[INFO] fetching crate round-multiple 0.1.0...
[INFO] testing round-multiple-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate round-multiple 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate round-multiple 0.1.0
[INFO] finished tweaking crates.io crate round-multiple 0.1.0
[INFO] tweaked toml for crates.io crate round-multiple 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate round-multiple 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate round-multiple 0.1.0 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4638ec040169b9fe4fb8d11acf0880b29fcd935fa98c6227094ab3686d7bcf50
[INFO] running `Command { std: "docker" "start" "-a" "4638ec040169b9fe4fb8d11acf0880b29fcd935fa98c6227094ab3686d7bcf50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4638ec040169b9fe4fb8d11acf0880b29fcd935fa98c6227094ab3686d7bcf50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4638ec040169b9fe4fb8d11acf0880b29fcd935fa98c6227094ab3686d7bcf50", kill_on_drop: false }`
[INFO] [stdout] 4638ec040169b9fe4fb8d11acf0880b29fcd935fa98c6227094ab3686d7bcf50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fea3ed879339163f652c4edf3d390331bdd53258698bea456596df8f1c0292cd
[INFO] running `Command { std: "docker" "start" "-a" "fea3ed879339163f652c4edf3d390331bdd53258698bea456596df8f1c0292cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling round-multiple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "fea3ed879339163f652c4edf3d390331bdd53258698bea456596df8f1c0292cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fea3ed879339163f652c4edf3d390331bdd53258698bea456596df8f1c0292cd", kill_on_drop: false }`
[INFO] [stdout] fea3ed879339163f652c4edf3d390331bdd53258698bea456596df8f1c0292cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f58c82d43fbee2a42b1cee42179fd6848dcad2c6bdaa1ef9142b820c9e01af7
[INFO] running `Command { std: "docker" "start" "-a" "6f58c82d43fbee2a42b1cee42179fd6848dcad2c6bdaa1ef9142b820c9e01af7", kill_on_drop: false }`
[INFO] [stderr]    Compiling round-multiple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/lib.rs:6:9
[INFO] [stdout]    |
[INFO] [stdout]  6 |         (($x + m - 1) / m) * m
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ the arithmetic operation produces a value
[INFO] [stdout] ...
[INFO] [stdout] 24 |         round_multiple_checked!(10, 0);
[INFO] [stdout]    |         ------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `round_multiple_checked` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let _ = round_multiple_checked!(10, 0);;
[INFO] [stdout]    |         +++++++                               +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "6f58c82d43fbee2a42b1cee42179fd6848dcad2c6bdaa1ef9142b820c9e01af7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f58c82d43fbee2a42b1cee42179fd6848dcad2c6bdaa1ef9142b820c9e01af7", kill_on_drop: false }`
[INFO] [stdout] 6f58c82d43fbee2a42b1cee42179fd6848dcad2c6bdaa1ef9142b820c9e01af7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f9358da84de524cea912a96c031df318e4ec329ffe6665cb5dfdd2b62c90f33c
[INFO] running `Command { std: "docker" "start" "-a" "f9358da84de524cea912a96c031df318e4ec329ffe6665cb5dfdd2b62c90f33c", kill_on_drop: false }`
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]   --> src/lib.rs:6:9
[INFO] [stderr]    |
[INFO] [stderr]  6 |         (($x + m - 1) / m) * m
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ the arithmetic operation produces a value
[INFO] [stderr] ...
[INFO] [stderr] 24 |         round_multiple_checked!(10, 0);
[INFO] [stderr]    |         ------------------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr]    = note: this warning originates in the macro `round_multiple_checked` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let _ = round_multiple_checked!(10, 0);;
[INFO] [stderr]    |         +++++++                               +
[INFO] [stderr] 
[INFO] [stderr] warning: `round-multiple` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/round_multiple-f33a64471162387a)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::round_multiple_checked_works ... ok
[INFO] [stdout] test tests::round_multiple_checked_panic_with_zero_works - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests round_multiple
[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" "f9358da84de524cea912a96c031df318e4ec329ffe6665cb5dfdd2b62c90f33c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9358da84de524cea912a96c031df318e4ec329ffe6665cb5dfdd2b62c90f33c", kill_on_drop: false }`
[INFO] [stdout] f9358da84de524cea912a96c031df318e4ec329ffe6665cb5dfdd2b62c90f33c