[INFO] fetching crate leetcode_for_rust 0.1.37...
[INFO] testing leetcode_for_rust-0.1.37 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate leetcode_for_rust 0.1.37 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate leetcode_for_rust 0.1.37 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 crates.io crate leetcode_for_rust 0.1.37
[INFO] finished tweaking crates.io crate leetcode_for_rust 0.1.37
[INFO] tweaked toml for crates.io crate leetcode_for_rust 0.1.37 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 3f1170b002d9c3c94bd5e4b9094c987e4648e061d7f97b4efca075b548b4e6b9
[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" "3f1170b002d9c3c94bd5e4b9094c987e4648e061d7f97b4efca075b548b4e6b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f1170b002d9c3c94bd5e4b9094c987e4648e061d7f97b4efca075b548b4e6b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f1170b002d9c3c94bd5e4b9094c987e4648e061d7f97b4efca075b548b4e6b9", kill_on_drop: false }`
[INFO] [stdout] 3f1170b002d9c3c94bd5e4b9094c987e4648e061d7f97b4efca075b548b4e6b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 587142dd0db1ef21bdfab7275aeefd20fdf87c4b2cc28cf54b918411fe902fb3
[INFO] running `Command { std: "docker" "start" "-a" "587142dd0db1ef21bdfab7275aeefd20fdf87c4b2cc28cf54b918411fe902fb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode_for_rust v0.1.37 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/cd0224_basic_calculator/mod.rs:88:16
[INFO] [stdout]    |
[INFO] [stdout] 88 |             '0'...'9' => {
[INFO] [stdout]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `Command { std: "docker" "inspect" "587142dd0db1ef21bdfab7275aeefd20fdf87c4b2cc28cf54b918411fe902fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "587142dd0db1ef21bdfab7275aeefd20fdf87c4b2cc28cf54b918411fe902fb3", kill_on_drop: false }`
[INFO] [stdout] 587142dd0db1ef21bdfab7275aeefd20fdf87c4b2cc28cf54b918411fe902fb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f69528e2f733592c44c03decbcbfe73783e04ef61f555244a98467ff07f9c7a3
[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" "f69528e2f733592c44c03decbcbfe73783e04ef61f555244a98467ff07f9c7a3", kill_on_drop: false }`
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/cd0224_basic_calculator/mod.rs:88:16
[INFO] [stdout]    |
[INFO] [stdout] 88 |             '0'...'9' => {
[INFO] [stdout]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling leetcode_for_rust v0.1.37 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/cd0224_basic_calculator/mod.rs:88:16
[INFO] [stdout]    |
[INFO] [stdout] 88 |             '0'...'9' => {
[INFO] [stdout]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "f69528e2f733592c44c03decbcbfe73783e04ef61f555244a98467ff07f9c7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f69528e2f733592c44c03decbcbfe73783e04ef61f555244a98467ff07f9c7a3", kill_on_drop: false }`
[INFO] [stdout] f69528e2f733592c44c03decbcbfe73783e04ef61f555244a98467ff07f9c7a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 0a0d7fe90126228463cd5ee15c2d48a3913404eb009acead6f33d5532199bdf2
[INFO] running `Command { std: "docker" "start" "-a" "0a0d7fe90126228463cd5ee15c2d48a3913404eb009acead6f33d5532199bdf2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/cd0224_basic_calculator/mod.rs:88:16
[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] 88 |             '0'...'9' => {
[INFO] [stdout] 
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `leetcode_for_rust` (lib) generated 1 warning
[INFO] [stderr] warning: `leetcode_for_rust` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leetcode_for_rust-7af47f874dbba2db)
[INFO] [stderr]    Doc-tests leetcode_for_rust
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> /opt/rustwide/workdir/src/cd0224_basic_calculator/mod.rs:88:16
[INFO] [stderr]    |
[INFO] [stderr] 88 |             '0'...'9' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type rlib --crate-type staticlib --crate-name leetcode_for_rust --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern leetcode_for_rust=/opt/rustwide/target/debug/deps/libleetcode_for_rust-120cdc4b34ffb3da.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "0a0d7fe90126228463cd5ee15c2d48a3913404eb009acead6f33d5532199bdf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a0d7fe90126228463cd5ee15c2d48a3913404eb009acead6f33d5532199bdf2", kill_on_drop: false }`
[INFO] [stdout] 0a0d7fe90126228463cd5ee15c2d48a3913404eb009acead6f33d5532199bdf2