[INFO] cloning repository https://github.com/lk16/rust_json [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lk16/rust_json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flk16%2Frust_json", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flk16%2Frust_json'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d05cdc65b162cfe0b3d6e8c93ad0d9bc6665d8ba [INFO] building lk16/rust_json against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flk16%2Frust_json" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lk16/rust_json on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/lk16/rust_json [INFO] finished tweaking git repo https://github.com/lk16/rust_json [INFO] tweaked toml for git repo https://github.com/lk16/rust_json written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/lk16/rust_json 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 06c3d75821cfd2558ff7c416316c8bdb728461803f294f6a2b1aa2780c5414fc [INFO] running `Command { std: "docker" "start" "-a" "06c3d75821cfd2558ff7c416316c8bdb728461803f294f6a2b1aa2780c5414fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "06c3d75821cfd2558ff7c416316c8bdb728461803f294f6a2b1aa2780c5414fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06c3d75821cfd2558ff7c416316c8bdb728461803f294f6a2b1aa2780c5414fc", kill_on_drop: false }` [INFO] [stdout] 06c3d75821cfd2558ff7c416316c8bdb728461803f294f6a2b1aa2780c5414fc [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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8c5b0c3f42a20d8d0433889c846af980a3ac0807f6f9181224770de3e4987560 [INFO] running `Command { std: "docker" "start" "-a" "8c5b0c3f42a20d8d0433889c846af980a3ac0807f6f9181224770de3e4987560", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling regex-syntax v0.6.28 [INFO] [stderr] Compiling aho-corasick v0.7.20 [INFO] [stderr] Compiling regex v1.7.1 [INFO] [stderr] Compiling rust_playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.40s [INFO] running `Command { std: "docker" "inspect" "8c5b0c3f42a20d8d0433889c846af980a3ac0807f6f9181224770de3e4987560", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c5b0c3f42a20d8d0433889c846af980a3ac0807f6f9181224770de3e4987560", kill_on_drop: false }` [INFO] [stdout] 8c5b0c3f42a20d8d0433889c846af980a3ac0807f6f9181224770de3e4987560 [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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 11bb83728b662dc73c5bff6a1558c96f2dd6cc149842bfced5f8a10dfe96848c [INFO] running `Command { std: "docker" "start" "-a" "11bb83728b662dc73c5bff6a1558c96f2dd6cc149842bfced5f8a10dfe96848c", kill_on_drop: false }` [INFO] [stderr] Compiling rust_playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s [INFO] running `Command { std: "docker" "inspect" "11bb83728b662dc73c5bff6a1558c96f2dd6cc149842bfced5f8a10dfe96848c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11bb83728b662dc73c5bff6a1558c96f2dd6cc149842bfced5f8a10dfe96848c", kill_on_drop: false }` [INFO] [stdout] 11bb83728b662dc73c5bff6a1558c96f2dd6cc149842bfced5f8a10dfe96848c