[INFO] cloning repository https://github.com/Siriusmart/latex-ast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Siriusmart/latex-ast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiriusmart%2Flatex-ast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiriusmart%2Flatex-ast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc5f529d394fe1eeb31ac8cc2036c71536b87eaf
[INFO] checking Siriusmart/latex-ast against 47574b82ff3fe9b0a45ff65a4fe189e295ecb748 for pr-160780
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiriusmart%2Flatex-ast" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Siriusmart/latex-ast
[INFO] finished tweaking git repo https://github.com/Siriusmart/latex-ast
[INFO] tweaked toml for git repo https://github.com/Siriusmart/latex-ast written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Siriusmart/latex-ast on toolchain 47574b82ff3fe9b0a45ff65a4fe189e295ecb748
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47574b82ff3fe9b0a45ff65a4fe189e295ecb748" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Siriusmart/latex-ast 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" "+47574b82ff3fe9b0a45ff65a4fe189e295ecb748" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 18847b7d57b064747277129e9b9944bf87cf5743d511d847656f819f3b07be6e
[INFO] running `Command { std: "docker" "start" "18847b7d57b064747277129e9b9944bf87cf5743d511d847656f819f3b07be6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18847b7d57b064747277129e9b9944bf87cf5743d511d847656f819f3b07be6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "18847b7d57b064747277129e9b9944bf87cf5743d511d847656f819f3b07be6e" "/opt/rustwide/cargo-home/bin/cargo" "+47574b82ff3fe9b0a45ff65a4fe189e295ecb748" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18847b7d57b064747277129e9b9944bf87cf5743d511d847656f819f3b07be6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "18847b7d57b064747277129e9b9944bf87cf5743d511d847656f819f3b07be6e" "/opt/rustwide/cargo-home/bin/cargo" "+47574b82ff3fe9b0a45ff65a4fe189e295ecb748" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking latex-ast v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/ast3/document.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, fmt::Display, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/ast4/document.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/ast3/document.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, fmt::Display, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/ast4/document.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/tests/ast3.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/ast3/document.rs:370:53
[INFO] [stdout]     |
[INFO] [stdout] 370 | ...                   if let Some((k, v)) = arg.split_once('=') {
[INFO] [stdout]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/ast3/document.rs:370:53
[INFO] [stdout]     |
[INFO] [stdout] 370 | ...                   if let Some((k, v)) = arg.split_once('=') {
[INFO] [stdout]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/chunk.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn from(value: ast3::Chunk) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/chunkvariant.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn from(value: ast3::ChunkVariant) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]  --> src/ast4/command.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn from(value: ast3::Command) -> Self {
[INFO] [stdout]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/document.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn from(value: ast3::Document) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]  --> src/ast4/environment.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn from(value: ast3::Environment) -> Self {
[INFO] [stdout]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/mathsblock.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn from(value: ast3::MathsBlock) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/mathstype.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn from(value: ast3::MathsType) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/mathsvariant.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn from(value: ast3::MathsVariant) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/scope.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn from(value: ast3::Scope) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/scopevariant.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn from(value: ast3::ScopeVariant) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/chunk.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn from(value: ast3::Chunk) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/chunkvariant.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn from(value: ast3::ChunkVariant) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]  --> src/ast4/command.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn from(value: ast3::Command) -> Self {
[INFO] [stdout]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/document.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn from(value: ast3::Document) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]  --> src/ast4/environment.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn from(value: ast3::Environment) -> Self {
[INFO] [stdout]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/mathsblock.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn from(value: ast3::MathsBlock) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/mathstype.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn from(value: ast3::MathsType) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/mathsvariant.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn from(value: ast3::MathsVariant) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/scope.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn from(value: ast3::Scope) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast4/scopevariant.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn from(value: ast3::ScopeVariant) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "18847b7d57b064747277129e9b9944bf87cf5743d511d847656f819f3b07be6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18847b7d57b064747277129e9b9944bf87cf5743d511d847656f819f3b07be6e", kill_on_drop: false }`
[INFO] [stdout] 18847b7d57b064747277129e9b9944bf87cf5743d511d847656f819f3b07be6e