[INFO] cloning repository https://github.com/matsadler/project_root
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matsadler/project_root" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatsadler%2Fproject_root", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatsadler%2Fproject_root'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e84733c7c85a2c64e7308a3f950682dd4023bfe6
[INFO] checking matsadler/project_root against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatsadler%2Fproject_root" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matsadler/project_root
[INFO] finished tweaking git repo https://github.com/matsadler/project_root
[INFO] tweaked toml for git repo https://github.com/matsadler/project_root written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matsadler/project_root on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matsadler/project_root 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee3baa7698783d00e9841e473d6e8d633e82ea3d100a6876c39ce539a05db2a6
[INFO] running `Command { std: "docker" "start" "-a" "ee3baa7698783d00e9841e473d6e8d633e82ea3d100a6876c39ce539a05db2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee3baa7698783d00e9841e473d6e8d633e82ea3d100a6876c39ce539a05db2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee3baa7698783d00e9841e473d6e8d633e82ea3d100a6876c39ce539a05db2a6", kill_on_drop: false }`
[INFO] [stdout] ee3baa7698783d00e9841e473d6e8d633e82ea3d100a6876c39ce539a05db2a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f95ef5bc8485e96f4dbe2cf9b7e90478f5d4eab3bcaaf829b373b07d3bfdd5d3
[INFO] running `Command { std: "docker" "start" "-a" "f95ef5bc8485e96f4dbe2cf9b7e90478f5d4eab3bcaaf829b373b07d3bfdd5d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking stderrlog v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking project_root v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn find_root(marker: &str, top_down: bool) -> Result<PathBuf, FindError> {
[INFO] [stdout]    |                          ^^^^ the lifetime is elided here         ^^^^^^^^^ the same lifetime is hidden 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] 51 | pub fn find_root(marker: &str, top_down: bool) -> Result<PathBuf, FindError<'_>> {
[INFO] [stdout]    |                                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:108:29
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn prepare_output(path: &Path, basename: bool) -> Result<&str, OutputError> {
[INFO] [stdout]     |                             ^^^^^                            ^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |                                |
[INFO] [stdout]     |                             |                                the same lifetime is elided here
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn prepare_output(path: &Path, basename: bool) -> Result<&str, OutputError<'_>> {
[INFO] [stdout]     |                                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn find_root(marker: &str, top_down: bool) -> Result<PathBuf, FindError> {
[INFO] [stdout]    |                          ^^^^ the lifetime is elided here         ^^^^^^^^^ the same lifetime is hidden 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] 51 | pub fn find_root(marker: &str, top_down: bool) -> Result<PathBuf, FindError<'_>> {
[INFO] [stdout]    |                                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:108:29
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn prepare_output(path: &Path, basename: bool) -> Result<&str, OutputError> {
[INFO] [stdout]     |                             ^^^^^                            ^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |                                |
[INFO] [stdout]     |                             |                                the same lifetime is elided here
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn prepare_output(path: &Path, basename: bool) -> Result<&str, OutputError<'_>> {
[INFO] [stdout]     |                                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     /// Marker file that appears in the root directory
[INFO] [stdout] 20 | |     #[structopt(name = "FILE")]
[INFO] [stdout] 21 | |     marker: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `project_root` (bin "project_root" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     /// Marker file that appears in the root directory
[INFO] [stdout] 20 | |     #[structopt(name = "FILE")]
[INFO] [stdout] 21 | |     marker: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `project_root` (bin "project_root") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f95ef5bc8485e96f4dbe2cf9b7e90478f5d4eab3bcaaf829b373b07d3bfdd5d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f95ef5bc8485e96f4dbe2cf9b7e90478f5d4eab3bcaaf829b373b07d3bfdd5d3", kill_on_drop: false }`
[INFO] [stdout] f95ef5bc8485e96f4dbe2cf9b7e90478f5d4eab3bcaaf829b373b07d3bfdd5d3
