[INFO] fetching crate range_union_find 0.5.0...
[INFO] checking range_union_find-0.5.0 against master#23718020b12d7e5a54f82a19910e8356ee719667 for pr-146013-1
[INFO] extracting crate range_union_find 0.5.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate range_union_find 0.5.0
[INFO] finished tweaking crates.io crate range_union_find 0.5.0
[INFO] tweaked toml for crates.io crate range_union_find 0.5.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate range_union_find 0.5.0 on toolchain 23718020b12d7e5a54f82a19910e8356ee719667
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23718020b12d7e5a54f82a19910e8356ee719667" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23718020b12d7e5a54f82a19910e8356ee719667" "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 40 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23718020b12d7e5a54f82a19910e8356ee719667" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sorted-vec v0.8.10
[INFO] [stderr]   Downloaded version-sync v0.9.5
[INFO] [stderr]   Downloaded semver v1.0.26
[INFO] [stderr]   Downloaded libm v0.2.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+23718020b12d7e5a54f82a19910e8356ee719667" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbd3bae41c3845cd1d2cc57236f3b8282e63c7737cae73314085a0adf4ebd99b
[INFO] running `Command { std: "docker" "start" "-a" "cbd3bae41c3845cd1d2cc57236f3b8282e63c7737cae73314085a0adf4ebd99b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbd3bae41c3845cd1d2cc57236f3b8282e63c7737cae73314085a0adf4ebd99b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbd3bae41c3845cd1d2cc57236f3b8282e63c7737cae73314085a0adf4ebd99b", kill_on_drop: false }`
[INFO] [stdout] cbd3bae41c3845cd1d2cc57236f3b8282e63c7737cae73314085a0adf4ebd99b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+23718020b12d7e5a54f82a19910e8356ee719667" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f26d5f2212b04e965d31a3f03f98e24c18c3421cdcf8781beba59f355717bda
[INFO] running `Command { std: "docker" "start" "-a" "4f26d5f2212b04e965d31a3f03f98e24c18c3421cdcf8781beba59f355717bda", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking litemap v0.8.0
[INFO] [stderr]     Checking writeable v0.6.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]     Checking sorted-vec v0.8.10
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking syn v2.0.106
[INFO] [stderr]     Checking range_union_find v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Num`
[INFO] [stdout]  --> src/num_trait.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_traits::{PrimInt, Num};
[INFO] [stdout]   |                           ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking zerovec v0.11.4
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.3
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking version-sync v0.9.5
[INFO] [stdout] warning: unused import: `Num`
[INFO] [stdout]  --> src/num_trait.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_traits::{PrimInt, Num};
[INFO] [stdout]   |                           ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.84s
[INFO] running `Command { std: "docker" "inspect" "4f26d5f2212b04e965d31a3f03f98e24c18c3421cdcf8781beba59f355717bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f26d5f2212b04e965d31a3f03f98e24c18c3421cdcf8781beba59f355717bda", kill_on_drop: false }`
[INFO] [stdout] 4f26d5f2212b04e965d31a3f03f98e24c18c3421cdcf8781beba59f355717bda