[INFO] cloning repository https://github.com/hdbg/obfs.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hdbg/obfs.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdbg%2Fobfs.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdbg%2Fobfs.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 853b9c60d8182f95c585b9217734e134866e8d11
[INFO] checking hdbg/obfs.rs against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdbg%2Fobfs.rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hdbg/obfs.rs on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hdbg/obfs.rs
[INFO] finished tweaking git repo https://github.com/hdbg/obfs.rs
[INFO] tweaked toml for git repo https://github.com/hdbg/obfs.rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hdbg/obfs.rs 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" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 580ae444339c487603a3277611b51300cf387e4800d87a1be97f6262ce754afa
[INFO] running `Command { std: "docker" "start" "-a" "580ae444339c487603a3277611b51300cf387e4800d87a1be97f6262ce754afa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "580ae444339c487603a3277611b51300cf387e4800d87a1be97f6262ce754afa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "580ae444339c487603a3277611b51300cf387e4800d87a1be97f6262ce754afa", kill_on_drop: false }`
[INFO] [stdout] 580ae444339c487603a3277611b51300cf387e4800d87a1be97f6262ce754afa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 012690634ea22f0906827bdff02643a591f5a89a60f3b8f499cd88d863b04e93
[INFO] running `Command { std: "docker" "start" "-a" "012690634ea22f0906827bdff02643a591f5a89a60f3b8f499cd88d863b04e93", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking syn v2.0.57
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking obfs-macro v0.1.0 (/opt/rustwide/workdir/obfs-macro)
[INFO] [stderr]     Checking obfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] Block {
[INFO] [stdout]     brace_token: Brace,
[INFO] [stdout]     stmts: [
[INFO] [stdout]         Stmt::Local {
[INFO] [stdout]             attrs: [],
[INFO] [stdout]             let_token: Let,
[INFO] [stdout]             pat: Pat::Ident {
[INFO] [stdout]                 attrs: [],
[INFO] [stdout]                 by_ref: None,
[INFO] [stdout]                 mutability: Some(
[INFO] [stdout]                     Mut,
[INFO] [stdout]                 ),
[INFO] [stdout]                 ident: Ident {
[INFO] [stdout]                     ident: "a",
[INFO] [stdout]                     span: #0 bytes(132..133),
[INFO] [stdout]                 },
[INFO] [stdout]                 subpat: None,
[INFO] [stdout]             },
[INFO] [stdout]             init: Some(
[INFO] [stdout]                 LocalInit {
[INFO] [stdout]                     eq_token: Eq,
[INFO] [stdout]                     expr: Expr::Lit {
[INFO] [stdout]                         attrs: [],
[INFO] [stdout]                         lit: Lit::Int {
[INFO] [stdout]                             token: 123,
[INFO] [stdout]                         },
[INFO] [stdout]                     },
[INFO] [stdout]                     diverge: None,
[INFO] [stdout]                 },
[INFO] [stdout]             ),
[INFO] [stdout]             semi_token: Semi,
[INFO] [stdout]         },
[INFO] [stdout]         Stmt::Expr(
[INFO] [stdout]             Expr::Binary {
[INFO] [stdout]                 attrs: [],
[INFO] [stdout]                 left: Expr::Path {
[INFO] [stdout]                     attrs: [],
[INFO] [stdout]                     qself: None,
[INFO] [stdout]                     path: Path {
[INFO] [stdout]                         leading_colon: None,
[INFO] [stdout]                         segments: [
[INFO] [stdout]                             PathSegment {
[INFO] [stdout]                                 ident: Ident {
[INFO] [stdout]                                     ident: "a",
[INFO] [stdout]                                     span: #0 bytes(153..154),
[INFO] [stdout]                                 },
[INFO] [stdout]                                 arguments: PathArguments::None,
[INFO] [stdout]                             },
[INFO] [stdout]                         ],
[INFO] [stdout]                     },
[INFO] [stdout]                 },
[INFO] [stdout]                 op: BinOp::AddAssign(
[INFO] [stdout]                     PlusEq,
[INFO] [stdout]                 ),
[INFO] [stdout]                 right: Expr::Lit {
[INFO] [stdout]                     attrs: [],
[INFO] [stdout]                     lit: Lit::Int {
[INFO] [stdout]                         token: 233,
[INFO] [stdout]                     },
[INFO] [stdout]                 },
[INFO] [stdout]             },
[INFO] [stdout]             Some(
[INFO] [stdout]                 Semi,
[INFO] [stdout]             ),
[INFO] [stdout]         ),
[INFO] [stdout]     ],
[INFO] [stdout] }
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/lib.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `a` is assigned to, but never used
[INFO] [stdout]  --> src/lib.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 |             let mut a = 123;
[INFO] [stdout]   |                     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_a` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]  --> src/lib.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |             a += 233;
[INFO] [stdout]   |             ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.74s
[INFO] running `Command { std: "docker" "inspect" "012690634ea22f0906827bdff02643a591f5a89a60f3b8f499cd88d863b04e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "012690634ea22f0906827bdff02643a591f5a89a60f3b8f499cd88d863b04e93", kill_on_drop: false }`
[INFO] [stdout] 012690634ea22f0906827bdff02643a591f5a89a60f3b8f499cd88d863b04e93