[INFO] fetching crate itf 0.4.0...
[INFO] checking itf-0.4.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate itf 0.4.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate itf 0.4.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate itf 0.4.0
[INFO] tweaked toml for crates.io crate itf 0.4.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate itf 0.4.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate itf 0.4.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1115b0e44e6c50b48bdf5fc2f6b0b994f31d6211b2b750eefbb7311e28d801de
[INFO] running `Command { std: "docker" "start" "-a" "1115b0e44e6c50b48bdf5fc2f6b0b994f31d6211b2b750eefbb7311e28d801de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1115b0e44e6c50b48bdf5fc2f6b0b994f31d6211b2b750eefbb7311e28d801de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1115b0e44e6c50b48bdf5fc2f6b0b994f31d6211b2b750eefbb7311e28d801de", kill_on_drop: false }`
[INFO] [stdout] 1115b0e44e6c50b48bdf5fc2f6b0b994f31d6211b2b750eefbb7311e28d801de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e45db715b28b238dd7eb58925eacddf47af9d83cc260924aa3372dd94d12d3d5
[INFO] running `Command { std: "docker" "start" "-a" "e45db715b28b238dd7eb58925eacddf47af9d83cc260924aa3372dd94d12d3d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking num-modular v0.6.1
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking dashu-base v0.4.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking num-order v1.2.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling serde_with_macros v3.12.0
[INFO] [stderr]     Checking serde_with v3.12.0
[INFO] [stderr]     Checking dashu-int v0.4.1
[INFO] [stderr]     Checking itf v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/de/deserializer.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn unexpected(&self) -> Unexpected {
[INFO] [stdout]    |                   ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn unexpected(&self) -> Unexpected<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/de/deserializer.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn unexpected(&self) -> Unexpected {
[INFO] [stdout]    |                   ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn unexpected(&self) -> Unexpected<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.71s
[INFO] running `Command { std: "docker" "inspect" "e45db715b28b238dd7eb58925eacddf47af9d83cc260924aa3372dd94d12d3d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e45db715b28b238dd7eb58925eacddf47af9d83cc260924aa3372dd94d12d3d5", kill_on_drop: false }`
[INFO] [stdout] e45db715b28b238dd7eb58925eacddf47af9d83cc260924aa3372dd94d12d3d5