[INFO] cloning repository https://github.com/Skarlett/charsub-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Skarlett/charsub-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkarlett%2Fcharsub-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkarlett%2Fcharsub-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86d9423eb2abe87207e4c7c5187913c02dcc26a3
[INFO] testing Skarlett/charsub-rs against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkarlett%2Fcharsub-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Skarlett/charsub-rs
[INFO] finished tweaking git repo https://github.com/Skarlett/charsub-rs
[INFO] tweaked toml for git repo https://github.com/Skarlett/charsub-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Skarlett/charsub-rs on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Skarlett/charsub-rs 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-7-tc1/source/cli_tool/Cargo.toml: unused manifest key: dependencies.structopt.feature
[INFO] [stderr] warning: /workspace/builds/worker-7-tc1/source/cli_tool/Cargo.toml: unused manifest key: package.path
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd899bdb5c09e070aee06070bfc0184dfb14b77876059f98a72b6bf967f05aea
[INFO] running `Command { std: "docker" "start" "-a" "bd899bdb5c09e070aee06070bfc0184dfb14b77876059f98a72b6bf967f05aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd899bdb5c09e070aee06070bfc0184dfb14b77876059f98a72b6bf967f05aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd899bdb5c09e070aee06070bfc0184dfb14b77876059f98a72b6bf967f05aea", kill_on_drop: false }`
[INFO] [stdout] bd899bdb5c09e070aee06070bfc0184dfb14b77876059f98a72b6bf967f05aea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5eaf0333591c466c8a0c6a622ee493679b97bf20b09122ceda2cdac849bbe47
[INFO] running `Command { std: "docker" "start" "-a" "a5eaf0333591c466c8a0c6a622ee493679b97bf20b09122ceda2cdac849bbe47", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/cli_tool/Cargo.toml: unused manifest key: dependencies.structopt.feature
[INFO] [stderr] warning: /opt/rustwide/workdir/cli_tool/Cargo.toml: unused manifest key: package.path
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bytes v1.0.0
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling evc v0.1.2
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling charsub v0.2.0 (/opt/rustwide/workdir/charsub)
[INFO] [stdout] warning: unused import: `crate::RuleCell`
[INFO] [stdout]  --> charsub/src/unit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::RuleCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RuleCell` and `patterns::RuleEntry`
[INFO] [stdout]  --> charsub/src/cursor.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     RuleCell,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     patterns::RuleEntry,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hashbrown::HashMap`
[INFO] [stdout]  --> charsub/src/cursor.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use hashbrown::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cursor` and `Output`
[INFO] [stdout]  --> charsub/src/api.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     cursor::{Cursor, Output},
[INFO] [stdout]   |              ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RuleCell`
[INFO] [stdout]  --> charsub/src/scheduler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     RuleCell,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` attribute cannot be used on required trait methods
[INFO] [stdout]  --> charsub/src/patterns.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[inline]` can be applied to closures, functions, inherent methods, provided trait methods, and trait methods in impl blocks
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cli_tool v0.1.0 (/opt/rustwide/workdir/cli_tool)
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]   --> cli_tool/src/multi_runtime.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     sync::{Arc, Mutex},
[INFO] [stdout]    |            ^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]   --> cli_tool/src/multi_runtime.rs:65:37
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Schedules::SingleThread(func) => true,
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Binary` is never constructed
[INFO] [stdout]   --> cli_tool/src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Binary;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> cli_tool/src/error.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     BadInput(String),
[INFO] [stdout]   |     -------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     BadInput(String),
[INFO] [stdout] 4 +     BadInput(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> cli_tool/src/error.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         writeln!(x, "{:?}", &self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let _ = writeln!(x, "{:?}", &self);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.12s
[INFO] running `Command { std: "docker" "inspect" "a5eaf0333591c466c8a0c6a622ee493679b97bf20b09122ceda2cdac849bbe47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5eaf0333591c466c8a0c6a622ee493679b97bf20b09122ceda2cdac849bbe47", kill_on_drop: false }`
[INFO] [stdout] a5eaf0333591c466c8a0c6a622ee493679b97bf20b09122ceda2cdac849bbe47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aee206c3e3f65e9d558f48a51f7201220abad56c1bb53b6fcc8f0734971c35a5
[INFO] running `Command { std: "docker" "start" "-a" "aee206c3e3f65e9d558f48a51f7201220abad56c1bb53b6fcc8f0734971c35a5", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/cli_tool/Cargo.toml: unused manifest key: dependencies.structopt.feature
[INFO] [stderr] warning: /opt/rustwide/workdir/cli_tool/Cargo.toml: unused manifest key: package.path
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stdout] warning: unused import: `crate::RuleCell`
[INFO] [stdout]  --> charsub/src/unit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::RuleCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RuleCell` and `patterns::RuleEntry`
[INFO] [stdout]  --> charsub/src/cursor.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     RuleCell,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     patterns::RuleEntry,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hashbrown::HashMap`
[INFO] [stdout]  --> charsub/src/cursor.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use hashbrown::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cursor` and `Output`
[INFO] [stdout]  --> charsub/src/api.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     cursor::{Cursor, Output},
[INFO] [stdout]   |              ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stdout] warning: unused import: `RuleCell`
[INFO] [stdout]  --> charsub/src/scheduler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     RuleCell,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` attribute cannot be used on required trait methods
[INFO] [stdout]  --> charsub/src/patterns.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[inline]` can be applied to closures, functions, inherent methods, provided trait methods, and trait methods in impl blocks
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cli_tool v0.1.0 (/opt/rustwide/workdir/cli_tool)
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]   --> cli_tool/src/multi_runtime.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     sync::{Arc, Mutex},
[INFO] [stdout]    |            ^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]   --> cli_tool/src/multi_runtime.rs:65:37
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Schedules::SingleThread(func) => true,
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Binary` is never constructed
[INFO] [stdout]   --> cli_tool/src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Binary;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> cli_tool/src/error.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     BadInput(String),
[INFO] [stdout]   |     -------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     BadInput(String),
[INFO] [stdout] 4 +     BadInput(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> cli_tool/src/error.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         writeln!(x, "{:?}", &self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let _ = writeln!(x, "{:?}", &self);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling rand v0.8.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling charsub v0.2.0 (/opt/rustwide/workdir/charsub)
[INFO] [stdout] warning: unused imports: `RuleCell` and `patterns::RuleEntry`
[INFO] [stdout]  --> charsub/src/cursor.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     RuleCell,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     patterns::RuleEntry,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hashbrown::HashMap`
[INFO] [stdout]  --> charsub/src/cursor.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use hashbrown::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cursor` and `Output`
[INFO] [stdout]  --> charsub/src/api.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     cursor::{Cursor, Output},
[INFO] [stdout]   |              ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RuleCell`
[INFO] [stdout]  --> charsub/src/scheduler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     RuleCell,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` attribute cannot be used on required trait methods
[INFO] [stdout]  --> charsub/src/patterns.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[inline]` can be applied to closures, functions, inherent methods, provided trait methods, and trait methods in impl blocks
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 20.01s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "aee206c3e3f65e9d558f48a51f7201220abad56c1bb53b6fcc8f0734971c35a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee206c3e3f65e9d558f48a51f7201220abad56c1bb53b6fcc8f0734971c35a5", kill_on_drop: false }`
[INFO] [stdout] aee206c3e3f65e9d558f48a51f7201220abad56c1bb53b6fcc8f0734971c35a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cd40fcee4e4d95073ad051c92c76ec4ac710caa111a5900f041cda5b8808a6d1
[INFO] running `Command { std: "docker" "start" "-a" "cd40fcee4e4d95073ad051c92c76ec4ac710caa111a5900f041cda5b8808a6d1", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/cli_tool/Cargo.toml: unused manifest key: dependencies.structopt.feature
[INFO] [stderr] warning: /opt/rustwide/workdir/cli_tool/Cargo.toml: unused manifest key: package.path
[INFO] [stderr] warning: unused import: `crate::RuleCell`
[INFO] [stderr]  --> charsub/src/unit.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::RuleCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `RuleCell` and `patterns::RuleEntry`
[INFO] [stderr]  --> charsub/src/cursor.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     RuleCell,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 4 |     patterns::RuleEntry,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hashbrown::HashMap`
[INFO] [stderr]  --> charsub/src/cursor.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use hashbrown::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Cursor` and `Output`
[INFO] [stderr]  --> charsub/src/api.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 |     cursor::{Cursor, Output},
[INFO] [stderr]   |              ^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RuleCell`
[INFO] [stderr]  --> charsub/src/scheduler.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     RuleCell,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` attribute cannot be used on required trait methods
[INFO] [stderr]  --> charsub/src/patterns.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     #[inline]
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = help: `#[inline]` can be applied to closures, functions, inherent methods, provided trait methods, and trait methods in impl blocks
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `charsub` (lib) generated 6 warnings (run `cargo fix --lib -p charsub` to apply 6 suggestions)
[INFO] [stderr] warning: unused imports: `RuleCell` and `patterns::RuleEntry`
[INFO] [stderr]  --> charsub/src/cursor.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     RuleCell,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 4 |     patterns::RuleEntry,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `charsub` (lib test) generated 5 warnings (4 duplicates) (run `cargo fix --lib -p charsub --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused imports: `Arc` and `Mutex`
[INFO] [stderr]   --> cli_tool/src/multi_runtime.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     sync::{Arc, Mutex},
[INFO] [stderr]    |            ^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `func`
[INFO] [stderr]   --> cli_tool/src/multi_runtime.rs:65:37
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Schedules::SingleThread(func) => true,
[INFO] [stderr]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Binary` is never constructed
[INFO] [stderr]   --> cli_tool/src/main.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct Binary;
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> cli_tool/src/error.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 |     BadInput(String),
[INFO] [stderr]   |     -------- ^^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 4 -     BadInput(String),
[INFO] [stderr] 4 +     BadInput(()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> cli_tool/src/error.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         writeln!(x, "{:?}", &self);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 10 |         let _ = writeln!(x, "{:?}", &self);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `cli_tool` (bin "cli_tool" test) generated 5 warnings (run `cargo fix --bin "cli_tool" -p cli_tool --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/charsub-6044ba4baef87f4f)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test scheduler::unsafe_buf_behave ... ok
[INFO] [stdout] test unit::test::behavior_commit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cli_tool-08c943eb06a833bb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests charsub
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cd40fcee4e4d95073ad051c92c76ec4ac710caa111a5900f041cda5b8808a6d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd40fcee4e4d95073ad051c92c76ec4ac710caa111a5900f041cda5b8808a6d1", kill_on_drop: false }`
[INFO] [stdout] cd40fcee4e4d95073ad051c92c76ec4ac710caa111a5900f041cda5b8808a6d1
