[INFO] fetching crate tfio 0.1.32...
[INFO] checking tfio-0.1.32 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate tfio 0.1.32 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate tfio 0.1.32 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tfio 0.1.32
[INFO] finished tweaking crates.io crate tfio 0.1.32
[INFO] tweaked toml for crates.io crate tfio 0.1.32 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fdf964e429e4325be5f0cb698df43e6461db80fb3695c5b4a1de9d74a546eda
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6fdf964e429e4325be5f0cb698df43e6461db80fb3695c5b4a1de9d74a546eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fdf964e429e4325be5f0cb698df43e6461db80fb3695c5b4a1de9d74a546eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fdf964e429e4325be5f0cb698df43e6461db80fb3695c5b4a1de9d74a546eda", kill_on_drop: false }`
[INFO] [stdout] 6fdf964e429e4325be5f0cb698df43e6461db80fb3695c5b4a1de9d74a546eda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 310f06a84b34899b236a8bb4778319faba349d74de9ae950bbca11c85884ebd2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "310f06a84b34899b236a8bb4778319faba349d74de9ae950bbca11c85884ebd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking tfio v0.1.32 (/opt/rustwide/workdir)
[INFO] [stdout] warning: bounds on `Self: Drop` are useless, consider instead using `std::mem::needs_drop` to detect if a type has a destructor
[INFO] [stdout]   --> src/lib.rs:90:55
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub trait DirectoryOperation: RollbackableOperation + Drop {
[INFO] [stdout]    |                                                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(drop_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are useless, consider instead using `std::mem::needs_drop` to detect if a type has a destructor
[INFO] [stdout]    --> src/lib.rs:140:56
[INFO] [stdout]     |
[INFO] [stdout] 140 | pub trait SingleFileOperation: RollbackableOperation + Drop {
[INFO] [stdout]     |                                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are useless, consider instead using `std::mem::needs_drop` to detect if a type has a destructor
[INFO] [stdout]   --> src/lib.rs:90:55
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub trait DirectoryOperation: RollbackableOperation + Drop {
[INFO] [stdout]    |                                                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(drop_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are useless, consider instead using `std::mem::needs_drop` to detect if a type has a destructor
[INFO] [stdout]    --> src/lib.rs:140:56
[INFO] [stdout]     |
[INFO] [stdout] 140 | pub trait SingleFileOperation: RollbackableOperation + Drop {
[INFO] [stdout]     |                                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `Command { std: "docker" "inspect" "310f06a84b34899b236a8bb4778319faba349d74de9ae950bbca11c85884ebd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "310f06a84b34899b236a8bb4778319faba349d74de9ae950bbca11c85884ebd2", kill_on_drop: false }`
[INFO] [stdout] 310f06a84b34899b236a8bb4778319faba349d74de9ae950bbca11c85884ebd2