9ad14b7a1cbc018b161c8f72e82a5bb64e336d2df525dc7a18c
[INFO] running `Command { std: "docker" "start" "-a" "fb62d5863ef3a9ad14b7a1cbc018b161c8f72e82a5bb64e336d2df525dc7a18c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling frunk_core v0.3.2
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.5
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.5
[INFO] [stderr]    Compiling frunk_derives v0.3.2
[INFO] [stderr]    Compiling frunk_proc_macros v0.0.5
[INFO] [stderr]    Compiling frunk v0.3.2
[INFO] [stderr]    Compiling typesql 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `typesql` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "fb62d5863ef3a9ad14b7a1cbc018b161c8f72e82a5bb64e336d2df525dc7a18c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb62d5863ef3a9ad14b7a1cbc018b161c8f72e82a5bb64e336d2df525dc7a18c", kill_on_drop: false }`
[INFO] [stdout] fb62d5863ef3a9ad14b7a1cbc018b161c8f72e82a5bb64e336d2df525dc7a18c