[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] testing grufwub/rusty-shell against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrufwub%2Frusty-shell" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grufwub/rusty-shell on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-14/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 879c6ae4c6d04f052108d0d9fc7753e8f6ec4bc10652cb3adf74bc84a55f1707
[INFO] running `Command { std: "docker" "start" "-a" "879c6ae4c6d04f052108d0d9fc7753e8f6ec4bc10652cb3adf74bc84a55f1707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "879c6ae4c6d04f052108d0d9fc7753e8f6ec4bc10652cb3adf74bc84a55f1707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879c6ae4c6d04f052108d0d9fc7753e8f6ec4bc10652cb3adf74bc84a55f1707", kill_on_drop: false }`
[INFO] [stdout] 879c6ae4c6d04f052108d0d9fc7753e8f6ec4bc10652cb3adf74bc84a55f1707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0452e2ff33a3c1b8b55f2c7f60871ef85eede8767143ed9f98c7baeab128e05
[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" "b0452e2ff33a3c1b8b55f2c7f60871ef85eede8767143ed9f98c7baeab128e05", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "b0452e2ff33a3c1b8b55f2c7f60871ef85eede8767143ed9f98c7baeab128e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0452e2ff33a3c1b8b55f2c7f60871ef85eede8767143ed9f98c7baeab128e05", kill_on_drop: false }`
[INFO] [stdout] b0452e2ff33a3c1b8b55f2c7f60871ef85eede8767143ed9f98c7baeab128e05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e8b4a275290243f9bc6a29bbff57d168c34d01f56aab25d1af6d4cc0ef6b288
[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" "8e8b4a275290243f9bc6a29bbff57d168c34d01f56aab25d1af6d4cc0ef6b288", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "8e8b4a275290243f9bc6a29bbff57d168c34d01f56aab25d1af6d4cc0ef6b288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e8b4a275290243f9bc6a29bbff57d168c34d01f56aab25d1af6d4cc0ef6b288", kill_on_drop: false }`
[INFO] [stdout] 8e8b4a275290243f9bc6a29bbff57d168c34d01f56aab25d1af6d4cc0ef6b288
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 97feb402448adab026b3d89066868f2875bdae019364f6bb7f497d482473b580
[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" "97feb402448adab026b3d89066868f2875bdae019364f6bb7f497d482473b580", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `set`
[INFO] [stderr]   --> src/env.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn set(&mut self, key: &str, value: &str) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_pid`
[INFO] [stderr]   --> src/env.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn set_pid(&mut self, pid: i32) {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_str`
[INFO] [stderr]   --> src/error.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn from_str(msg: &str) -> Self {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `boxed_from_str`
[INFO] [stderr]   --> src/error.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn boxed_from_str(msg: &str) -> Box<Self> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BUILTIN_ALIAS`
[INFO] [stderr]   --> src/shell.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | const BUILTIN_ALIAS: &str = "alias";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BUILTIN_HELP`
[INFO] [stderr]   --> src/shell.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | const BUILTIN_HELP: &str = "";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BUILTIN_TYPE`
[INFO] [stderr]   --> src/shell.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | const BUILTIN_TYPE: &str = "";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `FAILED_CONTROL_CODE`
[INFO] [stderr]   --> src/shell.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | const FAILED_CONTROL_CODE: &str = "\x1b";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `execute_command_background`
[INFO] [stderr]   --> src/shell.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn execute_command_background(cmd: &mut process::Command) -> ResultErr<process::Child> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `push_str`
[INFO] [stderr]   --> src/token.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn push_str(&mut self, s: &str) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rusty-34765d71d48ee0e1
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "97feb402448adab026b3d89066868f2875bdae019364f6bb7f497d482473b580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97feb402448adab026b3d89066868f2875bdae019364f6bb7f497d482473b580", kill_on_drop: false }`
[INFO] [stdout] 97feb402448adab026b3d89066868f2875bdae019364f6bb7f497d482473b580