[INFO] fetching crate refpack 4.0.2...
[INFO] checking refpack-4.0.2 against try#a0cd57eba5d417638d3351ba13fc414ad1a24bec for pr-134688-1
[INFO] extracting crate refpack 4.0.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate refpack 4.0.2 on toolchain a0cd57eba5d417638d3351ba13fc414ad1a24bec
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a0cd57eba5d417638d3351ba13fc414ad1a24bec" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate refpack 4.0.2
[INFO] finished tweaking crates.io crate refpack 4.0.2
[INFO] tweaked toml for crates.io crate refpack 4.0.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a0cd57eba5d417638d3351ba13fc414ad1a24bec" "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 177 packages to latest compatible versions
[INFO] [stderr]       Adding criterion-cycles-per-byte v0.5.0 (available: v0.6.1)
[INFO] [stderr]       Adding test-strategy v0.3.1 (available: v0.4.0)
[INFO] [stderr]       Adding zip v0.6.6 (available: v2.2.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a0cd57eba5d417638d3351ba13fc414ad1a24bec" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+a0cd57eba5d417638d3351ba13fc414ad1a24bec" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bbc7c1e96b17aa30d5dc0923df52609762faeba669a9635380837b146d8790d
[INFO] running `Command { std: "docker" "start" "-a" "8bbc7c1e96b17aa30d5dc0923df52609762faeba669a9635380837b146d8790d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bbc7c1e96b17aa30d5dc0923df52609762faeba669a9635380837b146d8790d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bbc7c1e96b17aa30d5dc0923df52609762faeba669a9635380837b146d8790d", kill_on_drop: false }`
[INFO] [stdout] 8bbc7c1e96b17aa30d5dc0923df52609762faeba669a9635380837b146d8790d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+a0cd57eba5d417638d3351ba13fc414ad1a24bec" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8593ba7482a909101d003a74f4b0384879ceaa5208a6214b1808843f04cb4a6
[INFO] running `Command { std: "docker" "start" "-a" "c8593ba7482a909101d003a74f4b0384879ceaa5208a6214b1808843f04cb4a6", kill_on_drop: false }`
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[INFO] [stdout] warning: function `random_increasing_vecs` is never used
[INFO] [stdout]   --> benches/synthetic_performance.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn random_increasing_vecs(num: usize, increase_interval: usize) -> Vec<Vec<u8>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.59s
[INFO] running `Command { std: "docker" "inspect" "c8593ba7482a909101d003a74f4b0384879ceaa5208a6214b1808843f04cb4a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8593ba7482a909101d003a74f4b0384879ceaa5208a6214b1808843f04cb4a6", kill_on_drop: false }`
[INFO] [stdout] c8593ba7482a909101d003a74f4b0384879ceaa5208a6214b1808843f04cb4a6