[INFO] fetching crate wu 0.1.0...
[INFO] checking wu-0.1.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate wu 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate wu 0.1.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wu 0.1.0
[INFO] finished tweaking crates.io crate wu 0.1.0
[INFO] tweaked toml for crates.io crate wu 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate wu 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d67aa82f0da21e64867d343672e8729add102aaed57f90c4e6307267e47dbde5
[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" "d67aa82f0da21e64867d343672e8729add102aaed57f90c4e6307267e47dbde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d67aa82f0da21e64867d343672e8729add102aaed57f90c4e6307267e47dbde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d67aa82f0da21e64867d343672e8729add102aaed57f90c4e6307267e47dbde5", kill_on_drop: false }`
[INFO] [stdout] d67aa82f0da21e64867d343672e8729add102aaed57f90c4e6307267e47dbde5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] a591a7268dd3b6d50befbd27e32841e152530033eb37750625cc014137ac0880
[INFO] running `Command { std: "docker" "start" "-a" "a591a7268dd3b6d50befbd27e32841e152530033eb37750625cc014137ac0880", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking fs_extra v1.2.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking fd-lock v3.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking tinyvec v1.4.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.45+curl-7.78.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.21
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]     Checking rustyline v9.0.0
[INFO] [stderr]     Checking git2 v0.6.11
[INFO] [stderr]     Checking wu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `params_t`
[INFO] [stdout]     --> src/wu/visitor/visitor.rs:1085:25
[INFO] [stdout]      |
[INFO] [stdout] 1085 |                     let params_t = Type::new(TypeNode::Any, TypeMode::Splat(None));
[INFO] [stdout]      |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_params_t`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params_t`
[INFO] [stdout]     --> src/wu/visitor/visitor.rs:1085:25
[INFO] [stdout]      |
[INFO] [stdout] 1085 |                     let params_t = Type::new(TypeNode::Any, TypeMode::Splat(None));
[INFO] [stdout]      |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_params_t`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExternBlock`
[INFO] [stdout]   --> src/wu/parser/ast.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ExternBlock(Rc<Statement>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nothing`
[INFO] [stdout]    --> src/wu/visitor/visitor.rs:343:5
[INFO] [stdout]     |
[INFO] [stdout] 343 |     Nothing,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExternBlock`
[INFO] [stdout]   --> src/wu/parser/ast.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ExternBlock(Rc<Statement>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nothing`
[INFO] [stdout]    --> src/wu/visitor/visitor.rs:343:5
[INFO] [stdout]     |
[INFO] [stdout] 343 |     Nothing,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.40s
[INFO] running `Command { std: "docker" "inspect" "a591a7268dd3b6d50befbd27e32841e152530033eb37750625cc014137ac0880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a591a7268dd3b6d50befbd27e32841e152530033eb37750625cc014137ac0880", kill_on_drop: false }`
[INFO] [stdout] a591a7268dd3b6d50befbd27e32841e152530033eb37750625cc014137ac0880