[INFO] cloning repository https://github.com/radu-matei/wal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/radu-matei/wal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fradu-matei%2Fwal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fradu-matei%2Fwal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 677c5243052109b5960fb27c3543467d3adfbf7c
[INFO] checking radu-matei/wal against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fradu-matei%2Fwal" "/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/radu-matei/wal on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/radu-matei/wal
[INFO] finished tweaking git repo https://github.com/radu-matei/wal
[INFO] tweaked toml for git repo https://github.com/radu-matei/wal written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/radu-matei/wal already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", 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] 79867146d760695301de0aa77b5203a77bcfd3facae41fbdfd456dc9a650ccc3
[INFO] running `Command { std: "docker" "start" "-a" "79867146d760695301de0aa77b5203a77bcfd3facae41fbdfd456dc9a650ccc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79867146d760695301de0aa77b5203a77bcfd3facae41fbdfd456dc9a650ccc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79867146d760695301de0aa77b5203a77bcfd3facae41fbdfd456dc9a650ccc3", kill_on_drop: false }`
[INFO] [stdout] 79867146d760695301de0aa77b5203a77bcfd3facae41fbdfd456dc9a650ccc3
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 034f2ccc583265e1bc4c25663613c82ad4c1d0d5fc944861f7305648ab8c3c9f
[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" "034f2ccc583265e1bc4c25663613c82ad4c1d0d5fc944861f7305648ab8c3c9f", kill_on_drop: false }`
[INFO] [stderr]     Checking wal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ReadBytesExt`
[INFO] [stdout]  --> src/code.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
[INFO] [stdout]   |                            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error`, `result`
[INFO] [stdout]  --> src/code.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{error, fmt, io, result};
[INFO] [stdout]   |           ^^^^^           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `lexer::Lexer`, `parser::Parser`
[INFO] [stdout]  --> src/eval.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     lexer::Lexer,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 7 |     object::{Environment, Function, Object},
[INFO] [stdout] 8 |     parser::Parser,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token`
[INFO] [stdout]  --> src/repl.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{eval, lexer, object, parser, token};
[INFO] [stdout]   |                                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ReadBytesExt`
[INFO] [stdout]  --> src/code.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
[INFO] [stdout]   |                            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error`, `result`
[INFO] [stdout]  --> src/code.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{error, fmt, io, result};
[INFO] [stdout]   |           ^^^^^           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token`
[INFO] [stdout]  --> src/repl.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{eval, lexer, object, parser, token};
[INFO] [stdout]   |                                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/code.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |             _ => Err(CodeError::UknownOpCode(format!(
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/code.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn parse(buf: &[u8]) -> Result<Self, CodeError> {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/compiler.rs:20:31
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn compile(&mut self, node: Node) -> Result<(), CompilerError> {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/code.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |             _ => Err(CodeError::UknownOpCode(format!(
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/code.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn parse(buf: &[u8]) -> Result<Self, CodeError> {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/compiler.rs:20:31
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn compile(&mut self, node: Node) -> Result<(), CompilerError> {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `One`
[INFO] [stdout]   --> src/code.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     One = 1,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `One`
[INFO] [stdout]   --> src/code.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     One = 1,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "034f2ccc583265e1bc4c25663613c82ad4c1d0d5fc944861f7305648ab8c3c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "034f2ccc583265e1bc4c25663613c82ad4c1d0d5fc944861f7305648ab8c3c9f", kill_on_drop: false }`
[INFO] [stdout] 034f2ccc583265e1bc4c25663613c82ad4c1d0d5fc944861f7305648ab8c3c9f