[INFO] fetching crate inner-mem-cache 0.1.3...
[INFO] testing inner-mem-cache-0.1.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate inner-mem-cache 0.1.3 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate inner-mem-cache 0.1.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-27/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e69fca073684b27e72ff2be54f85bbc3fe6dc61309c235aa23a65cc8c7e9177
[INFO] running `Command { std: "docker" "start" "-a" "5e69fca073684b27e72ff2be54f85bbc3fe6dc61309c235aa23a65cc8c7e9177", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e69fca073684b27e72ff2be54f85bbc3fe6dc61309c235aa23a65cc8c7e9177", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e69fca073684b27e72ff2be54f85bbc3fe6dc61309c235aa23a65cc8c7e9177", kill_on_drop: false }`
[INFO] [stdout] 5e69fca073684b27e72ff2be54f85bbc3fe6dc61309c235aa23a65cc8c7e9177
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8122aa7d338e13486528e0b4f3652d9b9be41e25c1d766523be432d3dd56cacf
[INFO] running `Command { std: "docker" "start" "-a" "8122aa7d338e13486528e0b4f3652d9b9be41e25c1d766523be432d3dd56cacf", 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 0.82s
[INFO] running `Command { std: "docker" "inspect" "8122aa7d338e13486528e0b4f3652d9b9be41e25c1d766523be432d3dd56cacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8122aa7d338e13486528e0b4f3652d9b9be41e25c1d766523be432d3dd56cacf", kill_on_drop: false }`
[INFO] [stdout] 8122aa7d338e13486528e0b4f3652d9b9be41e25c1d766523be432d3dd56cacf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebaac949bb492a49d7e9d78d1287c5a924cbaf048e1bb8cfe1b80337c07b780a
[INFO] running `Command { std: "docker" "start" "-a" "ebaac949bb492a49d7e9d78d1287c5a924cbaf048e1bb8cfe1b80337c07b780a", 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ebaac949bb492a49d7e9d78d1287c5a924cbaf048e1bb8cfe1b80337c07b780a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebaac949bb492a49d7e9d78d1287c5a924cbaf048e1bb8cfe1b80337c07b780a", kill_on_drop: false }`
[INFO] [stdout] ebaac949bb492a49d7e9d78d1287c5a924cbaf048e1bb8cfe1b80337c07b780a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7488a8b45fe9a72b911cf0cc7373fb879c952c1d0b242e136f9d8bbb5b960efd
[INFO] running `Command { std: "docker" "start" "-a" "7488a8b45fe9a72b911cf0cc7373fb879c952c1d0b242e136f9d8bbb5b960efd", 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] [stdout] 
[INFO] [stderr] warning: `inner-mem-cache` (lib test) generated 1 warning (1 duplicate)
[INFO] [stdout] running 1 test
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/inner_mem_cache-c7ce3ab78e9a6499)
[INFO] [stderr]    Doc-tests inner-mem-cache
[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] [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" "7488a8b45fe9a72b911cf0cc7373fb879c952c1d0b242e136f9d8bbb5b960efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7488a8b45fe9a72b911cf0cc7373fb879c952c1d0b242e136f9d8bbb5b960efd", kill_on_drop: false }`
[INFO] [stdout] 7488a8b45fe9a72b911cf0cc7373fb879c952c1d0b242e136f9d8bbb5b960efd