[INFO] cloning repository https://github.com/vsramanujan/CrackingTheCodingInterviewInRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vsramanujan/CrackingTheCodingInterviewInRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsramanujan%2FCrackingTheCodingInterviewInRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsramanujan%2FCrackingTheCodingInterviewInRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 424b84998e8ac1fce6433feea8d288d893210a42
[INFO] building vsramanujan/CrackingTheCodingInterviewInRust against master#9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19 for pr-117684-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsramanujan%2FCrackingTheCodingInterviewInRust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust on toolchain 9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust
[INFO] finished tweaking git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust
[INFO] tweaked toml for git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust 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" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cfb017359571b1f5aa0e806d55e10217312eefe563d4c28b5c34041a0c43092
[INFO] running `Command { std: "docker" "start" "-a" "6cfb017359571b1f5aa0e806d55e10217312eefe563d4c28b5c34041a0c43092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cfb017359571b1f5aa0e806d55e10217312eefe563d4c28b5c34041a0c43092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cfb017359571b1f5aa0e806d55e10217312eefe563d4c28b5c34041a0c43092", kill_on_drop: false }`
[INFO] [stdout] 6cfb017359571b1f5aa0e806d55e10217312eefe563d4c28b5c34041a0c43092
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcd1a777caa1533a426a60f48c4acb40aa30c730b50e10b4d3426c393f356126
[INFO] running `Command { std: "docker" "start" "-a" "dcd1a777caa1533a426a60f48c4acb40aa30c730b50e10b4d3426c393f356126", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_cracking_the_coding_interview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "dcd1a777caa1533a426a60f48c4acb40aa30c730b50e10b4d3426c393f356126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcd1a777caa1533a426a60f48c4acb40aa30c730b50e10b4d3426c393f356126", kill_on_drop: false }`
[INFO] [stdout] dcd1a777caa1533a426a60f48c4acb40aa30c730b50e10b4d3426c393f356126
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cd251763ec0362c7aeb41e6977572203ba8970e8ff6231418a3e15f2ba42291
[INFO] running `Command { std: "docker" "start" "-a" "7cd251763ec0362c7aeb41e6977572203ba8970e8ff6231418a3e15f2ba42291", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_cracking_the_coding_interview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "7cd251763ec0362c7aeb41e6977572203ba8970e8ff6231418a3e15f2ba42291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd251763ec0362c7aeb41e6977572203ba8970e8ff6231418a3e15f2ba42291", kill_on_drop: false }`
[INFO] [stdout] 7cd251763ec0362c7aeb41e6977572203ba8970e8ff6231418a3e15f2ba42291
[INFO] building vsramanujan/CrackingTheCodingInterviewInRust against try#53e03135c36e913ff664ce8329041b7e3c2fd358 for pr-117684-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsramanujan%2FCrackingTheCodingInterviewInRust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust on toolchain 53e03135c36e913ff664ce8329041b7e3c2fd358
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust
[INFO] finished tweaking git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust
[INFO] tweaked toml for git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/vsramanujan/CrackingTheCodingInterviewInRust 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" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8117e2d0647c73683b585dc4faea44218613d9599b20a60ccb136186e169ced4
[INFO] running `Command { std: "docker" "start" "-a" "8117e2d0647c73683b585dc4faea44218613d9599b20a60ccb136186e169ced4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8117e2d0647c73683b585dc4faea44218613d9599b20a60ccb136186e169ced4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8117e2d0647c73683b585dc4faea44218613d9599b20a60ccb136186e169ced4", kill_on_drop: false }`
[INFO] [stdout] 8117e2d0647c73683b585dc4faea44218613d9599b20a60ccb136186e169ced4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 286d0a9406f31bcff9ea0871810a872c59ff71dce60e623fac8f324054b0ba03
[INFO] running `Command { std: "docker" "start" "-a" "286d0a9406f31bcff9ea0871810a872c59ff71dce60e623fac8f324054b0ba03", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_cracking_the_coding_interview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "286d0a9406f31bcff9ea0871810a872c59ff71dce60e623fac8f324054b0ba03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "286d0a9406f31bcff9ea0871810a872c59ff71dce60e623fac8f324054b0ba03", kill_on_drop: false }`
[INFO] [stdout] 286d0a9406f31bcff9ea0871810a872c59ff71dce60e623fac8f324054b0ba03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+53e03135c36e913ff664ce8329041b7e3c2fd358" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4e69e8f0fbd643a574ab4d5a0f9ba4d5ee77ee8ea73bee8575c29541cd8b62a
[INFO] running `Command { std: "docker" "start" "-a" "d4e69e8f0fbd643a574ab4d5a0f9ba4d5ee77ee8ea73bee8575c29541cd8b62a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_cracking_the_coding_interview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "d4e69e8f0fbd643a574ab4d5a0f9ba4d5ee77ee8ea73bee8575c29541cd8b62a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e69e8f0fbd643a574ab4d5a0f9ba4d5ee77ee8ea73bee8575c29541cd8b62a", kill_on_drop: false }`
[INFO] [stdout] d4e69e8f0fbd643a574ab4d5a0f9ba4d5ee77ee8ea73bee8575c29541cd8b62a