[INFO] cloning repository https://github.com/cole-btw/Logal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cole-btw/Logal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcole-btw%2FLogal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcole-btw%2FLogal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba8dc33db2d26fa55ef20d56b3acb2af11311ed2
[INFO] checking cole-btw/Logal against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcole-btw%2FLogal" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cole-btw/Logal on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cole-btw/Logal
[INFO] finished tweaking git repo https://github.com/cole-btw/Logal
[INFO] tweaked toml for git repo https://github.com/cole-btw/Logal written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35e5d5a76de3d0eeaa78a3e59f84dc645801f6dff9a5ad050933a551a176527f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "35e5d5a76de3d0eeaa78a3e59f84dc645801f6dff9a5ad050933a551a176527f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35e5d5a76de3d0eeaa78a3e59f84dc645801f6dff9a5ad050933a551a176527f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35e5d5a76de3d0eeaa78a3e59f84dc645801f6dff9a5ad050933a551a176527f", kill_on_drop: false }`
[INFO] [stdout] 35e5d5a76de3d0eeaa78a3e59f84dc645801f6dff9a5ad050933a551a176527f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a2afa4382d3145c1e4e1d7317ec1cb9b8f2bf73688fbfe9387649eeb272b9931
[INFO] running `Command { std: "docker" "start" "-a" "a2afa4382d3145c1e4e1d7317ec1cb9b8f2bf73688fbfe9387649eeb272b9931", kill_on_drop: false }`
[INFO] [stderr]     Checking logal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/ast.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         if let Expr = t.next { push(tree.clone(), side, data); } 
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `toke`
[INFO] [stdout]    --> src/main.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |         for toke in block.clone() {
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_toke`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Expr`
[INFO] [stdout]   --> src/ast.rs:72:16
[INFO] [stdout]    |
[INFO] [stdout] 72 |         if let Expr = t.next { push(tree.clone(), side, data); } 
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_Expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/ast.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |     if let Expr::Binary(mut t) = tree {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let mut trees: Vec<ast::Expr> = Vec::new();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let mut head = ast::Expr::Unary(ast::Unary::new(lex::TokenType::NULL, None));
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn push(mut tree: Expr, side: Arity, data: lex::TokenType)
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast.rs:71:24
[INFO] [stdout]    |
[INFO] [stdout] 71 |     if let Expr::Unary(mut t) = tree.clone() {
[INFO] [stdout]    |                        ----^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |     if let Expr::Binary(mut t) = tree {
[INFO] [stdout]    |                         ----^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Binary`
[INFO] [stdout]  --> src/ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Binary(Binary),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Literal`
[INFO] [stdout]  --> src/ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Literal(usize)
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/ast.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |    pub fn new(token: lex::TokenType, left: Option<Box<Expr>>, right: Option<Box<Expr>>) -> Binary
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Left`
[INFO] [stdout]   --> src/ast.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Left,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]   --> src/ast.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Right
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Expr` should have a snake case name
[INFO] [stdout]   --> src/ast.rs:72:16
[INFO] [stdout]    |
[INFO] [stdout] 72 |         if let Expr = t.next { push(tree.clone(), side, data); } 
[INFO] [stdout]    |                ^^^^ help: convert the identifier to snake case: `expr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/ast.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         if let Expr = t.next { push(tree.clone(), side, data); } 
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `toke`
[INFO] [stdout]    --> src/main.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |         for toke in block.clone() {
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_toke`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Expr`
[INFO] [stdout]   --> src/ast.rs:72:16
[INFO] [stdout]    |
[INFO] [stdout] 72 |         if let Expr = t.next { push(tree.clone(), side, data); } 
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_Expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/ast.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |     if let Expr::Binary(mut t) = tree {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let mut trees: Vec<ast::Expr> = Vec::new();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let mut head = ast::Expr::Unary(ast::Unary::new(lex::TokenType::NULL, None));
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn push(mut tree: Expr, side: Arity, data: lex::TokenType)
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast.rs:71:24
[INFO] [stdout]    |
[INFO] [stdout] 71 |     if let Expr::Unary(mut t) = tree.clone() {
[INFO] [stdout]    |                        ----^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |     if let Expr::Binary(mut t) = tree {
[INFO] [stdout]    |                         ----^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Binary`
[INFO] [stdout]  --> src/ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Binary(Binary),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Literal`
[INFO] [stdout]  --> src/ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Literal(usize)
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/ast.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |    pub fn new(token: lex::TokenType, left: Option<Box<Expr>>, right: Option<Box<Expr>>) -> Binary
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Left`
[INFO] [stdout]   --> src/ast.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Left,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]   --> src/ast.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Right
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Expr` should have a snake case name
[INFO] [stdout]   --> src/ast.rs:72:16
[INFO] [stdout]    |
[INFO] [stdout] 72 |         if let Expr = t.next { push(tree.clone(), side, data); } 
[INFO] [stdout]    |                ^^^^ help: convert the identifier to snake case: `expr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "a2afa4382d3145c1e4e1d7317ec1cb9b8f2bf73688fbfe9387649eeb272b9931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2afa4382d3145c1e4e1d7317ec1cb9b8f2bf73688fbfe9387649eeb272b9931", kill_on_drop: false }`
[INFO] [stdout] a2afa4382d3145c1e4e1d7317ec1cb9b8f2bf73688fbfe9387649eeb272b9931