[INFO] fetching crate Project2 0.1.3...
[INFO] checking Project2-0.1.3 against beta for pr-78714
[INFO] extracting crate Project2 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate Project2 0.1.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate Project2 0.1.3
[INFO] finished tweaking crates.io crate Project2 0.1.3
[INFO] tweaked toml for crates.io crate Project2 0.1.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate Project2 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 633afb6304dbfed15ccab2446b73b6e4f2160f106f04733a68e38598a719fd65
[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" "633afb6304dbfed15ccab2446b73b6e4f2160f106f04733a68e38598a719fd65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "633afb6304dbfed15ccab2446b73b6e4f2160f106f04733a68e38598a719fd65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "633afb6304dbfed15ccab2446b73b6e4f2160f106f04733a68e38598a719fd65", kill_on_drop: false }`
[INFO] [stdout] 633afb6304dbfed15ccab2446b73b6e4f2160f106f04733a68e38598a719fd65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5bf1d01da8d41c2391b529e7ce60920428ec37b29af0a9e7e16bd2d42643f93
[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" "f5bf1d01da8d41c2391b529e7ce60920428ec37b29af0a9e7e16bd2d42643f93", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking regex-syntax v0.6.15
[INFO] [stderr]     Checking oorandom v11.1.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking Project2 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stdout] warning: unused import: `black_box`
[INFO] [stdout]  --> benches/my_benchmark.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{black_box, criterion_group, criterion_main, Criterion};
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Binary` should have a snake case name
[INFO] [stdout]  --> benches/my_benchmark.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn Binary(val : u32){
[INFO] [stdout]   |    ^^^^^^ help: convert the identifier to snake case: `binary`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `RBTree` should have a snake case name
[INFO] [stdout]   --> benches/my_benchmark.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn RBTree(val : u32) {
[INFO] [stdout]    |    ^^^^^^ help: convert the identifier to snake case: `rbtree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `AVLTree` should have a snake case name
[INFO] [stdout]   --> benches/my_benchmark.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn AVLTree(val : u32) {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `avltree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.03s
[INFO] running `Command { std: "docker" "inspect" "f5bf1d01da8d41c2391b529e7ce60920428ec37b29af0a9e7e16bd2d42643f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5bf1d01da8d41c2391b529e7ce60920428ec37b29af0a9e7e16bd2d42643f93", kill_on_drop: false }`
[INFO] [stdout] f5bf1d01da8d41c2391b529e7ce60920428ec37b29af0a9e7e16bd2d42643f93