[INFO] cloning repository https://github.com/DaVinci789/rust_config_file
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DaVinci789/rust_config_file" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaVinci789%2Frust_config_file", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaVinci789%2Frust_config_file'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ede34427dd04903c2da696edacc69a9fb56a12ab
[INFO] testing DaVinci789/rust_config_file 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%2FDaVinci789%2Frust_config_file" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DaVinci789/rust_config_file 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/DaVinci789/rust_config_file
[INFO] finished tweaking git repo https://github.com/DaVinci789/rust_config_file
[INFO] tweaked toml for git repo https://github.com/DaVinci789/rust_config_file written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/DaVinci789/rust_config_file 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 81f01b1e0b634165e0549a3f1aec4cb5761dcbda9ebf96c25a14c2e6dda9c0c9
[INFO] running `Command { std: "docker" "start" "-a" "81f01b1e0b634165e0549a3f1aec4cb5761dcbda9ebf96c25a14c2e6dda9c0c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81f01b1e0b634165e0549a3f1aec4cb5761dcbda9ebf96c25a14c2e6dda9c0c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f01b1e0b634165e0549a3f1aec4cb5761dcbda9ebf96c25a14c2e6dda9c0c9", kill_on_drop: false }`
[INFO] [stdout] 81f01b1e0b634165e0549a3f1aec4cb5761dcbda9ebf96c25a14c2e6dda9c0c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b2e252bcf95255fc5e7f11b81c2186e0884a8c4aab21cb263d7e6a5a7f68d71f
[INFO] running `Command { std: "docker" "start" "-a" "b2e252bcf95255fc5e7f11b81c2186e0884a8c4aab21cb263d7e6a5a7f68d71f", kill_on_drop: false }`
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling config-file v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |     let mut token_as_str: &str = &(token.replace(",", "").clone())[..];
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `Command { std: "docker" "inspect" "b2e252bcf95255fc5e7f11b81c2186e0884a8c4aab21cb263d7e6a5a7f68d71f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2e252bcf95255fc5e7f11b81c2186e0884a8c4aab21cb263d7e6a5a7f68d71f", kill_on_drop: false }`
[INFO] [stdout] b2e252bcf95255fc5e7f11b81c2186e0884a8c4aab21cb263d7e6a5a7f68d71f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 979134791b58bf65c19c866577f96244033cc56ac22bb9aa51e9f4a4e9956161
[INFO] running `Command { std: "docker" "start" "-a" "979134791b58bf65c19c866577f96244033cc56ac22bb9aa51e9f4a4e9956161", kill_on_drop: false }`
[INFO] [stderr]    Compiling config-file v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |     let mut token_as_str: &str = &(token.replace(",", "").clone())[..];
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "979134791b58bf65c19c866577f96244033cc56ac22bb9aa51e9f4a4e9956161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979134791b58bf65c19c866577f96244033cc56ac22bb9aa51e9f4a4e9956161", kill_on_drop: false }`
[INFO] [stdout] 979134791b58bf65c19c866577f96244033cc56ac22bb9aa51e9f4a4e9956161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 71b480e4b06967e75a797efdef8b34736235bd3c854658adf226b64a905c4dee
[INFO] running `Command { std: "docker" "start" "-a" "71b480e4b06967e75a797efdef8b34736235bd3c854658adf226b64a905c4dee", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:421:9
[INFO] [stderr]     |
[INFO] [stderr] 421 |     let mut token_as_str: &str = &(token.replace(",", "").clone())[..];
[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: `config-file` (bin "config-file" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/config_file-072221a1a6b1ba1a)
[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" "71b480e4b06967e75a797efdef8b34736235bd3c854658adf226b64a905c4dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b480e4b06967e75a797efdef8b34736235bd3c854658adf226b64a905c4dee", kill_on_drop: false }`
[INFO] [stdout] 71b480e4b06967e75a797efdef8b34736235bd3c854658adf226b64a905c4dee