[INFO] updating cached repository https://github.com/nikkokun/s2pl
[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] 63d64196cd912b4dc8220f23df8c41976cb8f290
[INFO] testing nikkokun/s2pl against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikkokun%2Fs2pl" "/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/nikkokun/s2pl on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nikkokun/s2pl
[INFO] finished tweaking git repo https://github.com/nikkokun/s2pl
[INFO] tweaked toml for git repo https://github.com/nikkokun/s2pl written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/nikkokun/s2pl already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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=warn" "-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" "+beta-2020-06-03" "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] 2aeaa0bb2329c74ff8243e1e69158fd466d4c42ede44a8620195f6ae9830f80a
[INFO] running `"docker" "start" "-a" "2aeaa0bb2329c74ff8243e1e69158fd466d4c42ede44a8620195f6ae9830f80a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rdxsort v0.3.0
[INFO] [stderr]    Compiling quickersort v3.0.1
[INFO] [stderr]    Compiling s2pl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find function `spawn` in crate `std`
[INFO] [stderr]    --> src/main.rs:115:23
[INFO] [stderr]     |
[INFO] [stderr] 115 |     let thread = std::spawn(move || worker(&mut table, &thread_transactions[0]));
[INFO] [stderr]     |                       ^^^^^ not found in `std`
[INFO] [stderr]     |
[INFO] [stderr] help: consider importing this function
[INFO] [stderr]     |
[INFO] [stderr] 1   | use std::thread::spawn;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `LockResult`, `MutexGuard`
[INFO] [stderr]  --> src/main.rs:5:24
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{Mutex, MutexGuard, LockResult};
[INFO] [stderr]   |                        ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::mpsc::channel`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::sync::mpsc::channel;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/main.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 |     lock: Mutex<(i32)>
[INFO] [stderr]    |                 ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `s2pl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2aeaa0bb2329c74ff8243e1e69158fd466d4c42ede44a8620195f6ae9830f80a"`
[INFO] running `"docker" "rm" "-f" "2aeaa0bb2329c74ff8243e1e69158fd466d4c42ede44a8620195f6ae9830f80a"`
[INFO] [stdout] 2aeaa0bb2329c74ff8243e1e69158fd466d4c42ede44a8620195f6ae9830f80a