[INFO] fetching crate mdbx-proc 0.1.1...
[INFO] testing mdbx-proc-0.1.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate mdbx-proc 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate mdbx-proc 0.1.1
[INFO] finished tweaking crates.io crate mdbx-proc 0.1.1
[INFO] tweaked toml for crates.io crate mdbx-proc 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbx-proc 0.1.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c829defe115279f945fdb7fdf22ccb5f410dabc12632a9cbde3dd5a32b3fbb3
[INFO] running `Command { std: "docker" "start" "-a" "1c829defe115279f945fdb7fdf22ccb5f410dabc12632a9cbde3dd5a32b3fbb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c829defe115279f945fdb7fdf22ccb5f410dabc12632a9cbde3dd5a32b3fbb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c829defe115279f945fdb7fdf22ccb5f410dabc12632a9cbde3dd5a32b3fbb3", kill_on_drop: false }`
[INFO] [stdout] 1c829defe115279f945fdb7fdf22ccb5f410dabc12632a9cbde3dd5a32b3fbb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b2441d4e9425a032fa338a2f4310fd800ac3a0bc99b51cafb3480e9b166be45
[INFO] running `Command { std: "docker" "start" "-a" "0b2441d4e9425a032fa338a2f4310fd800ac3a0bc99b51cafb3480e9b166be45", kill_on_drop: false }`
[INFO] [stderr]    Compiling mdbx-proc v0.1.1 (/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(proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0615]: attempted to take value of method `line` on type `proc_macro::Span`
[INFO] [stdout]   --> src/lib.rs:29:25
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut line = span.line;
[INFO] [stdout]    |                         ^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut line = span.line();
[INFO] [stdout]    |                             ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0615]: attempted to take value of method `column` on type `proc_macro::Span`
[INFO] [stdout]   --> src/lib.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut indent_base = span.column;
[INFO] [stdout]    |                                ^^^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut indent_base = span.column();
[INFO] [stdout]    |                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0615]: attempted to take value of method `line` on type `proc_macro::Span`
[INFO] [stdout]   --> src/lib.rs:35:15
[INFO] [stdout]    |
[INFO] [stdout] 35 |       if span.line != line {
[INFO] [stdout]    |               ^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 35 |       if span.line() != line {
[INFO] [stdout]    |                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0615]: attempted to take value of method `line` on type `proc_macro::Span`
[INFO] [stdout]   --> src/lib.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |         line = span.line;
[INFO] [stdout]    |                     ^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 36 |         line = span.line();
[INFO] [stdout]    |                         ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0615]: attempted to take value of method `column` on type `proc_macro::Span`
[INFO] [stdout]   --> src/lib.rs:37:27
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let column = span.column;
[INFO] [stdout]    |                           ^^^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let column = span.column();
[INFO] [stdout]    |                                 ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0615.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mdbx-proc` (lib) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "0b2441d4e9425a032fa338a2f4310fd800ac3a0bc99b51cafb3480e9b166be45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b2441d4e9425a032fa338a2f4310fd800ac3a0bc99b51cafb3480e9b166be45", kill_on_drop: false }`
[INFO] [stdout] 0b2441d4e9425a032fa338a2f4310fd800ac3a0bc99b51cafb3480e9b166be45