[INFO] fetching crate stackbox 0.1.2...
[INFO] checking stackbox-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate stackbox 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate stackbox 0.1.2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate stackbox 0.1.2
[INFO] finished tweaking crates.io crate stackbox 0.1.2
[INFO] tweaked toml for crates.io crate stackbox 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded with_locals v0.3.2
[INFO] [stderr]   Downloaded func_wrap v0.1.3
[INFO] [stderr]   Downloaded with_locals-proc_macros v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdac20280f17ed70e9f5be0973f03c5a5cdddea96ab90ed7bfce30d3950bc9ac
[INFO] running `Command { std: "docker" "start" "-a" "cdac20280f17ed70e9f5be0973f03c5a5cdddea96ab90ed7bfce30d3950bc9ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdac20280f17ed70e9f5be0973f03c5a5cdddea96ab90ed7bfce30d3950bc9ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdac20280f17ed70e9f5be0973f03c5a5cdddea96ab90ed7bfce30d3950bc9ac", kill_on_drop: false }`
[INFO] [stdout] cdac20280f17ed70e9f5be0973f03c5a5cdddea96ab90ed7bfce30d3950bc9ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb646e39e268ef3ae6a1f49946af0e271c8d587b5fa05b0f3bea9be07975e52
[INFO] running `Command { std: "docker" "start" "-a" "adb646e39e268ef3ae6a1f49946af0e271c8d587b5fa05b0f3bea9be07975e52", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking stackbox v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `slice::iter`
[INFO] [stdout]  --> src/stackbox/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use slice::iter;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling func_wrap v0.1.3
[INFO] [stderr]    Compiling with_locals-proc_macros v0.3.2
[INFO] [stderr]     Checking with_locals v0.3.2
[INFO] [stdout] warning: the item `Box` is imported redundantly
[INFO] [stdout]   --> src/ptr.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     use ::alloc::boxed::Box;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Box` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `slice::iter`
[INFO] [stdout]  --> src/stackbox/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use slice::iter;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/dyn_traits/mod.rs:122:37
[INFO] [stdout]     |
[INFO] [stdout] 122 |         stackbox!(let f = |_: &str| drop(not_send));
[INFO] [stdout]     |                                     ^^^^^--------^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          argument has type `i32`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.56s
[INFO] running `Command { std: "docker" "inspect" "adb646e39e268ef3ae6a1f49946af0e271c8d587b5fa05b0f3bea9be07975e52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb646e39e268ef3ae6a1f49946af0e271c8d587b5fa05b0f3bea9be07975e52", kill_on_drop: false }`
[INFO] [stdout] adb646e39e268ef3ae6a1f49946af0e271c8d587b5fa05b0f3bea9be07975e52
[INFO] checking stackbox-0.1.2 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate stackbox 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate stackbox 0.1.2 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate stackbox 0.1.2
[INFO] finished tweaking crates.io crate stackbox 0.1.2
[INFO] tweaked toml for crates.io crate stackbox 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afc2f57255dd159b0fe3321b8293a6ba42accc83b92500661e38cd19101687f6
[INFO] running `Command { std: "docker" "start" "-a" "afc2f57255dd159b0fe3321b8293a6ba42accc83b92500661e38cd19101687f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afc2f57255dd159b0fe3321b8293a6ba42accc83b92500661e38cd19101687f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc2f57255dd159b0fe3321b8293a6ba42accc83b92500661e38cd19101687f6", kill_on_drop: false }`
[INFO] [stdout] afc2f57255dd159b0fe3321b8293a6ba42accc83b92500661e38cd19101687f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 638264c69c38588ac87d91481925d913b4ab3de0a78be20d39fb473f75065a2e
[INFO] running `Command { std: "docker" "start" "-a" "638264c69c38588ac87d91481925d913b4ab3de0a78be20d39fb473f75065a2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking stackbox v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `slice::iter`
[INFO] [stdout]  --> src/stackbox/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use slice::iter;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling func_wrap v0.1.3
[INFO] [stderr]    Compiling with_locals-proc_macros v0.3.2
[INFO] [stderr]     Checking with_locals v0.3.2
[INFO] [stdout] warning: the item `Box` is imported redundantly
[INFO] [stdout]   --> src/ptr.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     use ::alloc::boxed::Box;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Box` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `slice::iter`
[INFO] [stdout]  --> src/stackbox/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use slice::iter;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/dyn_traits/mod.rs:122:37
[INFO] [stdout]     |
[INFO] [stdout] 122 |         stackbox!(let f = |_: &str| drop(not_send));
[INFO] [stdout]     |                                     ^^^^^--------^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          argument has type `i32`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.82s
[INFO] running `Command { std: "docker" "inspect" "638264c69c38588ac87d91481925d913b4ab3de0a78be20d39fb473f75065a2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "638264c69c38588ac87d91481925d913b4ab3de0a78be20d39fb473f75065a2e", kill_on_drop: false }`
[INFO] [stdout] 638264c69c38588ac87d91481925d913b4ab3de0a78be20d39fb473f75065a2e