[INFO] cloning repository https://github.com/MeirKriheli/rusmux
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MeirKriheli/rusmux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMeirKriheli%2Frusmux", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMeirKriheli%2Frusmux'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a67395883758b777e7ad99b8007544fb5c1ad6e
[INFO] checking MeirKriheli/rusmux against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMeirKriheli%2Frusmux" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MeirKriheli/rusmux on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MeirKriheli/rusmux
[INFO] finished tweaking git repo https://github.com/MeirKriheli/rusmux
[INFO] tweaked toml for git repo https://github.com/MeirKriheli/rusmux written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/MeirKriheli/rusmux already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a022b1b088c63eb3ee736451575c13a1ac11d7b73b3fa027d57892a27103cdc0
[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" "a022b1b088c63eb3ee736451575c13a1ac11d7b73b3fa027d57892a27103cdc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a022b1b088c63eb3ee736451575c13a1ac11d7b73b3fa027d57892a27103cdc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a022b1b088c63eb3ee736451575c13a1ac11d7b73b3fa027d57892a27103cdc0", kill_on_drop: false }`
[INFO] [stdout] a022b1b088c63eb3ee736451575c13a1ac11d7b73b3fa027d57892a27103cdc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cde0d993795e794922d0afcea386834106e02c2a3b7d6213a4f94baabef02ac
[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" "6cde0d993795e794922d0afcea386834106e02c2a3b7d6213a4f94baabef02ac", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]     Checking thiserror v1.0.11
[INFO] [stderr]     Checking serde v1.0.105
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking rusmux v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `get_shell_shebang`
[INFO] [stdout]   --> src/project.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn get_shell_shebang(&self) -> Option<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: `debug`
[INFO] [stdout]   --> src/project.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn debug(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute`
[INFO] [stdout]   --> src/project.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn execute(&self) -> Result<(), AppError> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_shell_shebang`
[INFO] [stdout]   --> src/project.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn get_shell_shebang(&self) -> Option<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: `debug`
[INFO] [stdout]   --> src/project.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn debug(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute`
[INFO] [stdout]   --> src/project.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn execute(&self) -> Result<(), AppError> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.19s
[INFO] running `Command { std: "docker" "inspect" "6cde0d993795e794922d0afcea386834106e02c2a3b7d6213a4f94baabef02ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cde0d993795e794922d0afcea386834106e02c2a3b7d6213a4f94baabef02ac", kill_on_drop: false }`
[INFO] [stdout] 6cde0d993795e794922d0afcea386834106e02c2a3b7d6213a4f94baabef02ac