[INFO] fetching crate voile 0.2.6...
[INFO] checking voile-0.2.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate voile 0.2.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate voile 0.2.6
[INFO] finished tweaking crates.io crate voile 0.2.6
[INFO] tweaked toml for crates.io crate voile 0.2.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate voile 0.2.6 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 voile 0.2.6 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6a1ff8bd0419ed0ebf3f00242b2f7a0fd63d98eb3b68b30437b749fcfc833df1
[INFO] running `Command { std: "docker" "start" "-a" "6a1ff8bd0419ed0ebf3f00242b2f7a0fd63d98eb3b68b30437b749fcfc833df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a1ff8bd0419ed0ebf3f00242b2f7a0fd63d98eb3b68b30437b749fcfc833df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a1ff8bd0419ed0ebf3f00242b2f7a0fd63d98eb3b68b30437b749fcfc833df1", kill_on_drop: false }`
[INFO] [stdout] 6a1ff8bd0419ed0ebf3f00242b2f7a0fd63d98eb3b68b30437b749fcfc833df1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bf426f47795d176a8e92339819e511b4f578722f2fdfae0340e2b920c897d452
[INFO] running `Command { std: "docker" "start" "-a" "bf426f47795d176a8e92339819e511b4f578722f2fdfae0340e2b920c897d452", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking rustyline v6.3.0
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking voile-util v0.2.2
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]     Checking minitt-util v0.2.4
[INFO] [stderr]     Checking voile v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::ast_cons::*`
[INFO] [stdout]  --> src/syntax/core/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use self::ast_cons::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::pretty::*`
[INFO] [stdout]  --> src/syntax/core/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::pretty::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::pretty::*`
[INFO] [stdout]  --> src/syntax/abs/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::pretty::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::expr::*`
[INFO] [stdout]  --> src/check/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::expr::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::unify::*`
[INFO] [stdout]  --> src/check/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use self::unify::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::ast_cons::*`
[INFO] [stdout]  --> src/syntax/core/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use self::ast_cons::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::pretty::*`
[INFO] [stdout]  --> src/syntax/core/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::pretty::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::pretty::*`
[INFO] [stdout]  --> src/syntax/abs/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::pretty::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::expr::*`
[INFO] [stdout]  --> src/check/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::expr::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::unify::*`
[INFO] [stdout]  --> src/check/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use self::unify::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/cli/repl.rs:191:76
[INFO] [stdout]     |
[INFO] [stdout] 191 |            Issue tracker: https://github.com/owo-lang/voile-rs/issues/new\n\n\
[INFO] [stdout]     |  ____________________________________________________________________________^
[INFO] [stdout] 192 | |
[INFO] [stdout] 193 | |          The REPL has two modes: the RICH mode and the PLAIN mode.\n\
[INFO] [stdout]     | |_________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/cli/repl.rs:191:76
[INFO] [stdout]     |
[INFO] [stdout] 191 |            Issue tracker: https://github.com/owo-lang/voile-rs/issues/new\n\n\
[INFO] [stdout]     |  ____________________________________________________________________________^
[INFO] [stdout] 192 | |
[INFO] [stdout] 193 | |          The REPL has two modes: the RICH mode and the PLAIN mode.\n\
[INFO] [stdout]     | |_________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli/args.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// the input file to type-check (Notice: file should be UTF-8 encoded)
[INFO] [stdout] 13 | |     #[structopt(name = "FILE")]
[INFO] [stdout] 14 | |     pub file: Option<String>,
[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/cli/args.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// Evaluates a standalone expression
[INFO] [stdout] 33 | |     #[structopt(short = "e", long, name = "expression")]
[INFO] [stdout] 34 | |     pub evaluate: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `voile` (bin "voilec") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli/args.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// the input file to type-check (Notice: file should be UTF-8 encoded)
[INFO] [stdout] 13 | |     #[structopt(name = "FILE")]
[INFO] [stdout] 14 | |     pub file: Option<String>,
[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/cli/args.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// Evaluates a standalone expression
[INFO] [stdout] 33 | |     #[structopt(short = "e", long, name = "expression")]
[INFO] [stdout] 34 | |     pub evaluate: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `voile` (bin "voilec" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "bf426f47795d176a8e92339819e511b4f578722f2fdfae0340e2b920c897d452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf426f47795d176a8e92339819e511b4f578722f2fdfae0340e2b920c897d452", kill_on_drop: false }`
[INFO] [stdout] bf426f47795d176a8e92339819e511b4f578722f2fdfae0340e2b920c897d452
