[INFO] fetching crate flow_macro 0.42.0...
[INFO] testing flow_macro-0.42.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate flow_macro 0.42.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate flow_macro 0.42.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flow_macro 0.42.0
[INFO] finished tweaking crates.io crate flow_macro 0.42.0
[INFO] tweaked toml for crates.io crate flow_macro 0.42.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shrinkwraprs v0.3.0
[INFO] [stderr]   Downloaded curl v0.4.46
[INFO] [stderr]   Downloaded curl-sys v0.4.72+curl-8.6.0
[INFO] [stderr]   Downloaded simpath v2.3.0
[INFO] [stderr]   Downloaded flowcore v0.42.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c601739a0af6466752b3eb8d7d16380490fbc4c79bd57b3e0052f19923e3c104
[INFO] running `Command { std: "docker" "start" "-a" "c601739a0af6466752b3eb8d7d16380490fbc4c79bd57b3e0052f19923e3c104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c601739a0af6466752b3eb8d7d16380490fbc4c79bd57b3e0052f19923e3c104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c601739a0af6466752b3eb8d7d16380490fbc4c79bd57b3e0052f19923e3c104", kill_on_drop: false }`
[INFO] [stdout] c601739a0af6466752b3eb8d7d16380490fbc4c79bd57b3e0052f19923e3c104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fc5a65df820602b19da24354f55504470055870bb840d80782e7de77cf15523
[INFO] running `Command { std: "docker" "start" "-a" "3fc5a65df820602b19da24354f55504470055870bb840d80782e7de77cf15523", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.85
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling curl v0.4.46
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling libz-sys v1.1.15
[INFO] [stderr]    Compiling openssl-sys v0.9.99
[INFO] [stderr]    Compiling curl-sys v0.4.72+curl-8.6.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling simpath v2.3.0
[INFO] [stderr]    Compiling flowcore v0.42.0
[INFO] [stderr]    Compiling flow_macro v0.42.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_span)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flow_macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3fc5a65df820602b19da24354f55504470055870bb840d80782e7de77cf15523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fc5a65df820602b19da24354f55504470055870bb840d80782e7de77cf15523", kill_on_drop: false }`
[INFO] [stdout] 3fc5a65df820602b19da24354f55504470055870bb840d80782e7de77cf15523
[INFO] testing flow_macro-0.42.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate flow_macro 0.42.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate flow_macro 0.42.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flow_macro 0.42.0
[INFO] finished tweaking crates.io crate flow_macro 0.42.0
[INFO] tweaked toml for crates.io crate flow_macro 0.42.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e4b51ffee28c8aeb0293d10560d40aa3f3fb26ed77c86e911047a07c80a2c07
[INFO] running `Command { std: "docker" "start" "-a" "6e4b51ffee28c8aeb0293d10560d40aa3f3fb26ed77c86e911047a07c80a2c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e4b51ffee28c8aeb0293d10560d40aa3f3fb26ed77c86e911047a07c80a2c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e4b51ffee28c8aeb0293d10560d40aa3f3fb26ed77c86e911047a07c80a2c07", kill_on_drop: false }`
[INFO] [stdout] 6e4b51ffee28c8aeb0293d10560d40aa3f3fb26ed77c86e911047a07c80a2c07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9ed61c9a2651f7c6cbe33f4db39d845f70dfed82a3fe422d0961b7555198e3f
[INFO] running `Command { std: "docker" "start" "-a" "f9ed61c9a2651f7c6cbe33f4db39d845f70dfed82a3fe422d0961b7555198e3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.85
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling curl v0.4.46
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling libz-sys v1.1.15
[INFO] [stderr]    Compiling openssl-sys v0.9.99
[INFO] [stderr]    Compiling curl-sys v0.4.72+curl-8.6.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling simpath v2.3.0
[INFO] [stderr]    Compiling flowcore v0.42.0
[INFO] [stderr]    Compiling flow_macro v0.42.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_span)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flow_macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f9ed61c9a2651f7c6cbe33f4db39d845f70dfed82a3fe422d0961b7555198e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ed61c9a2651f7c6cbe33f4db39d845f70dfed82a3fe422d0961b7555198e3f", kill_on_drop: false }`
[INFO] [stdout] f9ed61c9a2651f7c6cbe33f4db39d845f70dfed82a3fe422d0961b7555198e3f
