[INFO] cloning repository https://github.com/vimwitch/bigint-benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vimwitch/bigint-benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvimwitch%2Fbigint-benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvimwitch%2Fbigint-benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 035b636c90a8f5a181b169478046d2bca96c5f9f
[INFO] checking vimwitch/bigint-benchmark against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvimwitch%2Fbigint-benchmark" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vimwitch/bigint-benchmark
[INFO] finished tweaking git repo https://github.com/vimwitch/bigint-benchmark
[INFO] tweaked toml for git repo https://github.com/vimwitch/bigint-benchmark written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vimwitch/bigint-benchmark on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vimwitch/bigint-benchmark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ef7c9cb7492a4dedb65e20a4d0eceff99b33b6502a36b194be79a68c3446250
[INFO] running `Command { std: "docker" "start" "-a" "4ef7c9cb7492a4dedb65e20a4d0eceff99b33b6502a36b194be79a68c3446250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ef7c9cb7492a4dedb65e20a4d0eceff99b33b6502a36b194be79a68c3446250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef7c9cb7492a4dedb65e20a4d0eceff99b33b6502a36b194be79a68c3446250", kill_on_drop: false }`
[INFO] [stdout] 4ef7c9cb7492a4dedb65e20a4d0eceff99b33b6502a36b194be79a68c3446250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be7ece0aee09bdfffab7c88c6f6b18e9a2030ac99cf9f9f80386a8438779b225
[INFO] running `Command { std: "docker" "start" "-a" "be7ece0aee09bdfffab7c88c6f6b18e9a2030ac99cf9f9f80386a8438779b225", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crypto-bigint v0.5.2
[INFO] [stderr]     Checking ibig v0.3.6
[INFO] [stderr]     Checking bigint-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `bigint-benchmark` (bin "bigint-benchmark") due to 2 previous errors; 1 warning emitted
[INFO] [stdout] warning: function `test_num_bigint_modexp` is never used
[INFO] [stdout]   --> src/main.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn test_num_bigint_modexp(p_: u128) -> (Vec<u128>, Duration) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<u128, Infallible>
[INFO] [stdout]   --> src/main.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |         o += u128::try_from(words[0]).unwrap();
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u128, Infallible>
[INFO] [stdout]   --> src/main.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |         o += u128::try_from(words[1]).unwrap() << 64;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_num_bigint_modexp` is never used
[INFO] [stdout]   --> src/main.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn test_num_bigint_modexp(p_: u128) -> (Vec<u128>, Duration) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u128, Infallible>
[INFO] [stdout]   --> src/main.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |         o += u128::try_from(words[0]).unwrap();
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u128, Infallible>
[INFO] [stdout]   --> src/main.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |         o += u128::try_from(words[1]).unwrap() << 64;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bigint-benchmark` (bin "bigint-benchmark" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "be7ece0aee09bdfffab7c88c6f6b18e9a2030ac99cf9f9f80386a8438779b225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be7ece0aee09bdfffab7c88c6f6b18e9a2030ac99cf9f9f80386a8438779b225", kill_on_drop: false }`
[INFO] [stdout] be7ece0aee09bdfffab7c88c6f6b18e9a2030ac99cf9f9f80386a8438779b225