[INFO] crate vecstorage 0.1.0 is already in cache
[INFO] testing vecstorage-0.1.0 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate vecstorage 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate vecstorage 0.1.0 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate vecstorage 0.1.0
[INFO] finished tweaking crates.io crate vecstorage 0.1.0
[INFO] tweaked toml for crates.io crate vecstorage 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d997e2879690e46b7bcd2cff7ecaf884bb8432863e63e0799aeb84ce59424847
[INFO] running `"docker" "start" "-a" "d997e2879690e46b7bcd2cff7ecaf884bb8432863e63e0799aeb84ce59424847"`
[INFO] [stderr]    Compiling vecstorage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `"docker" "inspect" "d997e2879690e46b7bcd2cff7ecaf884bb8432863e63e0799aeb84ce59424847"`
[INFO] running `"docker" "rm" "-f" "d997e2879690e46b7bcd2cff7ecaf884bb8432863e63e0799aeb84ce59424847"`
[INFO] [stdout] d997e2879690e46b7bcd2cff7ecaf884bb8432863e63e0799aeb84ce59424847
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fec793c07bd94286824ab9100f44f3217a3e704f5e69f5ad4ed4cf7655779b46
[INFO] running `"docker" "start" "-a" "fec793c07bd94286824ab9100f44f3217a3e704f5e69f5ad4ed4cf7655779b46"`
[INFO] [stderr]    Compiling vecstorage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `guard`
[INFO] [stderr]    --> src/lib.rs:254:9
[INFO] [stderr]     |
[INFO] [stderr] 254 |     let guard = v.vec_guard::<u64>();
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_guard`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "fec793c07bd94286824ab9100f44f3217a3e704f5e69f5ad4ed4cf7655779b46"`
[INFO] running `"docker" "rm" "-f" "fec793c07bd94286824ab9100f44f3217a3e704f5e69f5ad4ed4cf7655779b46"`
[INFO] [stdout] fec793c07bd94286824ab9100f44f3217a3e704f5e69f5ad4ed4cf7655779b46
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a0d1f7778b2c64043769a4ff4a47c4b066d43e017027f58fc5110bf219c4e770
[INFO] running `"docker" "start" "-a" "a0d1f7778b2c64043769a4ff4a47c4b066d43e017027f58fc5110bf219c4e770"`
[INFO] [stderr] warning: unused variable: `guard`
[INFO] [stderr]    --> src/lib.rs:254:9
[INFO] [stderr]     |
[INFO] [stderr] 254 |     let guard = v.vec_guard::<u64>();
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_guard`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/vecstorage-f3bc7501981d8815
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test vecstorage_implements_send ... ok
[INFO] [stdout] test vec_storage_mut_common_use_cases ... ok
[INFO] [stdout] test vecstorage_implements_sync ... ok
[INFO] [stdout] test mem_forgetting_guard_does_not_lead_to_panic ... ok
[INFO] [stdout] test mem_forgetting_guard_leads_to_panic_with_new_guard ... ok
[INFO] [stdout] test creating_guard_with_different_size_gives_leads_to_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vecstorage
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 7) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 24) ... ok
[INFO] [stdout] test src/lib.rs -  (line 48) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a0d1f7778b2c64043769a4ff4a47c4b066d43e017027f58fc5110bf219c4e770"`
[INFO] running `"docker" "rm" "-f" "a0d1f7778b2c64043769a4ff4a47c4b066d43e017027f58fc5110bf219c4e770"`
[INFO] [stdout] a0d1f7778b2c64043769a4ff4a47c4b066d43e017027f58fc5110bf219c4e770