[INFO] fetching crate serde2file 0.6.7...
[INFO] checking serde2file-0.6.7 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate serde2file 0.6.7 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate serde2file 0.6.7 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde2file 0.6.7
[INFO] finished tweaking crates.io crate serde2file 0.6.7
[INFO] tweaked toml for crates.io crate serde2file 0.6.7 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding aead v0.4.3 (available: v0.5.2)
[INFO] [stderr]       Adding aes v0.7.5 (available: v0.8.4)
[INFO] [stderr]       Adding aes-gcm v0.9.4 (available: v0.10.3)
[INFO] [stderr]       Adding cipher v0.3.0 (available: v0.4.4)
[INFO] [stderr]       Adding ctr v0.8.0 (available: v0.9.2)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding ghash v0.4.4 (available: v0.5.1)
[INFO] [stderr]       Adding polyval v0.5.3 (available: v0.6.2)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.79)
[INFO] [stderr]       Adding universal-hash v0.4.1 (available: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10a3cc602e02fb572772794eba6f52ce9c7439ebcaff964d6d83b2cb773e4b16
[INFO] running `Command { std: "docker" "start" "-a" "10a3cc602e02fb572772794eba6f52ce9c7439ebcaff964d6d83b2cb773e4b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10a3cc602e02fb572772794eba6f52ce9c7439ebcaff964d6d83b2cb773e4b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a3cc602e02fb572772794eba6f52ce9c7439ebcaff964d6d83b2cb773e4b16", kill_on_drop: false }`
[INFO] [stdout] 10a3cc602e02fb572772794eba6f52ce9c7439ebcaff964d6d83b2cb773e4b16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 094156cf15c2515d9b28db6293eed1b07b943f752b422ab60870dd931ae69f6d
[INFO] running `Command { std: "docker" "start" "-a" "094156cf15c2515d9b28db6293eed1b07b943f752b422ab60870dd931ae69f6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking cpufeatures v0.2.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking indexmap v2.5.0
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking aead v0.4.3
[INFO] [stderr]     Checking ctr v0.8.0
[INFO] [stderr]     Checking polyval v0.5.3
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking ghash v0.4.4
[INFO] [stderr]     Checking aes-gcm v0.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling serde2file_macro_derive v0.6.1
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking serde2file v0.6.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.19s
[INFO] running `Command { std: "docker" "inspect" "094156cf15c2515d9b28db6293eed1b07b943f752b422ab60870dd931ae69f6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "094156cf15c2515d9b28db6293eed1b07b943f752b422ab60870dd931ae69f6d", kill_on_drop: false }`
[INFO] [stdout] 094156cf15c2515d9b28db6293eed1b07b943f752b422ab60870dd931ae69f6d