[INFO] fetching crate mmap-wrapper 2.0.1...
[INFO] checking mmap-wrapper-2.0.1 against try#0fe3684930279e4d3be3aca66b30f82946ce9ac2 for pr-138340
[INFO] extracting crate mmap-wrapper 2.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate mmap-wrapper 2.0.1 on toolchain 0fe3684930279e4d3be3aca66b30f82946ce9ac2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mmap-wrapper 2.0.1
[INFO] finished tweaking crates.io crate mmap-wrapper 2.0.1
[INFO] tweaked toml for crates.io crate mmap-wrapper 2.0.1 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" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbdfbf2d937e0f568422026e9794299ad15247df20274506174a1ffb62de11a4
[INFO] running `Command { std: "docker" "start" "-a" "cbdfbf2d937e0f568422026e9794299ad15247df20274506174a1ffb62de11a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbdfbf2d937e0f568422026e9794299ad15247df20274506174a1ffb62de11a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbdfbf2d937e0f568422026e9794299ad15247df20274506174a1ffb62de11a4", kill_on_drop: false }`
[INFO] [stdout] cbdfbf2d937e0f568422026e9794299ad15247df20274506174a1ffb62de11a4
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 591b0010fe3c875264a236b100138bc4f1fca1c1445f0e3f1a0e40c9bb7a4f38
[INFO] running `Command { std: "docker" "start" "-a" "591b0010fe3c875264a236b100138bc4f1fca1c1445f0e3f1a0e40c9bb7a4f38", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]     Checking mmap-wrapper v2.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::mem::transmute_copy`
[INFO] [stdout]  --> src/memmap2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::mem::transmute_copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::mem::transmute_copy`
[INFO] [stdout]  --> src/memmap2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::mem::transmute_copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `Command { std: "docker" "inspect" "591b0010fe3c875264a236b100138bc4f1fca1c1445f0e3f1a0e40c9bb7a4f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "591b0010fe3c875264a236b100138bc4f1fca1c1445f0e3f1a0e40c9bb7a4f38", kill_on_drop: false }`
[INFO] [stdout] 591b0010fe3c875264a236b100138bc4f1fca1c1445f0e3f1a0e40c9bb7a4f38