[INFO] cloning repository https://github.com/onContentStop/silver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/onContentStop/silver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FonContentStop%2Fsilver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FonContentStop%2Fsilver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e51c32189839b24c029eb52c87f9b4ed3b0c75a0
[INFO] checking onContentStop/silver against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FonContentStop%2Fsilver" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/onContentStop/silver
[INFO] finished tweaking git repo https://github.com/onContentStop/silver
[INFO] tweaked toml for git repo https://github.com/onContentStop/silver written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/onContentStop/silver on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/onContentStop/silver 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook v0.1.16
[INFO] [stderr]   Downloaded credibility v0.1.3
[INFO] [stderr]   Downloaded mio v0.7.6
[INFO] [stderr]   Downloaded proptest v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9289d1bdb0ee38ccd5956392e53f5ab706d53c9c3e8c7a56bb7c20f0bfd4e373
[INFO] running `Command { std: "docker" "start" "-a" "9289d1bdb0ee38ccd5956392e53f5ab706d53c9c3e8c7a56bb7c20f0bfd4e373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9289d1bdb0ee38ccd5956392e53f5ab706d53c9c3e8c7a56bb7c20f0bfd4e373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9289d1bdb0ee38ccd5956392e53f5ab706d53c9c3e8c7a56bb7c20f0bfd4e373", kill_on_drop: false }`
[INFO] [stdout] 9289d1bdb0ee38ccd5956392e53f5ab706d53c9c3e8c7a56bb7c20f0bfd4e373
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5e6afd580027e1e14c3f00e1075c66a6f7ec3fb25be38081451ba70dd0661af
[INFO] running `Command { std: "docker" "start" "-a" "c5e6afd580027e1e14c3f00e1075c66a6f7ec3fb25be38081451ba70dd0661af", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.1
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking crossterm v0.18.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking credibility v0.1.3
[INFO] [stderr]     Checking silver-language v0.1.0 (/opt/rustwide/workdir/silver-language)
[INFO] [stdout] warning: trait `BoundNode` is never used
[INFO] [stdout]  --> silver-language/src/analysis/binding/bound_node.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) trait BoundNode {
[INFO] [stdout]   |                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BoundNodeKind` is never used
[INFO] [stdout]  --> silver-language/src/analysis/binding/bound_node_kind.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(crate) enum BoundNodeKind {
[INFO] [stdout]   |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `span` is never used
[INFO] [stdout]   --> silver-language/src/analysis/syntax/syntax_node.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait SyntaxNodeExt {
[INFO] [stdout]    |           ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn span(&self) -> TextSpan;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BoundNode` is never used
[INFO] [stdout]  --> silver-language/src/analysis/binding/bound_node.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) trait BoundNode {
[INFO] [stdout]   |                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BoundNodeKind` is never used
[INFO] [stdout]  --> silver-language/src/analysis/binding/bound_node_kind.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(crate) enum BoundNodeKind {
[INFO] [stdout]   |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SyntaxKindWithText` is never used
[INFO] [stdout]   --> silver-language/src/analysis/syntax/syntax_facts.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) trait SyntaxKindWithText {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `text` and `span` are never used
[INFO] [stdout]   --> silver-language/src/analysis/syntax/syntax_node.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait SyntaxNodeExt {
[INFO] [stdout]    |           ------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn text(&self) -> Option<&str>;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 16 |     fn span(&self) -> TextSpan;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking silver v0.1.0 (/opt/rustwide/workdir/silver)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.44s
[INFO] running `Command { std: "docker" "inspect" "c5e6afd580027e1e14c3f00e1075c66a6f7ec3fb25be38081451ba70dd0661af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5e6afd580027e1e14c3f00e1075c66a6f7ec3fb25be38081451ba70dd0661af", kill_on_drop: false }`
[INFO] [stdout] c5e6afd580027e1e14c3f00e1075c66a6f7ec3fb25be38081451ba70dd0661af