[INFO] fetching crate effin 0.0.1...
[INFO] checking effin-0.0.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate effin 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate effin 0.0.1 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 effin 0.0.1
[INFO] finished tweaking crates.io crate effin 0.0.1
[INFO] tweaked toml for crates.io crate effin 0.0.1 written to /workspace/builds/worker-2-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 168 packages to latest compatible versions
[INFO] [stderr]       Adding autocfg v0.1.8 (available: v1.4.0)
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[INFO] [stderr]       Adding http v0.1.21 (available: v1.1.0)
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[INFO] [stderr]       Adding hyper v0.12.36 (available: v1.4.1)
[INFO] [stderr]       Adding hyper-tls v0.3.2 (available: v0.6.0)
[INFO] [stderr]       Adding idna v0.1.5 (available: v1.0.2)
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[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f37dc85d97218a03ee21dc9d2a744b629441e0ab66bf9114ee432da8ae74792f
[INFO] running `Command { std: "docker" "start" "-a" "f37dc85d97218a03ee21dc9d2a744b629441e0ab66bf9114ee432da8ae74792f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f37dc85d97218a03ee21dc9d2a744b629441e0ab66bf9114ee432da8ae74792f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f37dc85d97218a03ee21dc9d2a744b629441e0ab66bf9114ee432da8ae74792f", kill_on_drop: false }`
[INFO] [stdout] f37dc85d97218a03ee21dc9d2a744b629441e0ab66bf9114ee432da8ae74792f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f72a7bb470a4a921801c90ca26633b90640fdfaaa4460ef4acac3a43796d2e96
[INFO] running `Command { std: "docker" "start" "-a" "f72a7bb470a4a921801c90ca26633b90640fdfaaa4460ef4acac3a43796d2e96", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
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[INFO] [stderr]    Compiling maybe-uninit v2.0.0
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[INFO] [stderr]     Checking unicode-normalization v0.1.24
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[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]    Compiling syn v2.0.79
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[INFO] [stderr]     Checking matches v0.1.10
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[INFO] [stderr]    Compiling cc v1.1.22
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking rand_core v0.3.1
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[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking gimli v0.31.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
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[INFO] [stderr]    Compiling failure_derive v0.1.8
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[INFO] [stderr]     Checking effin v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `operations` is never used
[INFO] [stdout]   --> src/lib.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl FoaasClient {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |     fn operations(&self) -> Result<Vec<Operation>> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.45s
[INFO] running `Command { std: "docker" "inspect" "f72a7bb470a4a921801c90ca26633b90640fdfaaa4460ef4acac3a43796d2e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f72a7bb470a4a921801c90ca26633b90640fdfaaa4460ef4acac3a43796d2e96", kill_on_drop: false }`
[INFO] [stdout] f72a7bb470a4a921801c90ca26633b90640fdfaaa4460ef4acac3a43796d2e96