[INFO] fetching crate mars 0.0.0...
[INFO] checking mars-0.0.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate mars 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mars 0.0.0 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 mars 0.0.0
[INFO] finished tweaking crates.io crate mars 0.0.0
[INFO] tweaked toml for crates.io crate mars 0.0.0 written to /workspace/builds/worker-4/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] 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-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] f42d69cd0dcd3c294b1cf9d3ca38a18a900b2da076d6edbf419566d9671aa57e
[INFO] running `Command { std: "docker" "start" "-a" "f42d69cd0dcd3c294b1cf9d3ca38a18a900b2da076d6edbf419566d9671aa57e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f42d69cd0dcd3c294b1cf9d3ca38a18a900b2da076d6edbf419566d9671aa57e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f42d69cd0dcd3c294b1cf9d3ca38a18a900b2da076d6edbf419566d9671aa57e", kill_on_drop: false }`
[INFO] [stdout] f42d69cd0dcd3c294b1cf9d3ca38a18a900b2da076d6edbf419566d9671aa57e
[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=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] 3ac42ddf8998f827b92d08bb976029399af7a389d7e876011c65e8e2367942b4
[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" "3ac42ddf8998f827b92d08bb976029399af7a389d7e876011c65e8e2367942b4", kill_on_drop: false }`
[INFO] [stderr]     Checking mars v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/mars/mod.rs:191:33
[INFO] [stdout]     |
[INFO] [stdout] 191 |                 rpa = self.fold((rpa + self.core[((self.pc + rpa) % self.core_size)].b_number),
[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 method argument
[INFO] [stdout]    --> src/mars/mod.rs:191:33
[INFO] [stdout]     |
[INFO] [stdout] 191 |                 rpa = self.fold((rpa + self.core[((self.pc + rpa) % self.core_size)].b_number),
[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 method argument
[INFO] [stdout]    --> src/mars/mod.rs:193:33
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 wpa = self.fold((wpa + self.core[((self.pc + wpa) % self.core_size)].b_number),
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/mars/mod.rs:193:33
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 wpa = self.fold((wpa + self.core[((self.pc + wpa) % self.core_size)].b_number),
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ira`
[INFO] [stdout]    --> src/mars/mod.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let ira: Instruction;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_ira`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `irb`
[INFO] [stdout]    --> src/mars/mod.rs:157:13
[INFO] [stdout]     |
[INFO] [stdout] 157 |         let irb: Instruction;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_irb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rpb`
[INFO] [stdout]    --> src/mars/mod.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let rpb: Address;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rpb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wpb`
[INFO] [stdout]    --> src/mars/mod.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let wpb: Address;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_wpb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pip` is assigned to, but never used
[INFO] [stdout]    --> src/mars/mod.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let pip: Address;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_pip` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rpa` is never read
[INFO] [stdout]    --> src/mars/mod.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |             rpa = 0;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `wpa` is never read
[INFO] [stdout]    --> src/mars/mod.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             wpa = 0;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pip` is never read
[INFO] [stdout]    --> src/mars/mod.rs:188:21
[INFO] [stdout]     |
[INFO] [stdout] 188 |                     pip = (self.pc + wpa) % self.core_size;
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rpa` is never read
[INFO] [stdout]    --> src/mars/mod.rs:191:17
[INFO] [stdout]     |
[INFO] [stdout] 191 |                 rpa = self.fold((rpa + self.core[((self.pc + rpa) % self.core_size)].b_number),
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `wpa` is never read
[INFO] [stdout]    --> src/mars/mod.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 wpa = self.fold((wpa + self.core[((self.pc + wpa) % self.core_size)].b_number),
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ira`
[INFO] [stdout]    --> src/mars/mod.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let ira: Instruction;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_ira`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `irb`
[INFO] [stdout]    --> src/mars/mod.rs:157:13
[INFO] [stdout]     |
[INFO] [stdout] 157 |         let irb: Instruction;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_irb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rpb`
[INFO] [stdout]    --> src/mars/mod.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let rpb: Address;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_rpb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wpb`
[INFO] [stdout]    --> src/mars/mod.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let wpb: Address;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_wpb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pip` is assigned to, but never used
[INFO] [stdout]    --> src/mars/mod.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let pip: Address;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_pip` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rpa` is never read
[INFO] [stdout]    --> src/mars/mod.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |             rpa = 0;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `wpa` is never read
[INFO] [stdout]    --> src/mars/mod.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             wpa = 0;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pip` is never read
[INFO] [stdout]    --> src/mars/mod.rs:188:21
[INFO] [stdout]     |
[INFO] [stdout] 188 |                     pip = (self.pc + wpa) % self.core_size;
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rpa` is never read
[INFO] [stdout]    --> src/mars/mod.rs:191:17
[INFO] [stdout]     |
[INFO] [stdout] 191 |                 rpa = self.fold((rpa + self.core[((self.pc + rpa) % self.core_size)].b_number),
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `wpa` is never read
[INFO] [stdout]    --> src/mars/mod.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 wpa = self.fold((wpa + self.core[((self.pc + wpa) % self.core_size)].b_number),
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "3ac42ddf8998f827b92d08bb976029399af7a389d7e876011c65e8e2367942b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac42ddf8998f827b92d08bb976029399af7a389d7e876011c65e8e2367942b4", kill_on_drop: false }`
[INFO] [stdout] 3ac42ddf8998f827b92d08bb976029399af7a389d7e876011c65e8e2367942b4