[INFO] fetching crate rust-format 0.3.4...
[INFO] checking rust-format-0.3.4 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate rust-format 0.3.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate rust-format 0.3.4
[INFO] finished tweaking crates.io crate rust-format 0.3.4
[INFO] tweaked toml for crates.io crate rust-format 0.3.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-format 0.3.4 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding prettyplease v0.1.25 (available: v0.2.37)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.110)
[INFO] [stderr]       Adding temp-env v0.2.0 (available: v0.3.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded temp-env v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48a543e4721bcfbee0fce1dfca72c89e5a7b13f14d72ad8f7abb5e9670b55b70
[INFO] running `Command { std: "docker" "start" "-a" "48a543e4721bcfbee0fce1dfca72c89e5a7b13f14d72ad8f7abb5e9670b55b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48a543e4721bcfbee0fce1dfca72c89e5a7b13f14d72ad8f7abb5e9670b55b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48a543e4721bcfbee0fce1dfca72c89e5a7b13f14d72ad8f7abb5e9670b55b70", kill_on_drop: false }`
[INFO] [stdout] 48a543e4721bcfbee0fce1dfca72c89e5a7b13f14d72ad8f7abb5e9670b55b70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05f65f0b33f984a0e8d16da996f7468dee7219af01e61e9c9fc9f7c420c67d6b
[INFO] running `Command { std: "docker" "start" "-a" "05f65f0b33f984a0e8d16da996f7468dee7219af01e61e9c9fc9f7c420c67d6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking temp-env v0.2.0
[INFO] [stderr]     Checking rust-format v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:33:38
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub(crate) fn replace_markers(s: &str, _replace_doc_blocks: bool) -> Result<Cow<str>, Error> {
[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] 33 |     pub(crate) fn replace_markers(s: &str, _replace_doc_blocks: bool) -> Result<Cow<'_, str>, Error> {
[INFO] [stdout]    |                                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:33:38
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub(crate) fn replace_markers(s: &str, _replace_doc_blocks: bool) -> Result<Cow<str>, Error> {
[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] 33 |     pub(crate) fn replace_markers(s: &str, _replace_doc_blocks: bool) -> Result<Cow<'_, str>, Error> {
[INFO] [stdout]    |                                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "05f65f0b33f984a0e8d16da996f7468dee7219af01e61e9c9fc9f7c420c67d6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f65f0b33f984a0e8d16da996f7468dee7219af01e61e9c9fc9f7c420c67d6b", kill_on_drop: false }`
[INFO] [stdout] 05f65f0b33f984a0e8d16da996f7468dee7219af01e61e9c9fc9f7c420c67d6b