[INFO] fetching crate relp-num 0.0.4...
[INFO] checking relp-num-0.0.4 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate relp-num 0.0.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate relp-num 0.0.4 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate relp-num 0.0.4
[INFO] finished tweaking crates.io crate relp-num 0.0.4
[INFO] tweaked toml for crates.io crate relp-num 0.0.4 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13ea38e6bcf2ad0578b9261d3e429a29ba0d80d06a4203d8a5ed7b0362fad53b
[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" "13ea38e6bcf2ad0578b9261d3e429a29ba0d80d06a4203d8a5ed7b0362fad53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13ea38e6bcf2ad0578b9261d3e429a29ba0d80d06a4203d8a5ed7b0362fad53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13ea38e6bcf2ad0578b9261d3e429a29ba0d80d06a4203d8a5ed7b0362fad53b", kill_on_drop: false }`
[INFO] [stdout] 13ea38e6bcf2ad0578b9261d3e429a29ba0d80d06a4203d8a5ed7b0362fad53b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 0774a4664c722c95be80dfd20611610c714aeb044afcfc84fb7563aa8b9283e4
[INFO] running `Command { std: "docker" "start" "-a" "0774a4664c722c95be80dfd20611610c714aeb044afcfc84fb7563aa8b9283e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking gcd v2.0.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling relp-num v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stdout] warning: function is never used: `add_n`
[INFO] [stdout]    --> src/rational/big/ops/building_blocks.rs:234:15
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub unsafe fn add_n(target: &mut [usize], left: &[usize], right: &[usize], size: i32) -> usize {
[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] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: unused import: `criterion_main`
[INFO] [stdout]  --> benches/criterion_benchmarks/primes.rs:1:56
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{black_box, Criterion, criterion_group, criterion_main};
[INFO] [stdout]   |                                                        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_n`
[INFO] [stdout]    --> src/rational/big/ops/building_blocks.rs:234:15
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub unsafe fn add_n(target: &mut [usize], left: &[usize], right: &[usize], size: i32) -> usize {
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.84s
[INFO] running `Command { std: "docker" "inspect" "0774a4664c722c95be80dfd20611610c714aeb044afcfc84fb7563aa8b9283e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0774a4664c722c95be80dfd20611610c714aeb044afcfc84fb7563aa8b9283e4", kill_on_drop: false }`
[INFO] [stdout] 0774a4664c722c95be80dfd20611610c714aeb044afcfc84fb7563aa8b9283e4