[INFO] fetching crate c3-inheritance 0.0.0...
[INFO] checking c3-inheritance-0.0.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate c3-inheritance 0.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate c3-inheritance 0.0.0
[INFO] finished tweaking crates.io crate c3-inheritance 0.0.0
[INFO] tweaked toml for crates.io crate c3-inheritance 0.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate c3-inheritance 0.0.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e496e66b8d3e0b035e88cfc77689eb8f823181e7f1d4c849a9ce2674b2b47c4
[INFO] running `Command { std: "docker" "start" "-a" "8e496e66b8d3e0b035e88cfc77689eb8f823181e7f1d4c849a9ce2674b2b47c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e496e66b8d3e0b035e88cfc77689eb8f823181e7f1d4c849a9ce2674b2b47c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e496e66b8d3e0b035e88cfc77689eb8f823181e7f1d4c849a9ce2674b2b47c4", kill_on_drop: false }`
[INFO] [stdout] 8e496e66b8d3e0b035e88cfc77689eb8f823181e7f1d4c849a9ce2674b2b47c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b09d68153625d784f233838e4d814f14fad7ecea05f9c23688db5228204e771
[INFO] running `Command { std: "docker" "start" "-a" "0b09d68153625d784f233838e4d814f14fad7ecea05f9c23688db5228204e771", kill_on_drop: false }`
[INFO] [stderr]     Checking c3-inheritance v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `graph` is never read
[INFO] [stdout]   --> src/c3/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct InheritLinearized<'a> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 18 |     graph: &'a InheritGraph,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InheritLinearized` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_virtual` is never read
[INFO] [stdout]   --> src/c3/mod.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct BaseClass {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 88 |     class: String,
[INFO] [stdout] 89 |     is_virtual: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BaseClass` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `overloads` are never read
[INFO] [stdout]   --> src/c3/mod.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct C3ClassMember {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 95 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 96 |     overloads: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `C3ClassMember` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MemberKind` is never used
[INFO] [stdout]   --> src/c3/mod.rs:99:10
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub enum MemberKind {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/c3/algorithm.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn linearize(&self) -> LinearizeResult<InheritLinearized> {
[INFO] [stdout]    |                      ^^^^^                     ----------------- the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn linearize(&self) -> LinearizeResult<InheritLinearized<'_>> {
[INFO] [stdout]    |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `graph` is never read
[INFO] [stdout]   --> src/c3/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct InheritLinearized<'a> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 18 |     graph: &'a InheritGraph,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InheritLinearized` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_virtual` is never read
[INFO] [stdout]   --> src/c3/mod.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct BaseClass {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 88 |     class: String,
[INFO] [stdout] 89 |     is_virtual: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BaseClass` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `overloads` are never read
[INFO] [stdout]   --> src/c3/mod.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct C3ClassMember {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 95 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 96 |     overloads: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `C3ClassMember` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MemberKind` is never used
[INFO] [stdout]   --> src/c3/mod.rs:99:10
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub enum MemberKind {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/c3/algorithm.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn linearize(&self) -> LinearizeResult<InheritLinearized> {
[INFO] [stdout]    |                      ^^^^^                     ----------------- the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn linearize(&self) -> LinearizeResult<InheritLinearized<'_>> {
[INFO] [stdout]    |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "0b09d68153625d784f233838e4d814f14fad7ecea05f9c23688db5228204e771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b09d68153625d784f233838e4d814f14fad7ecea05f9c23688db5228204e771", kill_on_drop: false }`
[INFO] [stdout] 0b09d68153625d784f233838e4d814f14fad7ecea05f9c23688db5228204e771