[INFO] fetching crate shalc 0.1.0...
[INFO] checking shalc-0.1.0 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate shalc 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate shalc 0.1.0 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shalc 0.1.0
[INFO] finished tweaking crates.io crate shalc 0.1.0
[INFO] tweaked toml for crates.io crate shalc 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog v2.7.0
[INFO] [stderr]   Downloaded arc-swap v1.3.0
[INFO] [stderr]   Downloaded slog-scope v4.4.0
[INFO] [stderr]   Downloaded slog-stdlog v4.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22d7c0410b89419b99d695097c620da8870ebef0f62d75c38dcb9b2fea581348
[INFO] running `Command { std: "docker" "start" "-a" "22d7c0410b89419b99d695097c620da8870ebef0f62d75c38dcb9b2fea581348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22d7c0410b89419b99d695097c620da8870ebef0f62d75c38dcb9b2fea581348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22d7c0410b89419b99d695097c620da8870ebef0f62d75c38dcb9b2fea581348", kill_on_drop: false }`
[INFO] [stdout] 22d7c0410b89419b99d695097c620da8870ebef0f62d75c38dcb9b2fea581348
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06d734c4e310eb5589cd60a443964ae070f4782396d36ca9dbe3a0d365cfa38b
[INFO] running `Command { std: "docker" "start" "-a" "06d734c4e310eb5589cd60a443964ae070f4782396d36ca9dbe3a0d365cfa38b", 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] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking slog-scope v4.4.0
[INFO] [stderr]     Checking slog-stdlog v4.1.0
[INFO] [stderr]     Checking shalc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `prev_local_calcs`
[INFO] [stdout]    --> src/lib.rs:373:13
[INFO] [stdout]     |
[INFO] [stdout] 373 |             prev_local_calcs: &mut Option<Self::LocalCalcs>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_local_calcs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_calcs`
[INFO] [stdout]    --> src/lib.rs:378:30
[INFO] [stdout]     |
[INFO] [stdout] 378 |         fn update(&mut self, local_calcs: &mut Option<Self::LocalCalcs>) -> calculation::State {
[INFO] [stdout]     |                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_calcs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "06d734c4e310eb5589cd60a443964ae070f4782396d36ca9dbe3a0d365cfa38b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06d734c4e310eb5589cd60a443964ae070f4782396d36ca9dbe3a0d365cfa38b", kill_on_drop: false }`
[INFO] [stdout] 06d734c4e310eb5589cd60a443964ae070f4782396d36ca9dbe3a0d365cfa38b