[INFO] fetching crate bztree 0.1.0...
[INFO] checking bztree-0.1.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate bztree 0.1.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate bztree 0.1.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bztree 0.1.0
[INFO] finished tweaking crates.io crate bztree 0.1.0
[INFO] tweaked toml for crates.io crate bztree 0.1.0 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c05786802e93635bd2531f83ea1a65fc9fb940d08f3698023eaca17a70b9c4a
[INFO] running `Command { std: "docker" "start" "-a" "5c05786802e93635bd2531f83ea1a65fc9fb940d08f3698023eaca17a70b9c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c05786802e93635bd2531f83ea1a65fc9fb940d08f3698023eaca17a70b9c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c05786802e93635bd2531f83ea1a65fc9fb940d08f3698023eaca17a70b9c4a", kill_on_drop: false }`
[INFO] [stdout] 5c05786802e93635bd2531f83ea1a65fc9fb940d08f3698023eaca17a70b9c4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b37b02bbf1fca09cd301c34b967d46dd23d1e788c2978ea9072caf3dee0d241
[INFO] running `Command { std: "docker" "start" "-a" "2b37b02bbf1fca09cd301c34b967d46dd23d1e788c2978ea9072caf3dee0d241", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking mwcas v0.1.0
[INFO] [stderr]     Checking bztree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stdout] warning: associated function is never used: `first_kv`
[INFO] [stdout]    --> src/node.rs:477:12
[INFO] [stdout]     |
[INFO] [stdout] 477 |     pub fn first_kv<'g>(&'g self, guard: &'g Guard) -> Option<(&'g K, &'g V)>
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_next`
[INFO] [stdout]     --> src/node.rs:1209:12
[INFO] [stdout]      |
[INFO] [stdout] 1209 |     pub fn peek_next(&mut self) -> Option<(&'a K, &'a V)> {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]     Checking jemallocator v0.3.2
[INFO] [stdout] error: couldn't read benches/bztree_bench.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bztree` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2b37b02bbf1fca09cd301c34b967d46dd23d1e788c2978ea9072caf3dee0d241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b37b02bbf1fca09cd301c34b967d46dd23d1e788c2978ea9072caf3dee0d241", kill_on_drop: false }`
[INFO] [stdout] 2b37b02bbf1fca09cd301c34b967d46dd23d1e788c2978ea9072caf3dee0d241