[INFO] cloning repository https://github.com/vivienm/snapmount
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vivienm/snapmount" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvivienm%2Fsnapmount", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvivienm%2Fsnapmount'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e25bc6ba1b45905a3c1f34eb4eefdc21d24880c
[INFO] checking vivienm/snapmount 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%2Fvivienm%2Fsnapmount" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/vivienm/snapmount
[INFO] finished tweaking git repo https://github.com/vivienm/snapmount
[INFO] tweaked toml for git repo https://github.com/vivienm/snapmount written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vivienm/snapmount 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/vivienm/snapmount 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] 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] ba42c347e47cae51b484fdc39a37252180622b851280f0839777627ad603be1e
[INFO] running `Command { std: "docker" "start" "-a" "ba42c347e47cae51b484fdc39a37252180622b851280f0839777627ad603be1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba42c347e47cae51b484fdc39a37252180622b851280f0839777627ad603be1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba42c347e47cae51b484fdc39a37252180622b851280f0839777627ad603be1e", kill_on_drop: false }`
[INFO] [stdout] ba42c347e47cae51b484fdc39a37252180622b851280f0839777627ad603be1e
[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] 914bfb9a6a6b21a3b00bd39527bc18bf35eb8bb37221fde2c8bad589281b8971
[INFO] running `Command { std: "docker" "start" "-a" "914bfb9a6a6b21a3b00bd39527bc18bf35eb8bb37221fde2c8bad589281b8971", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking fs-err v2.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking clap v3.1.6
[INFO] [stderr]     Checking clap_complete v3.1.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking snapmount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/cli.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 | /     /// Path to the configuration file.
[INFO] [stdout] 77 | |     #[clap(
[INFO] [stdout] 78 | |         short = 'c',
[INFO] [stdout] 79 | |         long = "config",
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |     )]
[INFO] [stdout] 83 | |     pub config_path: PathBuf,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `snapmount` (bin "snapmount") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/cli.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 | /     /// Path to the configuration file.
[INFO] [stdout] 77 | |     #[clap(
[INFO] [stdout] 78 | |         short = 'c',
[INFO] [stdout] 79 | |         long = "config",
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |     )]
[INFO] [stdout] 83 | |     pub config_path: PathBuf,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `snapmount` (bin "snapmount" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "914bfb9a6a6b21a3b00bd39527bc18bf35eb8bb37221fde2c8bad589281b8971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "914bfb9a6a6b21a3b00bd39527bc18bf35eb8bb37221fde2c8bad589281b8971", kill_on_drop: false }`
[INFO] [stdout] 914bfb9a6a6b21a3b00bd39527bc18bf35eb8bb37221fde2c8bad589281b8971