[INFO] cloning repository https://github.com/holtgrewe/rust-microbench-chrom-maps
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/holtgrewe/rust-microbench-chrom-maps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholtgrewe%2Frust-microbench-chrom-maps", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholtgrewe%2Frust-microbench-chrom-maps'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be35819b741b870e82a73ae26c24d39eb5bcb320
[INFO] testing holtgrewe/rust-microbench-chrom-maps against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholtgrewe%2Frust-microbench-chrom-maps" "/workspace/builds/worker-62/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-62/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/holtgrewe/rust-microbench-chrom-maps on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/holtgrewe/rust-microbench-chrom-maps
[INFO] finished tweaking git repo https://github.com/holtgrewe/rust-microbench-chrom-maps
[INFO] tweaked toml for git repo https://github.com/holtgrewe/rust-microbench-chrom-maps written to /workspace/builds/worker-62/source/Cargo.toml
[INFO] crate git repo https://github.com/holtgrewe/rust-microbench-chrom-maps already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 546d7899abcd6960e6942f0bd459713a097b5425606a82499232711e29dfc7b2
[INFO] running `Command { std: "docker" "start" "-a" "546d7899abcd6960e6942f0bd459713a097b5425606a82499232711e29dfc7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "546d7899abcd6960e6942f0bd459713a097b5425606a82499232711e29dfc7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "546d7899abcd6960e6942f0bd459713a097b5425606a82499232711e29dfc7b2", kill_on_drop: false }`
[INFO] [stdout] 546d7899abcd6960e6942f0bd459713a097b5425606a82499232711e29dfc7b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b10f558a014b07da19562960e62022a7da969170ac8b8d62bb76c358f0a59601
[INFO] running `Command { std: "docker" "start" "-a" "b10f558a014b07da19562960e62022a7da969170ac8b8d62bb76c358f0a59601", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling linear-map v1.2.0
[INFO] [stderr]    Compiling hashbrown v0.3.1
[INFO] [stderr]    Compiling rust-microbench-chrom-maps v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hashbrown`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use hashbrown;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linear_map`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use linear_map;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `REPETITIONS`
[INFO] [stdout]   --> src/main.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | static REPETITIONS: usize = 1000;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `NAMES`
[INFO] [stdout]    --> src/main.rs:13:1
[INFO] [stdout]     |
[INFO] [stdout] 13  | / static NAMES: &[&str] = &[
[INFO] [stdout] 14  | |     "1",
[INFO] [stdout] 15  | |     "2",
[INFO] [stdout] 16  | |     "3",
[INFO] [stdout] ...   |
[INFO] [stdout] 99  | |     "hs37d5",
[INFO] [stdout] 100 | | ];
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `SHORT_NAMES`
[INFO] [stdout]    --> src/main.rs:102:1
[INFO] [stdout]     |
[INFO] [stdout] 102 | / static SHORT_NAMES: &[&str] = &[
[INFO] [stdout] 103 | |     "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17",
[INFO] [stdout] 104 | |     "18", "19", "20", "21", "22", "X", "Y", "MT", "1", "2", "3", "4", "5", "6", "7", "8", "9",
[INFO] [stdout] 105 | |     "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "X", "Y", "MT",
[INFO] [stdout] ...   |
[INFO] [stdout] 108 | |     "10", "11",
[INFO] [stdout] 109 | | ];
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-microbench-chrom-maps` due to 2 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b10f558a014b07da19562960e62022a7da969170ac8b8d62bb76c358f0a59601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b10f558a014b07da19562960e62022a7da969170ac8b8d62bb76c358f0a59601", kill_on_drop: false }`
[INFO] [stdout] b10f558a014b07da19562960e62022a7da969170ac8b8d62bb76c358f0a59601