[INFO] cloning repository https://github.com/deryilz/basic-hm-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deryilz/basic-hm-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderyilz%2Fbasic-hm-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderyilz%2Fbasic-hm-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9435c1b881034fc63b0dd5c0134f43613d383ebb
[INFO] checking deryilz/basic-hm-rust against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderyilz%2Fbasic-hm-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/deryilz/basic-hm-rust
[INFO] finished tweaking git repo https://github.com/deryilz/basic-hm-rust
[INFO] tweaked toml for git repo https://github.com/deryilz/basic-hm-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/deryilz/basic-hm-rust on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/deryilz/basic-hm-rust 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sized-chunks v0.6.5
[INFO] [stderr]   Downloaded rand_xoshiro v0.6.0
[INFO] [stderr]   Downloaded im v15.1.0
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c40e5a61edfad2a6cece1582929e7f40dfa229deb16b87ea2d10a45373aced2
[INFO] running `Command { std: "docker" "start" "-a" "0c40e5a61edfad2a6cece1582929e7f40dfa229deb16b87ea2d10a45373aced2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c40e5a61edfad2a6cece1582929e7f40dfa229deb16b87ea2d10a45373aced2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c40e5a61edfad2a6cece1582929e7f40dfa229deb16b87ea2d10a45373aced2", kill_on_drop: false }`
[INFO] [stdout] 0c40e5a61edfad2a6cece1582929e7f40dfa229deb16b87ea2d10a45373aced2
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63ca3b9762eb97ebe32d4b8fda0fb7cbf0ead983cd1ddde8b69c2e5c47cb25a6
[INFO] running `Command { std: "docker" "start" "-a" "63ca3b9762eb97ebe32d4b8fda0fb7cbf0ead983cd1ddde8b69c2e5c47cb25a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking toy-typechecker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/structs.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     IntLiteral(i32),
[INFO] [stdout]   |     ---------- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     IntLiteral(i32),
[INFO] [stdout] 4 +     IntLiteral(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BoolLiteral` and `Let` are never constructed
[INFO] [stdout]   --> src/structs.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub enum Node {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 4  |     IntLiteral(i32),
[INFO] [stdout] 5  |     BoolLiteral(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     Let(String, Box<Node>, Box<Node>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `bool`, `set`, and `to_string` are never used
[INFO] [stdout]   --> src/structs.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Node {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn bool(b: bool) -> Node {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn set(name: &str, value: Node, rest: Node) -> Node {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/structs.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     IntLiteral(i32),
[INFO] [stdout]   |     ---------- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     IntLiteral(i32),
[INFO] [stdout] 4 +     IntLiteral(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BoolLiteral` and `Let` are never constructed
[INFO] [stdout]   --> src/structs.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub enum Node {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 4  |     IntLiteral(i32),
[INFO] [stdout] 5  |     BoolLiteral(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     Let(String, Box<Node>, Box<Node>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `bool`, `set`, and `to_string` are never used
[INFO] [stdout]   --> src/structs.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Node {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn bool(b: bool) -> Node {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn set(name: &str, value: Node, rest: Node) -> Node {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "63ca3b9762eb97ebe32d4b8fda0fb7cbf0ead983cd1ddde8b69c2e5c47cb25a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ca3b9762eb97ebe32d4b8fda0fb7cbf0ead983cd1ddde8b69c2e5c47cb25a6", kill_on_drop: false }`
[INFO] [stdout] 63ca3b9762eb97ebe32d4b8fda0fb7cbf0ead983cd1ddde8b69c2e5c47cb25a6
