[INFO] cloning repository https://github.com/Nemo157/cargo-doc-tree
[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-doc-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNemo157%2Fcargo-doc-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNemo157%2Fcargo-doc-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7ede716125644a29d81e725961815e5d0a3e4e4
[INFO] checking Nemo157/cargo-doc-tree against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNemo157%2Fcargo-doc-tree" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Nemo157/cargo-doc-tree
[INFO] finished tweaking git repo https://github.com/Nemo157/cargo-doc-tree
[INFO] tweaked toml for git repo https://github.com/Nemo157/cargo-doc-tree written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nemo157/cargo-doc-tree on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Nemo157/cargo-doc-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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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_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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abbf55f9fc7b2c2ab081195af910c104f0d276801e2ce0217b2583efbf9f9c40
[INFO] running `Command { std: "docker" "start" "-a" "abbf55f9fc7b2c2ab081195af910c104f0d276801e2ce0217b2583efbf9f9c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abbf55f9fc7b2c2ab081195af910c104f0d276801e2ce0217b2583efbf9f9c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abbf55f9fc7b2c2ab081195af910c104f0d276801e2ce0217b2583efbf9f9c40", kill_on_drop: false }`
[INFO] [stdout] abbf55f9fc7b2c2ab081195af910c104f0d276801e2ce0217b2583efbf9f9c40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a43bfaf5680ffe0da6ed13c4fecf911a040e5bbdc4aa68e09f6ffefabc8340d
[INFO] running `Command { std: "docker" "start" "-a" "3a43bfaf5680ffe0da6ed13c4fecf911a040e5bbdc4aa68e09f6ffefabc8340d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling camino v1.0.5
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking indent_write v2.2.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling fn-error-context v0.2.0
[INFO] [stderr]     Checking fehler v1.0.0
[INFO] [stderr]     Checking cargo-platform v0.1.2
[INFO] [stderr]     Checking rustdoc-types v0.11.0
[INFO] [stderr]     Checking cargo_metadata v0.14.1
[INFO] [stderr]     Checking cargo-doc-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/print.rs:399:49
[INFO] [stdout]     |
[INFO] [stdout] 399 |             rustdoc_types::Type::ResolvedPath { name, id, args, param_names } => {
[INFO] [stdout]     |                                                 ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `param_names`
[INFO] [stdout]    --> src/print.rs:399:65
[INFO] [stdout]     |
[INFO] [stdout] 399 |             rustdoc_types::Type::ResolvedPath { name, id, args, param_names } => {
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^ help: try ignoring the field: `param_names: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/print.rs:399:49
[INFO] [stdout]     |
[INFO] [stdout] 399 |             rustdoc_types::Type::ResolvedPath { name, id, args, param_names } => {
[INFO] [stdout]     |                                                 ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `param_names`
[INFO] [stdout]    --> src/print.rs:399:65
[INFO] [stdout]     |
[INFO] [stdout] 399 |             rustdoc_types::Type::ResolvedPath { name, id, args, param_names } => {
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^ help: try ignoring the field: `param_names: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bindings`
[INFO] [stdout]    --> src/print.rs:450:64
[INFO] [stdout]     |
[INFO] [stdout] 450 |             rustdoc_types::GenericArgs::AngleBracketed { args, bindings } => {
[INFO] [stdout]     |                                                                ^^^^^^^^ help: try ignoring the field: `bindings: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bindings`
[INFO] [stdout]    --> src/print.rs:450:64
[INFO] [stdout]     |
[INFO] [stdout] 450 |             rustdoc_types::GenericArgs::AngleBracketed { args, bindings } => {
[INFO] [stdout]     |                                                                ^^^^^^^^ help: try ignoring the field: `bindings: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/print.rs:552:19
[INFO] [stdout]     |
[INFO] [stdout] 552 |     fn fmt(&self, mut f: &mut Formatter<'_>) {
[INFO] [stdout]     |                   ----^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/print.rs:552:19
[INFO] [stdout]     |
[INFO] [stdout] 552 |     fn fmt(&self, mut f: &mut Formatter<'_>) {
[INFO] [stdout]     |                   ----^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/print.rs:357:17
[INFO] [stdout]     |
[INFO] [stdout] 357 |                 write!(f, "+ ");
[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] 357 |                 let _ = write!(f, "+ ");
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/print.rs:357:17
[INFO] [stdout]     |
[INFO] [stdout] 357 |                 write!(f, "+ ");
[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] 357 |                 let _ = write!(f, "+ ");
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/print.rs:20:75
[INFO] [stdout]    |
[INFO] [stdout] 20 |         pub(crate) fn nest<'b, U>(&'b self, name: &'b str, inner: U) -> P<'_, U> {
[INFO] [stdout]    |                                    --              --                     ^^ the same lifetime is elided here
[INFO] [stdout]    |                                    |               |
[INFO] [stdout]    |                                    |               the lifetime is named here
[INFO] [stdout]    |                                    the lifetime is named 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: consistently use `'b`
[INFO] [stdout]    |
[INFO] [stdout] 20 -         pub(crate) fn nest<'b, U>(&'b self, name: &'b str, inner: U) -> P<'_, U> {
[INFO] [stdout] 20 +         pub(crate) fn nest<'b, U>(&'b self, name: &'b str, inner: U) -> P<'b, U> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/print.rs:20:75
[INFO] [stdout]    |
[INFO] [stdout] 20 |         pub(crate) fn nest<'b, U>(&'b self, name: &'b str, inner: U) -> P<'_, U> {
[INFO] [stdout]    |                                    --              --                     ^^ the same lifetime is elided here
[INFO] [stdout]    |                                    |               |
[INFO] [stdout]    |                                    |               the lifetime is named here
[INFO] [stdout]    |                                    the lifetime is named 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: consistently use `'b`
[INFO] [stdout]    |
[INFO] [stdout] 20 -         pub(crate) fn nest<'b, U>(&'b self, name: &'b str, inner: U) -> P<'_, U> {
[INFO] [stdout] 20 +         pub(crate) fn nest<'b, U>(&'b self, name: &'b str, inner: U) -> P<'b, U> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.28s
[INFO] running `Command { std: "docker" "inspect" "3a43bfaf5680ffe0da6ed13c4fecf911a040e5bbdc4aa68e09f6ffefabc8340d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a43bfaf5680ffe0da6ed13c4fecf911a040e5bbdc4aa68e09f6ffefabc8340d", kill_on_drop: false }`
[INFO] [stdout] 3a43bfaf5680ffe0da6ed13c4fecf911a040e5bbdc4aa68e09f6ffefabc8340d
