[INFO] fetching crate sttt 0.1.3...
[INFO] checking sttt-0.1.3 against beta for pr-78714
[INFO] extracting crate sttt 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate sttt 0.1.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sttt 0.1.3
[INFO] finished tweaking crates.io crate sttt 0.1.3
[INFO] tweaked toml for crates.io crate sttt 0.1.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate sttt 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 338439f9b62e87a8f444e7bfc8fc8db87457721e985df8cb9c41c047f4e72cd5
[INFO] running `Command { std: "docker" "start" "-a" "338439f9b62e87a8f444e7bfc8fc8db87457721e985df8cb9c41c047f4e72cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "338439f9b62e87a8f444e7bfc8fc8db87457721e985df8cb9c41c047f4e72cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "338439f9b62e87a8f444e7bfc8fc8db87457721e985df8cb9c41c047f4e72cd5", kill_on_drop: false }`
[INFO] [stdout] 338439f9b62e87a8f444e7bfc8fc8db87457721e985df8cb9c41c047f4e72cd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a52a547ae80af31cd2d2ace0fbcef68b5c42115e4e624a89ca019addba189c80
[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" "a52a547ae80af31cd2d2ace0fbcef68b5c42115e4e624a89ca019addba189c80", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking ordered-float v2.0.0
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking sttt v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] error[E0432]: unresolved import `sttt::mcts::old_move_mcts`
[INFO] [stdout]  --> benches/mcts.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sttt::mcts::old_move_mcts;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `old_move_mcts` in `mcts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `black_box`
[INFO] [stdout]  --> benches/mcts.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{black_box, criterion_group, criterion_main, Criterion};
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sttt`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a52a547ae80af31cd2d2ace0fbcef68b5c42115e4e624a89ca019addba189c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a52a547ae80af31cd2d2ace0fbcef68b5c42115e4e624a89ca019addba189c80", kill_on_drop: false }`
[INFO] [stdout] a52a547ae80af31cd2d2ace0fbcef68b5c42115e4e624a89ca019addba189c80