[INFO] cloning repository https://github.com/adi-g15/leetcode-practice-queue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adi-g15/leetcode-practice-queue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadi-g15%2Fleetcode-practice-queue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadi-g15%2Fleetcode-practice-queue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2af02a664093f8e799ba3b44af48ff7af55cfbb
[INFO] checking adi-g15/leetcode-practice-queue against try#fc545c6b951a304df08b327c158f92678582f435 for pr-140557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadi-g15%2Fleetcode-practice-queue" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adi-g15/leetcode-practice-queue on toolchain fc545c6b951a304df08b327c158f92678582f435
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adi-g15/leetcode-practice-queue
[INFO] finished tweaking git repo https://github.com/adi-g15/leetcode-practice-queue
[INFO] tweaked toml for git repo https://github.com/adi-g15/leetcode-practice-queue written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/adi-g15/leetcode-practice-queue already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wild v2.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87677ae1821c01a5eac5be70fcafe394b41e6a11a4fb4981731e973adae0ebbd
[INFO] running `Command { std: "docker" "start" "-a" "87677ae1821c01a5eac5be70fcafe394b41e6a11a4fb4981731e973adae0ebbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87677ae1821c01a5eac5be70fcafe394b41e6a11a4fb4981731e973adae0ebbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87677ae1821c01a5eac5be70fcafe394b41e6a11a4fb4981731e973adae0ebbd", kill_on_drop: false }`
[INFO] [stdout] 87677ae1821c01a5eac5be70fcafe394b41e6a11a4fb4981731e973adae0ebbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f61ecdf54dd5a0c64095887a34e6d1ee6816bebd40d7e1480d9a22107638537d
[INFO] running `Command { std: "docker" "start" "-a" "f61ecdf54dd5a0c64095887a34e6d1ee6816bebd40d7e1480d9a22107638537d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]     Checking wild v2.1.0
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking xdg v2.4.1
[INFO] [stderr]     Checking leetcode-practice-queue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/lib.rs:71:19
[INFO] [stdout]    |
[INFO] [stdout] 71 |         self.file.unlock()?;
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `unlock(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] help: add `#![feature(file_lock)]` to the crate attributes to enable `File::unlock`
[INFO] [stdout]    |
[INFO] [stdout] 1  + #![feature(file_lock)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/lib.rs:71:19
[INFO] [stdout]    |
[INFO] [stdout] 71 |         self.file.unlock()?;
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `unlock(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] help: add `#![feature(file_lock)]` to the crate attributes to enable `File::unlock`
[INFO] [stdout]    |
[INFO] [stdout] 1  + #![feature(file_lock)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "f61ecdf54dd5a0c64095887a34e6d1ee6816bebd40d7e1480d9a22107638537d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f61ecdf54dd5a0c64095887a34e6d1ee6816bebd40d7e1480d9a22107638537d", kill_on_drop: false }`
[INFO] [stdout] f61ecdf54dd5a0c64095887a34e6d1ee6816bebd40d7e1480d9a22107638537d