[INFO] fetching crate welford 0.1.0...
[INFO] testing welford-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate welford 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate welford 0.1.0
[INFO] finished tweaking crates.io crate welford 0.1.0
[INFO] tweaked toml for crates.io crate welford 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate welford 0.1.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate welford 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b7defef38de5595f3bbf9d4e59774a57a5459342e71dadb4a1c53cbc37912f9
[INFO] running `Command { std: "docker" "start" "-a" "3b7defef38de5595f3bbf9d4e59774a57a5459342e71dadb4a1c53cbc37912f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b7defef38de5595f3bbf9d4e59774a57a5459342e71dadb4a1c53cbc37912f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b7defef38de5595f3bbf9d4e59774a57a5459342e71dadb4a1c53cbc37912f9", kill_on_drop: false }`
[INFO] [stdout] 3b7defef38de5595f3bbf9d4e59774a57a5459342e71dadb4a1c53cbc37912f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93f31bdd535fc36deb50226147e76c6ec6a861df925c214c52af941f94fe98c2
[INFO] running `Command { std: "docker" "start" "-a" "93f31bdd535fc36deb50226147e76c6ec6a861df925c214c52af941f94fe98c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling welford v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `merge` is never used
[INFO] [stdout]    --> src/lib.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  61 | / impl<T, W> Welford<T, W>
[INFO] [stdout]  62 | | where
[INFO] [stdout]  63 | |     T: Copy + Num + NumAssign + NumCast,
[INFO] [stdout]  64 | |     W: Copy + Num + NumAssign + NumCast + PartialOrd,
[INFO] [stdout]     | |_____________________________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 100 |       fn merge(&mut self, other: Self) {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "93f31bdd535fc36deb50226147e76c6ec6a861df925c214c52af941f94fe98c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f31bdd535fc36deb50226147e76c6ec6a861df925c214c52af941f94fe98c2", kill_on_drop: false }`
[INFO] [stdout] 93f31bdd535fc36deb50226147e76c6ec6a861df925c214c52af941f94fe98c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c1f7368d3ecfdf2a67192cad873dc11a6d106452e467122441b0833901741a7
[INFO] running `Command { std: "docker" "start" "-a" "2c1f7368d3ecfdf2a67192cad873dc11a6d106452e467122441b0833901741a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling welford v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `merge` is never used
[INFO] [stdout]    --> src/lib.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  61 | / impl<T, W> Welford<T, W>
[INFO] [stdout]  62 | | where
[INFO] [stdout]  63 | |     T: Copy + Num + NumAssign + NumCast,
[INFO] [stdout]  64 | |     W: Copy + Num + NumAssign + NumCast + PartialOrd,
[INFO] [stdout]     | |_____________________________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 100 |       fn merge(&mut self, other: Self) {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "2c1f7368d3ecfdf2a67192cad873dc11a6d106452e467122441b0833901741a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c1f7368d3ecfdf2a67192cad873dc11a6d106452e467122441b0833901741a7", kill_on_drop: false }`
[INFO] [stdout] 2c1f7368d3ecfdf2a67192cad873dc11a6d106452e467122441b0833901741a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 677ed820ed99d1ed5fd98071956f9a353720f6cef212645e56b334f4fb6e53b3
[INFO] running `Command { std: "docker" "start" "-a" "677ed820ed99d1ed5fd98071956f9a353720f6cef212645e56b334f4fb6e53b3", kill_on_drop: false }`
[INFO] [stderr] warning: method `merge` is never used
[INFO] [stderr]    --> src/lib.rs:100:8
[INFO] [stderr]     |
[INFO] [stderr]  61 | / impl<T, W> Welford<T, W>
[INFO] [stderr]  62 | | where
[INFO] [stderr]  63 | |     T: Copy + Num + NumAssign + NumCast,
[INFO] [stderr]  64 | |     W: Copy + Num + NumAssign + NumCast + PartialOrd,
[INFO] [stderr]     | |_____________________________________________________- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 100 |       fn merge(&mut self, other: Self) {
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `welford` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/welford-b6f27e430c673012)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_weighted_welford ... ok
[INFO] [stdout] test tests::test_weighted_merge ... ok
[INFO] [stdout] test tests::test_merge ... ok
[INFO] [stderr]    Doc-tests welford
[INFO] [stdout] test tests::test_welford ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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" "677ed820ed99d1ed5fd98071956f9a353720f6cef212645e56b334f4fb6e53b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "677ed820ed99d1ed5fd98071956f9a353720f6cef212645e56b334f4fb6e53b3", kill_on_drop: false }`
[INFO] [stdout] 677ed820ed99d1ed5fd98071956f9a353720f6cef212645e56b334f4fb6e53b3