[INFO] fetching crate serde-diff 0.4.1...
[INFO] checking serde-diff-0.4.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate serde-diff 0.4.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate serde-diff 0.4.1 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] started tweaking crates.io crate serde-diff 0.4.1
[INFO] finished tweaking crates.io crate serde-diff 0.4.1
[INFO] tweaked toml for crates.io crate serde-diff 0.4.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate serde-diff 0.4.1 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] 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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d213e258a9c640bfdc967c4f99ab9f5ced53bb587b8ad899c9c01664bd39bfbe
[INFO] running `Command { std: "docker" "start" "-a" "d213e258a9c640bfdc967c4f99ab9f5ced53bb587b8ad899c9c01664bd39bfbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d213e258a9c640bfdc967c4f99ab9f5ced53bb587b8ad899c9c01664bd39bfbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d213e258a9c640bfdc967c4f99ab9f5ced53bb587b8ad899c9c01664bd39bfbe", kill_on_drop: false }`
[INFO] [stdout] d213e258a9c640bfdc967c4f99ab9f5ced53bb587b8ad899c9c01664bd39bfbe
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1590bd503d43d3f0e660c98cb853fad36671a8d4b11e63d14a9a365f4d6029cb
[INFO] running `Command { std: "docker" "start" "-a" "1590bd503d43d3f0e660c98cb853fad36671a8d4b11e63d14a9a365f4d6029cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling serde-diff-derive v0.4.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking rmp-serde v0.15.1
[INFO] [stderr]     Checking serde-diff v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `bincode::config`: please use `options()` instead
[INFO] [stdout]   --> src/tests.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 26 |     bincode::config()
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `bincode::config`: please use `options()` instead
[INFO] [stdout]   --> src/tests.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |     bincode::config()
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `bincode::config`: please use `options()` instead
[INFO] [stdout]    --> src/tests.rs:184:14
[INFO] [stdout]     |
[INFO] [stdout] 184 |     bincode::config()
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.99s
[INFO] running `Command { std: "docker" "inspect" "1590bd503d43d3f0e660c98cb853fad36671a8d4b11e63d14a9a365f4d6029cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1590bd503d43d3f0e660c98cb853fad36671a8d4b11e63d14a9a365f4d6029cb", kill_on_drop: false }`
[INFO] [stdout] 1590bd503d43d3f0e660c98cb853fad36671a8d4b11e63d14a9a365f4d6029cb