[INFO] updating cached repository https://github.com/loriopatrick/mem-help [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] c78a24327a503add587f9dd0e72ec2d6bb465cb3 [INFO] checking loriopatrick/mem-help against try#d93021f5faa26e4f9d2719e79f9974e06aa40e17 for pr-71873 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floriopatrick%2Fmem-help" "/workspace/builds/worker-13/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/loriopatrick/mem-help on toolchain d93021f5faa26e4f9d2719e79f9974e06aa40e17 [INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/loriopatrick/mem-help [INFO] finished tweaking git repo https://github.com/loriopatrick/mem-help [INFO] tweaked toml for git repo https://github.com/loriopatrick/mem-help written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/loriopatrick/mem-help already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "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] f9ae8853b8f90e162b93e26b382b270bd60713da3267954e62174f883b7c7a52 [INFO] running `"docker" "start" "-a" "f9ae8853b8f90e162b93e26b382b270bd60713da3267954e62174f883b7c7a52"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.13 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking arc-swap v0.4.4 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking log v0.4.8 [INFO] [stderr] Compiling proc-macro2 v1.0.7 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling tokio-macros v0.2.3 [INFO] [stderr] Checking tokio v0.2.9 [INFO] [stderr] Compiling futures-macro v0.3.1 [INFO] [stderr] Checking futures-util v0.3.1 [INFO] [stderr] Checking futures-executor v0.3.1 [INFO] [stderr] Checking futures v0.3.1 [INFO] [stderr] Checking mem-help v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `Sender` [INFO] [stderr] --> src/main.rs:5:44 [INFO] [stderr] | [INFO] [stderr] 5 | use tokio::sync::mpsc::{channel, Receiver, Sender}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Sender` [INFO] [stderr] --> src/main.rs:5:44 [INFO] [stderr] | [INFO] [stderr] 5 | use tokio::sync::mpsc::{channel, Receiver, Sender}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | for i in 0..500000 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | for i in 0..500000 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/main.rs:24:21 [INFO] [stderr] | [INFO] [stderr] 24 | std::mem::replace(&mut self.items, Vec::new()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:52:17 [INFO] [stderr] | [INFO] [stderr] 52 | sender.send("Hello".to_string()).await; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | sender.send("Hello".to_string()).await; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/main.rs:24:21 [INFO] [stderr] | [INFO] [stderr] 24 | std::mem::replace(&mut self.items, Vec::new()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:52:17 [INFO] [stderr] | [INFO] [stderr] 52 | sender.send("Hello".to_string()).await; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | sender.send("Hello".to_string()).await; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 40.30s [INFO] running `"docker" "inspect" "f9ae8853b8f90e162b93e26b382b270bd60713da3267954e62174f883b7c7a52"` [INFO] running `"docker" "rm" "-f" "f9ae8853b8f90e162b93e26b382b270bd60713da3267954e62174f883b7c7a52"` [INFO] [stdout] f9ae8853b8f90e162b93e26b382b270bd60713da3267954e62174f883b7c7a52