[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] testing hdbg/obfs.rs against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdbg%2Fobfs.rs" "/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/hdbg/obfs.rs on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "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-0-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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.79
[INFO] [stderr]   Downloaded quote v1.0.35
[INFO] [stderr]   Downloaded getrandom v0.2.12
[INFO] [stderr]   Downloaded syn v2.0.57
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb80d60d4bee0af5e766ac4c86d6ecac89acd79c5103799eb2f93b6e4cde21eb
[INFO] running `Command { std: "docker" "start" "-a" "bb80d60d4bee0af5e766ac4c86d6ecac89acd79c5103799eb2f93b6e4cde21eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb80d60d4bee0af5e766ac4c86d6ecac89acd79c5103799eb2f93b6e4cde21eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb80d60d4bee0af5e766ac4c86d6ecac89acd79c5103799eb2f93b6e4cde21eb", kill_on_drop: false }`
[INFO] [stdout] bb80d60d4bee0af5e766ac4c86d6ecac89acd79c5103799eb2f93b6e4cde21eb
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ab43c90db3d1d62269f763ae800b3be559838548042fe09b3f110c2de469de1
[INFO] running `Command { std: "docker" "start" "-a" "9ab43c90db3d1d62269f763ae800b3be559838548042fe09b3f110c2de469de1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling obfs-macro v0.1.0 (/opt/rustwide/workdir/obfs-macro)
[INFO] [stderr]    Compiling obfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.82s
[INFO] running `Command { std: "docker" "inspect" "9ab43c90db3d1d62269f763ae800b3be559838548042fe09b3f110c2de469de1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ab43c90db3d1d62269f763ae800b3be559838548042fe09b3f110c2de469de1", kill_on_drop: false }`
[INFO] [stdout] 9ab43c90db3d1d62269f763ae800b3be559838548042fe09b3f110c2de469de1
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d148351d04836a599b05e7f8e2e9d1b4d6085188894cd5fa3e3668b4afa81cf
[INFO] running `Command { std: "docker" "start" "-a" "1d148351d04836a599b05e7f8e2e9d1b4d6085188894cd5fa3e3668b4afa81cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "1d148351d04836a599b05e7f8e2e9d1b4d6085188894cd5fa3e3668b4afa81cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d148351d04836a599b05e7f8e2e9d1b4d6085188894cd5fa3e3668b4afa81cf", kill_on_drop: false }`
[INFO] [stdout] 1d148351d04836a599b05e7f8e2e9d1b4d6085188894cd5fa3e3668b4afa81cf
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 07bfbc5bde6a04ddced2255fa2d632ee183a71be0bb85fa074c70232a0f2c604
[INFO] running `Command { std: "docker" "start" "-a" "07bfbc5bde6a04ddced2255fa2d632ee183a71be0bb85fa074c70232a0f2c604", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]  --> src/lib.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     use super::*;
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `a` is assigned to, but never used
[INFO] [stderr]  --> src/lib.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 |             let mut a = 123;
[INFO] [stderr]   |                     ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider using `_a` instead
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a` is never read
[INFO] [stderr]  --> src/lib.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 |             a += 233;
[INFO] [stderr]   |             ^
[INFO] [stderr]   |
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `obfs` (lib test) generated 3 warnings (run `cargo fix --lib -p obfs --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/obfs-c2950aef743ad042)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests obfs
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07bfbc5bde6a04ddced2255fa2d632ee183a71be0bb85fa074c70232a0f2c604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07bfbc5bde6a04ddced2255fa2d632ee183a71be0bb85fa074c70232a0f2c604", kill_on_drop: false }`
[INFO] [stdout] 07bfbc5bde6a04ddced2255fa2d632ee183a71be0bb85fa074c70232a0f2c604