[INFO] cloning repository https://github.com/benjaminhadfield/mmu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benjaminhadfield/mmu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjaminhadfield%2Fmmu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjaminhadfield%2Fmmu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2608b8855ef509e896b9f46f439ef0d42417022
[INFO] testing benjaminhadfield/mmu against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjaminhadfield%2Fmmu" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benjaminhadfield/mmu on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benjaminhadfield/mmu
[INFO] finished tweaking git repo https://github.com/benjaminhadfield/mmu
[INFO] tweaked toml for git repo https://github.com/benjaminhadfield/mmu written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/benjaminhadfield/mmu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92a2531ff1f2542b1c74e0c0fdb594ebb4b995469306bb508dab64677db540a6
[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" "92a2531ff1f2542b1c74e0c0fdb594ebb4b995469306bb508dab64677db540a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92a2531ff1f2542b1c74e0c0fdb594ebb4b995469306bb508dab64677db540a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a2531ff1f2542b1c74e0c0fdb594ebb4b995469306bb508dab64677db540a6", kill_on_drop: false }`
[INFO] [stdout] 92a2531ff1f2542b1c74e0c0fdb594ebb4b995469306bb508dab64677db540a6
[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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41d70932863e209663bcf091ae0fd63dd56a5cfd5ea706c79462431e301c3cb3
[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" "41d70932863e209663bcf091ae0fd63dd56a5cfd5ea706c79462431e301c3cb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling mmu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `e`
[INFO] [stdout]   --> src/hardware.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     e: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `s`
[INFO] [stdout]   --> src/hardware.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     s: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tlb`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let tlb = hardware::TLB::new(4, 4);
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_tlb`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "41d70932863e209663bcf091ae0fd63dd56a5cfd5ea706c79462431e301c3cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d70932863e209663bcf091ae0fd63dd56a5cfd5ea706c79462431e301c3cb3", kill_on_drop: false }`
[INFO] [stdout] 41d70932863e209663bcf091ae0fd63dd56a5cfd5ea706c79462431e301c3cb3
[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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb32f084d993ac57c7c729b91f5f499eba438b6ea71dc267cf1d753ca4905a3a
[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" "fb32f084d993ac57c7c729b91f5f499eba438b6ea71dc267cf1d753ca4905a3a", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `e`
[INFO] [stdout]   --> src/hardware.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     e: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mmu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `s`
[INFO] [stdout]   --> src/hardware.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     s: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `e`
[INFO] [stdout]   --> src/hardware.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     e: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `s`
[INFO] [stdout]   --> src/hardware.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     s: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tlb`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let tlb = hardware::TLB::new(4, 4);
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_tlb`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "fb32f084d993ac57c7c729b91f5f499eba438b6ea71dc267cf1d753ca4905a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb32f084d993ac57c7c729b91f5f499eba438b6ea71dc267cf1d753ca4905a3a", kill_on_drop: false }`
[INFO] [stdout] fb32f084d993ac57c7c729b91f5f499eba438b6ea71dc267cf1d753ca4905a3a
[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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08cf4a44364a76895fa2ba0cd34109e5eb4eb03e3f42f9bf1ac6cb476214a1fc
[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" "08cf4a44364a76895fa2ba0cd34109e5eb4eb03e3f42f9bf1ac6cb476214a1fc", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `e`
[INFO] [stderr]   --> src/hardware.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     e: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `s`
[INFO] [stderr]   --> src/hardware.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     s: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `e`
[INFO] [stderr]   --> src/hardware.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     e: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `s`
[INFO] [stderr]   --> src/hardware.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     s: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tlb`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let tlb = hardware::TLB::new(4, 4);
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_tlb`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mmu-5ffc66a6817e9fe3
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mmu-f363b0d4343a17a0
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mmu
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/address.rs - address::po (line 11) ... FAILED
[INFO] [stdout] test src/address.rs - address::pn (line 30) ... FAILED
[INFO] [stdout] test src/hardware.rs - hardware::TLB::new (line 54) ... ok
[INFO] [stdout] test src/hardware.rs - hardware::Memory::new (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/address.rs - address::po (line 11) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `address`
[INFO] [stdout]  --> src/address.rs:12:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use address;
[INFO] [stdout]   |     ^^^^^^^ no `address` in the root
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Memory`
[INFO] [stdout]  --> src/address.rs:15:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | let mm = Memory::new(4, 12, 14);
[INFO] [stdout]   |          ^^^^^^ use of undeclared type `Memory`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/address.rs - address::pn (line 30) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `address`
[INFO] [stdout]  --> src/address.rs:31:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use address;
[INFO] [stdout]   |     ^^^^^^^ no `address` in the root
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Memory`
[INFO] [stdout]  --> src/address.rs:34:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | let mm = Memory::new(4, 12, 14);
[INFO] [stdout]   |          ^^^^^^ use of undeclared type `Memory`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/address.rs - address::pn (line 30)
[INFO] [stdout]     src/address.rs - address::po (line 11)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "08cf4a44364a76895fa2ba0cd34109e5eb4eb03e3f42f9bf1ac6cb476214a1fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08cf4a44364a76895fa2ba0cd34109e5eb4eb03e3f42f9bf1ac6cb476214a1fc", kill_on_drop: false }`
[INFO] [stdout] 08cf4a44364a76895fa2ba0cd34109e5eb4eb03e3f42f9bf1ac6cb476214a1fc