[INFO] fetching crate sputnikvm-bigint 0.2.0...
[INFO] testing sputnikvm-bigint-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate sputnikvm-bigint 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate sputnikvm-bigint 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sputnikvm-bigint 0.2.0
[INFO] finished tweaking crates.io crate sputnikvm-bigint 0.2.0
[INFO] tweaked toml for crates.io crate sputnikvm-bigint 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61b96c9e153a311bfc3bd7258627843f2b2040770a1dc261f954369468135660
[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" "61b96c9e153a311bfc3bd7258627843f2b2040770a1dc261f954369468135660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61b96c9e153a311bfc3bd7258627843f2b2040770a1dc261f954369468135660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61b96c9e153a311bfc3bd7258627843f2b2040770a1dc261f954369468135660", kill_on_drop: false }`
[INFO] [stdout] 61b96c9e153a311bfc3bd7258627843f2b2040770a1dc261f954369468135660
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f851d0c90f5275fe778e9a45bac96750484b2d4db1b141ca32fcc0f10e5af134
[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" "f851d0c90f5275fe778e9a45bac96750484b2d4db1b141ca32fcc0f10e5af134", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling heapsize v0.3.9
[INFO] [stderr]    Compiling elastic-array v0.7.0
[INFO] [stderr]    Compiling sputnikvm-rlp v0.2.0
[INFO] [stderr]    Compiling sputnikvm-bigint v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `ZERO_BIG_DIGIT`
[INFO] [stdout]   --> src/algorithms.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub const ZERO_BIG_DIGIT: BigDigit = 0;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_doublebigdigit`
[INFO] [stdout]   --> src/algorithms.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn to_doublebigdigit(hi: BigDigit, lo: BigDigit) -> DoubleBigDigit {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inc`
[INFO] [stdout]   --> src/algorithms.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn inc(a: &mut [BigDigit]) -> BigDigit {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "f851d0c90f5275fe778e9a45bac96750484b2d4db1b141ca32fcc0f10e5af134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f851d0c90f5275fe778e9a45bac96750484b2d4db1b141ca32fcc0f10e5af134", kill_on_drop: false }`
[INFO] [stdout] f851d0c90f5275fe778e9a45bac96750484b2d4db1b141ca32fcc0f10e5af134
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e468f008d5ff53506c7e367e644f3bc72df13909b46d71cd5536aedf2fe4094
[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" "8e468f008d5ff53506c7e367e644f3bc72df13909b46d71cd5536aedf2fe4094", kill_on_drop: false }`
[INFO] [stderr]    Compiling sputnikvm-bigint v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `ZERO_BIG_DIGIT`
[INFO] [stdout]   --> src/algorithms.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub const ZERO_BIG_DIGIT: BigDigit = 0;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_doublebigdigit`
[INFO] [stdout]   --> src/algorithms.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn to_doublebigdigit(hi: BigDigit, lo: BigDigit) -> DoubleBigDigit {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inc`
[INFO] [stdout]   --> src/algorithms.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn inc(a: &mut [BigDigit]) -> BigDigit {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ZERO_BIG_DIGIT`
[INFO] [stdout]   --> src/algorithms.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub const ZERO_BIG_DIGIT: BigDigit = 0;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_doublebigdigit`
[INFO] [stdout]   --> src/algorithms.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn to_doublebigdigit(hi: BigDigit, lo: BigDigit) -> DoubleBigDigit {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inc`
[INFO] [stdout]   --> src/algorithms.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn inc(a: &mut [BigDigit]) -> BigDigit {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "8e468f008d5ff53506c7e367e644f3bc72df13909b46d71cd5536aedf2fe4094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e468f008d5ff53506c7e367e644f3bc72df13909b46d71cd5536aedf2fe4094", kill_on_drop: false }`
[INFO] [stdout] 8e468f008d5ff53506c7e367e644f3bc72df13909b46d71cd5536aedf2fe4094
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a0dcc94d1b1f37935aa236b91a98e3654c73afe8710402ad02a21df6750ca362
[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" "a0dcc94d1b1f37935aa236b91a98e3654c73afe8710402ad02a21df6750ca362", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: constant is never used: `ZERO_BIG_DIGIT`
[INFO] [stdout] running 5 tests
[INFO] [stderr]   --> src/algorithms.rs:15:5
[INFO] [stdout] test m256::tests::sub ... ok
[INFO] [stderr]    |
[INFO] [stdout] test mi256::tests::m256 ... ok
[INFO] [stderr] 15 |     pub const ZERO_BIG_DIGIT: BigDigit = 0;
[INFO] [stdout] test mi256::tests::sdiv ... ok
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test u256::tests::mul ... ok
[INFO] [stderr]    |
[INFO] [stdout] test u256::tests::div ... ok
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr] warning: function is never used: `to_doublebigdigit`
[INFO] [stdout] 
[INFO] [stderr]   --> src/algorithms.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn to_doublebigdigit(hi: BigDigit, lo: BigDigit) -> DoubleBigDigit {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inc`
[INFO] [stderr]   --> src/algorithms.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 | pub fn inc(a: &mut [BigDigit]) -> BigDigit {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `sputnikvm-bigint` (lib) generated 3 warnings
[INFO] [stderr] warning: `sputnikvm-bigint` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sputnikvm_bigint-d18f6b6676fd544a)
[INFO] [stderr]    Doc-tests sputnikvm-bigint
[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" "a0dcc94d1b1f37935aa236b91a98e3654c73afe8710402ad02a21df6750ca362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0dcc94d1b1f37935aa236b91a98e3654c73afe8710402ad02a21df6750ca362", kill_on_drop: false }`
[INFO] [stdout] a0dcc94d1b1f37935aa236b91a98e3654c73afe8710402ad02a21df6750ca362