[INFO] fetching crate memoize 0.3.0...
[INFO] testing memoize-0.3.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate memoize 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate memoize 0.3.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memoize 0.3.0
[INFO] finished tweaking crates.io crate memoize 0.3.0
[INFO] tweaked toml for crates.io crate memoize 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate memoize 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 4f2982164e745fa4eaef9f5269bdd38d8e45967dd3e71c3ea128f1cbf4f656fa
[INFO] running `Command { std: "docker" "start" "-a" "4f2982164e745fa4eaef9f5269bdd38d8e45967dd3e71c3ea128f1cbf4f656fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f2982164e745fa4eaef9f5269bdd38d8e45967dd3e71c3ea128f1cbf4f656fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f2982164e745fa4eaef9f5269bdd38d8e45967dd3e71c3ea128f1cbf4f656fa", kill_on_drop: false }`
[INFO] [stdout] 4f2982164e745fa4eaef9f5269bdd38d8e45967dd3e71c3ea128f1cbf4f656fa
[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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", 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] 7b8ff350f736a2f6ba83ea7ce228a01235c6b60b477a4086ff2782d236da5df0
[INFO] running `Command { std: "docker" "start" "-a" "7b8ff350f736a2f6ba83ea7ce228a01235c6b60b477a4086ff2782d236da5df0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memoize-inner v0.2.1
[INFO] [stderr]    Compiling memoize v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `Command { std: "docker" "inspect" "7b8ff350f736a2f6ba83ea7ce228a01235c6b60b477a4086ff2782d236da5df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b8ff350f736a2f6ba83ea7ce228a01235c6b60b477a4086ff2782d236da5df0", kill_on_drop: false }`
[INFO] [stdout] 7b8ff350f736a2f6ba83ea7ce228a01235c6b60b477a4086ff2782d236da5df0
[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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 518d8591c0865e87b262df57fd572d9eb3c1c8a2969ffb7926d5edd3fb3ccb95
[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" "518d8591c0865e87b262df57fd572d9eb3c1c8a2969ffb7926d5edd3fb3ccb95", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoize v0.3.0 (/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: field is never read: `s`
[INFO] [stdout]  --> examples/full_featured.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     s: String,
[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]  --> examples/full_featured.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]  --> examples/full_featured.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     b: bool,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `ComplexStruct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> examples/full_featured.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `i`
[INFO] [stdout]  --> examples/full_featured.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     i: Instant,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `ComplexStruct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> examples/full_featured.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.15s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/memoize-808d9aab8abe33f1)
[INFO] running `Command { std: "docker" "inspect" "518d8591c0865e87b262df57fd572d9eb3c1c8a2969ffb7926d5edd3fb3ccb95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "518d8591c0865e87b262df57fd572d9eb3c1c8a2969ffb7926d5edd3fb3ccb95", kill_on_drop: false }`
[INFO] [stdout] 518d8591c0865e87b262df57fd572d9eb3c1c8a2969ffb7926d5edd3fb3ccb95
[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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 081a36655eb2ffe58b0ac1ca7ef8059cb84c60482b8c98237079f9fac45ea6c0
[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" "081a36655eb2ffe58b0ac1ca7ef8059cb84c60482b8c98237079f9fac45ea6c0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `memoize::memoize`
[INFO] [stderr]  --> examples/full_featured.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use memoize::memoize;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> examples/full_featured.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]  --> examples/full_featured.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `s`
[INFO] [stderr]  --> examples/full_featured.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     s: String,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `ComplexStruct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]  --> examples/full_featured.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Debug, Clone)]
[INFO] [stderr]   |          ^^^^^  ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]  --> examples/full_featured.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     b: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `ComplexStruct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]  --> examples/full_featured.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Debug, Clone)]
[INFO] [stderr]   |          ^^^^^  ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `i`
[INFO] [stderr]  --> examples/full_featured.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     i: Instant,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `ComplexStruct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]  --> examples/full_featured.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Debug, Clone)]
[INFO] [stderr]   |          ^^^^^  ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `memoize` (example "full_featured") generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/memoize-808d9aab8abe33f1)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests memoize
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "081a36655eb2ffe58b0ac1ca7ef8059cb84c60482b8c98237079f9fac45ea6c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081a36655eb2ffe58b0ac1ca7ef8059cb84c60482b8c98237079f9fac45ea6c0", kill_on_drop: false }`
[INFO] [stdout] 081a36655eb2ffe58b0ac1ca7ef8059cb84c60482b8c98237079f9fac45ea6c0