[INFO] fetching crate buffertk 0.13.0...
[INFO] checking buffertk-0.13.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate buffertk 0.13.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate buffertk 0.13.0
[INFO] finished tweaking crates.io crate buffertk 0.13.0
[INFO] tweaked toml for crates.io crate buffertk 0.13.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate buffertk 0.13.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate buffertk 0.13.0 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded statslicer v0.9.0
[INFO] [stderr]   Downloaded guacamole v0.14.0
[INFO] [stderr]   Downloaded arrrg_derive v0.8.0
[INFO] [stderr]   Downloaded derive_util v0.5.0
[INFO] [stderr]   Downloaded arrrg v0.8.0
[INFO] [stderr]   Downloaded sig_fig_histogram v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b28951e7e8b67d812d8ec867735b3f37548bbdd4e2735a8bb4e9d917ce51011
[INFO] running `Command { std: "docker" "start" "-a" "9b28951e7e8b67d812d8ec867735b3f37548bbdd4e2735a8bb4e9d917ce51011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b28951e7e8b67d812d8ec867735b3f37548bbdd4e2735a8bb4e9d917ce51011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b28951e7e8b67d812d8ec867735b3f37548bbdd4e2735a8bb4e9d917ce51011", kill_on_drop: false }`
[INFO] [stdout] 9b28951e7e8b67d812d8ec867735b3f37548bbdd4e2735a8bb4e9d917ce51011
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88c4f8d3ee9b30e09e4797bda5a860f00a3725318d58c95fd451b6d644fc6db2
[INFO] running `Command { std: "docker" "start" "-a" "88c4f8d3ee9b30e09e4797bda5a860f00a3725318d58c95fd451b6d644fc6db2", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.2.1
[INFO] [stderr]     Checking buffertk v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking sig_fig_histogram v0.6.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking getopts v0.2.23
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:429:40
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<P> {
[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] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<'_, P> {
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling derive_util v0.5.0
[INFO] [stderr]    Compiling arrrg_derive v0.8.0
[INFO] [stderr]     Checking arrrg v0.8.0
[INFO] [stderr]     Checking guacamole v0.14.0
[INFO] [stderr]     Checking statslicer v0.9.0
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:429:40
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<P> {
[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] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<'_, P> {
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.83s
[INFO] running `Command { std: "docker" "inspect" "88c4f8d3ee9b30e09e4797bda5a860f00a3725318d58c95fd451b6d644fc6db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c4f8d3ee9b30e09e4797bda5a860f00a3725318d58c95fd451b6d644fc6db2", kill_on_drop: false }`
[INFO] [stdout] 88c4f8d3ee9b30e09e4797bda5a860f00a3725318d58c95fd451b6d644fc6db2