[INFO] fetching crate sled-extensions 0.2.0...
[INFO] testing sled-extensions-0.2.0 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate sled-extensions 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate sled-extensions 0.2.0
[INFO] finished tweaking crates.io crate sled-extensions 0.2.0
[INFO] tweaked toml for crates.io crate sled-extensions 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sled-extensions 0.2.0 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v2.0.1)
[INFO] [stderr]       Adding serde_cbor v0.10.2 (available: v0.11.2)
[INFO] [stderr]       Adding sled v0.29.2 (available: v0.34.7)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f02c2f0e291c04e73c719d908d25c50d4eb4a8c282f808b8a189eca408fa2f03
[INFO] running `Command { std: "docker" "start" "-a" "f02c2f0e291c04e73c719d908d25c50d4eb4a8c282f808b8a189eca408fa2f03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f02c2f0e291c04e73c719d908d25c50d4eb4a8c282f808b8a189eca408fa2f03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02c2f0e291c04e73c719d908d25c50d4eb4a8c282f808b8a189eca408fa2f03", kill_on_drop: false }`
[INFO] [stdout] f02c2f0e291c04e73c719d908d25c50d4eb4a8c282f808b8a189eca408fa2f03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2782c59fe5940c7aa51601e0fe7a28d03d8f98689a502279b5a686e73225fad8
[INFO] running `Command { std: "docker" "start" "-a" "2782c59fe5940c7aa51601e0fe7a28d03d8f98689a502279b5a686e73225fad8", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling sled v0.29.2
[INFO] [stdout] error[E0308]: `if` and `else` have incompatible types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/sled-0.29.2/src/config.rs:552:20
[INFO] [stdout]     |
[INFO] [stdout] 550 |               let try_lock = if self.read_only {
[INFO] [stdout]     |                              ----------------- `if` and `else` have incompatible types
[INFO] [stdout] 551 |                   file.try_lock_shared()
[INFO] [stdout]     |                   ---------------------- expected because of this
[INFO] [stdout] 552 |               } else if cfg!(feature = "testing") {
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] ...   |
[INFO] [stdout] 560 | |                 file.try_lock_exclusive()
[INFO] [stdout] 561 | |             };
[INFO] [stdout]     | |_____________^ expected `Result<(), TryLockError>`, found `Result<(), Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `std::result::Result<_, std::fs::TryLockError>`
[INFO] [stdout]                found enum `std::result::Result<_, std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sled` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2782c59fe5940c7aa51601e0fe7a28d03d8f98689a502279b5a686e73225fad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2782c59fe5940c7aa51601e0fe7a28d03d8f98689a502279b5a686e73225fad8", kill_on_drop: false }`
[INFO] [stdout] 2782c59fe5940c7aa51601e0fe7a28d03d8f98689a502279b5a686e73225fad8