[INFO] fetching crate ssa-reloop 0.3.0-alpha.1...
[INFO] checking ssa-reloop-0.3.0-alpha.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate ssa-reloop 0.3.0-alpha.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ssa-reloop 0.3.0-alpha.1
[INFO] finished tweaking crates.io crate ssa-reloop 0.3.0-alpha.1
[INFO] tweaked toml for crates.io crate ssa-reloop 0.3.0-alpha.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ssa-reloop 0.3.0-alpha.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ssa-reloop 0.3.0-alpha.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded extension-traits v1.0.1
[INFO] [stderr]   Downloaded lending-iterator-proc_macros v0.1.7
[INFO] [stderr]   Downloaded ssa-traits v0.3.0-alpha.1
[INFO] [stderr]   Downloaded nougat v0.2.4
[INFO] [stderr]   Downloaded lending-iterator v0.1.7
[INFO] [stderr]   Downloaded arena-traits v0.2.2
[INFO] [stderr]   Downloaded ssa-impls v0.3.0-alpha.1
[INFO] [stderr]   Downloaded ext-trait-proc_macros v1.0.1
[INFO] [stderr]   Downloaded polonius-the-crab v0.2.1
[INFO] [stderr]   Downloaded nougat-proc_macros v0.2.4
[INFO] [stderr]   Downloaded ext-trait v1.0.1
[INFO] [stderr]   Downloaded never-say-never v6.6.666
[INFO] [stderr]   Downloaded cfg-traits v0.3.0-alpha.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c11bd12c1ddc9223cd26b42777f71a67168b186bbd613ab51815bcf7a0397c7
[INFO] running `Command { std: "docker" "start" "-a" "4c11bd12c1ddc9223cd26b42777f71a67168b186bbd613ab51815bcf7a0397c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c11bd12c1ddc9223cd26b42777f71a67168b186bbd613ab51815bcf7a0397c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c11bd12c1ddc9223cd26b42777f71a67168b186bbd613ab51815bcf7a0397c7", kill_on_drop: false }`
[INFO] [stdout] 4c11bd12c1ddc9223cd26b42777f71a67168b186bbd613ab51815bcf7a0397c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f43a5a578e14c836e5184de53c849906dbe34dd8cf98ae678d9972c55eb20a3
[INFO] running `Command { std: "docker" "start" "-a" "0f43a5a578e14c836e5184de53c849906dbe34dd8cf98ae678d9972c55eb20a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling macro_rules_attribute-proc_macro v0.1.3
[INFO] [stderr]     Checking polonius-the-crab v0.2.1
[INFO] [stderr]     Checking never-say-never v6.6.666
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking arena-traits v0.2.2
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking macro_rules_attribute v0.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking relooper v0.1.0
[INFO] [stderr]    Compiling ext-trait-proc_macros v1.0.1
[INFO] [stderr]    Compiling nougat-proc_macros v0.2.4
[INFO] [stderr]    Compiling lending-iterator-proc_macros v0.1.7
[INFO] [stderr]     Checking ext-trait v1.0.1
[INFO] [stderr]     Checking extension-traits v1.0.1
[INFO] [stderr]     Checking nougat v0.2.4
[INFO] [stderr]     Checking lending-iterator v0.1.7
[INFO] [stderr]     Checking cfg-traits v0.3.0-alpha.1
[INFO] [stderr]     Checking ssa-traits v0.3.0-alpha.1
[INFO] [stderr]     Checking ssa-impls v0.3.0-alpha.1
[INFO] [stderr]     Checking ssa-reloop v0.3.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `arena_traits::Arena`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use arena_traits::Arena;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arena_traits::Arena`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use arena_traits::Arena;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.38s
[INFO] running `Command { std: "docker" "inspect" "0f43a5a578e14c836e5184de53c849906dbe34dd8cf98ae678d9972c55eb20a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f43a5a578e14c836e5184de53c849906dbe34dd8cf98ae678d9972c55eb20a3", kill_on_drop: false }`
[INFO] [stdout] 0f43a5a578e14c836e5184de53c849906dbe34dd8cf98ae678d9972c55eb20a3