[INFO] fetching crate scotext 0.5.0...
[INFO] checking scotext-0.5.0 against try#d76952bc2a74b981479554f7e1e2c6f8a8c3e3bf for pr-100046
[INFO] extracting crate scotext 0.5.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate scotext 0.5.0 on toolchain d76952bc2a74b981479554f7e1e2c6f8a8c3e3bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d76952bc2a74b981479554f7e1e2c6f8a8c3e3bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scotext 0.5.0
[INFO] finished tweaking crates.io crate scotext 0.5.0
[INFO] tweaked toml for crates.io crate scotext 0.5.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d76952bc2a74b981479554f7e1e2c6f8a8c3e3bf" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d76952bc2a74b981479554f7e1e2c6f8a8c3e3bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+d76952bc2a74b981479554f7e1e2c6f8a8c3e3bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c04ebf013368bd5a17f381272abbbb8a1cea48d0a86b88b09fc4b184a12c802
[INFO] running `Command { std: "docker" "start" "-a" "4c04ebf013368bd5a17f381272abbbb8a1cea48d0a86b88b09fc4b184a12c802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c04ebf013368bd5a17f381272abbbb8a1cea48d0a86b88b09fc4b184a12c802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c04ebf013368bd5a17f381272abbbb8a1cea48d0a86b88b09fc4b184a12c802", kill_on_drop: false }`
[INFO] [stdout] 4c04ebf013368bd5a17f381272abbbb8a1cea48d0a86b88b09fc4b184a12c802
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+d76952bc2a74b981479554f7e1e2c6f8a8c3e3bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 677ce186db7e883f211d26c4346611feade4778264651ec252807febebf4c08f
[INFO] running `Command { std: "docker" "start" "-a" "677ce186db7e883f211d26c4346611feade4778264651ec252807febebf4c08f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.129
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.9
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking xor-utils v0.5.0
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking scotext v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     input.to_lowercase();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     input.to_lowercase();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.12s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "677ce186db7e883f211d26c4346611feade4778264651ec252807febebf4c08f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "677ce186db7e883f211d26c4346611feade4778264651ec252807febebf4c08f", kill_on_drop: false }`
[INFO] [stdout] 677ce186db7e883f211d26c4346611feade4778264651ec252807febebf4c08f