[INFO] cloning repository https://github.com/TENX-S/collatz_conjecture
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TENX-S/collatz_conjecture" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTENX-S%2Fcollatz_conjecture", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTENX-S%2Fcollatz_conjecture'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2460adc17896a2f2754d2f900f48f0029c38b465
[INFO] testing TENX-S/collatz_conjecture against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTENX-S%2Fcollatz_conjecture" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TENX-S/collatz_conjecture on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/TENX-S/collatz_conjecture
[INFO] finished tweaking git repo https://github.com/TENX-S/collatz_conjecture
[INFO] tweaked toml for git repo https://github.com/TENX-S/collatz_conjecture written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/TENX-S/collatz_conjecture already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e10ea309964962891ecc629e8e2e88f3db5af30ef5e91d1fc91ea16342990186
[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" "e10ea309964962891ecc629e8e2e88f3db5af30ef5e91d1fc91ea16342990186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e10ea309964962891ecc629e8e2e88f3db5af30ef5e91d1fc91ea16342990186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e10ea309964962891ecc629e8e2e88f3db5af30ef5e91d1fc91ea16342990186", kill_on_drop: false }`
[INFO] [stdout] e10ea309964962891ecc629e8e2e88f3db5af30ef5e91d1fc91ea16342990186
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4e1d9b3abf1c72eb39df36c47aa0eb2daa9821c2d7b8c67a4bbd2b17cf753c7
[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" "d4e1d9b3abf1c72eb39df36c47aa0eb2daa9821c2d7b8c67a4bbd2b17cf753c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.22
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling mimalloc v0.1.26
[INFO] [stderr]    Compiling collatz_conjecture v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `target` is never read
[INFO] [stdout]   --> src/bin/single_threaded_without_heap.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             target += 1;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.45s
[INFO] running `Command { std: "docker" "inspect" "d4e1d9b3abf1c72eb39df36c47aa0eb2daa9821c2d7b8c67a4bbd2b17cf753c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e1d9b3abf1c72eb39df36c47aa0eb2daa9821c2d7b8c67a4bbd2b17cf753c7", kill_on_drop: false }`
[INFO] [stdout] d4e1d9b3abf1c72eb39df36c47aa0eb2daa9821c2d7b8c67a4bbd2b17cf753c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c52488ec0a1855960f452cf51a960255f946c979b84bfb00daf1f2d724b5f4d
[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" "7c52488ec0a1855960f452cf51a960255f946c979b84bfb00daf1f2d724b5f4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling collatz_conjecture v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `target` is never read
[INFO] [stdout]   --> src/bin/single_threaded_without_heap.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             target += 1;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "7c52488ec0a1855960f452cf51a960255f946c979b84bfb00daf1f2d724b5f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c52488ec0a1855960f452cf51a960255f946c979b84bfb00daf1f2d724b5f4d", kill_on_drop: false }`
[INFO] [stdout] 7c52488ec0a1855960f452cf51a960255f946c979b84bfb00daf1f2d724b5f4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", 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] 7830409af147a0042d205c4bf58a7c5046ecbd4bd9f4d75c388ca7d2655c1fdd
[INFO] running `Command { std: "docker" "start" "-a" "7830409af147a0042d205c4bf58a7c5046ecbd4bd9f4d75c388ca7d2655c1fdd", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `target` is never read
[INFO] [stderr]   --> src/bin/single_threaded_without_heap.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |             target += 1;
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `collatz_conjecture` (bin "single_threaded_without_heap" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parallel-5687c63a5636d639)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parallel_without_heap-9af3efc719803ead)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parallel_without_verify-66bce571e0e16c84)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/single_threaded-693cd787e9e5881b)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/single_threaded_without_heap-bf8386e722cee984)
[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; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7830409af147a0042d205c4bf58a7c5046ecbd4bd9f4d75c388ca7d2655c1fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7830409af147a0042d205c4bf58a7c5046ecbd4bd9f4d75c388ca7d2655c1fdd", kill_on_drop: false }`
[INFO] [stdout] 7830409af147a0042d205c4bf58a7c5046ecbd4bd9f4d75c388ca7d2655c1fdd