[INFO] cloning repository https://github.com/cfallin/isle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cfallin/isle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfallin%2Fisle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfallin%2Fisle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb582977fc70911e06f3ef460087dffe6120665f
[INFO] checking cfallin/isle against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfallin%2Fisle" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cfallin/isle
[INFO] finished tweaking git repo https://github.com/cfallin/isle
[INFO] tweaked toml for git repo https://github.com/cfallin/isle written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cfallin/isle on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cfallin/isle 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded supports-unicode v1.0.2
[INFO] [stderr]   Downloaded miette-derive v3.0.1
[INFO] [stderr]   Downloaded supports-color v1.1.1
[INFO] [stderr]   Downloaded supports-hyperlinks v1.2.0
[INFO] [stderr]   Downloaded miette v3.0.1
[INFO] [stderr]   Downloaded arbitrary v1.0.2
[INFO] [stderr]   Downloaded unicode-linebreak v0.1.2
[INFO] [stderr]   Downloaded owo-colors v2.1.0
[INFO] [stderr]   Downloaded libfuzzer-sys v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91c554c8c934e4d82bb69f6da0e7b4c04b7b3ff15995900f243ff794ab16a382
[INFO] running `Command { std: "docker" "start" "-a" "91c554c8c934e4d82bb69f6da0e7b4c04b7b3ff15995900f243ff794ab16a382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91c554c8c934e4d82bb69f6da0e7b4c04b7b3ff15995900f243ff794ab16a382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c554c8c934e4d82bb69f6da0e7b4c04b7b3ff15995900f243ff794ab16a382", kill_on_drop: false }`
[INFO] [stdout] 91c554c8c934e4d82bb69f6da0e7b4c04b7b3ff15995900f243ff794ab16a382
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39ac117a49ade82e670e5d1f6cfa5496f6048f7a83c28e02efe5def6aba2f272
[INFO] running `Command { std: "docker" "start" "-a" "39ac117a49ade82e670e5d1f6cfa5496f6048f7a83c28e02efe5def6aba2f272", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]     Checking is_ci v1.1.1
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]     Checking owo-colors v2.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking supports-unicode v1.0.2
[INFO] [stderr]     Checking supports-hyperlinks v1.2.0
[INFO] [stderr]     Checking arbitrary v1.0.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking supports-color v1.1.1
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling miette-derive v3.0.1
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling unicode-linebreak v0.1.2
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking miette v3.0.1
[INFO] [stderr]     Checking isle v0.1.0 (/opt/rustwide/workdir/isle)
[INFO] [stdout] warning: value assigned to `error` is never read
[INFO] [stdout]   --> isle/src/error.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         error: Arc<std::io::Error>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `src` is never read
[INFO] [stdout]   --> isle/src/error.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         src: Source,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> isle/src/error.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         span: SourceSpan,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `src` is never read
[INFO] [stdout]   --> isle/src/error.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         src: Source,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> isle/src/error.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         span: SourceSpan,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `msg` is never read
[INFO] [stdout]   --> isle/src/error.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         msg: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `msg` is never read
[INFO] [stdout]   --> isle/src/error.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         msg: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `error` is never read
[INFO] [stdout]   --> isle/src/error.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         error: Arc<std::io::Error>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `src` is never read
[INFO] [stdout]   --> isle/src/error.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         src: Source,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> isle/src/error.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         span: SourceSpan,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `src` is never read
[INFO] [stdout]   --> isle/src/error.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         src: Source,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `span` is never read
[INFO] [stdout]   --> isle/src/error.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         span: SourceSpan,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `msg` is never read
[INFO] [stdout]   --> isle/src/error.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         msg: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `msg` is never read
[INFO] [stdout]   --> isle/src/error.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         msg: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking islec v0.1.0 (/opt/rustwide/workdir/islec)
[INFO] [stderr]     Checking isle-fuzz v0.0.0 (/opt/rustwide/workdir/fuzz)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.53s
[INFO] running `Command { std: "docker" "inspect" "39ac117a49ade82e670e5d1f6cfa5496f6048f7a83c28e02efe5def6aba2f272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39ac117a49ade82e670e5d1f6cfa5496f6048f7a83c28e02efe5def6aba2f272", kill_on_drop: false }`
[INFO] [stdout] 39ac117a49ade82e670e5d1f6cfa5496f6048f7a83c28e02efe5def6aba2f272
