[INFO] fetching crate pacosso 0.2.5...
[INFO] checking pacosso-0.2.5 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate pacosso 0.2.5 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate pacosso 0.2.5
[INFO] finished tweaking crates.io crate pacosso 0.2.5
[INFO] tweaked toml for crates.io crate pacosso 0.2.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pacosso 0.2.5 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40b6f307f3232994749345baad40bf5f9386339729a87ab1d8aeb23f1f4888d3
[INFO] running `Command { std: "docker" "start" "-a" "40b6f307f3232994749345baad40bf5f9386339729a87ab1d8aeb23f1f4888d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40b6f307f3232994749345baad40bf5f9386339729a87ab1d8aeb23f1f4888d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40b6f307f3232994749345baad40bf5f9386339729a87ab1d8aeb23f1f4888d3", kill_on_drop: false }`
[INFO] [stdout] 40b6f307f3232994749345baad40bf5f9386339729a87ab1d8aeb23f1f4888d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9a1a718a3627a43b6d44530fa1ad0f22b190ceeb0e6da915dde132f3b64b4ba
[INFO] running `Command { std: "docker" "start" "-a" "b9a1a718a3627a43b6d44530fa1ad0f22b190ceeb0e6da915dde132f3b64b4ba", kill_on_drop: false }`
[INFO] [stderr]     Checking pacosso v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:265:36
[INFO] [stdout]     |
[INFO] [stdout] 265 |    pub fn new(opts: Opts, reader: &'a mut R) -> Stream<R> {
[INFO] [stdout]     |                                    ^^           --------- the lifetime gets resolved as `'a`
[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 consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 265 |    pub fn new(opts: Opts, reader: &'a mut R) -> Stream<'a, R> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:265:36
[INFO] [stdout]     |
[INFO] [stdout] 265 |    pub fn new(opts: Opts, reader: &'a mut R) -> Stream<R> {
[INFO] [stdout]     |                                    ^^           --------- the lifetime gets resolved as `'a`
[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 consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 265 |    pub fn new(opts: Opts, reader: &'a mut R) -> Stream<'a, R> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/test.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn to_stream(input: &mut Input) -> ByteStream {
[INFO] [stdout]    |                     ^^^^^^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn to_stream(input: &mut Input) -> ByteStream<'_> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "b9a1a718a3627a43b6d44530fa1ad0f22b190ceeb0e6da915dde132f3b64b4ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9a1a718a3627a43b6d44530fa1ad0f22b190ceeb0e6da915dde132f3b64b4ba", kill_on_drop: false }`
[INFO] [stdout] b9a1a718a3627a43b6d44530fa1ad0f22b190ceeb0e6da915dde132f3b64b4ba