[INFO] fetching crate memoize 0.3.1...
[INFO] checking memoize-0.3.1 against master#98e1f041b6e33598a18edb928ec9db93a850c6cb for pr-101680
[INFO] extracting crate memoize 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate memoize 0.3.1 on toolchain 98e1f041b6e33598a18edb928ec9db93a850c6cb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+98e1f041b6e33598a18edb928ec9db93a850c6cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memoize 0.3.1
[INFO] finished tweaking crates.io crate memoize 0.3.1
[INFO] tweaked toml for crates.io crate memoize 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate memoize 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+98e1f041b6e33598a18edb928ec9db93a850c6cb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.90
[INFO] [stderr]   Downloaded memoize-inner v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+98e1f041b6e33598a18edb928ec9db93a850c6cb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 812b86f110bdc8aa29e5552b8b83ab2079f4c56cbbf19e3a91bc13c9a983603c
[INFO] running `Command { std: "docker" "start" "-a" "812b86f110bdc8aa29e5552b8b83ab2079f4c56cbbf19e3a91bc13c9a983603c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "812b86f110bdc8aa29e5552b8b83ab2079f4c56cbbf19e3a91bc13c9a983603c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "812b86f110bdc8aa29e5552b8b83ab2079f4c56cbbf19e3a91bc13c9a983603c", kill_on_drop: false }`
[INFO] [stdout] 812b86f110bdc8aa29e5552b8b83ab2079f4c56cbbf19e3a91bc13c9a983603c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+98e1f041b6e33598a18edb928ec9db93a850c6cb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a26b0edba669123804c18b1676cb444cecc0c219e2ea7b509bcb27784865a27c
[INFO] running `Command { std: "docker" "start" "-a" "a26b0edba669123804c18b1676cb444cecc0c219e2ea7b509bcb27784865a27c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling memoize-inner v0.2.1
[INFO] [stderr]     Checking memoize v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `memoize::memoize`
[INFO] [stdout]  --> examples/full_featured.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use memoize::memoize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> examples/full_featured.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> examples/full_featured.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path1`
[INFO] [stdout]  --> examples/issue13.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn do_something(path1: PathBuf, path2: PathBuf) -> String {
[INFO] [stdout]   |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_path1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path2`
[INFO] [stdout]  --> examples/issue13.rs:7:37
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn do_something(path1: PathBuf, path2: PathBuf) -> String {
[INFO] [stdout]   |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_path2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `s`, `b` and `i` are never read
[INFO] [stdout]  --> examples/full_featured.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct ComplexStruct {
[INFO] [stdout]   |        ------------- fields in this struct
[INFO] [stdout] 7 |     s: String,
[INFO] [stdout]   |     ^
[INFO] [stdout] 8 |     b: bool,
[INFO] [stdout]   |     ^
[INFO] [stdout] 9 |     i: Instant,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]   = note: `ComplexStruct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.11s
[INFO] running `Command { std: "docker" "inspect" "a26b0edba669123804c18b1676cb444cecc0c219e2ea7b509bcb27784865a27c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26b0edba669123804c18b1676cb444cecc0c219e2ea7b509bcb27784865a27c", kill_on_drop: false }`
[INFO] [stdout] a26b0edba669123804c18b1676cb444cecc0c219e2ea7b509bcb27784865a27c