[INFO] fetching crate gee 0.3.0...
[INFO] checking gee-0.3.0 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate gee 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate gee 0.3.0 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gee 0.3.0
[INFO] finished tweaking crates.io crate gee 0.3.0
[INFO] tweaked toml for crates.io crate gee 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a709c1907c347b48d725e22d31fbbf1b8fa1f37e3a55243bb41cacfcbcc6c5a
[INFO] running `Command { std: "docker" "start" "-a" "9a709c1907c347b48d725e22d31fbbf1b8fa1f37e3a55243bb41cacfcbcc6c5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a709c1907c347b48d725e22d31fbbf1b8fa1f37e3a55243bb41cacfcbcc6c5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a709c1907c347b48d725e22d31fbbf1b8fa1f37e3a55243bb41cacfcbcc6c5a", kill_on_drop: false }`
[INFO] [stdout] 9a709c1907c347b48d725e22d31fbbf1b8fa1f37e3a55243bb41cacfcbcc6c5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc7d936f072922c3aaa31ac1e2f8b0a98b628029653c5e7a6b765f8e8d6edbf2
[INFO] running `Command { std: "docker" "start" "-a" "bc7d936f072922c3aaa31ac1e2f8b0a98b628029653c5e7a6b765f8e8d6edbf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking en v0.1.5
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]     Checking gee v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0515]: cannot return value referencing function parameter `x`
[INFO] [stdout]    --> src/rect.rs:578:27
[INFO] [stdout]     |
[INFO] [stdout] 578 |             .map(move |x| x.width_slices_with_margin(num_items.width(), margin_x))
[INFO] [stdout]     |                           -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           returns a value referencing data owned by the current function
[INFO] [stdout]     |                           `x` is borrowed here
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `.collect()` to allocate the iterator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing function parameter `x`
[INFO] [stdout]    --> src/rect.rs:578:27
[INFO] [stdout]     |
[INFO] [stdout] 578 |             .map(move |x| x.width_slices_with_margin(num_items.width(), margin_x))
[INFO] [stdout]     |                           -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           returns a value referencing data owned by the current function
[INFO] [stdout]     |                           `x` is borrowed here
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `.collect()` to allocate the iterator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gee` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gee` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bc7d936f072922c3aaa31ac1e2f8b0a98b628029653c5e7a6b765f8e8d6edbf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc7d936f072922c3aaa31ac1e2f8b0a98b628029653c5e7a6b765f8e8d6edbf2", kill_on_drop: false }`
[INFO] [stdout] bc7d936f072922c3aaa31ac1e2f8b0a98b628029653c5e7a6b765f8e8d6edbf2