[INFO] fetching crate phylo 0.3.0...
[INFO] checking phylo-0.3.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate phylo 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate phylo 0.3.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate phylo 0.3.0
[INFO] finished tweaking crates.io crate phylo 0.3.0
[INFO] tweaked toml for crates.io crate phylo 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 66 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.11.0 (latest: v0.13.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (latest: v0.6.5)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.59.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (latest: v0.59.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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 vers-vecs v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01a890437cbc0d76bf809ecd4463eeeb2198fe327e3e0ffcd7dd7384957d2fee
[INFO] running `Command { std: "docker" "start" "-a" "01a890437cbc0d76bf809ecd4463eeeb2198fe327e3e0ffcd7dd7384957d2fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01a890437cbc0d76bf809ecd4463eeeb2198fe327e3e0ffcd7dd7384957d2fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01a890437cbc0d76bf809ecd4463eeeb2198fe327e3e0ffcd7dd7384957d2fee", kill_on_drop: false }`
[INFO] [stdout] 01a890437cbc0d76bf809ecd4463eeeb2198fe327e3e0ffcd7dd7384957d2fee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f25b4a5f592bdb876f03988081f0ae2cf11634a4da8ad612e12b3b0f6202710
[INFO] running `Command { std: "docker" "start" "-a" "4f25b4a5f592bdb876f03988081f0ae2cf11634a4da8ad612e12b3b0f6202710", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking vers-vecs v1.5.0
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking phylo v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/main.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |             t1.set_zeta(depth);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let _ = t1.set_zeta(depth);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/main.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             t2.set_zeta(depth);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 53 |             let _ = t2.set_zeta(depth);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/main.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             t1.contract_tree(taxa_subset.as_slice());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let _ = t1.contract_tree(taxa_subset.as_slice());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.97s
[INFO] running `Command { std: "docker" "inspect" "4f25b4a5f592bdb876f03988081f0ae2cf11634a4da8ad612e12b3b0f6202710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f25b4a5f592bdb876f03988081f0ae2cf11634a4da8ad612e12b3b0f6202710", kill_on_drop: false }`
[INFO] [stdout] 4f25b4a5f592bdb876f03988081f0ae2cf11634a4da8ad612e12b3b0f6202710