[INFO] fetching crate flowmacro 0.95.0...
[INFO] testing flowmacro-0.95.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate flowmacro 0.95.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate flowmacro 0.95.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flowmacro 0.95.0
[INFO] finished tweaking crates.io crate flowmacro 0.95.0
[INFO] tweaked toml for crates.io crate flowmacro 0.95.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "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-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62decc53394b9a47be10d15c3933f354b35527305a835b1e8faec78844660e88
[INFO] running `Command { std: "docker" "start" "-a" "62decc53394b9a47be10d15c3933f354b35527305a835b1e8faec78844660e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62decc53394b9a47be10d15c3933f354b35527305a835b1e8faec78844660e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62decc53394b9a47be10d15c3933f354b35527305a835b1e8faec78844660e88", kill_on_drop: false }`
[INFO] [stdout] 62decc53394b9a47be10d15c3933f354b35527305a835b1e8faec78844660e88
[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=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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31cadb744c7be543ed31c618be30193ff872f3bf3386f59db6cee2d7b8e71c69
[INFO] running `Command { std: "docker" "start" "-a" "31cadb744c7be543ed31c618be30193ff872f3bf3386f59db6cee2d7b8e71c69", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling gimli v0.27.2
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.8
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling object v0.30.3
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling openssl-sys v0.9.87
[INFO] [stderr]    Compiling libz-sys v1.1.9
[INFO] [stderr]    Compiling curl-sys v0.4.61+curl-8.0.1
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling serde_spanned v0.6.1
[INFO] [stderr]    Compiling toml_datetime v0.6.1
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling serde_yaml v0.9.21
[INFO] [stderr]    Compiling toml_edit v0.19.8
[INFO] [stderr]    Compiling simpath v2.3.0
[INFO] [stderr]    Compiling toml v0.7.3
[INFO] [stderr]    Compiling flowcore v0.95.0
[INFO] [stderr]    Compiling flowmacro v0.95.0 (/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 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 `flowmacro` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "31cadb744c7be543ed31c618be30193ff872f3bf3386f59db6cee2d7b8e71c69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31cadb744c7be543ed31c618be30193ff872f3bf3386f59db6cee2d7b8e71c69", kill_on_drop: false }`
[INFO] [stdout] 31cadb744c7be543ed31c618be30193ff872f3bf3386f59db6cee2d7b8e71c69
