[INFO] cloning repository https://github.com/xttjsn/decaf-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xttjsn/decaf-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxttjsn%2Fdecaf-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxttjsn%2Fdecaf-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 092e306f7d6d5a15c2118b1114a53bb53b5fd46d
[INFO] checking xttjsn/decaf-rust against master#0da95bd8698d9edd684e0978e888ad1bd29f19ba for pr-125923-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxttjsn%2Fdecaf-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xttjsn/decaf-rust on toolchain 0da95bd8698d9edd684e0978e888ad1bd29f19ba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0da95bd8698d9edd684e0978e888ad1bd29f19ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xttjsn/decaf-rust
[INFO] finished tweaking git repo https://github.com/xttjsn/decaf-rust
[INFO] tweaked toml for git repo https://github.com/xttjsn/decaf-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xttjsn/decaf-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" "+0da95bd8698d9edd684e0978e888ad1bd29f19ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tempfile v2.2.0
[INFO] [stderr]   Downloaded rdrand v0.4.0
[INFO] [stderr]   Downloaded winapi-build v0.1.1
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.1
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded matches v0.1.8
[INFO] [stderr]   Downloaded semver-parser v0.7.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded unicode-width v0.1.6
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] [stderr]   Downloaded semver v0.9.0
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded cc v1.0.47
[INFO] [stderr]   Downloaded llvm-sys v80.1.1
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded proc-macro2 v0.4.30
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded kernel32-sys v0.2.2
[INFO] [stderr]   Downloaded lalr v0.0.2
[INFO] [stderr]   Downloaded vec_map v0.6.0
[INFO] [stderr]   Downloaded plex v0.2.5
[INFO] [stderr]   Downloaded syn v0.15.44
[INFO] [stderr]   Downloaded bit-vec v0.4.4
[INFO] [stderr]   Downloaded redfa v0.0.2
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded unicode-xid v0.1.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded bit-set v0.4.0
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded quote v0.6.13
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded winapi v0.2.8
[INFO] [stderr]   Downloaded libc v0.2.66
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0da95bd8698d9edd684e0978e888ad1bd29f19ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98f4a8d438b5ef6c74b349101770db97b9ae544c043c0f658c8c7b346dab9a0a
[INFO] running `Command { std: "docker" "start" "-a" "98f4a8d438b5ef6c74b349101770db97b9ae544c043c0f658c8c7b346dab9a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98f4a8d438b5ef6c74b349101770db97b9ae544c043c0f658c8c7b346dab9a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98f4a8d438b5ef6c74b349101770db97b9ae544c043c0f658c8c7b346dab9a0a", kill_on_drop: false }`
[INFO] [stdout] 98f4a8d438b5ef6c74b349101770db97b9ae544c043c0f658c8c7b346dab9a0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0da95bd8698d9edd684e0978e888ad1bd29f19ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a28a0c26c227b8a8ff8b7795a74af37c29d3fe4ade38b1f1d435694a2db157f
[INFO] running `Command { std: "docker" "start" "-a" "8a28a0c26c227b8a8ff8b7795a74af37c29d3fe4ade38b1f1d435694a2db157f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling lalr v0.0.2
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling redfa v0.0.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling llvm-sys v80.1.1
[INFO] [stderr]    Compiling plex v0.2.5
[INFO] [stderr]     Checking decaf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `matches_macro` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(matches_macro)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `matches_macro` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(matches_macro)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FormalArgList` is never constructed
[INFO] [stdout]    --> src/lnp.rs:339:16
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub struct FormalArgList {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FormalArgList` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FormalArgList` is never constructed
[INFO] [stdout]    --> src/lnp.rs:339:16
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub struct FormalArgList {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FormalArgList` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.12s
[INFO] running `Command { std: "docker" "inspect" "8a28a0c26c227b8a8ff8b7795a74af37c29d3fe4ade38b1f1d435694a2db157f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a28a0c26c227b8a8ff8b7795a74af37c29d3fe4ade38b1f1d435694a2db157f", kill_on_drop: false }`
[INFO] [stdout] 8a28a0c26c227b8a8ff8b7795a74af37c29d3fe4ade38b1f1d435694a2db157f