[INFO] cloning repository https://github.com/trmckay/otter-sim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trmckay/otter-sim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrmckay%2Fotter-sim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrmckay%2Fotter-sim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ae35e724363b7ed474af937111f5e3a4eb2d245
[INFO] checking trmckay/otter-sim against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrmckay%2Fotter-sim" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/trmckay/otter-sim on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/trmckay/otter-sim
[INFO] finished tweaking git repo https://github.com/trmckay/otter-sim
[INFO] tweaked toml for git repo https://github.com/trmckay/otter-sim written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/trmckay/otter-sim already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bd50a273ba030cce5b99043c898d35511739a16d191f8a96859c066eaa8d883
[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" "9bd50a273ba030cce5b99043c898d35511739a16d191f8a96859c066eaa8d883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bd50a273ba030cce5b99043c898d35511739a16d191f8a96859c066eaa8d883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bd50a273ba030cce5b99043c898d35511739a16d191f8a96859c066eaa8d883", kill_on_drop: false }`
[INFO] [stdout] 9bd50a273ba030cce5b99043c898d35511739a16d191f8a96859c066eaa8d883
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fefb9ae0b75d6b6942db4beeed9b2a4521b97f21e6c5042ea5cfc39ac008873e
[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" "fefb9ae0b75d6b6942db4beeed9b2a4521b97f21e6c5042ea5cfc39ac008873e", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking otter-emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ir`
[INFO] [stdout]   --> src/./otter.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn validate(ir: rv32i::Instruction) {
[INFO] [stdout]    |                     ^^ help: if this is intentional, prefix it with an underscore: `_ir`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `validate`
[INFO] [stdout]   --> src/./otter.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn validate(ir: rv32i::Instruction) {
[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: `set_sw`
[INFO] [stdout]    --> src/./otter.rs:313:12
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn set_sw(&mut self, index: usize, set_on: bool) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `toggle_sw`
[INFO] [stdout]    --> src/./otter.rs:325:12
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn toggle_sw(&mut self, index: usize) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ir`
[INFO] [stdout]   --> src/./otter.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn validate(ir: rv32i::Instruction) {
[INFO] [stdout]    |                     ^^ help: if this is intentional, prefix it with an underscore: `_ir`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `validate`
[INFO] [stdout]   --> src/./otter.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn validate(ir: rv32i::Instruction) {
[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: `set_sw`
[INFO] [stdout]    --> src/./otter.rs:313:12
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn set_sw(&mut self, index: usize, set_on: bool) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `toggle_sw`
[INFO] [stdout]    --> src/./otter.rs:325:12
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn toggle_sw(&mut self, index: usize) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.66s
[INFO] running `Command { std: "docker" "inspect" "fefb9ae0b75d6b6942db4beeed9b2a4521b97f21e6c5042ea5cfc39ac008873e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fefb9ae0b75d6b6942db4beeed9b2a4521b97f21e6c5042ea5cfc39ac008873e", kill_on_drop: false }`
[INFO] [stdout] fefb9ae0b75d6b6942db4beeed9b2a4521b97f21e6c5042ea5cfc39ac008873e