[INFO] cloning repository https://github.com/erumachi/col-interpreter-from-scratch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/erumachi/col-interpreter-from-scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferumachi%2Fcol-interpreter-from-scratch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferumachi%2Fcol-interpreter-from-scratch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ad2377bd2a7f855b9bc7b1346d7752cb70dedb9
[INFO] testing erumachi/col-interpreter-from-scratch against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferumachi%2Fcol-interpreter-from-scratch" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/erumachi/col-interpreter-from-scratch on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/erumachi/col-interpreter-from-scratch
[INFO] finished tweaking git repo https://github.com/erumachi/col-interpreter-from-scratch
[INFO] tweaked toml for git repo https://github.com/erumachi/col-interpreter-from-scratch written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/erumachi/col-interpreter-from-scratch already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53fe5242ad88caa20786cbe56e978c09b31591d9cf68cc34635c42cc826118f9
[INFO] running `Command { std: "docker" "start" "-a" "53fe5242ad88caa20786cbe56e978c09b31591d9cf68cc34635c42cc826118f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53fe5242ad88caa20786cbe56e978c09b31591d9cf68cc34635c42cc826118f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53fe5242ad88caa20786cbe56e978c09b31591d9cf68cc34635c42cc826118f9", kill_on_drop: false }`
[INFO] [stdout] 53fe5242ad88caa20786cbe56e978c09b31591d9cf68cc34635c42cc826118f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f944248e361a11dfd1f9f1d10f5e05f5fdb2c20a5fd7652c955c6fbcbe56a97
[INFO] running `Command { std: "docker" "start" "-a" "9f944248e361a11dfd1f9f1d10f5e05f5fdb2c20a5fd7652c955c6fbcbe56a97", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling col-interpreter-from-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `length`
[INFO] [stdout]   --> src/stack.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn length(&self) -> usize {
[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: `swap`
[INFO] [stdout]   --> src/stack.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn swap(&mut self, a: usize, b: usize) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove`
[INFO] [stdout]   --> src/stack.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn remove(&mut self, idx: usize) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap`
[INFO] [stdout]   --> src/stack.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn swap(&mut self, a: usize, b: usize) -> Result<(), String> {
[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: `remove`
[INFO] [stdout]   --> src/stack.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn remove(&mut self, idx: usize) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.35s
[INFO] running `Command { std: "docker" "inspect" "9f944248e361a11dfd1f9f1d10f5e05f5fdb2c20a5fd7652c955c6fbcbe56a97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f944248e361a11dfd1f9f1d10f5e05f5fdb2c20a5fd7652c955c6fbcbe56a97", kill_on_drop: false }`
[INFO] [stdout] 9f944248e361a11dfd1f9f1d10f5e05f5fdb2c20a5fd7652c955c6fbcbe56a97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87f22a060ea623545609bd70f27a8a295b1028f74b3308b3b0b0342078ea31cc
[INFO] running `Command { std: "docker" "start" "-a" "87f22a060ea623545609bd70f27a8a295b1028f74b3308b3b0b0342078ea31cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling col-interpreter-from-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `length`
[INFO] [stdout]   --> src/stack.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn length(&self) -> usize {
[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: `swap`
[INFO] [stdout]   --> src/stack.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn swap(&mut self, a: usize, b: usize) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove`
[INFO] [stdout]   --> src/stack.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn remove(&mut self, idx: usize) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap`
[INFO] [stdout]   --> src/stack.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn swap(&mut self, a: usize, b: usize) -> Result<(), String> {
[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: `remove`
[INFO] [stdout]   --> src/stack.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn remove(&mut self, idx: usize) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "87f22a060ea623545609bd70f27a8a295b1028f74b3308b3b0b0342078ea31cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87f22a060ea623545609bd70f27a8a295b1028f74b3308b3b0b0342078ea31cc", kill_on_drop: false }`
[INFO] [stdout] 87f22a060ea623545609bd70f27a8a295b1028f74b3308b3b0b0342078ea31cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 56ee15b080dd47125562e7d8bccf17a9ccd49a37c046932911d47421a94cb045
[INFO] running `Command { std: "docker" "start" "-a" "56ee15b080dd47125562e7d8bccf17a9ccd49a37c046932911d47421a94cb045", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `length`
[INFO] [stderr]   --> src/stack.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn length(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `swap`
[INFO] [stderr]   --> src/stack.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn swap(&mut self, a: usize, b: usize) -> Result<(), String> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `remove`
[INFO] [stderr]   --> src/stack.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn remove(&mut self, idx: usize) -> Result<(), String> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `col-interpreter-from-scratch` (bin "part_2" test) generated 3 warnings
[INFO] [stderr] warning: associated function is never used: `swap`
[INFO] [stderr]   --> src/stack.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn swap(&mut self, a: usize, b: usize) -> Result<(), String> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `col-interpreter-from-scratch` (bin "part_3" test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.30s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/part_0-6d5875faa1feea0b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/part_1-e2213a1288bb8e0b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/part_2-7a4985a0afd4553b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/part_3-a7b31cb3bd338f83)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/part_4-d04f5369090deb56)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/part_5-858507e8cdc10bbd)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "56ee15b080dd47125562e7d8bccf17a9ccd49a37c046932911d47421a94cb045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56ee15b080dd47125562e7d8bccf17a9ccd49a37c046932911d47421a94cb045", kill_on_drop: false }`
[INFO] [stdout] 56ee15b080dd47125562e7d8bccf17a9ccd49a37c046932911d47421a94cb045