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[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheDan64%2Flimonite" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/TheDan64/limonite on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
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[INFO] finished tweaking git repo https://github.com/TheDan64/limonite
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[INFO] crate git repo https://github.com/TheDan64/limonite already has a lockfile, it will not be regenerated
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[INFO] [stderr]     Checking limonite v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/lexical/lexer.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/syntax/parser.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_pass_manager` is never read
[INFO] [stdout]    --> src/codegen/llvm/mod.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 763 | pub struct JitEngine<'codegen, 'context: 'codegen> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 767 |     fn_pass_manager: PassManager<FunctionValue<'context>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const GREEN_FG: &str = "\x1B[38;5;2m";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `YELLOW_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const YELLOW_FG: &str = "\x1B[38;5;3m";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGENTA_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const MAGENTA_FG: &str = "\x1B[38;5;5m";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_BLUE_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LIGHT_BLUE_FG: &str = "\x1B[38;5;6m";
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DARK_GRAY_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const DARK_GRAY_FG: &str = "\x1B[38;5;8m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_RED_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LIGHT_RED_FG: &str = "\x1B[38;5;9m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/lexical/lexer.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/syntax/parser.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.2
[INFO] [stdout] warning: field `fn_pass_manager` is never read
[INFO] [stdout]    --> src/codegen/llvm/mod.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 763 | pub struct JitEngine<'codegen, 'context: 'codegen> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 767 |     fn_pass_manager: PassManager<FunctionValue<'context>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const GREEN_FG: &str = "\x1B[38;5;2m";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `YELLOW_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const YELLOW_FG: &str = "\x1B[38;5;3m";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGENTA_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const MAGENTA_FG: &str = "\x1B[38;5;5m";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_BLUE_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LIGHT_BLUE_FG: &str = "\x1B[38;5;6m";
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DARK_GRAY_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const DARK_GRAY_FG: &str = "\x1B[38;5;8m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_RED_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LIGHT_RED_FG: &str = "\x1B[38;5;9m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/lexical/lexer.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/syntax/parser.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/lexical/lexer.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/syntax/parser.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_pass_manager` is never read
[INFO] [stdout]    --> src/codegen/llvm/mod.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 763 | pub struct JitEngine<'codegen, 'context: 'codegen> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 767 |     fn_pass_manager: PassManager<FunctionValue<'context>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const GREEN_FG: &str = "\x1B[38;5;2m";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `YELLOW_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const YELLOW_FG: &str = "\x1B[38;5;3m";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGENTA_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const MAGENTA_FG: &str = "\x1B[38;5;5m";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_BLUE_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LIGHT_BLUE_FG: &str = "\x1B[38;5;6m";
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DARK_GRAY_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const DARK_GRAY_FG: &str = "\x1B[38;5;8m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_RED_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LIGHT_RED_FG: &str = "\x1B[38;5;9m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_pass_manager` is never read
[INFO] [stdout]    --> src/codegen/llvm/mod.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 763 | pub struct JitEngine<'codegen, 'context: 'codegen> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 767 |     fn_pass_manager: PassManager<FunctionValue<'context>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const GREEN_FG: &str = "\x1B[38;5;2m";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `YELLOW_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const YELLOW_FG: &str = "\x1B[38;5;3m";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGENTA_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const MAGENTA_FG: &str = "\x1B[38;5;5m";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_BLUE_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LIGHT_BLUE_FG: &str = "\x1B[38;5;6m";
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DARK_GRAY_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const DARK_GRAY_FG: &str = "\x1B[38;5;8m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_RED_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LIGHT_RED_FG: &str = "\x1B[38;5;9m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.70s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "554e3894deb1bb2ac1f6587ad970ae8134ad88826fee687ff5bff7e4010c80f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "554e3894deb1bb2ac1f6587ad970ae8134ad88826fee687ff5bff7e4010c80f9", kill_on_drop: false }`
[INFO] [stdout] 554e3894deb1bb2ac1f6587ad970ae8134ad88826fee687ff5bff7e4010c80f9
[INFO] checking TheDan64/limonite against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheDan64%2Flimonite" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheDan64/limonite on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TheDan64/limonite
[INFO] finished tweaking git repo https://github.com/TheDan64/limonite
[INFO] tweaked toml for git repo https://github.com/TheDan64/limonite written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/TheDan64/limonite 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]      Locking 1 package
[INFO] [stderr]       Adding hash-chain v0.2.5 (https://github.com/TheDan64/hash-chain?branch=master#603d46a7)
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a25641127a4b937ccc8c01779abf3cb5dc03a8b7e412b4845bb6efbeef447d15
[INFO] running `Command { std: "docker" "start" "-a" "a25641127a4b937ccc8c01779abf3cb5dc03a8b7e412b4845bb6efbeef447d15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a25641127a4b937ccc8c01779abf3cb5dc03a8b7e412b4845bb6efbeef447d15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a25641127a4b937ccc8c01779abf3cb5dc03a8b7e412b4845bb6efbeef447d15", kill_on_drop: false }`
[INFO] [stdout] a25641127a4b937ccc8c01779abf3cb5dc03a8b7e412b4845bb6efbeef447d15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67b853c5ebcb71aded172759e692e8bdd194a9f6d88ffd16420cbf07548f4d7b
[INFO] running `Command { std: "docker" "start" "-a" "67b853c5ebcb71aded172759e692e8bdd194a9f6d88ffd16420cbf07548f4d7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling inkwell v0.1.0-llvm10sample
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking term v0.6.1
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[INFO] [stderr]     Checking regex-automata v0.1.9
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[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking hash-chain v0.2.5 (https://github.com/TheDan64/hash-chain?branch=master#603d46a7)
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]     Checking oorandom v11.1.1
[INFO] [stderr]     Checking criterion-plot v0.4.2
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking slog-term v2.6.0
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.4
[INFO] [stderr]    Compiling llvm-sys v100.2.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling inkwell_internals v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking limonite v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/lexical/lexer.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/syntax/parser.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_pass_manager` is never read
[INFO] [stdout]    --> src/codegen/llvm/mod.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 763 | pub struct JitEngine<'codegen, 'context: 'codegen> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 767 |     fn_pass_manager: PassManager<FunctionValue<'context>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const GREEN_FG: &str = "\x1B[38;5;2m";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `YELLOW_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const YELLOW_FG: &str = "\x1B[38;5;3m";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGENTA_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const MAGENTA_FG: &str = "\x1B[38;5;5m";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_BLUE_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LIGHT_BLUE_FG: &str = "\x1B[38;5;6m";
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DARK_GRAY_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const DARK_GRAY_FG: &str = "\x1B[38;5;8m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_RED_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LIGHT_RED_FG: &str = "\x1B[38;5;9m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/lexical/lexer.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/syntax/parser.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_pass_manager` is never read
[INFO] [stdout]    --> src/codegen/llvm/mod.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 763 | pub struct JitEngine<'codegen, 'context: 'codegen> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 767 |     fn_pass_manager: PassManager<FunctionValue<'context>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const GREEN_FG: &str = "\x1B[38;5;2m";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `YELLOW_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const YELLOW_FG: &str = "\x1B[38;5;3m";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGENTA_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const MAGENTA_FG: &str = "\x1B[38;5;5m";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_BLUE_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LIGHT_BLUE_FG: &str = "\x1B[38;5;6m";
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DARK_GRAY_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const DARK_GRAY_FG: &str = "\x1B[38;5;8m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_RED_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LIGHT_RED_FG: &str = "\x1B[38;5;9m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.2
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/lexical/lexer.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/syntax/parser.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/lexical/lexer.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/syntax/parser.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::{Iterator, Peekable};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_pass_manager` is never read
[INFO] [stdout]    --> src/codegen/llvm/mod.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 763 | pub struct JitEngine<'codegen, 'context: 'codegen> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 767 |     fn_pass_manager: PassManager<FunctionValue<'context>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const GREEN_FG: &str = "\x1B[38;5;2m";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `YELLOW_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const YELLOW_FG: &str = "\x1B[38;5;3m";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGENTA_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const MAGENTA_FG: &str = "\x1B[38;5;5m";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_BLUE_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LIGHT_BLUE_FG: &str = "\x1B[38;5;6m";
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DARK_GRAY_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const DARK_GRAY_FG: &str = "\x1B[38;5;8m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_RED_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LIGHT_RED_FG: &str = "\x1B[38;5;9m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_pass_manager` is never read
[INFO] [stdout]    --> src/codegen/llvm/mod.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 763 | pub struct JitEngine<'codegen, 'context: 'codegen> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 767 |     fn_pass_manager: PassManager<FunctionValue<'context>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GREEN_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const GREEN_FG: &str = "\x1B[38;5;2m";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `YELLOW_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const YELLOW_FG: &str = "\x1B[38;5;3m";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGENTA_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const MAGENTA_FG: &str = "\x1B[38;5;5m";
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_BLUE_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LIGHT_BLUE_FG: &str = "\x1B[38;5;6m";
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DARK_GRAY_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const DARK_GRAY_FG: &str = "\x1B[38;5;8m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIGHT_RED_FG` is never used
[INFO] [stdout]   --> src/userfacing_error.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LIGHT_RED_FG: &str = "\x1B[38;5;9m";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.30s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "67b853c5ebcb71aded172759e692e8bdd194a9f6d88ffd16420cbf07548f4d7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b853c5ebcb71aded172759e692e8bdd194a9f6d88ffd16420cbf07548f4d7b", kill_on_drop: false }`
[INFO] [stdout] 67b853c5ebcb71aded172759e692e8bdd194a9f6d88ffd16420cbf07548f4d7b