[INFO] fetching crate sabi 0.1.0...
[INFO] testing sabi-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate sabi 0.1.0 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate sabi 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sabi 0.1.0
[INFO] finished tweaking crates.io crate sabi 0.1.0
[INFO] tweaked toml for crates.io crate sabi 0.1.0 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 508d5637991f20d441252c9280bbf9d01a1b15ee2e6a983eeb050fc9ee5539f0
[INFO] running `Command { std: "docker" "start" "-a" "508d5637991f20d441252c9280bbf9d01a1b15ee2e6a983eeb050fc9ee5539f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "508d5637991f20d441252c9280bbf9d01a1b15ee2e6a983eeb050fc9ee5539f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "508d5637991f20d441252c9280bbf9d01a1b15ee2e6a983eeb050fc9ee5539f0", kill_on_drop: false }`
[INFO] [stdout] 508d5637991f20d441252c9280bbf9d01a1b15ee2e6a983eeb050fc9ee5539f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0b3e0624b228057aea13f4f94484b3183e52276e187637afc223fd9163dead0
[INFO] running `Command { std: "docker" "start" "-a" "d0b3e0624b228057aea13f4f94484b3183e52276e187637afc223fd9163dead0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling sabi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Stream`, `many1`, `many`, `one_of`
[INFO] [stdout]  --> src/parser/bytecode.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 |     choice, eof, many, many1, one_of, optional, r#try, token, ParseError, Parser,
[INFO] [stdout]   |                  ^^^^  ^^^^^  ^^^^^^
[INFO] [stdout] 4 |     RangeStream, Stream,
[INFO] [stdout]   |                  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |     output: Box<io::Write + 'a>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm.rs:114:28
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn new(output: Box<io::Write + 'a>) -> Self {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/vm.rs:201:10
[INFO] [stdout]     |
[INFO] [stdout] 201 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `combine::r#try`: try is a reserved keyword in Rust 2018. Use attempt instead.
[INFO] [stdout]  --> src/parser/bytecode.rs:3:49
[INFO] [stdout]   |
[INFO] [stdout] 3 |     choice, eof, many, many1, one_of, optional, r#try, token, ParseError, Parser,
[INFO] [stdout]   |                                                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `combine::r#try`: try is a reserved keyword in Rust 2018. Use attempt instead.
[INFO] [stdout]   --> src/parser/bytecode.rs:50:25
[INFO] [stdout]    |
[INFO] [stdout] 50 |         label: optional(r#try(word().skip(single(':')))),
[INFO] [stdout]    |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `combine::r#try`: try is a reserved keyword in Rust 2018. Use attempt instead.
[INFO] [stdout]   --> src/parser/bytecode.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |         arg: optional(r#try(argument)),
[INFO] [stdout]    |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser/bytecode.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn new(label: Option<&'a str>, instr: &'a str, arg: Option<Arg<'a>>) -> Self {
[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: `peek`
[INFO] [stdout]    --> src/vm.rs:248:12
[INFO] [stdout]     |
[INFO] [stdout] 248 |     pub fn peek(&self) -> isize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/vm.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         writeln!(f, "code:");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/vm.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             write!(f, "{:04x}: {:?}", i, op);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/vm.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 write!(f, " {:?}", num);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 write!(f, " <");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |             writeln!(f, "");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         writeln!(f, "code_ptr: {:04x}", self.code_ptr);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:292:17
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 writeln!(self.output, "{}", val);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:347:21
[INFO] [stdout]     |
[INFO] [stdout] 347 |                     io::stdin().read_line(&mut input);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.45s
[INFO] running `Command { std: "docker" "inspect" "d0b3e0624b228057aea13f4f94484b3183e52276e187637afc223fd9163dead0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b3e0624b228057aea13f4f94484b3183e52276e187637afc223fd9163dead0", kill_on_drop: false }`
[INFO] [stdout] d0b3e0624b228057aea13f4f94484b3183e52276e187637afc223fd9163dead0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d32dbbccdf1ea24d641470a5188fcd08deb5f678c541412944f76910e3155fa8
[INFO] running `Command { std: "docker" "start" "-a" "d32dbbccdf1ea24d641470a5188fcd08deb5f678c541412944f76910e3155fa8", kill_on_drop: false }`
[INFO] [stderr]    Compiling sabi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Stream`, `many1`, `many`, `one_of`
[INFO] [stdout]  --> src/parser/bytecode.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 |     choice, eof, many, many1, one_of, optional, r#try, token, ParseError, Parser,
[INFO] [stdout]   |                  ^^^^  ^^^^^  ^^^^^^
[INFO] [stdout] 4 |     RangeStream, Stream,
[INFO] [stdout]   |                  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |     output: Box<io::Write + 'a>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm.rs:114:28
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn new(output: Box<io::Write + 'a>) -> Self {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/vm.rs:201:10
[INFO] [stdout]     |
[INFO] [stdout] 201 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `combine::r#try`: try is a reserved keyword in Rust 2018. Use attempt instead.
[INFO] [stdout]  --> src/parser/bytecode.rs:3:49
[INFO] [stdout]   |
[INFO] [stdout] 3 |     choice, eof, many, many1, one_of, optional, r#try, token, ParseError, Parser,
[INFO] [stdout]   |                                                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `combine::r#try`: try is a reserved keyword in Rust 2018. Use attempt instead.
[INFO] [stdout]   --> src/parser/bytecode.rs:50:25
[INFO] [stdout]    |
[INFO] [stdout] 50 |         label: optional(r#try(word().skip(single(':')))),
[INFO] [stdout]    |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `combine::r#try`: try is a reserved keyword in Rust 2018. Use attempt instead.
[INFO] [stdout]   --> src/parser/bytecode.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |         arg: optional(r#try(argument)),
[INFO] [stdout]    |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek`
[INFO] [stdout]    --> src/vm.rs:248:12
[INFO] [stdout]     |
[INFO] [stdout] 248 |     pub fn peek(&self) -> isize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/vm.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         writeln!(f, "code:");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/vm.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             write!(f, "{:04x}: {:?}", i, op);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/vm.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 write!(f, " {:?}", num);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 write!(f, " <");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |             writeln!(f, "");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         writeln!(f, "code_ptr: {:04x}", self.code_ptr);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:292:17
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 writeln!(self.output, "{}", val);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm.rs:347:21
[INFO] [stdout]     |
[INFO] [stdout] 347 |                     io::stdin().read_line(&mut input);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.09s
[INFO] running `Command { std: "docker" "inspect" "d32dbbccdf1ea24d641470a5188fcd08deb5f678c541412944f76910e3155fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d32dbbccdf1ea24d641470a5188fcd08deb5f678c541412944f76910e3155fa8", kill_on_drop: false }`
[INFO] [stdout] d32dbbccdf1ea24d641470a5188fcd08deb5f678c541412944f76910e3155fa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f668478d0b9a4dca4afee77b78aaa023f8fb1ae47b1d989a3bc9381ec5d2aed
[INFO] running `Command { std: "docker" "start" "-a" "6f668478d0b9a4dca4afee77b78aaa023f8fb1ae47b1d989a3bc9381ec5d2aed", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Stream`, `many1`, `many`, `one_of`
[INFO] [stderr]  --> src/parser/bytecode.rs:3:18
[INFO] [stderr]   |
[INFO] [stderr] 3 |     choice, eof, many, many1, one_of, optional, r#try, token, ParseError, Parser,
[INFO] [stderr]   |                  ^^^^  ^^^^^  ^^^^^^
[INFO] [stderr] 4 |     RangeStream, Stream,
[INFO] [stderr]   |                  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm.rs:69:17
[INFO] [stderr]    |
[INFO] [stderr] 69 |     output: Box<io::Write + 'a>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/vm.rs:114:28
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn new(output: Box<io::Write + 'a>) -> Self {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/vm.rs:201:10
[INFO] [stderr]     |
[INFO] [stderr] 201 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/main.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::{self, Read};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `combine::r#try`: try is a reserved keyword in Rust 2018. Use attempt instead.
[INFO] [stderr]  --> src/parser/bytecode.rs:3:49
[INFO] [stderr]   |
[INFO] [stderr] 3 |     choice, eof, many, many1, one_of, optional, r#try, token, ParseError, Parser,
[INFO] [stderr]   |                                                 ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `combine::r#try`: try is a reserved keyword in Rust 2018. Use attempt instead.
[INFO] [stderr]   --> src/parser/bytecode.rs:50:25
[INFO] [stderr]    |
[INFO] [stderr] 50 |         label: optional(r#try(word().skip(single(':')))),
[INFO] [stderr]    |                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `combine::r#try`: try is a reserved keyword in Rust 2018. Use attempt instead.
[INFO] [stderr]   --> src/parser/bytecode.rs:52:23
[INFO] [stderr]    |
[INFO] [stderr] 52 |         arg: optional(r#try(argument)),
[INFO] [stderr]    |                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `peek`
[INFO] [stderr]    --> src/vm.rs:248:12
[INFO] [stderr]     |
[INFO] [stderr] 248 |     pub fn peek(&self) -> isize {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/vm.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |         writeln!(f, "code:");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/vm.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 |             write!(f, "{:04x}: {:?}", i, op);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/vm.rs:98:17
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 write!(f, " {:?}", num);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/vm.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 write!(f, " <");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/vm.rs:104:13
[INFO] [stderr]     |
[INFO] [stderr] 104 |             writeln!(f, "");
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/vm.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         writeln!(f, "code_ptr: {:04x}", self.code_ptr);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/vm.rs:292:17
[INFO] [stderr]     |
[INFO] [stderr] 292 |                 writeln!(self.output, "{}", val);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/vm.rs:347:21
[INFO] [stderr]     |
[INFO] [stderr] 347 |                     io::stdin().read_line(&mut input);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `sabi` (bin "sabi" test) generated 17 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sabi-d50676fdf75587bc)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test parser::bytecode::tests::instr_test_basic ... ok
[INFO] [stdout] test vm::tests::label_if_test ... ok
[INFO] [stdout] test vm::tests::test_add ... ok
[INFO] [stdout] test vm::tests::test_copy ... ok
[INFO] [stdout] test vm::tests::test_div ... ok
[INFO] [stdout] test vm::tests::test_mul ... ok
[INFO] [stdout] test vm::tests::test_leq ... ok
[INFO] [stdout] test vm::tests::test_pop ... ok
[INFO] [stdout] test vm::tests::test_neg ... ok
[INFO] [stdout] test vm::tests::test_push ... ok
[INFO] [stdout] test vm::tests::sqrt_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6f668478d0b9a4dca4afee77b78aaa023f8fb1ae47b1d989a3bc9381ec5d2aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f668478d0b9a4dca4afee77b78aaa023f8fb1ae47b1d989a3bc9381ec5d2aed", kill_on_drop: false }`
[INFO] [stdout] 6f668478d0b9a4dca4afee77b78aaa023f8fb1ae47b1d989a3bc9381ec5d2aed
