[INFO] fetching crate simple_bpm 0.2.1...
[INFO] checking simple_bpm-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate simple_bpm 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate simple_bpm 0.2.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple_bpm 0.2.1
[INFO] finished tweaking crates.io crate simple_bpm 0.2.1
[INFO] tweaked toml for crates.io crate simple_bpm 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 99 packages
[INFO] [stderr]       Adding autocfg v0.1.8 (latest: v1.2.0)
[INFO] [stderr]       Adding bindgen v0.47.4 (latest: v0.69.4)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cast v0.2.7 (latest: v0.3.0)
[INFO] [stderr]       Adding cexpr v0.3.6 (latest: v0.6.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding clang-sys v0.26.4 (latest: v1.7.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding cloudabi v0.0.3 (latest: v0.1.0)
[INFO] [stderr]       Adding criterion v0.2.11 (latest: v0.5.1)
[INFO] [stderr]       Adding criterion-plot v0.3.1 (latest: v0.5.0)
[INFO] [stderr]       Adding env_logger v0.6.2 (latest: v0.11.3)
[INFO] [stderr]       Adding glob v0.2.11 (latest: v0.3.1)
[INFO] [stderr]       Adding hashbrown v0.1.8 (latest: v0.14.3)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding hodges v0.1.0 (latest: v1.0.0)
[INFO] [stderr]       Adding humantime v1.3.0 (latest: v2.1.0)
[INFO] [stderr]       Adding itertools v0.8.2 (latest: v0.12.1)
[INFO] [stderr]       Adding libloading v0.5.2 (latest: v0.8.3)
[INFO] [stderr]       Adding nom v4.2.3 (latest: v7.1.3)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding peeking_take_while v0.1.2 (latest: v1.0.0)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.79)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.35)
[INFO] [stderr]       Adding rand v0.6.5 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.1.1 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.1.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rand_isaac v0.1.1 (latest: v0.3.0)
[INFO] [stderr]       Adding rand_jitter v0.1.4 (latest: v0.4.0)
[INFO] [stderr]       Adding rand_os v0.1.3 (latest: v0.2.2)
[INFO] [stderr]       Adding rand_pcg v0.1.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_xorshift v0.1.1 (latest: v0.3.0)
[INFO] [stderr]       Adding rand_xoshiro v0.1.0 (latest: v0.6.0)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding scopeguard v0.3.3 (latest: v1.2.0)
[INFO] [stderr]       Adding shlex v0.1.1 (latest: v1.3.0)
[INFO] [stderr]       Adding strsim v0.8.0 (latest: v0.11.1)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.4)
[INFO] [stderr]       Adding version_check v0.1.5 (latest: v0.9.4)
[INFO] [stderr]       Adding which v2.0.1 (latest: v6.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cmake v0.1.50
[INFO] [stderr]   Downloaded hodges v0.1.0
[INFO] [stderr]   Downloaded bindgen v0.47.4
[INFO] [stderr]   Downloaded itertools-num v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3526f61c1d71ef2257eddb7ebe94cb9913cb1b1106964ee9403d38197f792f1
[INFO] running `Command { std: "docker" "start" "-a" "e3526f61c1d71ef2257eddb7ebe94cb9913cb1b1106964ee9403d38197f792f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3526f61c1d71ef2257eddb7ebe94cb9913cb1b1106964ee9403d38197f792f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3526f61c1d71ef2257eddb7ebe94cb9913cb1b1106964ee9403d38197f792f1", kill_on_drop: false }`
[INFO] [stdout] e3526f61c1d71ef2257eddb7ebe94cb9913cb1b1106964ee9403d38197f792f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bb25fcd50603d4cddefe8eef5be834003e5b42ec8c9d3b93f0c03646bacfe8b
[INFO] running `Command { std: "docker" "start" "-a" "0bb25fcd50603d4cddefe8eef5be834003e5b42ec8c9d3b93f0c03646bacfe8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling bindgen v0.47.4
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking simple_bpm v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]    Compiling hodges v0.1.0
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> examples/optimise.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let mse = (total_err_sqs / pretrials as f32);
[INFO] [stdout]    |               ^                                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 47 -     let mse = (total_err_sqs / pretrials as f32);
[INFO] [stdout] 47 +     let mse = total_err_sqs / pretrials as f32;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.16s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cexpr v0.3.6, criterion v0.2.11, nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "0bb25fcd50603d4cddefe8eef5be834003e5b42ec8c9d3b93f0c03646bacfe8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb25fcd50603d4cddefe8eef5be834003e5b42ec8c9d3b93f0c03646bacfe8b", kill_on_drop: false }`
[INFO] [stdout] 0bb25fcd50603d4cddefe8eef5be834003e5b42ec8c9d3b93f0c03646bacfe8b