[INFO] cloning repository https://github.com/ian-h-chamberlain/borrowck_examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ian-h-chamberlain/borrowck_examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-h-chamberlain%2Fborrowck_examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-h-chamberlain%2Fborrowck_examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3c974e3a8d2cc0852e9a9f3c04bbf9d21b8e11ac [INFO] checking ian-h-chamberlain/borrowck_examples against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-h-chamberlain%2Fborrowck_examples" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ian-h-chamberlain/borrowck_examples on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ian-h-chamberlain/borrowck_examples [INFO] finished tweaking git repo https://github.com/ian-h-chamberlain/borrowck_examples [INFO] tweaked toml for git repo https://github.com/ian-h-chamberlain/borrowck_examples written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ian-h-chamberlain/borrowck_examples 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2eb32fd8339308e39eeb11e0c6504c24db2cf5e2139e6990292022924ec0782c [INFO] running `Command { std: "docker" "start" "-a" "2eb32fd8339308e39eeb11e0c6504c24db2cf5e2139e6990292022924ec0782c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2eb32fd8339308e39eeb11e0c6504c24db2cf5e2139e6990292022924ec0782c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2eb32fd8339308e39eeb11e0c6504c24db2cf5e2139e6990292022924ec0782c", kill_on_drop: false }` [INFO] [stdout] 2eb32fd8339308e39eeb11e0c6504c24db2cf5e2139e6990292022924ec0782c [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bb880010149437ab97b346978ee8e2eb49570694bbd31463ab960a863f38db3e [INFO] running `Command { std: "docker" "start" "-a" "bb880010149437ab97b346978ee8e2eb49570694bbd31463ab960a863f38db3e", kill_on_drop: false }` [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking borrowck_lightning_talk v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0499]: cannot borrow `foo` as mutable more than once at a time [INFO] [stdout] --> src/borrow.rs:10:19 [INFO] [stdout] | [INFO] [stdout] 6 | let bar = &mut foo; [INFO] [stdout] | -------- first mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 10 | let baz = &mut foo; [INFO] [stdout] | ^^^^^^^^ second mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 15 | *bar += 1; [INFO] [stdout] | --------- first borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0499]: cannot borrow `foo` as mutable more than once at a time [INFO] [stdout] --> src/borrow.rs:10:19 [INFO] [stdout] | [INFO] [stdout] 6 | let bar = &mut foo; [INFO] [stdout] | -------- first mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 10 | let baz = &mut foo; [INFO] [stdout] | ^^^^^^^^ second mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 15 | *bar += 1; [INFO] [stdout] | --------- first borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `my_string` as immutable because it is also borrowed as mutable [INFO] [stdout] --> src/borrow.rs:26:16 [INFO] [stdout] | [INFO] [stdout] 23 | let ref1 = &mut my_string; [INFO] [stdout] | -------------- mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 26 | let ref2 = &my_string; [INFO] [stdout] | ^^^^^^^^^^ immutable borrow occurs here [INFO] [stdout] 27 | [INFO] [stdout] 28 | *ref1 = String::from("foo"); [INFO] [stdout] | ----- mutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `my_string` as immutable because it is also borrowed as mutable [INFO] [stdout] --> src/borrow.rs:26:16 [INFO] [stdout] | [INFO] [stdout] 23 | let ref1 = &mut my_string; [INFO] [stdout] | -------------- mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 26 | let ref2 = &my_string; [INFO] [stdout] | ^^^^^^^^^^ immutable borrow occurs here [INFO] [stdout] 27 | [INFO] [stdout] 28 | *ref1 = String::from("foo"); [INFO] [stdout] | ----- mutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `my_string` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/borrow.rs:40:16 [INFO] [stdout] | [INFO] [stdout] 36 | let ref1 = &my_string; [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 40 | let ref3 = &mut my_string; [INFO] [stdout] | ^^^^^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 44 | println!("Example 3: {}, {}", *ref1, *ref2); [INFO] [stdout] | ----- immutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `my_string` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/borrow.rs:40:16 [INFO] [stdout] | [INFO] [stdout] 36 | let ref1 = &my_string; [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 40 | let ref3 = &mut my_string; [INFO] [stdout] | ^^^^^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 44 | println!("Example 3: {}, {}", *ref1, *ref2); [INFO] [stdout] | ----- immutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0597]: `my_string` does not live long enough [INFO] [stdout] --> src/borrow.rs:53:16 [INFO] [stdout] | [INFO] [stdout] 50 | let mut my_string = String::from("hello"); [INFO] [stdout] | ------------- binding `my_string` declared here [INFO] [stdout] ... [INFO] [stdout] 53 | ref1 = &mut my_string; [INFO] [stdout] | ^^^^^^^^^^^^^^ borrowed value does not live long enough [INFO] [stdout] 54 | } [INFO] [stdout] | - `my_string` dropped here while still borrowed [INFO] [stdout] 55 | [INFO] [stdout] 56 | *ref1 = String::from("my fair lady"); [INFO] [stdout] | ----- borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0597]: `my_string` does not live long enough [INFO] [stdout] --> src/borrow.rs:53:16 [INFO] [stdout] | [INFO] [stdout] 50 | let mut my_string = String::from("hello"); [INFO] [stdout] | ------------- binding `my_string` declared here [INFO] [stdout] ... [INFO] [stdout] 53 | ref1 = &mut my_string; [INFO] [stdout] | ^^^^^^^^^^^^^^ borrowed value does not live long enough [INFO] [stdout] 54 | } [INFO] [stdout] | - `my_string` dropped here while still borrowed [INFO] [stdout] 55 | [INFO] [stdout] 56 | *ref1 = String::from("my fair lady"); [INFO] [stdout] | ----- borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0499, E0502, E0597. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0499`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0499, E0502, E0597. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0499`. [INFO] [stdout] [INFO] [stderr] error: could not compile `borrowck_lightning_talk` (bin "borrowck_lightning_talk" test) due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `borrowck_lightning_talk` (bin "borrowck_lightning_talk") due to 5 previous errors [INFO] running `Command { std: "docker" "inspect" "bb880010149437ab97b346978ee8e2eb49570694bbd31463ab960a863f38db3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb880010149437ab97b346978ee8e2eb49570694bbd31463ab960a863f38db3e", kill_on_drop: false }` [INFO] [stdout] bb880010149437ab97b346978ee8e2eb49570694bbd31463ab960a863f38db3e [INFO] checking ian-h-chamberlain/borrowck_examples against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-h-chamberlain%2Fborrowck_examples" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ian-h-chamberlain/borrowck_examples on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ian-h-chamberlain/borrowck_examples [INFO] finished tweaking git repo https://github.com/ian-h-chamberlain/borrowck_examples [INFO] tweaked toml for git repo https://github.com/ian-h-chamberlain/borrowck_examples written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ian-h-chamberlain/borrowck_examples 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 24233db790754d8f55c20d34fd158e08a9377b09b79ab962dfbf56a7a25348be [INFO] running `Command { std: "docker" "start" "-a" "24233db790754d8f55c20d34fd158e08a9377b09b79ab962dfbf56a7a25348be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "24233db790754d8f55c20d34fd158e08a9377b09b79ab962dfbf56a7a25348be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "24233db790754d8f55c20d34fd158e08a9377b09b79ab962dfbf56a7a25348be", kill_on_drop: false }` [INFO] [stdout] 24233db790754d8f55c20d34fd158e08a9377b09b79ab962dfbf56a7a25348be [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cdccb817f4c8247f68bae24055109005dc8e59c6e52156e09139fef7b2676b46 [INFO] running `Command { std: "docker" "start" "-a" "cdccb817f4c8247f68bae24055109005dc8e59c6e52156e09139fef7b2676b46", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] skipping non-2021 edition `2018` [INFO] running `Command { std: "docker" "inspect" "cdccb817f4c8247f68bae24055109005dc8e59c6e52156e09139fef7b2676b46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cdccb817f4c8247f68bae24055109005dc8e59c6e52156e09139fef7b2676b46", kill_on_drop: false }` [INFO] [stdout] cdccb817f4c8247f68bae24055109005dc8e59c6e52156e09139fef7b2676b46