[INFO] fetching crate um32 1.0.2...
[INFO] testing um32-1.0.2 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate um32 1.0.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate um32 1.0.2 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate um32 1.0.2
[INFO] finished tweaking crates.io crate um32 1.0.2
[INFO] tweaked toml for crates.io crate um32 1.0.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byteorder v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3538b569b741fac911664d8d5f004cd393effedecc72822525e27df4286d5da4
[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" "3538b569b741fac911664d8d5f004cd393effedecc72822525e27df4286d5da4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3538b569b741fac911664d8d5f004cd393effedecc72822525e27df4286d5da4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3538b569b741fac911664d8d5f004cd393effedecc72822525e27df4286d5da4", kill_on_drop: false }`
[INFO] [stdout] 3538b569b741fac911664d8d5f004cd393effedecc72822525e27df4286d5da4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6eca9daeb13a4e91a967b9a5c0b8b143b81400ff6a5081c5aea50173438e55b4
[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" "6eca9daeb13a4e91a967b9a5c0b8b143b81400ff6a5081c5aea50173438e55b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling um32 v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 | /             mem::replace(
[INFO] [stdout] 176 | |                 self.heap.get_mut(address)
[INFO] [stdout] 177 | |                     .expect("memory was not previously allocated"),
[INFO] [stdout] 178 | |                 zeros
[INFO] [stdout] 179 | |             );
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 | /         mem::replace(
[INFO] [stdout] 189 | |             self.heap.get_mut(address)
[INFO] [stdout] 190 | |                 .expect("memory was not previously allocated"),
[INFO] [stdout] 191 | |             Vec::new()
[INFO] [stdout] 192 | |         );
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 | /         mem::replace(
[INFO] [stdout] 215 | |             memory.get_mut(idx)
[INFO] [stdout] 216 | |                 .expect("no value present at given idx"),
[INFO] [stdout] 217 | |             value
[INFO] [stdout] 218 | |         );
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:227:9
[INFO] [stdout]     |
[INFO] [stdout] 227 | /         mem::replace(
[INFO] [stdout] 228 | |             self.heap.get_mut(PROGRAM_ADDRESS)
[INFO] [stdout] 229 | |                 .expect("found no existing program"),
[INFO] [stdout] 230 | |             program
[INFO] [stdout] 231 | |         );
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6eca9daeb13a4e91a967b9a5c0b8b143b81400ff6a5081c5aea50173438e55b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eca9daeb13a4e91a967b9a5c0b8b143b81400ff6a5081c5aea50173438e55b4", kill_on_drop: false }`
[INFO] [stdout] 6eca9daeb13a4e91a967b9a5c0b8b143b81400ff6a5081c5aea50173438e55b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9162640c7efcece5c220a52353f6f5da7edf4304ac6ee7f326892f6f4312ff3c
[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" "9162640c7efcece5c220a52353f6f5da7edf4304ac6ee7f326892f6f4312ff3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling um32 v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 | /             mem::replace(
[INFO] [stdout] 176 | |                 self.heap.get_mut(address)
[INFO] [stdout] 177 | |                     .expect("memory was not previously allocated"),
[INFO] [stdout] 178 | |                 zeros
[INFO] [stdout] 179 | |             );
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 | /         mem::replace(
[INFO] [stdout] 189 | |             self.heap.get_mut(address)
[INFO] [stdout] 190 | |                 .expect("memory was not previously allocated"),
[INFO] [stdout] 191 | |             Vec::new()
[INFO] [stdout] 192 | |         );
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 | /         mem::replace(
[INFO] [stdout] 215 | |             memory.get_mut(idx)
[INFO] [stdout] 216 | |                 .expect("no value present at given idx"),
[INFO] [stdout] 217 | |             value
[INFO] [stdout] 218 | |         );
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:227:9
[INFO] [stdout]     |
[INFO] [stdout] 227 | /         mem::replace(
[INFO] [stdout] 228 | |             self.heap.get_mut(PROGRAM_ADDRESS)
[INFO] [stdout] 229 | |                 .expect("found no existing program"),
[INFO] [stdout] 230 | |             program
[INFO] [stdout] 231 | |         );
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "9162640c7efcece5c220a52353f6f5da7edf4304ac6ee7f326892f6f4312ff3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9162640c7efcece5c220a52353f6f5da7edf4304ac6ee7f326892f6f4312ff3c", kill_on_drop: false }`
[INFO] [stdout] 9162640c7efcece5c220a52353f6f5da7edf4304ac6ee7f326892f6f4312ff3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6024b7316d7bcfe0aa2220ce854df04bdfcad339f3aa640928905346fb1148c
[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" "d6024b7316d7bcfe0aa2220ce854df04bdfcad339f3aa640928905346fb1148c", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/main.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 | /             mem::replace(
[INFO] [stderr] 176 | |                 self.heap.get_mut(address)
[INFO] [stderr] 177 | |                     .expect("memory was not previously allocated"),
[INFO] [stderr] 178 | |                 zeros
[INFO] [stderr] 179 | |             );
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/main.rs:188:9
[INFO] [stderr]     |
[INFO] [stderr] 188 | /         mem::replace(
[INFO] [stderr] 189 | |             self.heap.get_mut(address)
[INFO] [stderr] 190 | |                 .expect("memory was not previously allocated"),
[INFO] [stderr] 191 | |             Vec::new()
[INFO] [stderr] 192 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/main.rs:214:9
[INFO] [stderr]     |
[INFO] [stderr] 214 | /         mem::replace(
[INFO] [stderr] 215 | |             memory.get_mut(idx)
[INFO] [stderr] 216 | |                 .expect("no value present at given idx"),
[INFO] [stderr] 217 | |             value
[INFO] [stderr] 218 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/main.rs:227:9
[INFO] [stderr]     |
[INFO] [stderr] 227 | /         mem::replace(
[INFO] [stderr] 228 | |             self.heap.get_mut(PROGRAM_ADDRESS)
[INFO] [stderr] 229 | |                 .expect("found no existing program"),
[INFO] [stderr] 230 | |             program
[INFO] [stderr] 231 | |         );
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/um32-43f0817a2b118e34)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test tests::test_extract_bits_0 ... ok
[INFO] [stdout] test tests::test_extract_bits_15 ... ok
[INFO] [stdout] test tests::test_parse_a ... ok
[INFO] [stdout] test tests::test_parse_op_add ... ok
[INFO] [stdout] test tests::test_parse_op_allocate ... ok
[INFO] [stdout] test tests::test_parse_op_array_get ... ok
[INFO] [stdout] test tests::test_parse_op_abandon ... ok
[INFO] [stdout] test tests::test_parse_op_halt ... ok
[INFO] [stdout] test tests::test_parse_c_ortho ... ok
[INFO] [stdout] test tests::test_parse_c ... ok
[INFO] [stdout] test tests::test_parse_op_input ... ok
[INFO] [stdout] test tests::test_parse_b_ortho ... ok
[INFO] [stdout] test tests::test_parse_op_load ... ok
[INFO] [stdout] test tests::test_parse_op_mov ... ok
[INFO] [stdout] test tests::test_parse_b ... ok
[INFO] [stdout] test tests::test_parse_op_mul ... ok
[INFO] [stdout] test tests::test_parse_op_nand ... ok
[INFO] [stdout] test tests::test_parse_op_ortho ... ok
[INFO] [stdout] test tests::test_parse_op_output ... ok
[INFO] [stdout] test tests::test_parse_value ... ok
[INFO] [stdout] test tests::test_parse_value_ortho ... ok
[INFO] [stdout] test tests::test_parse_a_ortho ... ok
[INFO] [stdout] test tests::test_parse_op_array_set ... ok
[INFO] [stdout] test tests::test_extract_bits_1 ... ok
[INFO] [stdout] test tests::test_extract_bits_256 ... ok
[INFO] [stdout] test tests::test_extract_bits_5 ... ok
[INFO] [stdout] test tests::test_parse_op_div ... ok
[INFO] [stdout] test tests::test_parse_op_err ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d6024b7316d7bcfe0aa2220ce854df04bdfcad339f3aa640928905346fb1148c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6024b7316d7bcfe0aa2220ce854df04bdfcad339f3aa640928905346fb1148c", kill_on_drop: false }`
[INFO] [stdout] d6024b7316d7bcfe0aa2220ce854df04bdfcad339f3aa640928905346fb1148c