[INFO] fetching crate global 0.4.3...
[INFO] checking global-0.4.3 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate global 0.4.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate global 0.4.3
[INFO] finished tweaking crates.io crate global 0.4.3
[INFO] tweaked toml for crates.io crate global 0.4.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate global 0.4.3 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 83 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.6.0)
[INFO] [stderr]       Adding parking_lot v0.9.0 (available: v0.12.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10f076cb4725187ab432809ca06d7ad1eeddb9064d1480b8b2880bc085a07e81
[INFO] running `Command { std: "docker" "start" "-a" "10f076cb4725187ab432809ca06d7ad1eeddb9064d1480b8b2880bc085a07e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10f076cb4725187ab432809ca06d7ad1eeddb9064d1480b8b2880bc085a07e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f076cb4725187ab432809ca06d7ad1eeddb9064d1480b8b2880bc085a07e81", kill_on_drop: false }`
[INFO] [stdout] 10f076cb4725187ab432809ca06d7ad1eeddb9064d1480b8b2880bc085a07e81
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9731ac35f86f9a765e7db7e91786a9131051c00cb68986865ac10c72f597b493
[INFO] running `Command { std: "docker" "start" "-a" "9731ac35f86f9a765e7db7e91786a9131051c00cb68986865ac10c72f597b493", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking global v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/lib.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |                drop(unsafe {
[INFO] [stdout]     |   _____________^    -
[INFO] [stdout]     |  |__________________|
[INFO] [stdout] 304 | ||                 // The `if` above makes sure that the inner value has been
[INFO] [stdout] 305 | ||                 // initialized.
[INFO] [stdout] 306 | ||                 std::ptr::drop_in_place((*self.inner.get()).as_mut_ptr());
[INFO] [stdout] 307 | ||             });
[INFO] [stdout]     | ||_____________-^
[INFO] [stdout]     | |______________|
[INFO] [stdout]     |                argument has type `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 303 ~             let _ = unsafe {
[INFO] [stdout] 304 |                 // The `if` above makes sure that the inner value has been
[INFO] [stdout] 305 |                 // initialized.
[INFO] [stdout] 306 |                 std::ptr::drop_in_place((*self.inner.get()).as_mut_ptr());
[INFO] [stdout] 307 ~             };
[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/lib.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |                drop(unsafe {
[INFO] [stdout]     |   _____________^    -
[INFO] [stdout]     |  |__________________|
[INFO] [stdout] 304 | ||                 // The `if` above makes sure that the inner value has been
[INFO] [stdout] 305 | ||                 // initialized.
[INFO] [stdout] 306 | ||                 std::ptr::drop_in_place((*self.inner.get()).as_mut_ptr());
[INFO] [stdout] 307 | ||             });
[INFO] [stdout]     | ||_____________-^
[INFO] [stdout]     | |______________|
[INFO] [stdout]     |                argument has type `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 303 ~             let _ = unsafe {
[INFO] [stdout] 304 |                 // The `if` above makes sure that the inner value has been
[INFO] [stdout] 305 |                 // initialized.
[INFO] [stdout] 306 |                 std::ptr::drop_in_place((*self.inner.get()).as_mut_ptr());
[INFO] [stdout] 307 ~             };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `criterion`
[INFO] [stdout]  --> benches/immutable.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{black_box, Criterion, Throughput};
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `criterion`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `criterion`, use `cargo add criterion` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `global` (bench "immutable") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9731ac35f86f9a765e7db7e91786a9131051c00cb68986865ac10c72f597b493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9731ac35f86f9a765e7db7e91786a9131051c00cb68986865ac10c72f597b493", kill_on_drop: false }`
[INFO] [stdout] 9731ac35f86f9a765e7db7e91786a9131051c00cb68986865ac10c72f597b493