[INFO] updating cached repository https://github.com/juniuszhou/rust-local [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 473c737a3c73b27beda6a61aa1d6690a0f5fba03 [INFO] checking juniuszhou/rust-local against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuniuszhou%2Frust-local" "/workspace/builds/worker-11/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/juniuszhou/rust-local on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8 [INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/juniuszhou/rust-local [INFO] finished tweaking git repo https://github.com/juniuszhou/rust-local [INFO] tweaked toml for git repo https://github.com/juniuszhou/rust-local written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/juniuszhou/rust-local already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "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] e716a036ccdfea2cec696cf6561f1a85851c1fe09cbaf24795b45bade1d40019 [INFO] running `"docker" "start" "-a" "e716a036ccdfea2cec696cf6561f1a85851c1fe09cbaf24795b45bade1d40019"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking futures-timer v2.0.2 [INFO] [stderr] Checking futures-io v0.3.1 [INFO] [stderr] Checking once_cell v1.2.0 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking async-macros v2.0.0 [INFO] [stderr] Checking crossbeam-utils v0.7.0 [INFO] [stderr] Checking async-task v1.0.0 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking regex-automata v0.1.8 [INFO] [stderr] Checking rand_xoshiro v0.1.0 [INFO] [stderr] Checking num_cpus v1.11.1 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking tinytemplate v1.0.2 [INFO] [stderr] Checking crossbeam-epoch v0.8.0 [INFO] [stderr] Checking crossbeam-queue v0.2.0 [INFO] [stderr] Checking crossbeam-channel v0.4.0 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking mio v0.6.20 [INFO] [stderr] Checking kv-log-macro v1.0.4 [INFO] [stderr] Checking csv-core v0.1.6 [INFO] [stderr] Checking bstr v0.2.8 [INFO] [stderr] Checking rayon-core v1.6.1 [INFO] [stderr] Checking criterion-plot v0.3.1 [INFO] [stderr] Checking rayon v1.2.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking async-std v1.1.0 [INFO] [stderr] Checking csv v1.1.1 [INFO] [stderr] Checking criterion v0.2.11 [INFO] [stderr] Checking rust-local v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `async_std::io` [INFO] [stderr] --> src/main.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use async_std::io; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::io` [INFO] [stderr] --> src/main.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use async_std::io; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `reader` [INFO] [stderr] --> src/main.rs:13:14 [INFO] [stderr] | [INFO] [stderr] 13 | let (reader, writer) = &mut (&stream, &stream); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | writer.write_all(b"Hello from Jun").await; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused variable: `reader` [INFO] [stderr] --> src/main.rs:13:14 [INFO] [stderr] | [INFO] [stderr] 13 | let (reader, writer) = &mut (&stream, &stream); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | writer.write_all(b"Hello from Jun").await; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 23.73s [INFO] running `"docker" "inspect" "e716a036ccdfea2cec696cf6561f1a85851c1fe09cbaf24795b45bade1d40019"` [INFO] running `"docker" "rm" "-f" "e716a036ccdfea2cec696cf6561f1a85851c1fe09cbaf24795b45bade1d40019"` [INFO] [stdout] e716a036ccdfea2cec696cf6561f1a85851c1fe09cbaf24795b45bade1d40019