[INFO] fetching crate libcw 0.1.1...
[INFO] checking libcw-0.1.1 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate libcw 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate libcw 0.1.1 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libcw 0.1.1
[INFO] finished tweaking crates.io crate libcw 0.1.1
[INFO] tweaked toml for crates.io crate libcw 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a160f9effe939fb0589210fe54e2d2fddf3d59f19d48696061090b87db77622c
[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" "a160f9effe939fb0589210fe54e2d2fddf3d59f19d48696061090b87db77622c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a160f9effe939fb0589210fe54e2d2fddf3d59f19d48696061090b87db77622c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a160f9effe939fb0589210fe54e2d2fddf3d59f19d48696061090b87db77622c", kill_on_drop: false }`
[INFO] [stdout] a160f9effe939fb0589210fe54e2d2fddf3d59f19d48696061090b87db77622c
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2872d1c6f8d3299b0437a5b83170d6e8f0e8342d9030a69b14f4ca9b63ac084a
[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" "2872d1c6f8d3299b0437a5b83170d6e8f0e8342d9030a69b14f4ca9b63ac084a", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking libcw v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/simulation/mars.rs:482:13
[INFO] [stdout]     |
[INFO] [stdout] 482 |             (base.wrapping_sub(-offset as Address) % self.size() as Address)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/simulation/mars.rs:484:13
[INFO] [stdout]     |
[INFO] [stdout] 484 |             (base.wrapping_add(offset as Address) % self.size() as Address)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use] extern crate lazy_static;
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/simulation/mars.rs:482:13
[INFO] [stdout]     |
[INFO] [stdout] 482 |             (base.wrapping_sub(-offset as Address) % self.size() as Address)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/simulation/mars.rs:484:13
[INFO] [stdout]     |
[INFO] [stdout] 484 |             (base.wrapping_add(offset as Address) % self.size() as Address)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use] extern crate lazy_static;
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     unimplemented!();
[INFO] [stdout]     |     ----------------- any code following this expression is unreachable
[INFO] [stdout] 128 |     Ok(())
[INFO] [stdout]     |     ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `program_str`
[INFO] [stdout]    --> src/parser.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn lex_into<'a>(program_str: &'a str, buf: &'a mut Vec<Token>)
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program_str`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/parser.rs:124:39
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn lex_into<'a>(program_str: &'a str, buf: &'a mut Vec<Token>)
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     unimplemented!();
[INFO] [stdout]     |     ----------------- any code following this expression is unreachable
[INFO] [stdout] 128 |     Ok(())
[INFO] [stdout]     |     ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `program_str`
[INFO] [stdout]    --> src/parser.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn lex_into<'a>(program_str: &'a str, buf: &'a mut Vec<Token>)
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program_str`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/parser.rs:124:39
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn lex_into<'a>(program_str: &'a str, buf: &'a mut Vec<Token>)
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_pspace`
[INFO] [stdout]    --> src/simulation/mars.rs:628:8
[INFO] [stdout]     |
[INFO] [stdout] 628 |     fn store_pspace(&mut self, pin: Pin, addr: Address, value: Value)
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_effective_a`
[INFO] [stdout]    --> src/simulation/mars.rs:644:8
[INFO] [stdout]     |
[INFO] [stdout] 644 |     fn store_effective_a(&mut self, instr: T)
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fetch_pspace`
[INFO] [stdout]    --> src/simulation/mars.rs:675:8
[INFO] [stdout]     |
[INFO] [stdout] 675 |     fn fetch_pspace(&self, pin: Pin, addr: Address) -> Value
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_pspace`
[INFO] [stdout]    --> src/simulation/mars.rs:628:8
[INFO] [stdout]     |
[INFO] [stdout] 628 |     fn store_pspace(&mut self, pin: Pin, addr: Address, value: Value)
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_effective_a`
[INFO] [stdout]    --> src/simulation/mars.rs:644:8
[INFO] [stdout]     |
[INFO] [stdout] 644 |     fn store_effective_a(&mut self, instr: T)
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fetch_pspace`
[INFO] [stdout]    --> src/simulation/mars.rs:675:8
[INFO] [stdout]     |
[INFO] [stdout] 675 |     fn fetch_pspace(&self, pin: Pin, addr: Address) -> Value
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "2872d1c6f8d3299b0437a5b83170d6e8f0e8342d9030a69b14f4ca9b63ac084a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2872d1c6f8d3299b0437a5b83170d6e8f0e8342d9030a69b14f4ca9b63ac084a", kill_on_drop: false }`
[INFO] [stdout] 2872d1c6f8d3299b0437a5b83170d6e8f0e8342d9030a69b14f4ca9b63ac084a