[INFO] fetching crate search_trees 0.0.3...
[INFO] checking search_trees-0.0.3 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate search_trees 0.0.3 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate search_trees 0.0.3 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate search_trees 0.0.3
[INFO] finished tweaking crates.io crate search_trees 0.0.3
[INFO] tweaked toml for crates.io crate search_trees 0.0.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate search_trees 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b980cb5504bd5887cfdaf97333e1cc7eb4db92d3afad2c55c848139547d33bc
[INFO] running `Command { std: "docker" "start" "-a" "7b980cb5504bd5887cfdaf97333e1cc7eb4db92d3afad2c55c848139547d33bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b980cb5504bd5887cfdaf97333e1cc7eb4db92d3afad2c55c848139547d33bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b980cb5504bd5887cfdaf97333e1cc7eb4db92d3afad2c55c848139547d33bc", kill_on_drop: false }`
[INFO] [stdout] 7b980cb5504bd5887cfdaf97333e1cc7eb4db92d3afad2c55c848139547d33bc
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0513d19c9ac5cd9ad9262949b81f72fb4e0d77916e137a41de1edf956daa38a
[INFO] running `Command { std: "docker" "start" "-a" "b0513d19c9ac5cd9ad9262949b81f72fb4e0d77916e137a41de1edf956daa38a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking search_trees v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `!` or `::`, found keyword `use`
[INFO] [stdout]   --> src/avltree.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | ppppp
[INFO] [stdout]    |      - expected one of `!` or `::`
[INFO] [stdout] 11 | use std::cell::RefCell;
[INFO] [stdout]    | ^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::avltree::AVLTree`
[INFO] [stdout]   --> src/prelude.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use crate::avltree::AVLTree;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ no `AVLTree` in `avltree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `search_trees` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b0513d19c9ac5cd9ad9262949b81f72fb4e0d77916e137a41de1edf956daa38a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0513d19c9ac5cd9ad9262949b81f72fb4e0d77916e137a41de1edf956daa38a", kill_on_drop: false }`
[INFO] [stdout] b0513d19c9ac5cd9ad9262949b81f72fb4e0d77916e137a41de1edf956daa38a