[INFO] cloning repository https://github.com/coopersimon/e-mips
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coopersimon/e-mips" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoopersimon%2Fe-mips", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoopersimon%2Fe-mips'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 60901afbe8d9f821cc5ef4f04e4686816a5a5793
[INFO] checking coopersimon/e-mips against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoopersimon%2Fe-mips" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/coopersimon/e-mips on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/coopersimon/e-mips
[INFO] finished tweaking git repo https://github.com/coopersimon/e-mips
[INFO] tweaked toml for git repo https://github.com/coopersimon/e-mips written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/coopersimon/e-mips already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc7c956cb27c26a6659a380a94d701020e5fac4b5926b3347e756af5ff7ca358
[INFO] running `Command { std: "docker" "start" "-a" "dc7c956cb27c26a6659a380a94d701020e5fac4b5926b3347e756af5ff7ca358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc7c956cb27c26a6659a380a94d701020e5fac4b5926b3347e756af5ff7ca358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc7c956cb27c26a6659a380a94d701020e5fac4b5926b3347e756af5ff7ca358", kill_on_drop: false }`
[INFO] [stdout] dc7c956cb27c26a6659a380a94d701020e5fac4b5926b3347e756af5ff7ca358
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 182941ec7189f4e2bc476224fb66ba2d7a04453df9d441a7b8dc40123dbd70cf
[INFO] running `Command { std: "docker" "start" "-a" "182941ec7189f4e2bc476224fb66ba2d7a04453df9d441a7b8dc40123dbd70cf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking mips v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Mem16`
[INFO] [stdout]   --> src/cpu/mips1/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Mem16,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exception`
[INFO] [stdout]    --> src/cpu/mips1/mod.rs:207:37
[INFO] [stdout]     |
[INFO] [stdout] 207 |     fn trigger_exception(&mut self, exception: ExceptionCode) {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_exception`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bit`
[INFO] [stdout]  --> src/common.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const fn bit(num: usize) -> u32 {
[INFO] [stdout]   |              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_bit`
[INFO] [stdout]   --> src/common.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub const fn test_bit(val: u32, bit_num: usize) -> bool {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make16`
[INFO] [stdout]   --> src/common.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub const fn make16(lo: u8, hi: u8) -> u16 {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lo16`
[INFO] [stdout]   --> src/common.rs:24:14
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub const fn lo16(val: u16) -> u8 {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hi16`
[INFO] [stdout]   --> src/common.rs:29:14
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub const fn hi16(val: u16) -> u8 {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make32`
[INFO] [stdout]   --> src/common.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub const fn make32(b0: u8, b1: u8, b2: u8, b3: u8) -> u32 {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bytes32`
[INFO] [stdout]   --> src/common.rs:41:14
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub const fn bytes32(val: u32) -> (u8, u8, u8, u8) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make64`
[INFO] [stdout]   --> src/common.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const fn make64(b0: u8, b1: u8, b2: u8, b3: u8, b4: u8, b5: u8, b6: u8, b7: u8) -> u64 {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bytes64`
[INFO] [stdout]   --> src/common.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub const fn bytes64(val: u64) -> (u8, u8, u8, u8, u8, u8, u8, u8) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mem16`
[INFO] [stdout]   --> src/cpu/mips1/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Mem16,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exception`
[INFO] [stdout]    --> src/cpu/mips1/mod.rs:207:37
[INFO] [stdout]     |
[INFO] [stdout] 207 |     fn trigger_exception(&mut self, exception: ExceptionCode) {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_exception`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bit`
[INFO] [stdout]  --> src/common.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const fn bit(num: usize) -> u32 {
[INFO] [stdout]   |              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_bit`
[INFO] [stdout]   --> src/common.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub const fn test_bit(val: u32, bit_num: usize) -> bool {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make64`
[INFO] [stdout]   --> src/common.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const fn make64(b0: u8, b1: u8, b2: u8, b3: u8, b4: u8, b5: u8, b6: u8, b7: u8) -> u64 {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bytes64`
[INFO] [stdout]   --> src/common.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub const fn bytes64(val: u64) -> (u8, u8, u8, u8, u8, u8, u8, u8) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.54s
[INFO] running `Command { std: "docker" "inspect" "182941ec7189f4e2bc476224fb66ba2d7a04453df9d441a7b8dc40123dbd70cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "182941ec7189f4e2bc476224fb66ba2d7a04453df9d441a7b8dc40123dbd70cf", kill_on_drop: false }`
[INFO] [stdout] 182941ec7189f4e2bc476224fb66ba2d7a04453df9d441a7b8dc40123dbd70cf