[INFO] cloning repository https://github.com/stephenglynch/RustyBox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stephenglynch/RustyBox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenglynch%2FRustyBox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenglynch%2FRustyBox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 189234751e08a2223ca1d0145593c5839a13e276
[INFO] checking stephenglynch/RustyBox against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenglynch%2FRustyBox" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stephenglynch/RustyBox 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/stephenglynch/RustyBox
[INFO] finished tweaking git repo https://github.com/stephenglynch/RustyBox
[INFO] tweaked toml for git repo https://github.com/stephenglynch/RustyBox written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/stephenglynch/RustyBox 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_cmd v2.0.11
[INFO] [stderr]   Downloaded anstyle v1.0.0
[INFO] [stderr]   Downloaded predicates v3.0.3
[INFO] [stderr]   Downloaded stderrlog v0.5.4
[INFO] [stderr]   Downloaded bumpalo v3.12.1
[INFO] [stderr]   Downloaded serde v1.0.160
[INFO] [stderr]   Downloaded regex v1.8.1
[INFO] [stderr]   Downloaded syn v2.0.15
[INFO] [stderr]   Downloaded regex-syntax v0.7.1
[INFO] [stderr]   Downloaded bstr v1.4.0
[INFO] [stderr]   Downloaded libc v0.2.142
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 268a8d77738d1bfa1b44e3852bd73edf339350aaf8db84f2a4d49f086548afc2
[INFO] running `Command { std: "docker" "start" "-a" "268a8d77738d1bfa1b44e3852bd73edf339350aaf8db84f2a4d49f086548afc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "268a8d77738d1bfa1b44e3852bd73edf339350aaf8db84f2a4d49f086548afc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "268a8d77738d1bfa1b44e3852bd73edf339350aaf8db84f2a4d49f086548afc2", kill_on_drop: false }`
[INFO] [stdout] 268a8d77738d1bfa1b44e3852bd73edf339350aaf8db84f2a4d49f086548afc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4b6e87e1ed94b2c5990762d14ecb0949626174b7dd5b258879ab55b520f9f1fe
[INFO] running `Command { std: "docker" "start" "-a" "4b6e87e1ed94b2c5990762d14ecb0949626174b7dd5b258879ab55b520f9f1fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking bstr v1.4.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking predicates v3.0.3
[INFO] [stderr]     Checking assert_cmd v2.0.11
[INFO] [stderr]     Checking stderrlog v0.5.4
[INFO] [stderr]     Checking rustybox v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/test_sh.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             drop(child_stdin);
[INFO] [stdout]    |             ^^^^^-----------^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&mut ChildStdin`
[INFO] [stdout] ...
[INFO] [stdout] 31 | check_output!(sh_echo1, "echo", "fooword", "fooword\n");
[INFO] [stdout]    | ------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `check_output` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 20 -             drop(child_stdin);
[INFO] [stdout] 20 +             let _ = child_stdin;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/test_sh.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             drop(child_stdin);
[INFO] [stdout]    |             ^^^^^-----------^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&mut ChildStdin`
[INFO] [stdout] ...
[INFO] [stdout] 33 | check_output!(sh_echo2, "echo", "foo word", "foo word\n");
[INFO] [stdout]    | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `check_output` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 20 -             drop(child_stdin);
[INFO] [stdout] 20 +             let _ = child_stdin;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expandable` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Expandable {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `expand` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Expandable {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 19 |     fn expand(self, ev: ExecEnv) -> Option<Vec<u8>> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expandable` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn expandable<'a>(input: &'a [u8]) -> RbResult<&'a [u8], Expandable> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn text<'a>(input: &'a [u8]) -> RbResult<&'a [u8], Expandable> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variable` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn variable<'a>(input: &'a [u8]) -> RbResult<&'a [u8], Expandable> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expandable` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Expandable {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `expand` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Expandable {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 19 |     fn expand(self, ev: ExecEnv) -> Option<Vec<u8>> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expandable` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn expandable<'a>(input: &'a [u8]) -> RbResult<&'a [u8], Expandable> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn text<'a>(input: &'a [u8]) -> RbResult<&'a [u8], Expandable> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variable` is never used
[INFO] [stdout]   --> src/utils/sh/expansions.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn variable<'a>(input: &'a [u8]) -> RbResult<&'a [u8], Expandable> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.25s
[INFO] running `Command { std: "docker" "inspect" "4b6e87e1ed94b2c5990762d14ecb0949626174b7dd5b258879ab55b520f9f1fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6e87e1ed94b2c5990762d14ecb0949626174b7dd5b258879ab55b520f9f1fe", kill_on_drop: false }`
[INFO] [stdout] 4b6e87e1ed94b2c5990762d14ecb0949626174b7dd5b258879ab55b520f9f1fe