[INFO] fetching crate rush-shell 0.1.1...
[INFO] checking rush-shell-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rush-shell 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rush-shell 0.1.1
[INFO] finished tweaking crates.io crate rush-shell 0.1.1
[INFO] tweaked toml for crates.io crate rush-shell 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rush-shell 0.1.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rush-shell 0.1.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7210f11e573df01c3ec3ad15f6f26013eafe763cf504aef91df67e31e2420f0f
[INFO] running `Command { std: "docker" "start" "-a" "7210f11e573df01c3ec3ad15f6f26013eafe763cf504aef91df67e31e2420f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7210f11e573df01c3ec3ad15f6f26013eafe763cf504aef91df67e31e2420f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7210f11e573df01c3ec3ad15f6f26013eafe763cf504aef91df67e31e2420f0f", kill_on_drop: false }`
[INFO] [stdout] 7210f11e573df01c3ec3ad15f6f26013eafe763cf504aef91df67e31e2420f0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd2464a4db96bc54cad4b050c6c62afa0b5617fc460ca208363ec9f981d93d37
[INFO] running `Command { std: "docker" "start" "-a" "cd2464a4db96bc54cad4b050c6c62afa0b5617fc460ca208363ec9f981d93d37", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking rush-shell v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `OBJECT_IN_FILE_NUMBER` is never used
[INFO] [stdout]   --> src/io.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const OBJECT_IN_FILE_NUMBER: i32 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OBJECT_OUT_FILE_NUMBER` is never used
[INFO] [stdout]   --> src/io.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const OBJECT_OUT_FILE_NUMBER: i32 = 4;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OBJECT_ERR_FILE_NUMBER` is never used
[INFO] [stdout]   --> src/io.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const OBJECT_ERR_FILE_NUMBER: i32 = 5;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ObjectRead` is never used
[INFO] [stdout]   --> src/io.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub trait ObjectRead<T> {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ObjectWrite` is never used
[INFO] [stdout]   --> src/io.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub trait ObjectWrite<T> {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_stdin` and `is_script` are never used
[INFO] [stdout]   --> src/io.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Input {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn is_stdin(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn is_script(&self) -> bool { !self.is_stdin() }
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     script_file: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     script_args: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rush-shell` (bin "rush") due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: constant `OBJECT_IN_FILE_NUMBER` is never used
[INFO] [stdout]   --> src/io.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const OBJECT_IN_FILE_NUMBER: i32 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OBJECT_OUT_FILE_NUMBER` is never used
[INFO] [stdout]   --> src/io.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const OBJECT_OUT_FILE_NUMBER: i32 = 4;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OBJECT_ERR_FILE_NUMBER` is never used
[INFO] [stdout]   --> src/io.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const OBJECT_ERR_FILE_NUMBER: i32 = 5;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ObjectRead` is never used
[INFO] [stdout]   --> src/io.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub trait ObjectRead<T> {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ObjectWrite` is never used
[INFO] [stdout]   --> src/io.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub trait ObjectWrite<T> {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_stdin` and `is_script` are never used
[INFO] [stdout]   --> src/io.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Input {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn is_stdin(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn is_script(&self) -> bool { !self.is_stdin() }
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     script_file: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     script_args: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rush-shell` (bin "rush" test) due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cd2464a4db96bc54cad4b050c6c62afa0b5617fc460ca208363ec9f981d93d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd2464a4db96bc54cad4b050c6c62afa0b5617fc460ca208363ec9f981d93d37", kill_on_drop: false }`
[INFO] [stdout] cd2464a4db96bc54cad4b050c6c62afa0b5617fc460ca208363ec9f981d93d37
