[INFO] cloning repository https://github.com/gittysachin/RUST-ASYNC-REDIS [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gittysachin/RUST-ASYNC-REDIS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgittysachin%2FRUST-ASYNC-REDIS"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgittysachin%2FRUST-ASYNC-REDIS'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 77969fe2c595de6ecb585898718509476eb683da [INFO] checking gittysachin/RUST-ASYNC-REDIS against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgittysachin%2FRUST-ASYNC-REDIS" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gittysachin/RUST-ASYNC-REDIS on toolchain 914adf04af1c1a984707f778da3d04590c03d144 [INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/gittysachin/RUST-ASYNC-REDIS [INFO] finished tweaking git repo https://github.com/gittysachin/RUST-ASYNC-REDIS [INFO] tweaked toml for git repo https://github.com/gittysachin/RUST-ASYNC-REDIS written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/gittysachin/RUST-ASYNC-REDIS already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 3c0799787da9fa0739f1eb93102795f71ea2c4e172b7b9de2a5f1cd228bf41f8 [INFO] running `"docker" "start" "-a" "3c0799787da9fa0739f1eb93102795f71ea2c4e172b7b9de2a5f1cd228bf41f8"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling syn v1.0.19 [INFO] [stderr] Checking once_cell v1.3.1 [INFO] [stderr] Checking futures-io v0.3.5 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking async-task v1.3.1 [INFO] [stderr] Checking log v0.4.8 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking kv-log-macro v1.0.5 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking async-std v1.5.0 [INFO] [stderr] Checking rust-async-redis v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:86:13 [INFO] [stderr] | [INFO] [stderr] 86 | fn from(e: io::Error) -> Self { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `SimpleString` [INFO] [stderr] --> src/main.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | SimpleString(String), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Error` [INFO] [stderr] --> src/main.rs:93:5 [INFO] [stderr] | [INFO] [stderr] 93 | Error(Vec), [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Integer` [INFO] [stderr] --> src/main.rs:94:5 [INFO] [stderr] | [INFO] [stderr] 94 | Integer(i64), [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:86:13 [INFO] [stderr] | [INFO] [stderr] 86 | fn from(e: io::Error) -> Self { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `SimpleString` [INFO] [stderr] --> src/main.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | SimpleString(String), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Error` [INFO] [stderr] --> src/main.rs:93:5 [INFO] [stderr] | [INFO] [stderr] 93 | Error(Vec), [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Integer` [INFO] [stderr] --> src/main.rs:94:5 [INFO] [stderr] | [INFO] [stderr] 94 | Integer(i64), [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 29.08s [INFO] running `"docker" "inspect" "3c0799787da9fa0739f1eb93102795f71ea2c4e172b7b9de2a5f1cd228bf41f8"` [INFO] running `"docker" "rm" "-f" "3c0799787da9fa0739f1eb93102795f71ea2c4e172b7b9de2a5f1cd228bf41f8"` [INFO] [stdout] 3c0799787da9fa0739f1eb93102795f71ea2c4e172b7b9de2a5f1cd228bf41f8