[INFO] fetching crate sabi 0.1.0...
[INFO] testing sabi-0.1.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate sabi 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate sabi 0.1.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cdbc7485a74bdaeed87c9444354afcfd0f96b297d6d1a10139d45b672deb66a
[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" "6cdbc7485a74bdaeed87c9444354afcfd0f96b297d6d1a10139d45b672deb66a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cdbc7485a74bdaeed87c9444354afcfd0f96b297d6d1a10139d45b672deb66a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cdbc7485a74bdaeed87c9444354afcfd0f96b297d6d1a10139d45b672deb66a", kill_on_drop: false }`
[INFO] [stdout] 6cdbc7485a74bdaeed87c9444354afcfd0f96b297d6d1a10139d45b672deb66a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b97084f7199f40384ec1c747a4a6359f5fa951d7b1dcc7e90d4d2b0f0c7b4d64
[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" "b97084f7199f40384ec1c747a4a6359f5fa951d7b1dcc7e90d4d2b0f0c7b4d64", kill_on_drop: false }`
[INFO] [stderr]    Compiling combine v3.8.1
[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] 
[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] 
[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 `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 dev [unoptimized + debuginfo] target(s) in 16.96s
[INFO] running `Command { std: "docker" "inspect" "b97084f7199f40384ec1c747a4a6359f5fa951d7b1dcc7e90d4d2b0f0c7b4d64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b97084f7199f40384ec1c747a4a6359f5fa951d7b1dcc7e90d4d2b0f0c7b4d64", kill_on_drop: false }`
[INFO] [stdout] b97084f7199f40384ec1c747a4a6359f5fa951d7b1dcc7e90d4d2b0f0c7b4d64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f32705af6dadbe627d568b9b3bd13322e71a7b02a8735cfea9c6b143471d981e
[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" "f32705af6dadbe627d568b9b3bd13322e71a7b02a8735cfea9c6b143471d981e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 
[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] 
[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 `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::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: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.24s
[INFO] running `Command { std: "docker" "inspect" "f32705af6dadbe627d568b9b3bd13322e71a7b02a8735cfea9c6b143471d981e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32705af6dadbe627d568b9b3bd13322e71a7b02a8735cfea9c6b143471d981e", kill_on_drop: false }`
[INFO] [stdout] f32705af6dadbe627d568b9b3bd13322e71a7b02a8735cfea9c6b143471d981e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1c441f20e2060423fcdb86657e7ab2fd63c62d69b136f45e5021615432e04452
[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" "1c441f20e2060423fcdb86657e7ab2fd63c62d69b136f45e5021615432e04452", 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] 
[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: 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 `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::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: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sabi-d0a16c96192471e6
[INFO] [stdout] running 11 tests
[INFO] [stdout] test vm::tests::test_push ... ok
[INFO] [stdout] test vm::tests::test_pop ... ok
[INFO] [stdout] test vm::tests::test_add ... ok
[INFO] [stdout] test vm::tests::test_neg ... ok
[INFO] [stdout] test vm::tests::test_copy ... ok
[INFO] [stdout] test vm::tests::test_mul ... ok
[INFO] [stdout] test vm::tests::test_leq ... ok
[INFO] [stdout] test vm::tests::test_div ... ok
[INFO] [stdout] test vm::tests::label_if_test ... ok
[INFO] [stdout] test parser::bytecode::tests::instr_test_basic ... 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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1c441f20e2060423fcdb86657e7ab2fd63c62d69b136f45e5021615432e04452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c441f20e2060423fcdb86657e7ab2fd63c62d69b136f45e5021615432e04452", kill_on_drop: false }`
[INFO] [stdout] 1c441f20e2060423fcdb86657e7ab2fd63c62d69b136f45e5021615432e04452
