[INFO] fetching crate mockall_derive 0.11.4...
[INFO] checking mockall_derive-0.11.4 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate mockall_derive 0.11.4 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate mockall_derive 0.11.4 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 mockall_derive 0.11.4
[INFO] finished tweaking crates.io crate mockall_derive 0.11.4
[INFO] tweaked toml for crates.io crate mockall_derive 0.11.4 written to /workspace/builds/worker-1-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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 95c2feead27ba32ed8330de4a38bf7d2c8dd34269c7f054ad0e3037941c8bb3b
[INFO] running `Command { std: "docker" "start" "-a" "95c2feead27ba32ed8330de4a38bf7d2c8dd34269c7f054ad0e3037941c8bb3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95c2feead27ba32ed8330de4a38bf7d2c8dd34269c7f054ad0e3037941c8bb3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95c2feead27ba32ed8330de4a38bf7d2c8dd34269c7f054ad0e3037941c8bb3b", kill_on_drop: false }`
[INFO] [stdout] 95c2feead27ba32ed8330de4a38bf7d2c8dd34269c7f054ad0e3037941c8bb3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 819f4cbbb6d5d04c8619954053fe2b1e7fa9e348a3ad3ddb9be18620a0a27730
[INFO] running `Command { std: "docker" "start" "-a" "819f4cbbb6d5d04c8619954053fe2b1e7fa9e348a3ad3ddb9be18620a0a27730", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking proc-macro2 v1.0.67
[INFO] [stderr]     Checking quote v1.0.33
[INFO] [stderr]     Checking mockall_derive v0.11.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0515]: cannot return value referencing local variable `modname`
[INFO] [stdout]    --> src/mock_item_struct.rs:312:17
[INFO] [stdout]     |
[INFO] [stdout] 312 |                 trait_.trait_impl(&modname)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^--------^
[INFO] [stdout]     |                 |                 |
[INFO] [stdout]     |                 |                 `modname` is borrowed here
[INFO] [stdout]     |                 returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing local variable `modname`
[INFO] [stdout]    --> src/mock_item_struct.rs:312:17
[INFO] [stdout]     |
[INFO] [stdout] 312 |                 trait_.trait_impl(&modname)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^--------^
[INFO] [stdout]     |                 |                 |
[INFO] [stdout]     |                 |                 `modname` is borrowed here
[INFO] [stdout]     |                 returns a value referencing data owned by the current function
[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 `mockall_derive` (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 `mockall_derive` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "819f4cbbb6d5d04c8619954053fe2b1e7fa9e348a3ad3ddb9be18620a0a27730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "819f4cbbb6d5d04c8619954053fe2b1e7fa9e348a3ad3ddb9be18620a0a27730", kill_on_drop: false }`
[INFO] [stdout] 819f4cbbb6d5d04c8619954053fe2b1e7fa9e348a3ad3ddb9be18620a0a27730