[INFO] cloning repository https://github.com/duanyuluo/ccc_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duanyuluo/ccc_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduanyuluo%2Fccc_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduanyuluo%2Fccc_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f453244b082df140850e4bfd94aa735d51c11ad7
[INFO] checking duanyuluo/ccc_rust against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduanyuluo%2Fccc_rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/duanyuluo/ccc_rust on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/duanyuluo/ccc_rust
[INFO] finished tweaking git repo https://github.com/duanyuluo/ccc_rust
[INFO] tweaked toml for git repo https://github.com/duanyuluo/ccc_rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/duanyuluo/ccc_rust 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66a4e9d7e62c25b54e52cbfff196574b97b98c36633557aea665ccf8e41e16f3
[INFO] running `Command { std: "docker" "start" "-a" "66a4e9d7e62c25b54e52cbfff196574b97b98c36633557aea665ccf8e41e16f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66a4e9d7e62c25b54e52cbfff196574b97b98c36633557aea665ccf8e41e16f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66a4e9d7e62c25b54e52cbfff196574b97b98c36633557aea665ccf8e41e16f3", kill_on_drop: false }`
[INFO] [stdout] 66a4e9d7e62c25b54e52cbfff196574b97b98c36633557aea665ccf8e41e16f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b0c89a4c90ca9664d50a0b19b5cbeb8ba1432e7af829b77ee1be7813cff9892
[INFO] running `Command { std: "docker" "start" "-a" "2b0c89a4c90ca9664d50a0b19b5cbeb8ba1432e7af829b77ee1be7813cff9892", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.145
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking debug-ignore v1.0.5
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking lib v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> lib/src/cli/cmd.rs:176:25
[INFO] [stdout]     |
[INFO] [stdout] 176 |     pub fn parse(&self, args: Vec<String>) -> CmdExeArgs {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cmd`, `opns`, and `token` are never read
[INFO] [stdout]   --> lib/src/cli/cmd.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub struct CmdExeArgs<'a> {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 56 |     cmd: &'a CmdSpec<'a>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 57 |     opns: Vec<&'a OpnSepc<'a>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 58 |     token: &'a str,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmdExeArgs` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `exec_fn` is never read
[INFO] [stdout]   --> lib/src/cli/cmd.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct Command {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 70 |     exec_fn: DebugIgnore<FnCmder>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> lib/src/cli/cmd.rs:176:25
[INFO] [stdout]     |
[INFO] [stdout] 176 |     pub fn parse(&self, args: Vec<String>) -> CmdExeArgs {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ccc_lib v0.1.0 (/opt/rustwide/workdir/ccc_lib)
[INFO] [stdout] warning: fields `cmd`, `opns`, and `token` are never read
[INFO] [stdout]   --> lib/src/cli/cmd.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub struct CmdExeArgs<'a> {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 56 |     cmd: &'a CmdSpec<'a>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 57 |     opns: Vec<&'a OpnSepc<'a>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 58 |     token: &'a str,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmdExeArgs` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `exec_fn` is never read
[INFO] [stdout]   --> lib/src/cli/cmd.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct Command {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 70 |     exec_fn: DebugIgnore<FnCmder>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ccc_senior v0.1.0 (/opt/rustwide/workdir/ccc_senior)
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "2b0c89a4c90ca9664d50a0b19b5cbeb8ba1432e7af829b77ee1be7813cff9892", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0c89a4c90ca9664d50a0b19b5cbeb8ba1432e7af829b77ee1be7813cff9892", kill_on_drop: false }`
[INFO] [stdout] 2b0c89a4c90ca9664d50a0b19b5cbeb8ba1432e7af829b77ee1be7813cff9892