[INFO] cloning repository https://github.com/Michael-F-Bryan/libloading-bindgen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Michael-F-Bryan/libloading-bindgen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Flibloading-bindgen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Flibloading-bindgen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a537a9ae98806f94e7a2de8048c6f2352e76016
[INFO] checking Michael-F-Bryan/libloading-bindgen against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Flibloading-bindgen" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Michael-F-Bryan/libloading-bindgen
[INFO] finished tweaking git repo https://github.com/Michael-F-Bryan/libloading-bindgen
[INFO] tweaked toml for git repo https://github.com/Michael-F-Bryan/libloading-bindgen written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Michael-F-Bryan/libloading-bindgen on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Michael-F-Bryan/libloading-bindgen 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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] 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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d9830cc08194175b5dba708d4d50a7cc81db059acefb98e424969d5247de033
[INFO] running `Command { std: "docker" "start" "-a" "0d9830cc08194175b5dba708d4d50a7cc81db059acefb98e424969d5247de033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d9830cc08194175b5dba708d4d50a7cc81db059acefb98e424969d5247de033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9830cc08194175b5dba708d4d50a7cc81db059acefb98e424969d5247de033", kill_on_drop: false }`
[INFO] [stdout] 0d9830cc08194175b5dba708d4d50a7cc81db059acefb98e424969d5247de033
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fae4f29072faf9d94b6177432857e785b95e168c89ef84736caed2af3f703657
[INFO] running `Command { std: "docker" "start" "-a" "fae4f29072faf9d94b6177432857e785b95e168c89ef84736caed2af3f703657", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling bindgen v0.54.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]     Checking peeking_take_while v0.1.2
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling cbindgen v0.14.3
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking which v3.1.1
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking clap v2.33.2
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking cexpr v0.4.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking libloading-bindgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking cargo-libloading-bindgen v0.1.0 (/opt/rustwide/workdir/cargo-libloading-bindgen)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cargo-libloading-bindgen/src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     #[structopt(
[INFO] [stdout] 37 | |         short = "f",
[INFO] [stdout] 38 | |         long = "whitelist-function",
[INFO] [stdout] 39 | |         multiple = true,
[INFO] [stdout] 40 | |         help = "Functions to include in the bindings (can be a regex)"
[INFO] [stdout] 41 | |     )]
[INFO] [stdout] 42 | |     whitelist_functions: Vec<String>,
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> cargo-libloading-bindgen/src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     #[structopt(short, long, help = "Where to write the bindings to")]
[INFO] [stdout] 44 | |     output: Option<PathBuf>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cargo-libloading-bindgen/src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     #[structopt(
[INFO] [stdout] 37 | |         short = "f",
[INFO] [stdout] 38 | |         long = "whitelist-function",
[INFO] [stdout] 39 | |         multiple = true,
[INFO] [stdout] 40 | |         help = "Functions to include in the bindings (can be a regex)"
[INFO] [stdout] 41 | |     )]
[INFO] [stdout] 42 | |     whitelist_functions: Vec<String>,
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> cargo-libloading-bindgen/src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     #[structopt(short, long, help = "Where to write the bindings to")]
[INFO] [stdout] 44 | |     output: Option<PathBuf>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-libloading-bindgen` (bin "cargo-libloading-bindgen") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cargo-libloading-bindgen` (bin "cargo-libloading-bindgen" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "fae4f29072faf9d94b6177432857e785b95e168c89ef84736caed2af3f703657", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae4f29072faf9d94b6177432857e785b95e168c89ef84736caed2af3f703657", kill_on_drop: false }`
[INFO] [stdout] fae4f29072faf9d94b6177432857e785b95e168c89ef84736caed2af3f703657
