[INFO] fetching crate espr 0.3.0...
[INFO] checking espr-0.3.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate espr 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate espr 0.3.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate espr 0.3.0
[INFO] finished tweaking crates.io crate espr 0.3.0
[INFO] tweaked toml for crates.io crate espr 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate espr 0.3.0 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded similar v2.1.0
[INFO] [stderr]   Downloaded katexit v0.1.2
[INFO] [stderr]   Downloaded check_keyword v0.1.1
[INFO] [stderr]   Downloaded semver v1.0.10
[INFO] [stderr]   Downloaded insta v1.14.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 505b80bbc37a8e22147f95b08500bde0352e11243a861944e261e16232b66f74
[INFO] running `Command { std: "docker" "start" "-a" "505b80bbc37a8e22147f95b08500bde0352e11243a861944e261e16232b66f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "505b80bbc37a8e22147f95b08500bde0352e11243a861944e261e16232b66f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "505b80bbc37a8e22147f95b08500bde0352e11243a861944e261e16232b66f74", kill_on_drop: false }`
[INFO] [stdout] 505b80bbc37a8e22147f95b08500bde0352e11243a861944e261e16232b66f74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d7cc6fac4cc7f7cddeea475d35c1ff86464476861025582aa1f6060258ba9b7
[INFO] running `Command { std: "docker" "start" "-a" "6d7cc6fac4cc7f7cddeea475d35c1ff86464476861025582aa1f6060258ba9b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking check_keyword v0.1.1
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking similar v2.1.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling katexit v0.1.2
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking espr v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `entity::*`
[INFO] [stdout]   --> src/codegen/rust/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use entity::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `local_inner_macro` isn't a valid `#[macro_export]` argument
[INFO] [stdout]   --> src/ast/mod.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[macro_export(local_inner_macro)]
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_macro_export_arguments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/schema.rs:106:13
[INFO] [stdout]     |
[INFO] [stdout] 106 |         for mut param in &mut params {
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_yaml v0.8.24
[INFO] [stderr]     Checking insta v1.14.1
[INFO] [stdout] warning: unused import: `entity::*`
[INFO] [stdout]   --> src/codegen/rust/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use entity::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `local_inner_macro` isn't a valid `#[macro_export]` argument
[INFO] [stdout]   --> src/ast/mod.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[macro_export(local_inner_macro)]
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_macro_export_arguments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/schema.rs:106:13
[INFO] [stdout]     |
[INFO] [stdout] 106 |         for mut param in &mut params {
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.55s
[INFO] running `Command { std: "docker" "inspect" "6d7cc6fac4cc7f7cddeea475d35c1ff86464476861025582aa1f6060258ba9b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d7cc6fac4cc7f7cddeea475d35c1ff86464476861025582aa1f6060258ba9b7", kill_on_drop: false }`
[INFO] [stdout] 6d7cc6fac4cc7f7cddeea475d35c1ff86464476861025582aa1f6060258ba9b7