[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] fd61a4a915e9d39bfc86e631291b906a6288509c
[INFO] checking Skarlett/charsub-rs against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkarlett%2Fcharsub-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Skarlett/charsub-rs on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Skarlett/charsub-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-8/source/cli_tool/Cargo.toml: unused manifest key: dependencies.structopt.feature
[INFO] [stderr] warning: /workspace/builds/worker-8/source/cli_tool/Cargo.toml: unused manifest key: package.path
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded evc v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df63781d08ba4611a0c74250a461c220d909aef566d0b9b9a8e48f256888fbb1
[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" "df63781d08ba4611a0c74250a461c220d909aef566d0b9b9a8e48f256888fbb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df63781d08ba4611a0c74250a461c220d909aef566d0b9b9a8e48f256888fbb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df63781d08ba4611a0c74250a461c220d909aef566d0b9b9a8e48f256888fbb1", kill_on_drop: false }`
[INFO] [stdout] df63781d08ba4611a0c74250a461c220d909aef566d0b9b9a8e48f256888fbb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3fd6d6d63e4d030764762d8b6931254e188104bde2c5f6d617bd3b22eceed28
[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" "f3fd6d6d63e4d030764762d8b6931254e188104bde2c5f6d617bd3b22eceed28", 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 autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking evc v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.1
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking tinytemplate v1.2.0
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RuleCell`, `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`, `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]` is ignored on function prototypes
[INFO] [stdout]  --> charsub/src/patterns.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cli_tool v0.1.0 (/opt/rustwide/workdir/cli_tool)
[INFO] [stdout] warning: unused imports: `Arc`, `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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `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)]` 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)]` 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)]` on by default
[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: `#[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 `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: `#[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RuleCell`, `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)]` 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`, `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]` is ignored on function prototypes
[INFO] [stdout]  --> charsub/src/patterns.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]  --> charsub/bench/schedulers.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `criterion::Throughput`
[INFO] [stdout]  --> charsub/bench/schedulers.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use criterion::Throughput;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ModulusPattern`, `MultithreadMutex`
[INFO] [stdout]   --> charsub/bench/schedulers.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |     scheduler::{MultithreadMutex, TokioMutex, SingleThread},
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 68 |     ConstPattern, ModulusPattern
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `finished_SingleThread_ConstPattern` should have a snake case name
[INFO] [stdout]   --> charsub/bench/schedulers.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |         fn [<finished_ $scheduler _ $pattern>](c: &mut Criterion) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `finished_single_thread_const_pattern`
[INFO] [stdout] ...
[INFO] [stdout] 72 | test_me!(SingleThread, ConstPattern);
[INFO] [stdout]    | ------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[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: function `finished_TokioMutex_ConstPattern` should have a snake case name
[INFO] [stdout]   --> charsub/bench/schedulers.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |         fn [<finished_ $scheduler _ $pattern>](c: &mut Criterion) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `finished_tokio_mutex_const_pattern`
[INFO] [stdout] ...
[INFO] [stdout] 73 | test_me!(TokioMutex, ConstPattern);
[INFO] [stdout]    | ----------------------------------- in this macro invocation
[INFO] [stdout]    |
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
[INFO] running `Command { std: "docker" "inspect" "f3fd6d6d63e4d030764762d8b6931254e188104bde2c5f6d617bd3b22eceed28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3fd6d6d63e4d030764762d8b6931254e188104bde2c5f6d617bd3b22eceed28", kill_on_drop: false }`
[INFO] [stdout] f3fd6d6d63e4d030764762d8b6931254e188104bde2c5f6d617bd3b22eceed28