[INFO] fetching crate verilization-compiler 0.1.0...
[INFO] checking verilization-compiler-0.1.0 against try#1bd50d4315eb15970d395b6be5823f9384707693 for pr-140151
[INFO] extracting crate verilization-compiler 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate verilization-compiler 0.1.0 on toolchain 1bd50d4315eb15970d395b6be5823f9384707693
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate verilization-compiler 0.1.0
[INFO] finished tweaking crates.io crate verilization-compiler 0.1.0
[INFO] tweaked toml for crates.io crate verilization-compiler 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding memchr v2.3.4 (available: v2.7.4)
[INFO] [stderr]       Adding nom v6.2.2 (available: v8.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf1ee82c98196be6923f0282cde6f674dfc6f96169c05de5140e50cf61dc9510
[INFO] running `Command { std: "docker" "start" "-a" "bf1ee82c98196be6923f0282cde6f674dfc6f96169c05de5140e50cf61dc9510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf1ee82c98196be6923f0282cde6f674dfc6f96169c05de5140e50cf61dc9510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf1ee82c98196be6923f0282cde6f674dfc6f96169c05de5140e50cf61dc9510", kill_on_drop: false }`
[INFO] [stdout] bf1ee82c98196be6923f0282cde6f674dfc6f96169c05de5140e50cf61dc9510
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfc325bf952bde6e49f8aec8d63003b458c60fa8163e8efd0efd807c4e6fc1a1
[INFO] running `Command { std: "docker" "start" "-a" "cfc325bf952bde6e49f8aec8d63003b458c60fa8163e8efd0efd807c4e6fc1a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking pathdiff v0.2.3
[INFO] [stderr]    Compiling nom v6.2.2
[INFO] [stderr]     Checking bitvec v0.19.6
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking verilization-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&BigUint` instead of cloning the inner type
[INFO] [stdout]    --> src/model.rs:480:30
[INFO] [stdout]     |
[INFO] [stdout] 480 |             .max_by_key(|(ver, _)| ver.clone())
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&BigUint` instead of cloning the inner type
[INFO] [stdout]    --> src/model.rs:480:30
[INFO] [stdout]     |
[INFO] [stdout] 480 |             .max_by_key(|(ver, _)| ver.clone())
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.84s
[INFO] running `Command { std: "docker" "inspect" "cfc325bf952bde6e49f8aec8d63003b458c60fa8163e8efd0efd807c4e6fc1a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfc325bf952bde6e49f8aec8d63003b458c60fa8163e8efd0efd807c4e6fc1a1", kill_on_drop: false }`
[INFO] [stdout] cfc325bf952bde6e49f8aec8d63003b458c60fa8163e8efd0efd807c4e6fc1a1