[INFO] fetching crate isaac 0.1.0...
[INFO] testing isaac-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate isaac 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate isaac 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate isaac 0.1.0
[INFO] finished tweaking crates.io crate isaac 0.1.0
[INFO] tweaked toml for crates.io crate isaac 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] b80e0075572ca0c68f38620ec37e7e5f4cf01e1a6a223ffa205285052f78183b
[INFO] running `Command { std: "docker" "start" "-a" "b80e0075572ca0c68f38620ec37e7e5f4cf01e1a6a223ffa205285052f78183b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b80e0075572ca0c68f38620ec37e7e5f4cf01e1a6a223ffa205285052f78183b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b80e0075572ca0c68f38620ec37e7e5f4cf01e1a6a223ffa205285052f78183b", kill_on_drop: false }`
[INFO] [stdout] b80e0075572ca0c68f38620ec37e7e5f4cf01e1a6a223ffa205285052f78183b
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] 73524371e8fe3eca144e6eae9989d7e42ec44f1bd37431adb82503bfdfeb17c5
[INFO] running `Command { std: "docker" "start" "-a" "73524371e8fe3eca144e6eae9989d7e42ec44f1bd37431adb82503bfdfeb17c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rm v0.3.2
[INFO] [stderr]    Compiling isaac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `w32` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:27:6
[INFO] [stdout]    |
[INFO] [stdout] 27 | type w32 = w<u32>;
[INFO] [stdout]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `w64` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | type w64 = w<u64>;
[INFO] [stdout]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `w32`
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | type w32 = w<u32>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `empty` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | static empty: Rng = Rng {
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to upper case: `EMPTY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "73524371e8fe3eca144e6eae9989d7e42ec44f1bd37431adb82503bfdfeb17c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73524371e8fe3eca144e6eae9989d7e42ec44f1bd37431adb82503bfdfeb17c5", kill_on_drop: false }`
[INFO] [stdout] 73524371e8fe3eca144e6eae9989d7e42ec44f1bd37431adb82503bfdfeb17c5
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] 588eecd839346889c7a00e6d33e75821d9cf3cd3a19a99c717cf7a1988b152c9
[INFO] running `Command { std: "docker" "start" "-a" "588eecd839346889c7a00e6d33e75821d9cf3cd3a19a99c717cf7a1988b152c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling isaac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `w32` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:27:6
[INFO] [stdout]    |
[INFO] [stdout] 27 | type w32 = w<u32>;
[INFO] [stdout]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `w64` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | type w64 = w<u64>;
[INFO] [stdout]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `w32`
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | type w32 = w<u32>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `empty` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | static empty: Rng = Rng {
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to upper case: `EMPTY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `w32` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:27:6
[INFO] [stdout]    |
[INFO] [stdout] 27 | type w32 = w<u32>;
[INFO] [stdout]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `w64` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | type w64 = w<u64>;
[INFO] [stdout]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `w32`
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | type w32 = w<u32>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `empty` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | static empty: Rng = Rng {
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to upper case: `EMPTY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "588eecd839346889c7a00e6d33e75821d9cf3cd3a19a99c717cf7a1988b152c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588eecd839346889c7a00e6d33e75821d9cf3cd3a19a99c717cf7a1988b152c9", kill_on_drop: false }`
[INFO] [stdout] 588eecd839346889c7a00e6d33e75821d9cf3cd3a19a99c717cf7a1988b152c9
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] 2ccd3fc3562c938c5af01dc20cc4cf1b006664a7e39df4c5a3ad58a77174648f
[INFO] running `Command { std: "docker" "start" "-a" "2ccd3fc3562c938c5af01dc20cc4cf1b006664a7e39df4c5a3ad58a77174648f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: type `w32` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:27:6
[INFO] [stderr]    |
[INFO] [stderr] 27 | type w32 = w<u32>;
[INFO] [stderr]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `w64` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:28:6
[INFO] [stderr]    |
[INFO] [stderr] 28 | type w64 = w<u64>;
[INFO] [stderr]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W64`
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `w32`
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | type w32 = w<u32>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `empty` should have an upper case name
[INFO] [stderr]   --> src/lib.rs:66:8
[INFO] [stderr]    |
[INFO] [stderr] 66 | static empty: Rng = Rng {
[INFO] [stderr]    |        ^^^^^ help: convert the identifier to upper case: `EMPTY`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: type `w32` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:27:6
[INFO] [stderr]    |
[INFO] [stderr] 27 | type w32 = w<u32>;
[INFO] [stderr]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `w64` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:28:6
[INFO] [stderr]    |
[INFO] [stderr] 28 | type w64 = w<u64>;
[INFO] [stderr]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W64`
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `w32`
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | type w32 = w<u32>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `empty` should have an upper case name
[INFO] [stderr]   --> src/lib.rs:66:8
[INFO] [stderr]    |
[INFO] [stderr] 66 | static empty: Rng = Rng {
[INFO] [stderr]    |        ^^^^^ help: convert the identifier to upper case: `EMPTY`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/isaac-caf454edbd684644
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_rng_clone ... ok
[INFO] [stdout] test tests::test_rng_64_seeded ... ok
[INFO] [stdout] test tests::test_rng_64_reseed ... ok
[INFO] [stdout] test tests::test_rng_64_true_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests isaac
[INFO] [stderr] warning: type `w32` should have an upper camel case name
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:27:6
[INFO] [stderr]    |
[INFO] [stderr] 27 | type w32 = w<u32>;
[INFO] [stderr]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `w64` should have an upper camel case name
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:28:6
[INFO] [stderr]    |
[INFO] [stderr] 28 | type w64 = w<u64>;
[INFO] [stderr]    |      ^^^ help: convert the identifier to upper camel case (notice the capitalization): `W64`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ccd3fc3562c938c5af01dc20cc4cf1b006664a7e39df4c5a3ad58a77174648f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ccd3fc3562c938c5af01dc20cc4cf1b006664a7e39df4c5a3ad58a77174648f", kill_on_drop: false }`
[INFO] [stdout] 2ccd3fc3562c938c5af01dc20cc4cf1b006664a7e39df4c5a3ad58a77174648f