[INFO] fetching crate mel_filter 0.1.1...
[INFO] testing mel_filter-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mel_filter 0.1.1 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate mel_filter 0.1.1 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 mel_filter 0.1.1
[INFO] finished tweaking crates.io crate mel_filter 0.1.1
[INFO] tweaked toml for crates.io crate mel_filter 0.1.1 written to /workspace/builds/worker-57/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools-num v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 862c62736ab75629206adfa09fda3c17572692b927bc91df65fe31d948701108
[INFO] running `Command { std: "docker" "start" "-a" "862c62736ab75629206adfa09fda3c17572692b927bc91df65fe31d948701108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "862c62736ab75629206adfa09fda3c17572692b927bc91df65fe31d948701108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "862c62736ab75629206adfa09fda3c17572692b927bc91df65fe31d948701108", kill_on_drop: false }`
[INFO] [stdout] 862c62736ab75629206adfa09fda3c17572692b927bc91df65fe31d948701108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] e8fdc2ba787cf0775946b077ee3f6b0abce77164ca054a0891dc180fbdd0b7a3
[INFO] running `Command { std: "docker" "start" "-a" "e8fdc2ba787cf0775946b077ee3f6b0abce77164ca054a0891dc180fbdd0b7a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling itertools-num v0.1.3
[INFO] [stderr]    Compiling mel_filter v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.79s
[INFO] running `Command { std: "docker" "inspect" "e8fdc2ba787cf0775946b077ee3f6b0abce77164ca054a0891dc180fbdd0b7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8fdc2ba787cf0775946b077ee3f6b0abce77164ca054a0891dc180fbdd0b7a3", kill_on_drop: false }`
[INFO] [stdout] e8fdc2ba787cf0775946b077ee3f6b0abce77164ca054a0891dc180fbdd0b7a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 31b56bd95e8ee618fdc5ce8978513a0c23a30c6fa7b64073c5bdb83a4c330f4c
[INFO] running `Command { std: "docker" "start" "-a" "31b56bd95e8ee618fdc5ce8978513a0c23a30c6fa7b64073c5bdb83a4c330f4c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mel_filter v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `Command { std: "docker" "inspect" "31b56bd95e8ee618fdc5ce8978513a0c23a30c6fa7b64073c5bdb83a4c330f4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31b56bd95e8ee618fdc5ce8978513a0c23a30c6fa7b64073c5bdb83a4c330f4c", kill_on_drop: false }`
[INFO] [stdout] 31b56bd95e8ee618fdc5ce8978513a0c23a30c6fa7b64073c5bdb83a4c330f4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 88596b591e29aeed233172e14b25287b7e6d618ef02cfc5d3acd3e5b2bd6952a
[INFO] running `Command { std: "docker" "start" "-a" "88596b591e29aeed233172e14b25287b7e6d618ef02cfc5d3acd3e5b2bd6952a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mel_filter-654e090ddf105e5b)
[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] [stderr]    Doc-tests mel_filter
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - mel_frequencies (line 180) ... FAILED
[INFO] [stdout] test src/lib.rs - mel_frequencies (line 226) ... ok
[INFO] [stdout] test src/lib.rs - mel_to_hz (line 101) ... ok
[INFO] [stdout] test src/lib.rs - hz_to_mel (line 28) ... ok
[INFO] [stdout] test src/lib.rs - fft_frequencies (line 280) ... ok
[INFO] [stdout] test src/lib.rs - mel (line 315) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - mel_frequencies (line 180) stdout ----
[INFO] [stdout] error: unexpected token: `}`
[INFO] [stdout]  --> src/lib.rs:182:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | } _doctest_main_src_lib_rs_180_0() }
[INFO] [stdout]   | ^
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mel` in this scope
[INFO] [stdout]  --> src/lib.rs:181:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mel = 2595.0 * (1.0 + f / 700.0).log10().
[INFO] [stdout]   | ^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 2 | use mel_filter::mel;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `f` in this scope
[INFO] [stdout]  --> src/lib.rs:181:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | mel = 2595.0 * (1.0 + f / 700.0).log10().
[INFO] [stdout]   |                       ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0689]: can't call method `log10` on ambiguous numeric type `{float}`
[INFO] [stdout]  --> src/lib.rs:181:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | mel = 2595.0 * (1.0 + f / 700.0).log10().
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0689.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - mel_frequencies (line 180)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "88596b591e29aeed233172e14b25287b7e6d618ef02cfc5d3acd3e5b2bd6952a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88596b591e29aeed233172e14b25287b7e6d618ef02cfc5d3acd3e5b2bd6952a", kill_on_drop: false }`
[INFO] [stdout] 88596b591e29aeed233172e14b25287b7e6d618ef02cfc5d3acd3e5b2bd6952a