[INFO] fetching crate metrix 0.13.13...
[INFO] checking metrix-0.13.13 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate metrix 0.13.13 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate metrix 0.13.13 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrix 0.13.13
[INFO] finished tweaking crates.io crate metrix 0.13.13
[INFO] tweaked toml for crates.io crate metrix 0.13.13 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate metrix 0.13.13 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93b7c08699b39ea49a50b651b83a4e7910081a37ea834156edf4e48e6e77d86b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "93b7c08699b39ea49a50b651b83a4e7910081a37ea834156edf4e48e6e77d86b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93b7c08699b39ea49a50b651b83a4e7910081a37ea834156edf4e48e6e77d86b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93b7c08699b39ea49a50b651b83a4e7910081a37ea834156edf4e48e6e77d86b", kill_on_drop: false }`
[INFO] [stdout] 93b7c08699b39ea49a50b651b83a4e7910081a37ea834156edf4e48e6e77d86b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b3d05844ce5e7b0a1b9908ce25e2ad4e3f9ef48bb2f114ee7218ac1b074c3a33
[INFO] running `Command { std: "docker" "start" "-a" "b3d05844ce5e7b0a1b9908ce25e2ad4e3f9ef48bb2f114ee7218ac1b074c3a33", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking ordered-float v2.1.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking exponential-decay-histogram v0.1.9
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking metrix v0.13.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `get_at_mut`
[INFO] [stdout]   --> src/instruments/fundamentals/buckets.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_at_mut(&mut self, for_when: Instant) -> Option<&mut T> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `offset`
[INFO] [stdout]   --> src/instruments/fundamentals/clock.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 34 |         pub fn offset(&self) -> Duration {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reference`
[INFO] [stdout]   --> src/instruments/fundamentals/clock.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |         pub fn reference(&self) -> Instant {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_offset`
[INFO] [stdout]   --> src/instruments/fundamentals/clock.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |         pub fn set_offset(&self, offset: Duration) {
[INFO] [stdout]    |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]   --> src/instruments/fundamentals/clock.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |         pub fn reset(&self) {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.69s
[INFO] running `Command { std: "docker" "inspect" "b3d05844ce5e7b0a1b9908ce25e2ad4e3f9ef48bb2f114ee7218ac1b074c3a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3d05844ce5e7b0a1b9908ce25e2ad4e3f9ef48bb2f114ee7218ac1b074c3a33", kill_on_drop: false }`
[INFO] [stdout] b3d05844ce5e7b0a1b9908ce25e2ad4e3f9ef48bb2f114ee7218ac1b074c3a33