[INFO] fetching crate cbox 0.3.0...
[INFO] checking cbox-0.3.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate cbox 0.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate cbox 0.3.0 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 cbox 0.3.0
[INFO] finished tweaking crates.io crate cbox 0.3.0
[INFO] tweaked toml for crates.io crate cbox 0.3.0 written to /workspace/builds/worker-10/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 507eacf55697ed9e3f0f738db095034de50012d3d15b93996f3b3304ba907084
[INFO] running `Command { std: "docker" "start" "-a" "507eacf55697ed9e3f0f738db095034de50012d3d15b93996f3b3304ba907084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "507eacf55697ed9e3f0f738db095034de50012d3d15b93996f3b3304ba907084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507eacf55697ed9e3f0f738db095034de50012d3d15b93996f3b3304ba907084", kill_on_drop: false }`
[INFO] [stdout] 507eacf55697ed9e3f0f738db095034de50012d3d15b93996f3b3304ba907084
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] 97a065977f1ea03ed8bce7cbd4b76f0176fbd17b871d8e95919d880af9a8bd28
[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" "97a065977f1ea03ed8bce7cbd4b76f0176fbd17b871d8e95919d880af9a8bd28", kill_on_drop: false }`
[INFO] [stderr]     Checking cbox v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> examples/str.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / extern {
[INFO] [stdout] 9  | |     fn printf(fmt: *const u8, text: *mut libc::c_char);
[INFO] [stdout] 10 | | }
[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]   --> examples/str.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / extern fn steal_print(text: *mut libc::c_char) {
[INFO] [stdout] 13 | |     unsafe {
[INFO] [stdout] 14 | |         printf(PRINT_TEXT.as_ptr(), text);
[INFO] [stdout] 15 | |         libc::free(text as *mut libc::c_void);
[INFO] [stdout] 16 | |     }
[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] [stderr] error: could not compile `cbox`.
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "97a065977f1ea03ed8bce7cbd4b76f0176fbd17b871d8e95919d880af9a8bd28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97a065977f1ea03ed8bce7cbd4b76f0176fbd17b871d8e95919d880af9a8bd28", kill_on_drop: false }`
[INFO] [stdout] 97a065977f1ea03ed8bce7cbd4b76f0176fbd17b871d8e95919d880af9a8bd28