[INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 1) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque/objects/info: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 2) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] error: failed to write new configuration file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque/config.lock [INFO] [stderr] fatal: could not set 'core.filemode' to 'true' [WARN] Retrying crate fetch in 3 seconds (attempt 3) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] error: copy-fd: write returned: No space left on device [INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/post-update.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque/hooks/post-update.sample': No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 4) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 5) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 6) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 7) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 8) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 9) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 10) [INFO] cloning repository https://github.com/djmitche/deque [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmitche/deque" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9bc4694d6889503b04eb460adbeef79547a480fe [INFO] checking djmitche/deque against master#32cd9114712a24010b0583624dc52ac302194128 for pr-143717 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmitche%2Fdeque" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/djmitche/deque [INFO] finished tweaking git repo https://github.com/djmitche/deque [INFO] tweaked toml for git repo https://github.com/djmitche/deque written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/djmitche/deque on toolchain 32cd9114712a24010b0583624dc52ac302194128 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/djmitche/deque 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" "+32cd9114712a24010b0583624dc52ac302194128" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded static-rc v0.4.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a423490cdd36fd7be9c2a54d9c245b0b1cad0e57c0c99cdebbeac0c228c114da [INFO] running `Command { std: "docker" "start" "-a" "a423490cdd36fd7be9c2a54d9c245b0b1cad0e57c0c99cdebbeac0c228c114da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a423490cdd36fd7be9c2a54d9c245b0b1cad0e57c0c99cdebbeac0c228c114da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a423490cdd36fd7be9c2a54d9c245b0b1cad0e57c0c99cdebbeac0c228c114da", kill_on_drop: false }` [INFO] [stdout] a423490cdd36fd7be9c2a54d9c245b0b1cad0e57c0c99cdebbeac0c228c114da [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a686230d9cbf154e9d6079f6f4096e237d2b307c3822c43e0b744a31c4db00a [INFO] running `Command { std: "docker" "start" "-a" "9a686230d9cbf154e9d6079f6f4096e237d2b307c3822c43e0b744a31c4db00a", kill_on_drop: false }` [INFO] [stderr] Checking static-rc v0.4.0 [INFO] [stderr] Checking deque v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0597]: `head_link` does not live long enough [INFO] [stdout] --> src/lib.rs:103:52 [INFO] [stdout] | [INFO] [stdout] 97 | let head_link = self.head.take().expect("List.head should be Some(_)"); [INFO] [stdout] | --------- binding `head_link` declared here [INFO] [stdout] ... [INFO] [stdout] 103 | if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] | ------------------^^^^^^^^^^-------------- [INFO] [stdout] | | | [INFO] [stdout] | | borrowed value does not live long enough [INFO] [stdout] | a temporary with access to the borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 125 | } [INFO] [stdout] | - [INFO] [stdout] | | [INFO] [stdout] | `head_link` dropped here while still borrowed [INFO] [stdout] | ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `RefMut<'_, Elt>` [INFO] [stdout] | [INFO] [stdout] = note: the temporary is part of an expression at the end of a block; [INFO] [stdout] consider forcing this temporary to be dropped sooner, before the block's local variables are dropped [INFO] [stdout] help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block [INFO] [stdout] | [INFO] [stdout] 103 ~ let x = if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] 104 | let prev_elt = StaticRc::get_ref(&prev_link); [INFO] [stdout] ... [INFO] [stdout] 123 | None [INFO] [stdout] 124 ~ }; x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0597]: `head_link` does not live long enough [INFO] [stdout] --> src/lib.rs:103:52 [INFO] [stdout] | [INFO] [stdout] 97 | let head_link = self.head.take().expect("List.head should be Some(_)"); [INFO] [stdout] | --------- binding `head_link` declared here [INFO] [stdout] ... [INFO] [stdout] 103 | if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] | ------------------^^^^^^^^^^-------------- [INFO] [stdout] | | | [INFO] [stdout] | | borrowed value does not live long enough [INFO] [stdout] | a temporary with access to the borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 125 | } [INFO] [stdout] | - [INFO] [stdout] | | [INFO] [stdout] | `head_link` dropped here while still borrowed [INFO] [stdout] | ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `RefMut<'_, Elt>` [INFO] [stdout] | [INFO] [stdout] = note: the temporary is part of an expression at the end of a block; [INFO] [stdout] consider forcing this temporary to be dropped sooner, before the block's local variables are dropped [INFO] [stdout] help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block [INFO] [stdout] | [INFO] [stdout] 103 ~ let x = if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] 104 | let prev_elt = StaticRc::get_ref(&prev_link); [INFO] [stdout] ... [INFO] [stdout] 123 | None [INFO] [stdout] 124 ~ }; x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0505]: cannot move out of `head_link` because it is borrowed [INFO] [stdout] --> src/lib.rs:116:68 [INFO] [stdout] | [INFO] [stdout] 97 | let head_link = self.head.take().expect("List.head should be Some(_)"); [INFO] [stdout] | --------- binding `head_link` declared here [INFO] [stdout] ... [INFO] [stdout] 103 | if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] | ------------------------------------------ [INFO] [stdout] | | | [INFO] [stdout] | | borrow of `head_link` occurs here [INFO] [stdout] | a temporary with access to the borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 116 | let full: FullLink = StaticRc::join(prev_next_link, head_link); [INFO] [stdout] | ^^^^^^^^^ move out of `head_link` occurs here [INFO] [stdout] ... [INFO] [stdout] 125 | } [INFO] [stdout] | - ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `RefMut<'_, Elt>` [INFO] [stdout] | [INFO] [stdout] = note: the temporary is part of an expression at the end of a block; [INFO] [stdout] consider forcing this temporary to be dropped sooner, before the block's local variables are dropped [INFO] [stdout] help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block [INFO] [stdout] | [INFO] [stdout] 103 ~ let x = if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] 104 | let prev_elt = StaticRc::get_ref(&prev_link); [INFO] [stdout] ... [INFO] [stdout] 123 | None [INFO] [stdout] 124 ~ }; x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0505]: cannot move out of `head_link` because it is borrowed [INFO] [stdout] --> src/lib.rs:122:30 [INFO] [stdout] | [INFO] [stdout] 97 | let head_link = self.head.take().expect("List.head should be Some(_)"); [INFO] [stdout] | --------- binding `head_link` declared here [INFO] [stdout] ... [INFO] [stdout] 103 | if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] | ------------------------------------------ [INFO] [stdout] | | | [INFO] [stdout] | | borrow of `head_link` occurs here [INFO] [stdout] | a temporary with access to the borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 122 | self.head = Some(head_link); [INFO] [stdout] | ^^^^^^^^^ move out of `head_link` occurs here [INFO] [stdout] ... [INFO] [stdout] 125 | } [INFO] [stdout] | - ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `RefMut<'_, Elt>` [INFO] [stdout] | [INFO] [stdout] = note: the temporary is part of an expression at the end of a block; [INFO] [stdout] consider forcing this temporary to be dropped sooner, before the block's local variables are dropped [INFO] [stdout] help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block [INFO] [stdout] | [INFO] [stdout] 103 ~ let x = if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] 104 | let prev_elt = StaticRc::get_ref(&prev_link); [INFO] [stdout] ... [INFO] [stdout] 123 | None [INFO] [stdout] 124 ~ }; x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0505]: cannot move out of `head_link` because it is borrowed [INFO] [stdout] --> src/lib.rs:116:68 [INFO] [stdout] | [INFO] [stdout] 97 | let head_link = self.head.take().expect("List.head should be Some(_)"); [INFO] [stdout] | --------- binding `head_link` declared here [INFO] [stdout] ... [INFO] [stdout] 103 | if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] | ------------------------------------------ [INFO] [stdout] | | | [INFO] [stdout] | | borrow of `head_link` occurs here [INFO] [stdout] | a temporary with access to the borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 116 | let full: FullLink = StaticRc::join(prev_next_link, head_link); [INFO] [stdout] | ^^^^^^^^^ move out of `head_link` occurs here [INFO] [stdout] ... [INFO] [stdout] 125 | } [INFO] [stdout] | - ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `RefMut<'_, Elt>` [INFO] [stdout] | [INFO] [stdout] = note: the temporary is part of an expression at the end of a block; [INFO] [stdout] consider forcing this temporary to be dropped sooner, before the block's local variables are dropped [INFO] [stdout] help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block [INFO] [stdout] | [INFO] [stdout] 103 ~ let x = if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] 104 | let prev_elt = StaticRc::get_ref(&prev_link); [INFO] [stdout] ... [INFO] [stdout] 123 | None [INFO] [stdout] 124 ~ }; x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0505, E0597. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0505`. [INFO] [stdout] [INFO] [stdout] error[E0505]: cannot move out of `head_link` because it is borrowed [INFO] [stdout] --> src/lib.rs:122:30 [INFO] [stdout] | [INFO] [stdout] 97 | let head_link = self.head.take().expect("List.head should be Some(_)"); [INFO] [stdout] | --------- binding `head_link` declared here [INFO] [stdout] ... [INFO] [stdout] 103 | if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] | ------------------------------------------ [INFO] [stdout] | | | [INFO] [stdout] | | borrow of `head_link` occurs here [INFO] [stdout] | a temporary with access to the borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 122 | self.head = Some(head_link); [INFO] [stdout] | ^^^^^^^^^ move out of `head_link` occurs here [INFO] [stdout] ... [INFO] [stdout] 125 | } [INFO] [stdout] | - ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `RefMut<'_, Elt>` [INFO] [stdout] | [INFO] [stdout] = note: the temporary is part of an expression at the end of a block; [INFO] [stdout] consider forcing this temporary to be dropped sooner, before the block's local variables are dropped [INFO] [stdout] help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block [INFO] [stdout] | [INFO] [stdout] 103 ~ let x = if let Some(prev_link) = StaticRc::get_ref(&head_link).borrow_mut().prev.take() { [INFO] [stdout] 104 | let prev_elt = StaticRc::get_ref(&prev_link); [INFO] [stdout] ... [INFO] [stdout] 123 | None [INFO] [stdout] 124 ~ }; x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0505, E0597. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0505`. [INFO] [stdout] [INFO] [stderr] error: could not compile `deque` (lib test) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `deque` (lib) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "9a686230d9cbf154e9d6079f6f4096e237d2b307c3822c43e0b744a31c4db00a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a686230d9cbf154e9d6079f6f4096e237d2b307c3822c43e0b744a31c4db00a", kill_on_drop: false }` [INFO] [stdout] 9a686230d9cbf154e9d6079f6f4096e237d2b307c3822c43e0b744a31c4db00a