[INFO] fetching crate calcite 0.2.6...
[INFO] checking calcite-0.2.6 against try#8832a71d49053449d3904572ee8f2c79da2104ae for pr-95953
[INFO] extracting crate calcite 0.2.6 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate calcite 0.2.6 on toolchain 8832a71d49053449d3904572ee8f2c79da2104ae
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8832a71d49053449d3904572ee8f2c79da2104ae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate calcite 0.2.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate calcite 0.2.6
[INFO] tweaked toml for crates.io crate calcite 0.2.6 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate calcite 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8832a71d49053449d3904572ee8f2c79da2104ae" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+8832a71d49053449d3904572ee8f2c79da2104ae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e0e69c1c3781589ea9baa340f09c86a96f441f81b72a90fe0d78762cb6da987
[INFO] running `Command { std: "docker" "start" "-a" "7e0e69c1c3781589ea9baa340f09c86a96f441f81b72a90fe0d78762cb6da987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e0e69c1c3781589ea9baa340f09c86a96f441f81b72a90fe0d78762cb6da987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e0e69c1c3781589ea9baa340f09c86a96f441f81b72a90fe0d78762cb6da987", kill_on_drop: false }`
[INFO] [stdout] 7e0e69c1c3781589ea9baa340f09c86a96f441f81b72a90fe0d78762cb6da987
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+8832a71d49053449d3904572ee8f2c79da2104ae" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fbefad854734b6e932d207801502c7b8287a8ec715846a8b54b0757f083af69
[INFO] running `Command { std: "docker" "start" "-a" "9fbefad854734b6e932d207801502c7b8287a8ec715846a8b54b0757f083af69", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cargo_gn v0.0.15
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking unicode-normalization v0.1.16
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling fslock v0.1.6
[INFO] [stderr]    Compiling calcite_proc_macros v0.1.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling pin-project-internal v1.0.4
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]     Checking pin-project v1.0.4
[INFO] [stderr]    Compiling which v4.0.2
[INFO] [stderr]    Compiling rusty_v8 v0.16.0
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking deno_core v0.77.0
[INFO] [stderr]     Checking calcite v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]   --> examples/sync.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     a: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Struct1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> examples/sync.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Deserialize, Debug)]
[INFO] [stdout]    |                       ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]   --> examples/sync.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     b: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Struct1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> examples/sync.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Deserialize, Debug)]
[INFO] [stdout]    |                       ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.49s
[INFO] running `Command { std: "docker" "inspect" "9fbefad854734b6e932d207801502c7b8287a8ec715846a8b54b0757f083af69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fbefad854734b6e932d207801502c7b8287a8ec715846a8b54b0757f083af69", kill_on_drop: false }`
[INFO] [stdout] 9fbefad854734b6e932d207801502c7b8287a8ec715846a8b54b0757f083af69