[INFO] cloning repository https://github.com/StoJ57/compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StoJ57/compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStoJ57%2Fcompiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStoJ57%2Fcompiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d488ce719b5b1f0cb696d1c8c6452583fa9de76
[INFO] checking StoJ57/compiler against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStoJ57%2Fcompiler" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StoJ57/compiler on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/StoJ57/compiler
[INFO] finished tweaking git repo https://github.com/StoJ57/compiler
[INFO] tweaked toml for git repo https://github.com/StoJ57/compiler written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/StoJ57/compiler 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded match_cast v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38424495378c6e83623f3d1e0fc3524e5c46b1b0aa6f0ef09921134839234268
[INFO] running `Command { std: "docker" "start" "-a" "38424495378c6e83623f3d1e0fc3524e5c46b1b0aa6f0ef09921134839234268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38424495378c6e83623f3d1e0fc3524e5c46b1b0aa6f0ef09921134839234268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38424495378c6e83623f3d1e0fc3524e5c46b1b0aa6f0ef09921134839234268", kill_on_drop: false }`
[INFO] [stdout] 38424495378c6e83623f3d1e0fc3524e5c46b1b0aa6f0ef09921134839234268
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac333dfa302e30a01a38acabba21af24f2f4ab4a4ae4e16bbe10c3723d04c7f7
[INFO] running `Command { std: "docker" "start" "-a" "ac333dfa302e30a01a38acabba21af24f2f4ab4a4ae4e16bbe10c3723d04c7f7", kill_on_drop: false }`
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking match_cast v0.1.2
[INFO] [stderr]     Checking regex v1.7.0
[INFO] [stderr]     Checking compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]   --> src/parser/ast.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         scope: &mut tac::Scope,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/parser/ast.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         target: u64,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strict_target`
[INFO] [stdout]   --> src/parser/ast.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         strict_target: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_strict_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]   --> src/parser/ast.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         scope: &mut tac::Scope,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/parser/ast.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         target: u64,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strict_target`
[INFO] [stdout]   --> src/parser/ast.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         strict_target: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_strict_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]    --> src/parser/ast.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         scope: &mut tac::Scope,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/parser/ast.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         target: u64,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strict_target`
[INFO] [stdout]    --> src/parser/ast.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         strict_target: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_strict_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]    --> src/parser/ast.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         scope: &mut tac::Scope,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/parser/ast.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         target: u64,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strict_target`
[INFO] [stdout]    --> src/parser/ast.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         strict_target: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_strict_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/compiler/asm.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Register {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 7 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Register` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `free_register` is never used
[INFO] [stdout]   --> src/compiler/asm.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl RegisterSet {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn free_register(&mut self, i: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compile_address` is never used
[INFO] [stdout]   --> src/compiler/asm.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub trait Dialect {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 43 |     fn compile_address(&mut self, addr: &tac::Address) -> String;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Subtract` is never constructed
[INFO] [stdout]   --> src/compiler/tac.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum Line {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 21 |     Add(Address, Address),      // A += B
[INFO] [stdout] 22 |     Subtract(Address, Address), // A -= B
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Line` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `jump_counter` is never read
[INFO] [stdout]   --> src/compiler/tac.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Scope {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     var_counter: u64,
[INFO] [stdout] 40 |     jump_counter: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Scope` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `jump_label` is never used
[INFO] [stdout]   --> src/compiler/tac.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl Scope {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn jump_label(&mut self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `DECLARE` and `EXPRESSION` are never constructed
[INFO] [stdout]    --> src/parser/ast.rs:231:5
[INFO] [stdout]     |
[INFO] [stdout] 230 | pub enum Statement {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] 231 |     DECLARE,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 232 |     RETURN(Box<dyn Expression>),
[INFO] [stdout] 233 |     EXPRESSION,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/compiler/asm.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Register {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 7 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Register` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `free_register` is never used
[INFO] [stdout]   --> src/compiler/asm.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl RegisterSet {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn free_register(&mut self, i: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compile_address` is never used
[INFO] [stdout]   --> src/compiler/asm.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub trait Dialect {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 43 |     fn compile_address(&mut self, addr: &tac::Address) -> String;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Subtract` is never constructed
[INFO] [stdout]   --> src/compiler/tac.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum Line {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 21 |     Add(Address, Address),      // A += B
[INFO] [stdout] 22 |     Subtract(Address, Address), // A -= B
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Line` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `jump_counter` is never read
[INFO] [stdout]   --> src/compiler/tac.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Scope {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     var_counter: u64,
[INFO] [stdout] 40 |     jump_counter: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Scope` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `jump_label` is never used
[INFO] [stdout]   --> src/compiler/tac.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl Scope {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn jump_label(&mut self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `DECLARE` and `EXPRESSION` are never constructed
[INFO] [stdout]    --> src/parser/ast.rs:231:5
[INFO] [stdout]     |
[INFO] [stdout] 230 | pub enum Statement {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] 231 |     DECLARE,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 232 |     RETURN(Box<dyn Expression>),
[INFO] [stdout] 233 |     EXPRESSION,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "ac333dfa302e30a01a38acabba21af24f2f4ab4a4ae4e16bbe10c3723d04c7f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac333dfa302e30a01a38acabba21af24f2f4ab4a4ae4e16bbe10c3723d04c7f7", kill_on_drop: false }`
[INFO] [stdout] ac333dfa302e30a01a38acabba21af24f2f4ab4a4ae4e16bbe10c3723d04c7f7
[INFO] checking StoJ57/compiler against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStoJ57%2Fcompiler" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StoJ57/compiler on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/StoJ57/compiler
[INFO] finished tweaking git repo https://github.com/StoJ57/compiler
[INFO] tweaked toml for git repo https://github.com/StoJ57/compiler written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/StoJ57/compiler 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba8fea683f3f0ad820262544bbcfd84af3ad556149e47bf6377611d4a20b6db8
[INFO] running `Command { std: "docker" "start" "-a" "ba8fea683f3f0ad820262544bbcfd84af3ad556149e47bf6377611d4a20b6db8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba8fea683f3f0ad820262544bbcfd84af3ad556149e47bf6377611d4a20b6db8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8fea683f3f0ad820262544bbcfd84af3ad556149e47bf6377611d4a20b6db8", kill_on_drop: false }`
[INFO] [stdout] ba8fea683f3f0ad820262544bbcfd84af3ad556149e47bf6377611d4a20b6db8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dac36cd56dc1377cbd12d214bd2e2432c754d15b7950eb2c315cb83d407be72
[INFO] running `Command { std: "docker" "start" "-a" "7dac36cd56dc1377cbd12d214bd2e2432c754d15b7950eb2c315cb83d407be72", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking match_cast v0.1.2
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking regex v1.7.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.7.0/src/exec.rs:848:13
[INFO] [stdout]     |
[INFO] [stdout] 848 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 849 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 850 | |                 self.cache.value(),
[INFO] [stdout] 851 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 862 | |                 Quit => return Some(Quit),
[INFO] [stdout] 863 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7dac36cd56dc1377cbd12d214bd2e2432c754d15b7950eb2c315cb83d407be72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dac36cd56dc1377cbd12d214bd2e2432c754d15b7950eb2c315cb83d407be72", kill_on_drop: false }`
[INFO] [stdout] 7dac36cd56dc1377cbd12d214bd2e2432c754d15b7950eb2c315cb83d407be72