[INFO] fetching crate conftaal 0.1.1...
[INFO] checking conftaal-0.1.1 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate conftaal 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate conftaal 0.1.1 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate conftaal 0.1.1
[INFO] finished tweaking crates.io crate conftaal 0.1.1
[INFO] tweaked toml for crates.io crate conftaal 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1ccd19f616191c598e7d2229a1133e72c5fb83e323ceff132ba682d359ae26c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f1ccd19f616191c598e7d2229a1133e72c5fb83e323ceff132ba682d359ae26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1ccd19f616191c598e7d2229a1133e72c5fb83e323ceff132ba682d359ae26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1ccd19f616191c598e7d2229a1133e72c5fb83e323ceff132ba682d359ae26c", kill_on_drop: false }`
[INFO] [stdout] f1ccd19f616191c598e7d2229a1133e72c5fb83e323ceff132ba682d359ae26c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f15a155ab6a6d36602be82cc6b72119a04a35a6418464d026bd4e05cc160296
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1f15a155ab6a6d36602be82cc6b72119a04a35a6418464d026bd4e05cc160296", kill_on_drop: false }`
[INFO] [stderr]     Checking conftaal v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/parse/mod.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/parse/mod.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/parse/mod.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 '0'...'9' => !start,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/parse/mod.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/parse/mod.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/parse/mod.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 '0'...'9' => !start,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `*current` as mutable more than once at a time
[INFO] [stdout]    --> src/parse/mod.rs:287:19
[INFO] [stdout]     |
[INFO] [stdout] 269 |   fn find_lhs<'a, 'b>(
[INFO] [stdout]     |                   -- lifetime `'b` defined here
[INFO] [stdout] ...
[INFO] [stdout] 278 |                   op: e_op,
[INFO] [stdout]     |                       ---- first mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 283 |                   expr = Rc::get_mut(match e_op {
[INFO] [stdout]     |  ________________________-
[INFO] [stdout] 284 | |                     Op::UnaryOp{rhs, ..} | Op::BinaryOp{rhs, ..} => rhs
[INFO] [stdout] 285 | |                 }).unwrap();
[INFO] [stdout]     | |__________________- argument requires that `current.op` is borrowed for `'b`
[INFO] [stdout] 286 |               }
[INFO] [stdout] 287 |               _ => return Ok(current)
[INFO] [stdout]     |                              ^^^^^^^ second mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `conftaal`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0499]: cannot borrow `*current` as mutable more than once at a time
[INFO] [stdout]    --> src/parse/mod.rs:287:19
[INFO] [stdout]     |
[INFO] [stdout] 269 |   fn find_lhs<'a, 'b>(
[INFO] [stdout]     |                   -- lifetime `'b` defined here
[INFO] [stdout] ...
[INFO] [stdout] 278 |                   op: e_op,
[INFO] [stdout]     |                       ---- first mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 283 |                   expr = Rc::get_mut(match e_op {
[INFO] [stdout]     |  ________________________-
[INFO] [stdout] 284 | |                     Op::UnaryOp{rhs, ..} | Op::BinaryOp{rhs, ..} => rhs
[INFO] [stdout] 285 | |                 }).unwrap();
[INFO] [stdout]     | |__________________- argument requires that `current.op` is borrowed for `'b`
[INFO] [stdout] 286 |               }
[INFO] [stdout] 287 |               _ => return Ok(current)
[INFO] [stdout]     |                              ^^^^^^^ second mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1f15a155ab6a6d36602be82cc6b72119a04a35a6418464d026bd4e05cc160296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f15a155ab6a6d36602be82cc6b72119a04a35a6418464d026bd4e05cc160296", kill_on_drop: false }`
[INFO] [stdout] 1f15a155ab6a6d36602be82cc6b72119a04a35a6418464d026bd4e05cc160296