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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nemo157/cargo-build-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNemo157%2Fcargo-build-tree", kill_on_drop: false }`
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[INFO] [stdout] 1861cb088dbd55aa9b1e1cf02f7dd1155fc4228b
[INFO] checking Nemo157/cargo-build-tree against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNemo157%2Fcargo-build-tree" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Nemo157/cargo-build-tree
[INFO] finished tweaking git repo https://github.com/Nemo157/cargo-build-tree
[INFO] tweaked toml for git repo https://github.com/Nemo157/cargo-build-tree written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nemo157/cargo-build-tree on toolchain b1f2594eac607c1f051534800237eeedb5590a49
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[INFO] crate git repo https://github.com/Nemo157/cargo-build-tree 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 6c7cceaeff9c826ed94922a465cb5ea259ff4024fd9f344d83c26dbc390cdafb
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[INFO] running `Command { std: "docker" "inspect" "6c7cceaeff9c826ed94922a465cb5ea259ff4024fd9f344d83c26dbc390cdafb", kill_on_drop: false }`
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[INFO] [stdout] 6c7cceaeff9c826ed94922a465cb5ea259ff4024fd9f344d83c26dbc390cdafb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 137a25f3ca817d5bc98594e10e4a320878e1d8799b587c431cd4a417045a69b9
[INFO] running `Command { std: "docker" "start" "-a" "137a25f3ca817d5bc98594e10e4a320878e1d8799b587c431cd4a417045a69b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking codemap v0.1.3
[INFO] [stderr]     Checking annotate-snippets v0.6.1
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[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.22
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[INFO] [stdout] warning: fields `extern_crate_name`, `public`, and `noprelude` are never read
[INFO] [stdout]  --> src/unit_graph.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Dependency {
[INFO] [stdout]   |            ---------- fields in this struct
[INFO] [stdout] 6 |     pub index: usize,
[INFO] [stdout] 7 |     pub extern_crate_name: String,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 |     pub public: bool,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 9 |     pub noprelude: bool,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Dependency` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `crate_types`, `src_path`, `edition`, and `doctest` are never read
[INFO] [stdout]   --> src/unit_graph.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Target {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     pub kind: Vec<String>,
[INFO] [stdout] 22 |     pub crate_types: Vec<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 23 |     pub name: String,
[INFO] [stdout] 24 |     pub src_path: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 25 |     pub edition: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 26 |     pub doctest: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/unit_graph.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Profile {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 31 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 32 |     pub opt_level: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 33 |     pub lto: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 34 |     pub codegen_units: Option<u32>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 35 |     pub debuginfo: Option<u32>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 36 |     pub debug_assertions: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 37 |     pub overflow_checks: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 38 |     pub rpath: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 39 |     pub incremental: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 40 |     pub panic: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `profile` and `features` are never read
[INFO] [stdout]    --> src/unit_graph.rs:99:9
[INFO] [stdout]     |
[INFO] [stdout]  96 | pub struct Unit {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  99 |     pub profile: Profile,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub features: Vec<String>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Unit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]    --> src/unit_graph.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub struct UnitGraph {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 130 |     pub version: u8,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UnitGraph` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/print.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     writeln!(self.buffer, "{:1$} ⚠️ {2:?}: {3}", "", indent + 2, diagnostic.level, diagnostic.message);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     let _ = writeln!(self.buffer, "{:1$} ⚠️ {2:?}: {3}", "", indent + 2, diagnostic.level, diagnostic.message);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `extern_crate_name`, `public`, and `noprelude` are never read
[INFO] [stdout]  --> src/unit_graph.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Dependency {
[INFO] [stdout]   |            ---------- fields in this struct
[INFO] [stdout] 6 |     pub index: usize,
[INFO] [stdout] 7 |     pub extern_crate_name: String,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 |     pub public: bool,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 9 |     pub noprelude: bool,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Dependency` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `crate_types`, `src_path`, `edition`, and `doctest` are never read
[INFO] [stdout]   --> src/unit_graph.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Target {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     pub kind: Vec<String>,
[INFO] [stdout] 22 |     pub crate_types: Vec<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 23 |     pub name: String,
[INFO] [stdout] 24 |     pub src_path: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 25 |     pub edition: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 26 |     pub doctest: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/unit_graph.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Profile {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 31 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 32 |     pub opt_level: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 33 |     pub lto: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 34 |     pub codegen_units: Option<u32>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 35 |     pub debuginfo: Option<u32>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 36 |     pub debug_assertions: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 37 |     pub overflow_checks: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 38 |     pub rpath: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 39 |     pub incremental: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 40 |     pub panic: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `profile` and `features` are never read
[INFO] [stdout]    --> src/unit_graph.rs:99:9
[INFO] [stdout]     |
[INFO] [stdout]  96 | pub struct Unit {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  99 |     pub profile: Profile,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub features: Vec<String>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Unit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]    --> src/unit_graph.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub struct UnitGraph {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 130 |     pub version: u8,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UnitGraph` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/print.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     writeln!(self.buffer, "{:1$} ⚠️ {2:?}: {3}", "", indent + 2, diagnostic.level, diagnostic.message);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     let _ = writeln!(self.buffer, "{:1$} ⚠️ {2:?}: {3}", "", indent + 2, diagnostic.level, diagnostic.message);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.06s
[INFO] running `Command { std: "docker" "inspect" "137a25f3ca817d5bc98594e10e4a320878e1d8799b587c431cd4a417045a69b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "137a25f3ca817d5bc98594e10e4a320878e1d8799b587c431cd4a417045a69b9", kill_on_drop: false }`
[INFO] [stdout] 137a25f3ca817d5bc98594e10e4a320878e1d8799b587c431cd4a417045a69b9
