[INFO] fetching crate alloc-stdlib 0.2.1...
[INFO] checking alloc-stdlib-0.2.1 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate alloc-stdlib 0.2.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate alloc-stdlib 0.2.1 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alloc-stdlib 0.2.1
[INFO] finished tweaking crates.io crate alloc-stdlib 0.2.1
[INFO] tweaked toml for crates.io crate alloc-stdlib 0.2.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2512724008c593d11780e9c2dfead2d0d5870b0955c38bcf3ef2ba8eab349d64
[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" "2512724008c593d11780e9c2dfead2d0d5870b0955c38bcf3ef2ba8eab349d64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2512724008c593d11780e9c2dfead2d0d5870b0955c38bcf3ef2ba8eab349d64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2512724008c593d11780e9c2dfead2d0d5870b0955c38bcf3ef2ba8eab349d64", kill_on_drop: false }`
[INFO] [stdout] 2512724008c593d11780e9c2dfead2d0d5870b0955c38bcf3ef2ba8eab349d64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 79a706346c1da0ac5fa223bf9b74980aab9690436d44824f7fa51dd857e18cf6
[INFO] running `Command { std: "docker" "start" "-a" "79a706346c1da0ac5fa223bf9b74980aab9690436d44824f7fa51dd857e18cf6", kill_on_drop: false }`
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]     Checking alloc-stdlib v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/bin/example.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / extern {
[INFO] [stdout] 13 | |   fn calloc(n_elem : usize, el_size : usize) -> *mut u8;
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(missing_abi)]` on by default
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/bin/example.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | / extern {
[INFO] [stdout] 16 | |   fn free(ptr : *mut u8);
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/bin/example.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / extern {
[INFO] [stdout] 13 | |   fn calloc(n_elem : usize, el_size : usize) -> *mut u8;
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(missing_abi)]` on by default
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/bin/example.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | / extern {
[INFO] [stdout] 16 | |   fn free(ptr : *mut u8);
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> tests/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | / extern {
[INFO] [stdout] 30 | |   fn calloc(n_elem : usize, el_size : usize) -> *mut u8;
[INFO] [stdout] 31 | |   fn malloc(len : usize) -> *mut u8;
[INFO] [stdout] 32 | |   fn free(item : *mut u8);
[INFO] [stdout] 33 | | }
[INFO] [stdout]    | |_^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(missing_abi)]` on by default
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `alloc-stdlib`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "79a706346c1da0ac5fa223bf9b74980aab9690436d44824f7fa51dd857e18cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79a706346c1da0ac5fa223bf9b74980aab9690436d44824f7fa51dd857e18cf6", kill_on_drop: false }`
[INFO] [stdout] 79a706346c1da0ac5fa223bf9b74980aab9690436d44824f7fa51dd857e18cf6