[INFO] cloning repository https://github.com/FredrikMeyer/tiny_compiler_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FredrikMeyer/tiny_compiler_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredrikMeyer%2Ftiny_compiler_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredrikMeyer%2Ftiny_compiler_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd93446854a34cc72a0fc1388e416f048d02c194
[INFO] testing FredrikMeyer/tiny_compiler_rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredrikMeyer%2Ftiny_compiler_rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FredrikMeyer/tiny_compiler_rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FredrikMeyer/tiny_compiler_rust
[INFO] finished tweaking git repo https://github.com/FredrikMeyer/tiny_compiler_rust
[INFO] tweaked toml for git repo https://github.com/FredrikMeyer/tiny_compiler_rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/FredrikMeyer/tiny_compiler_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 804e47b3848d7d2c8d3a9ee570ec2ce05be8896a380f0900980b9baba086e4a6
[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" "804e47b3848d7d2c8d3a9ee570ec2ce05be8896a380f0900980b9baba086e4a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "804e47b3848d7d2c8d3a9ee570ec2ce05be8896a380f0900980b9baba086e4a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "804e47b3848d7d2c8d3a9ee570ec2ce05be8896a380f0900980b9baba086e4a6", kill_on_drop: false }`
[INFO] [stdout] 804e47b3848d7d2c8d3a9ee570ec2ce05be8896a380f0900980b9baba086e4a6
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", 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] 5e3a1896604e7122fd079040bda01cf24676d2c1e9ccc0fe2f3364ab368a509b
[INFO] running `Command { std: "docker" "start" "-a" "5e3a1896604e7122fd079040bda01cf24676d2c1e9ccc0fe2f3364ab368a509b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BufWriter`, `Write`
[INFO] [stdout]  --> src/main.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{stdin, BufRead, BufWriter, Write},
[INFO] [stdout]   |                          ^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn read_from_stdin<R>(mut reader: R) -> String
[INFO] [stdout]   |                       ----^^^^^^
[INFO] [stdout]   |                       |
[INFO] [stdout]   |                       help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `abort`
[INFO] [stdout]   --> src/tokenizer.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn abort(&self, _message: String) {}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "5e3a1896604e7122fd079040bda01cf24676d2c1e9ccc0fe2f3364ab368a509b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e3a1896604e7122fd079040bda01cf24676d2c1e9ccc0fe2f3364ab368a509b", kill_on_drop: false }`
[INFO] [stdout] 5e3a1896604e7122fd079040bda01cf24676d2c1e9ccc0fe2f3364ab368a509b
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", 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] fd01b3def62de6f7256da2e9531c2afee6583cb5c39538cfcc95aae0c47af89c
[INFO] running `Command { std: "docker" "start" "-a" "fd01b3def62de6f7256da2e9531c2afee6583cb5c39538cfcc95aae0c47af89c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BufWriter`, `Write`
[INFO] [stdout]  --> src/main.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{stdin, BufRead, BufWriter, Write},
[INFO] [stdout]   |                          ^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn read_from_stdin<R>(mut reader: R) -> String
[INFO] [stdout]   |                       ----^^^^^^
[INFO] [stdout]   |                       |
[INFO] [stdout]   |                       help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `abort`
[INFO] [stdout]   --> src/tokenizer.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn abort(&self, _message: String) {}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "fd01b3def62de6f7256da2e9531c2afee6583cb5c39538cfcc95aae0c47af89c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd01b3def62de6f7256da2e9531c2afee6583cb5c39538cfcc95aae0c47af89c", kill_on_drop: false }`
[INFO] [stdout] fd01b3def62de6f7256da2e9531c2afee6583cb5c39538cfcc95aae0c47af89c
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", 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] 7c89be61edaa7c133c7f2f3402a1795389d58e1a1f44de13b9e0095a12197181
[INFO] running `Command { std: "docker" "start" "-a" "7c89be61edaa7c133c7f2f3402a1795389d58e1a1f44de13b9e0095a12197181", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `BufWriter`, `Write`
[INFO] [stderr]  --> src/main.rs:2:26
[INFO] [stderr]   |
[INFO] [stderr] 2 |     io::{stdin, BufRead, BufWriter, Write},
[INFO] [stderr]   |                          ^^^^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:8:23
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn read_from_stdin<R>(mut reader: R) -> String
[INFO] [stderr]   |                       ----^^^^^^
[INFO] [stderr]   |                       |
[INFO] [stderr]   |                       help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `abort`
[INFO] [stderr]   --> src/tokenizer.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn abort(&self, _message: String) {}
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_compiler` (bin "rust_compiler" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_compiler-8d7c4733fbcfda6e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_read_input ... ok
[INFO] [stdout] test tokenizer::tests::test_if_then ... ok
[INFO] [stdout] test tokenizer::tests::test_comment ... ok
[INFO] [stdout] test tokenizer::tests::test_read_string ... ok
[INFO] [stdout] test tokenizer::tests::test_read_token ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7c89be61edaa7c133c7f2f3402a1795389d58e1a1f44de13b9e0095a12197181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c89be61edaa7c133c7f2f3402a1795389d58e1a1f44de13b9e0095a12197181", kill_on_drop: false }`
[INFO] [stdout] 7c89be61edaa7c133c7f2f3402a1795389d58e1a1f44de13b9e0095a12197181