[INFO] cloning repository https://github.com/grufwub/rusty-shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grufwub/rusty-shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrufwub%2Frusty-shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrufwub%2Frusty-shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e1c70ae1832d2e5780461e7465a62eaa4901316
[INFO] checking grufwub/rusty-shell against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrufwub%2Frusty-shell" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grufwub/rusty-shell on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grufwub/rusty-shell
[INFO] finished tweaking git repo https://github.com/grufwub/rusty-shell
[INFO] tweaked toml for git repo https://github.com/grufwub/rusty-shell written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/grufwub/rusty-shell already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4744c119c157d33aead43add693ec47b543e1cd09f77954c2113c63c8ebc98ed
[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" "4744c119c157d33aead43add693ec47b543e1cd09f77954c2113c63c8ebc98ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4744c119c157d33aead43add693ec47b543e1cd09f77954c2113c63c8ebc98ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4744c119c157d33aead43add693ec47b543e1cd09f77954c2113c63c8ebc98ed", kill_on_drop: false }`
[INFO] [stdout] 4744c119c157d33aead43add693ec47b543e1cd09f77954c2113c63c8ebc98ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--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] 3269dbbe0f55f2ad5563c64f2e7503d0d97ce29f98b482a1a910e91c95951393
[INFO] running `Command { std: "docker" "start" "-a" "3269dbbe0f55f2ad5563c64f2e7503d0d97ce29f98b482a1a910e91c95951393", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/env.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn set(&mut self, key: &str, value: &str) {
[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: `set_pid`
[INFO] [stdout]   --> src/env.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn set_pid(&mut self, pid: i32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/error.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn from_str(msg: &str) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `boxed_from_str`
[INFO] [stdout]   --> src/error.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn boxed_from_str(msg: &str) -> Box<Self> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BUILTIN_ALIAS`
[INFO] [stdout]   --> src/shell.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | const BUILTIN_ALIAS: &str = "alias";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BUILTIN_HELP`
[INFO] [stdout]   --> src/shell.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const BUILTIN_HELP: &str = "";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BUILTIN_TYPE`
[INFO] [stdout]   --> src/shell.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | const BUILTIN_TYPE: &str = "";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FAILED_CONTROL_CODE`
[INFO] [stdout]   --> src/shell.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | const FAILED_CONTROL_CODE: &str = "\x1b";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `execute_command_background`
[INFO] [stdout]   --> src/shell.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn execute_command_background(cmd: &mut process::Command) -> ResultErr<process::Child> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_str`
[INFO] [stdout]   --> src/token.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn push_str(&mut self, s: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/env.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn set(&mut self, key: &str, value: &str) {
[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: `set_pid`
[INFO] [stdout]   --> src/env.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn set_pid(&mut self, pid: i32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/error.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn from_str(msg: &str) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `boxed_from_str`
[INFO] [stdout]   --> src/error.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn boxed_from_str(msg: &str) -> Box<Self> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BUILTIN_ALIAS`
[INFO] [stdout]   --> src/shell.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | const BUILTIN_ALIAS: &str = "alias";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BUILTIN_HELP`
[INFO] [stdout]   --> src/shell.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const BUILTIN_HELP: &str = "";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BUILTIN_TYPE`
[INFO] [stdout]   --> src/shell.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | const BUILTIN_TYPE: &str = "";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FAILED_CONTROL_CODE`
[INFO] [stdout]   --> src/shell.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | const FAILED_CONTROL_CODE: &str = "\x1b";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `execute_command_background`
[INFO] [stdout]   --> src/shell.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn execute_command_background(cmd: &mut process::Command) -> ResultErr<process::Child> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_str`
[INFO] [stdout]   --> src/token.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn push_str(&mut self, s: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "3269dbbe0f55f2ad5563c64f2e7503d0d97ce29f98b482a1a910e91c95951393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3269dbbe0f55f2ad5563c64f2e7503d0d97ce29f98b482a1a910e91c95951393", kill_on_drop: false }`
[INFO] [stdout] 3269dbbe0f55f2ad5563c64f2e7503d0d97ce29f98b482a1a910e91c95951393