[INFO] fetching crate free_log_writer 0.2.0...
[INFO] checking free_log_writer-0.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate free_log_writer 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate free_log_writer 0.2.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate free_log_writer 0.2.0
[INFO] finished tweaking crates.io crate free_log_writer 0.2.0
[INFO] tweaked toml for crates.io crate free_log_writer 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate free_log_writer 0.2.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d43901688c19e64815bb5c5305fd4ab2d45e77b08b0386d6697d35e6f3b50620
[INFO] running `Command { std: "docker" "start" "-a" "d43901688c19e64815bb5c5305fd4ab2d45e77b08b0386d6697d35e6f3b50620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d43901688c19e64815bb5c5305fd4ab2d45e77b08b0386d6697d35e6f3b50620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d43901688c19e64815bb5c5305fd4ab2d45e77b08b0386d6697d35e6f3b50620", kill_on_drop: false }`
[INFO] [stdout] d43901688c19e64815bb5c5305fd4ab2d45e77b08b0386d6697d35e6f3b50620
[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 -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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01df20816aaa164c762eda6193ecf4eeebf271de38fd11be301ddce7cd40b9bb
[INFO] running `Command { std: "docker" "start" "-a" "01df20816aaa164c762eda6193ecf4eeebf271de38fd11be301ddce7cd40b9bb", kill_on_drop: false }`
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[INFO] [stderr]     Checking free_log_writer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "01df20816aaa164c762eda6193ecf4eeebf271de38fd11be301ddce7cd40b9bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01df20816aaa164c762eda6193ecf4eeebf271de38fd11be301ddce7cd40b9bb", kill_on_drop: false }`
[INFO] [stdout] 01df20816aaa164c762eda6193ecf4eeebf271de38fd11be301ddce7cd40b9bb