[INFO] cloning repository https://github.com/hrishimk/rust_nearest_palindrome
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hrishimk/rust_nearest_palindrome" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhrishimk%2Frust_nearest_palindrome", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhrishimk%2Frust_nearest_palindrome'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f4875a79c25e166563e7daee3af42ee50e26e9c
[INFO] checking hrishimk/rust_nearest_palindrome against try#099af82bc034c1e4895c90e5407fafdd61976cdb for pr-145457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhrishimk%2Frust_nearest_palindrome" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hrishimk/rust_nearest_palindrome
[INFO] finished tweaking git repo https://github.com/hrishimk/rust_nearest_palindrome
[INFO] tweaked toml for git repo https://github.com/hrishimk/rust_nearest_palindrome written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hrishimk/rust_nearest_palindrome on toolchain 099af82bc034c1e4895c90e5407fafdd61976cdb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hrishimk/rust_nearest_palindrome 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" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cdbf5799070c8771b2bf6b586706be61fd155ba92a267f766470ca915e9eaf2
[INFO] running `Command { std: "docker" "start" "-a" "3cdbf5799070c8771b2bf6b586706be61fd155ba92a267f766470ca915e9eaf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cdbf5799070c8771b2bf6b586706be61fd155ba92a267f766470ca915e9eaf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cdbf5799070c8771b2bf6b586706be61fd155ba92a267f766470ca915e9eaf2", kill_on_drop: false }`
[INFO] [stdout] 3cdbf5799070c8771b2bf6b586706be61fd155ba92a267f766470ca915e9eaf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cd0ce939a149e00e4535c6e749a8c1cfaac5c03e083805f3b423cea03143c12
[INFO] running `Command { std: "docker" "start" "-a" "1cd0ce939a149e00e4535c6e749a8c1cfaac5c03e083805f3b423cea03143c12", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking palindrome v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "1cd0ce939a149e00e4535c6e749a8c1cfaac5c03e083805f3b423cea03143c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd0ce939a149e00e4535c6e749a8c1cfaac5c03e083805f3b423cea03143c12", kill_on_drop: false }`
[INFO] [stdout] 1cd0ce939a149e00e4535c6e749a8c1cfaac5c03e083805f3b423cea03143c12