[INFO] crate conv 0.3.3 is already in cache
[INFO] testing conv-0.3.3 against 1.44.0 for beta-1.45-1
[INFO] extracting crate conv 0.3.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate conv 0.3.3 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate conv 0.3.3
[INFO] finished tweaking crates.io crate conv 0.3.3
[INFO] tweaked toml for crates.io crate conv 0.3.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49fbf965170bc58394dd35a9d83ccc0aeae00c2e561537910c6dc0b5a4f6bdfc
[INFO] running `"docker" "start" "-a" "49fbf965170bc58394dd35a9d83ccc0aeae00c2e561537910c6dc0b5a4f6bdfc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling conv v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "49fbf965170bc58394dd35a9d83ccc0aeae00c2e561537910c6dc0b5a4f6bdfc"`
[INFO] running `"docker" "rm" "-f" "49fbf965170bc58394dd35a9d83ccc0aeae00c2e561537910c6dc0b5a4f6bdfc"`
[INFO] [stdout] 49fbf965170bc58394dd35a9d83ccc0aeae00c2e561537910c6dc0b5a4f6bdfc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cd52caa969ec9bf757d77f21ede34c7d0a7fab7d663ae038295ae1e66ead97bb
[INFO] running `"docker" "start" "-a" "cd52caa969ec9bf757d77f21ede34c7d0a7fab7d663ae038295ae1e66ead97bb"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling quickcheck v0.2.24
[INFO] [stderr]    Compiling conv v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/derive_try_from.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate conv;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]  --> tests/util/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | / macro_rules! SL {
[INFO] [stderr] 2 | |     ($($tts:tt)*) => { stringify!($($tts)*) };
[INFO] [stderr] 3 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]  --> tests/util/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / macro_rules! as_expr {
[INFO] [stderr] 6 | |     ($e:expr) => {$e};
[INFO] [stderr] 7 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> tests/util/mod.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | / macro_rules! check {
[INFO] [stderr] 10  | |     (@ $from:ty, $to:ty=> $(;)*) => {};
[INFO] [stderr] 11  | |
[INFO] [stderr] 12  | |     (@ $from:ty, $to:ty=> cident; $($tail:tt)*) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 488 | |     };
[INFO] [stderr] 489 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> tests/util/mod.rs:491:1
[INFO] [stderr]     |
[INFO] [stderr] 491 | / macro_rules! for_bitness {
[INFO] [stderr] 492 | |     (32 {$($bits32:tt)*} 64 {$($bits64:tt)*}) => {
[INFO] [stderr] 493 | |         as_expr!(
[INFO] [stderr] 494 | |             {
[INFO] [stderr] ...   |
[INFO] [stderr] 508 | |     };
[INFO] [stderr] 509 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]  --> tests/util/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | / macro_rules! SL {
[INFO] [stderr] 2 | |     ($($tts:tt)*) => { stringify!($($tts)*) };
[INFO] [stderr] 3 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> tests/util/mod.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | / macro_rules! check {
[INFO] [stderr] 10  | |     (@ $from:ty, $to:ty=> $(;)*) => {};
[INFO] [stderr] 11  | |
[INFO] [stderr] 12  | |     (@ $from:ty, $to:ty=> cident; $($tail:tt)*) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 488 | |     };
[INFO] [stderr] 489 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]  --> tests/util/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / macro_rules! as_expr {
[INFO] [stderr] 6 | |     ($e:expr) => {$e};
[INFO] [stderr] 7 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> tests/util/mod.rs:491:1
[INFO] [stderr]     |
[INFO] [stderr] 491 | / macro_rules! for_bitness {
[INFO] [stderr] 492 | |     (32 {$($bits32:tt)*} 64 {$($bits64:tt)*}) => {
[INFO] [stderr] 493 | |         as_expr!(
[INFO] [stderr] 494 | |             {
[INFO] [stderr] ...   |
[INFO] [stderr] 508 | |     };
[INFO] [stderr] 509 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `conv`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name lang_floats tests/lang_floats.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C debuginfo=2 --test -C metadata=5e7c337204acb105 -C extra-filename=-5e7c337204acb105 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern conv=/opt/rustwide/target/debug/deps/libconv-08f983ba21884e2c.rlib --extern custom_derive=/opt/rustwide/target/debug/deps/libcustom_derive-2e5fcf0053df9f8e.rlib --extern quickcheck=/opt/rustwide/target/debug/deps/libquickcheck-677cc4debd219c61.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "cd52caa969ec9bf757d77f21ede34c7d0a7fab7d663ae038295ae1e66ead97bb"`
[INFO] running `"docker" "rm" "-f" "cd52caa969ec9bf757d77f21ede34c7d0a7fab7d663ae038295ae1e66ead97bb"`
[INFO] [stdout] cd52caa969ec9bf757d77f21ede34c7d0a7fab7d663ae038295ae1e66ead97bb