[INFO] fetching crate rwasm 2020.1.1...
[INFO] checking rwasm-2020.1.1 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate rwasm 2020.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rwasm 2020.1.1 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] started tweaking crates.io crate rwasm 2020.1.1
[INFO] finished tweaking crates.io crate rwasm 2020.1.1
[INFO] tweaked toml for crates.io crate rwasm 2020.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate rwasm 2020.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cccc25c7913c456b4066ccf54368198915fd1595e8fe50b72756634a26dc940
[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" "9cccc25c7913c456b4066ccf54368198915fd1595e8fe50b72756634a26dc940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cccc25c7913c456b4066ccf54368198915fd1595e8fe50b72756634a26dc940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cccc25c7913c456b4066ccf54368198915fd1595e8fe50b72756634a26dc940", kill_on_drop: false }`
[INFO] [stdout] 9cccc25c7913c456b4066ccf54368198915fd1595e8fe50b72756634a26dc940
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d14b21c784d29f920f5ae30b4ee26bd25dd670f9748e7ccf79f5fdf34efc6cf0
[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" "d14b21c784d29f920f5ae30b4ee26bd25dd670f9748e7ccf79f5fdf34efc6cf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking rwasm v2020.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to a function or static
[INFO] [stdout]   --> src/timer.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 |   #[no_mangle]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 50 | / extern "C" {
[INFO] [stdout] 51 | |     pub fn request_timeout(listener_id: u32, millis: u32);
[INFO] [stdout] 52 | | }
[INFO] [stdout]    | |_- not a function or static
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a function or static
[INFO] [stdout]   --> src/wasm.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 |   #[no_mangle]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 87 | / extern "C" {
[INFO] [stdout] 88 | |     pub fn upload_bytes(data: *const u8, length: usize) -> usize;
[INFO] [stdout] 89 | | }
[INFO] [stdout]    | |_- not a function or static
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a function or static
[INFO] [stdout]   --> src/timer.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 |   #[no_mangle]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 50 | / extern "C" {
[INFO] [stdout] 51 | |     pub fn request_timeout(listener_id: u32, millis: u32);
[INFO] [stdout] 52 | | }
[INFO] [stdout]    | |_- not a function or static
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a function or static
[INFO] [stdout]   --> src/wasm.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 |   #[no_mangle]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 87 | / extern "C" {
[INFO] [stdout] 88 | |     pub fn upload_bytes(data: *const u8, length: usize) -> usize;
[INFO] [stdout] 89 | | }
[INFO] [stdout]    | |_- not a function or static
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `seconds_now`
[INFO] [stdout]  --> src/date.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn seconds_now() -> f64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `seconds_now`
[INFO] [stdout]  --> src/date.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn seconds_now() -> f64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.92s
[INFO] running `Command { std: "docker" "inspect" "d14b21c784d29f920f5ae30b4ee26bd25dd670f9748e7ccf79f5fdf34efc6cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14b21c784d29f920f5ae30b4ee26bd25dd670f9748e7ccf79f5fdf34efc6cf0", kill_on_drop: false }`
[INFO] [stdout] d14b21c784d29f920f5ae30b4ee26bd25dd670f9748e7ccf79f5fdf34efc6cf0