[INFO] fetching crate roughenough 1.3.0-draft14...
[INFO] checking roughenough-1.3.0-draft14 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate roughenough 1.3.0-draft14 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate roughenough 1.3.0-draft14
[INFO] finished tweaking crates.io crate roughenough 1.3.0-draft14
[INFO] tweaked toml for crates.io crate roughenough 1.3.0-draft14 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate roughenough 1.3.0-draft14 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 crates.io crate roughenough 1.3.0-draft14 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 35403fff1dda3e7852acaa711818886965e4fc79f508c75375f09237b4983731
[INFO] running `Command { std: "docker" "start" "-a" "35403fff1dda3e7852acaa711818886965e4fc79f508c75375f09237b4983731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35403fff1dda3e7852acaa711818886965e4fc79f508c75375f09237b4983731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35403fff1dda3e7852acaa711818886965e4fc79f508c75375f09237b4983731", kill_on_drop: false }`
[INFO] [stdout] 35403fff1dda3e7852acaa711818886965e4fc79f508c75375f09237b4983731
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 13a3740c3a0f64421225965ee947ad603df94d796d51f39bc5ccd4d529f776b9
[INFO] running `Command { std: "docker" "start" "-a" "13a3740c3a0f64421225965ee947ad603df94d796d51f39bc5ccd4d529f776b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking clap_builder v4.5.38
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]     Checking clap v4.5.38
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]    Compiling cc v1.2.22
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking ctrlc v3.4.7
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking simple_logger v5.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling enum-iterator-derive v1.4.0
[INFO] [stderr]     Checking curve25519-dalek v4.1.3
[INFO] [stderr]     Checking enum-iterator v2.1.0
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]     Checking ed25519-dalek v2.1.1
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking roughenough v1.3.0-draft14 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/config/environment.rs:151:31
[INFO] [stdout]     |
[INFO] [stdout] 151 |               let tmp: String = persist_dir
[INFO] [stdout]     |  _______________________________^
[INFO] [stdout] 152 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/stats/mod.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn iter(&self) -> Iter<IpAddr, ClientStats>;
[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] 137 |     fn iter(&self) -> Iter<'_, IpAddr, ClientStats>;
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/stats/aggregated.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn iter(&self) -> Iter<IpAddr, ClientStats> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn iter(&self) -> Iter<'_, IpAddr, ClientStats> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/stats/per_client.rs:242:13
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn iter(&self) -> Iter<IpAddr, ClientStats> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn iter(&self) -> Iter<'_, IpAddr, ClientStats> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `roughenough` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "13a3740c3a0f64421225965ee947ad603df94d796d51f39bc5ccd4d529f776b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a3740c3a0f64421225965ee947ad603df94d796d51f39bc5ccd4d529f776b9", kill_on_drop: false }`
[INFO] [stdout] 13a3740c3a0f64421225965ee947ad603df94d796d51f39bc5ccd4d529f776b9
