[INFO] fetching crate rmem 0.2.0...
[INFO] checking rmem-0.2.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate rmem 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rmem 0.2.0
[INFO] finished tweaking crates.io crate rmem 0.2.0
[INFO] tweaked toml for crates.io crate rmem 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmem 0.2.0 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] crate crates.io crate rmem 0.2.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0764ef7007b892180c9e41b806bf3dcfdbcd9829b37f55ffa4b0055b88e51068
[INFO] running `Command { std: "docker" "start" "-a" "0764ef7007b892180c9e41b806bf3dcfdbcd9829b37f55ffa4b0055b88e51068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0764ef7007b892180c9e41b806bf3dcfdbcd9829b37f55ffa4b0055b88e51068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0764ef7007b892180c9e41b806bf3dcfdbcd9829b37f55ffa4b0055b88e51068", kill_on_drop: false }`
[INFO] [stdout] 0764ef7007b892180c9e41b806bf3dcfdbcd9829b37f55ffa4b0055b88e51068
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0d820f565b09b5709b70c3aba160f75d445b62983e262880e97da704e5237bd5
[INFO] running `Command { std: "docker" "start" "-a" "0d820f565b09b5709b70c3aba160f75d445b62983e262880e97da704e5237bd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking getargs v0.4.1
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rmem v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/modules/arguments.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn parse_args<'a>(opts: &'a Options<'a, String>) -> Result<Args> {
[INFO] [stdout]    |                          ^^         ^^              ------------ the lifetime gets resolved as `'a`
[INFO] [stdout]    |                          |          |
[INFO] [stdout]    |                          |          these lifetimes flow to the output
[INFO] [stdout]    |                          these lifetimes flow 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] 28 | fn parse_args<'a>(opts: &'a Options<'a, String>) -> Result<'a, Args> {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/modules/arguments.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn parse_args<'a>(opts: &'a Options<'a, String>) -> Result<Args> {
[INFO] [stdout]    |                          ^^         ^^              ------------ the lifetime gets resolved as `'a`
[INFO] [stdout]    |                          |          |
[INFO] [stdout]    |                          |          these lifetimes flow to the output
[INFO] [stdout]    |                          these lifetimes flow 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] 28 | fn parse_args<'a>(opts: &'a Options<'a, String>) -> Result<'a, Args> {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.30s
[INFO] running `Command { std: "docker" "inspect" "0d820f565b09b5709b70c3aba160f75d445b62983e262880e97da704e5237bd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d820f565b09b5709b70c3aba160f75d445b62983e262880e97da704e5237bd5", kill_on_drop: false }`
[INFO] [stdout] 0d820f565b09b5709b70c3aba160f75d445b62983e262880e97da704e5237bd5