[INFO] fetching crate inner-mem-cache 0.1.3...
[INFO] testing inner-mem-cache-0.1.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate inner-mem-cache 0.1.3 into /workspace/builds/worker-62/source
[INFO] validating manifest of crates.io crate inner-mem-cache 0.1.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate inner-mem-cache 0.1.3
[INFO] finished tweaking crates.io crate inner-mem-cache 0.1.3
[INFO] tweaked toml for crates.io crate inner-mem-cache 0.1.3 written to /workspace/builds/worker-62/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "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-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d19be2220a942619e32ae154c5c952da256cfa24fc0b57d6da4fd07735c18e9
[INFO] running `Command { std: "docker" "start" "-a" "1d19be2220a942619e32ae154c5c952da256cfa24fc0b57d6da4fd07735c18e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d19be2220a942619e32ae154c5c952da256cfa24fc0b57d6da4fd07735c18e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d19be2220a942619e32ae154c5c952da256cfa24fc0b57d6da4fd07735c18e9", kill_on_drop: false }`
[INFO] [stdout] 1d19be2220a942619e32ae154c5c952da256cfa24fc0b57d6da4fd07735c18e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e28924b46bacf2946b9680007509ef9f769058b688e6add0daf4877490e7bf6c
[INFO] running `Command { std: "docker" "start" "-a" "e28924b46bacf2946b9680007509ef9f769058b688e6add0daf4877490e7bf6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling inner-mem-cache v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/timeoutset.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut time_list = &mut self.time_list;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "e28924b46bacf2946b9680007509ef9f769058b688e6add0daf4877490e7bf6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e28924b46bacf2946b9680007509ef9f769058b688e6add0daf4877490e7bf6c", kill_on_drop: false }`
[INFO] [stdout] e28924b46bacf2946b9680007509ef9f769058b688e6add0daf4877490e7bf6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 051cefadfd2dea1ed9c6470a27b3289e600dbe03d4bc75c26de00c4033c5f1b6
[INFO] running `Command { std: "docker" "start" "-a" "051cefadfd2dea1ed9c6470a27b3289e600dbe03d4bc75c26de00c4033c5f1b6", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/timeoutset.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut time_list = &mut self.time_list;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling inner-mem-cache v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/timeoutset.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut time_list = &mut self.time_list;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.67s
[INFO] running `Command { std: "docker" "inspect" "051cefadfd2dea1ed9c6470a27b3289e600dbe03d4bc75c26de00c4033c5f1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "051cefadfd2dea1ed9c6470a27b3289e600dbe03d4bc75c26de00c4033c5f1b6", kill_on_drop: false }`
[INFO] [stdout] 051cefadfd2dea1ed9c6470a27b3289e600dbe03d4bc75c26de00c4033c5f1b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 57235110f10bc7ebb7d3d9b8101b2bdde65682bd484c5937b723ec7a6aa94fb0
[INFO] running `Command { std: "docker" "start" "-a" "57235110f10bc7ebb7d3d9b8101b2bdde65682bd484c5937b723ec7a6aa94fb0", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/timeoutset.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut time_list = &mut self.time_list;
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `inner-mem-cache` (lib) generated 1 warning
[INFO] [stderr] warning: `inner-mem-cache` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/inner_mem_cache-7c12e8f049e367e6)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test01 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests inner-mem-cache
[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" "57235110f10bc7ebb7d3d9b8101b2bdde65682bd484c5937b723ec7a6aa94fb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57235110f10bc7ebb7d3d9b8101b2bdde65682bd484c5937b723ec7a6aa94fb0", kill_on_drop: false }`
[INFO] [stdout] 57235110f10bc7ebb7d3d9b8101b2bdde65682bd484c5937b723ec7a6aa94fb0