[INFO] fetching crate senml-deser 0.2.1...
[INFO] checking senml-deser-0.2.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate senml-deser 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate senml-deser 0.2.1
[INFO] finished tweaking crates.io crate senml-deser 0.2.1
[INFO] tweaked toml for crates.io crate senml-deser 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate senml-deser 0.2.1 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 senml-deser 0.2.1 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ac370cc204cfd39c2b914f4a56970a45ca7d7881d4badecd12b1e9a12505870f
[INFO] running `Command { std: "docker" "start" "-a" "ac370cc204cfd39c2b914f4a56970a45ca7d7881d4badecd12b1e9a12505870f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac370cc204cfd39c2b914f4a56970a45ca7d7881d4badecd12b1e9a12505870f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac370cc204cfd39c2b914f4a56970a45ca7d7881d4badecd12b1e9a12505870f", kill_on_drop: false }`
[INFO] [stdout] ac370cc204cfd39c2b914f4a56970a45ca7d7881d4badecd12b1e9a12505870f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] fb7f308ba54face3c8254862ac97ef15add69f49f84bcb809e4bcd3d3143974d
[INFO] running `Command { std: "docker" "start" "-a" "fb7f308ba54face3c8254862ac97ef15add69f49f84bcb809e4bcd3d3143974d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.49
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking senml-deser v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/deser/de.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |         &'de mut self,
[INFO] [stdout]    |          ^^^ these lifetimes flow to the output
[INFO] [stdout] 25 |         value: &'de [u8],
[INFO] [stdout]    |                 ^^^ these lifetimes flow to the output
[INFO] [stdout] 26 |         scratch: &mut [u8],
[INFO] [stdout] 27 |     ) -> Result<Pack<Cbor>, crate::Error> {
[INFO] [stdout]    |                 ---------- the lifetime gets resolved as `'de`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'de`
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ) -> Result<Pack<'de, Cbor>, crate::Error> {
[INFO] [stdout]    |                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/deser/de.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |         &'de mut self,
[INFO] [stdout]    |          ^^^ these lifetimes flow to the output
[INFO] [stdout] 25 |         value: &'de [u8],
[INFO] [stdout]    |                 ^^^ these lifetimes flow to the output
[INFO] [stdout] 26 |         scratch: &mut [u8],
[INFO] [stdout] 27 |     ) -> Result<Pack<Cbor>, crate::Error> {
[INFO] [stdout]    |                 ---------- the lifetime gets resolved as `'de`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'de`
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ) -> Result<Pack<'de, Cbor>, crate::Error> {
[INFO] [stdout]    |                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.80s
[INFO] running `Command { std: "docker" "inspect" "fb7f308ba54face3c8254862ac97ef15add69f49f84bcb809e4bcd3d3143974d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb7f308ba54face3c8254862ac97ef15add69f49f84bcb809e4bcd3d3143974d", kill_on_drop: false }`
[INFO] [stdout] fb7f308ba54face3c8254862ac97ef15add69f49f84bcb809e4bcd3d3143974d