[INFO] cloning repository https://github.com/mersinvald/rust-vs-haskell-special-olimpiade
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mersinvald/rust-vs-haskell-special-olimpiade" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmersinvald%2Frust-vs-haskell-special-olimpiade", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmersinvald%2Frust-vs-haskell-special-olimpiade'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a78ecf972533a8a5b47234fd8bf5631dd63c0cd3
[INFO] testing mersinvald/rust-vs-haskell-special-olimpiade against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmersinvald%2Frust-vs-haskell-special-olimpiade" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade
[INFO] finished tweaking git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade
[INFO] tweaked toml for git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mersinvald/rust-vs-haskell-special-olimpiade already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 912f4aead2e21ac41443fc653a4b4fd87a3a96035961d996a4a7c99430a22f9d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "912f4aead2e21ac41443fc653a4b4fd87a3a96035961d996a4a7c99430a22f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "912f4aead2e21ac41443fc653a4b4fd87a3a96035961d996a4a7c99430a22f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "912f4aead2e21ac41443fc653a4b4fd87a3a96035961d996a4a7c99430a22f9d", kill_on_drop: false }`
[INFO] [stdout] 912f4aead2e21ac41443fc653a4b4fd87a3a96035961d996a4a7c99430a22f9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 393f580f6d6bad5db15ec0019d9729f9d8b2449d9a69db5493aeaaba6c241f17
[INFO] running `Command { std: "docker" "start" "-a" "393f580f6d6bad5db15ec0019d9729f9d8b2449d9a69db5493aeaaba6c241f17", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-vs-haskell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if unsafe { unlikely(flush_predicate) } {
[INFO] [stdout]    |            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "393f580f6d6bad5db15ec0019d9729f9d8b2449d9a69db5493aeaaba6c241f17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "393f580f6d6bad5db15ec0019d9729f9d8b2449d9a69db5493aeaaba6c241f17", kill_on_drop: false }`
[INFO] [stdout] 393f580f6d6bad5db15ec0019d9729f9d8b2449d9a69db5493aeaaba6c241f17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca77a0932fca298fe9dccbf7e4c1c86a5fee1b16c4890de54e68a741907c83af
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ca77a0932fca298fe9dccbf7e4c1c86a5fee1b16c4890de54e68a741907c83af", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-vs-haskell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if unsafe { unlikely(flush_predicate) } {
[INFO] [stdout]    |            ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "ca77a0932fca298fe9dccbf7e4c1c86a5fee1b16c4890de54e68a741907c83af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca77a0932fca298fe9dccbf7e4c1c86a5fee1b16c4890de54e68a741907c83af", kill_on_drop: false }`
[INFO] [stdout] ca77a0932fca298fe9dccbf7e4c1c86a5fee1b16c4890de54e68a741907c83af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1517c9a9e38cfa8714263e4aab9c0415a665555abf047e4ad4e3d093bf11b3e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c1517c9a9e38cfa8714263e4aab9c0415a665555abf047e4ad4e3d093bf11b3e", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/main.rs:90:12
[INFO] [stderr]    |
[INFO] [stderr] 90 |         if unsafe { unlikely(flush_predicate) } {
[INFO] [stderr]    |            ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_vs_haskell-a7b22a4c281051b6
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c1517c9a9e38cfa8714263e4aab9c0415a665555abf047e4ad4e3d093bf11b3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1517c9a9e38cfa8714263e4aab9c0415a665555abf047e4ad4e3d093bf11b3e", kill_on_drop: false }`
[INFO] [stdout] c1517c9a9e38cfa8714263e4aab9c0415a665555abf047e4ad4e3d093bf11b3e