[INFO] cloning repository https://github.com/AshyEarl/leecode-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AshyEarl/leecode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAshyEarl%2Fleecode-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAshyEarl%2Fleecode-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6c72e320fc4de53969fd64633c520277bc95cc0
[INFO] testing AshyEarl/leecode-rust 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%2FAshyEarl%2Fleecode-rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AshyEarl/leecode-rust 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/AshyEarl/leecode-rust
[INFO] finished tweaking git repo https://github.com/AshyEarl/leecode-rust
[INFO] tweaked toml for git repo https://github.com/AshyEarl/leecode-rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/AshyEarl/leecode-rust 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] dc4da9905e7b5e047ccb38f10175320f3470911af3193feacc22d2e7b047cac7
[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" "dc4da9905e7b5e047ccb38f10175320f3470911af3193feacc22d2e7b047cac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc4da9905e7b5e047ccb38f10175320f3470911af3193feacc22d2e7b047cac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc4da9905e7b5e047ccb38f10175320f3470911af3193feacc22d2e7b047cac7", kill_on_drop: false }`
[INFO] [stdout] dc4da9905e7b5e047ccb38f10175320f3470911af3193feacc22d2e7b047cac7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 29d65ce628cb0b3e351cff138c5b1ba3ab7049d7de2f9abb50428a9715e5bb63
[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" "29d65ce628cb0b3e351cff138c5b1ba3ab7049d7de2f9abb50428a9715e5bb63", kill_on_drop: false }`
[INFO] [stderr]    Compiling leecode-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DerefMut`, `Deref`
[INFO] [stdout]  --> src/_0002_add_two_numbers.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/_0003_longest_substring_without_repeating_characters.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "29d65ce628cb0b3e351cff138c5b1ba3ab7049d7de2f9abb50428a9715e5bb63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29d65ce628cb0b3e351cff138c5b1ba3ab7049d7de2f9abb50428a9715e5bb63", kill_on_drop: false }`
[INFO] [stdout] 29d65ce628cb0b3e351cff138c5b1ba3ab7049d7de2f9abb50428a9715e5bb63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9595c5bec54fda2606db75d0c908fccd2273c22562291ba56cee1369adaa416
[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" "d9595c5bec54fda2606db75d0c908fccd2273c22562291ba56cee1369adaa416", kill_on_drop: false }`
[INFO] [stderr]    Compiling leecode-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DerefMut`, `Deref`
[INFO] [stdout]  --> src/_0002_add_two_numbers.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/_0003_longest_substring_without_repeating_characters.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "d9595c5bec54fda2606db75d0c908fccd2273c22562291ba56cee1369adaa416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9595c5bec54fda2606db75d0c908fccd2273c22562291ba56cee1369adaa416", kill_on_drop: false }`
[INFO] [stdout] d9595c5bec54fda2606db75d0c908fccd2273c22562291ba56cee1369adaa416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "test" "--frozen", 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] 1341a25d87618666a6bb903d634ef5fd7d113ecd6f591a6fc93c265b1155bc73
[INFO] running `Command { std: "docker" "start" "-a" "1341a25d87618666a6bb903d634ef5fd7d113ecd6f591a6fc93c265b1155bc73", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unused imports: `DerefMut`, `Deref`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/_0002_add_two_numbers.rs:3:16
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 3 | use std::ops::{Deref, DerefMut};
[INFO] [stdout] 
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]   --> src/_0003_longest_substring_without_repeating_characters.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::collections::HashMap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `leecode-rust` (bin "leecode-rust" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.65s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leecode_rust-775e1c09656d612d)
[INFO] running `Command { std: "docker" "inspect" "1341a25d87618666a6bb903d634ef5fd7d113ecd6f591a6fc93c265b1155bc73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1341a25d87618666a6bb903d634ef5fd7d113ecd6f591a6fc93c265b1155bc73", kill_on_drop: false }`
[INFO] [stdout] 1341a25d87618666a6bb903d634ef5fd7d113ecd6f591a6fc93c265b1155bc73