[INFO] cloning repository https://github.com/tsandstr/chidog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsandstr/chidog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsandstr%2Fchidog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsandstr%2Fchidog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d10239817a857c901125380222f9f92b5c04968
[INFO] checking tsandstr/chidog against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsandstr%2Fchidog" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tsandstr/chidog
[INFO] finished tweaking git repo https://github.com/tsandstr/chidog
[INFO] tweaked toml for git repo https://github.com/tsandstr/chidog written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tsandstr/chidog on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tsandstr/chidog already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1ea40e8145d9eb4dad019cc69fce50c14214ac96794e9d0320eacfbbbabda7f
[INFO] running `Command { std: "docker" "start" "-a" "b1ea40e8145d9eb4dad019cc69fce50c14214ac96794e9d0320eacfbbbabda7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1ea40e8145d9eb4dad019cc69fce50c14214ac96794e9d0320eacfbbbabda7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1ea40e8145d9eb4dad019cc69fce50c14214ac96794e9d0320eacfbbbabda7f", kill_on_drop: false }`
[INFO] [stdout] b1ea40e8145d9eb4dad019cc69fce50c14214ac96794e9d0320eacfbbbabda7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 652b926fd1ea65f7919fe7e3bde80f11ac67afa83a601be6f9c8ed778a2142e2
[INFO] running `Command { std: "docker" "start" "-a" "652b926fd1ea65f7919fe7e3bde80f11ac67afa83a601be6f9c8ed778a2142e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking chidog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:129:18
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn sub(self, rhs: Self) -> Self::Output {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:213:30
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn add_assign(&mut self, rhs: Self) {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:225:30
[INFO] [stdout]     |
[INFO] [stdout] 225 |     fn sub_assign(&mut self, rhs: Self) {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:237:30
[INFO] [stdout]     |
[INFO] [stdout] 237 |     fn mul_assign(&mut self, rhs: Self) {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `base` is never read
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct PolynomialRing<'a, R, V> {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 38 |     vars: Vec<V>,
[INFO] [stdout] 39 |     base: &'a R,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:129:18
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn sub(self, rhs: Self) -> Self::Output {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:213:30
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn add_assign(&mut self, rhs: Self) {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:225:30
[INFO] [stdout]     |
[INFO] [stdout] 225 |     fn sub_assign(&mut self, rhs: Self) {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/main.rs:237:30
[INFO] [stdout]     |
[INFO] [stdout] 237 |     fn mul_assign(&mut self, rhs: Self) {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `base` is never read
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct PolynomialRing<'a, R, V> {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 38 |     vars: Vec<V>,
[INFO] [stdout] 39 |     base: &'a R,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "652b926fd1ea65f7919fe7e3bde80f11ac67afa83a601be6f9c8ed778a2142e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "652b926fd1ea65f7919fe7e3bde80f11ac67afa83a601be6f9c8ed778a2142e2", kill_on_drop: false }`
[INFO] [stdout] 652b926fd1ea65f7919fe7e3bde80f11ac67afa83a601be6f9c8ed778a2142e2