[INFO] fetching crate remain 0.2.15...
[INFO] checking remain-0.2.15 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-150727
[INFO] extracting crate remain 0.2.15 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate remain 0.2.15
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate remain 0.2.15
[INFO] tweaked toml for crates.io crate remain 0.2.15 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate remain 0.2.15 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate remain 0.2.15 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71d972be8229ba20ecf72c094ff7f08064d9499651645a5659d6263fd12fa5da
[INFO] running `Command { std: "docker" "start" "-a" "71d972be8229ba20ecf72c094ff7f08064d9499651645a5659d6263fd12fa5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71d972be8229ba20ecf72c094ff7f08064d9499651645a5659d6263fd12fa5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d972be8229ba20ecf72c094ff7f08064d9499651645a5659d6263fd12fa5da", kill_on_drop: false }`
[INFO] [stdout] 71d972be8229ba20ecf72c094ff7f08064d9499651645a5659d6263fd12fa5da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e36bb388685d1921610fa856e90a9c5dbca0a08ec08c68545d7ea686b72f8f3
[INFO] running `Command { std: "docker" "start" "-a" "7e36bb388685d1921610fa856e90a9c5dbca0a08ec08c68545d7ea686b72f8f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]     Checking unicode-ident v1.0.17
[INFO] [stderr]     Checking winnow v0.7.3
[INFO] [stderr]     Checking indexmap v2.7.1
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]     Checking syn v2.0.99
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking toml_edit v0.22.24
[INFO] [stderr]     Checking remain v0.2.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/atom.rs:70:27
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn iter_atoms(string: &str) -> AtomIter {
[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] 70 | pub fn iter_atoms(string: &str) -> AtomIter<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/atom.rs:70:27
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn iter_atoms(string: &str) -> AtomIter {
[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] 70 | pub fn iter_atoms(string: &str) -> AtomIter<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking toml v0.8.20
[INFO] [stderr]     Checking trybuild v1.0.103
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/atom.rs:70:27
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn iter_atoms(string: &str) -> AtomIter {
[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] 70 | pub fn iter_atoms(string: &str) -> AtomIter<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.94s
[INFO] running `Command { std: "docker" "inspect" "7e36bb388685d1921610fa856e90a9c5dbca0a08ec08c68545d7ea686b72f8f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e36bb388685d1921610fa856e90a9c5dbca0a08ec08c68545d7ea686b72f8f3", kill_on_drop: false }`
[INFO] [stdout] 7e36bb388685d1921610fa856e90a9c5dbca0a08ec08c68545d7ea686b72f8f3