[INFO] fetching crate rsyn 0.0.1...
[INFO] checking rsyn-0.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rsyn 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rsyn 0.0.1
[INFO] finished tweaking crates.io crate rsyn 0.0.1
[INFO] tweaked toml for crates.io crate rsyn 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsyn 0.0.1 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 crates.io crate rsyn 0.0.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6f971f6354f28f517d14f9b4e20acacadaa82275b429ba3dd3adb0f3af1a9c7b
[INFO] running `Command { std: "docker" "start" "-a" "6f971f6354f28f517d14f9b4e20acacadaa82275b429ba3dd3adb0f3af1a9c7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f971f6354f28f517d14f9b4e20acacadaa82275b429ba3dd3adb0f3af1a9c7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f971f6354f28f517d14f9b4e20acacadaa82275b429ba3dd3adb0f3af1a9c7b", kill_on_drop: false }`
[INFO] [stdout] 6f971f6354f28f517d14f9b4e20acacadaa82275b429ba3dd3adb0f3af1a9c7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 34096d3f534464d8526ec759973e2a14f83edbed7352c419c1dfa921b1c0fc34
[INFO] running `Command { std: "docker" "start" "-a" "34096d3f534464d8526ec759973e2a14f83edbed7352c419c1dfa921b1c0fc34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling anyhow v1.0.30
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]     Checking unix_mode v0.1.1
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking rsyn v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]   --> src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![warn(intra_doc_link_resolution_failure)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]   --> src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![warn(intra_doc_link_resolution_failure)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/rsyn.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// Directory to list.
[INFO] [stdout] 34 | |     path: 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]   --> src/bin/rsyn.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// File to send log/debug messages.
[INFO] [stdout] 37 | |     #[structopt(long, env = "RSYN_LOG_FILE")]
[INFO] [stdout] 38 | |     log_file: Option<PathBuf>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/rsyn.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Shell command to run to start rsync server.
[INFO] [stdout] 41 | |     #[structopt(long, env = "RSYN_RSYNC_PATH")]
[INFO] [stdout] 42 | |     rsync_path: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/rsyn.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     /// Shell command to open a connection to a remote server (default is ssh).
[INFO] [stdout] 45 | |     #[structopt(long, short = "e", env = "RSYN_RSH")]
[INFO] [stdout] 46 | |     rsh: Option<String>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/rsyn.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// Directory to list.
[INFO] [stdout] 34 | |     path: 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]   --> src/bin/rsyn.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// File to send log/debug messages.
[INFO] [stdout] 37 | |     #[structopt(long, env = "RSYN_LOG_FILE")]
[INFO] [stdout] 38 | |     log_file: Option<PathBuf>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/rsyn.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Shell command to run to start rsync server.
[INFO] [stdout] 41 | |     #[structopt(long, env = "RSYN_RSYNC_PATH")]
[INFO] [stdout] 42 | |     rsync_path: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/rsyn.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     /// Shell command to open a connection to a remote server (default is ssh).
[INFO] [stdout] 45 | |     #[structopt(long, short = "e", env = "RSYN_RSH")]
[INFO] [stdout] 46 | |     rsh: Option<String>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsyn` (bin "rsyn") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rsyn` (bin "rsyn" test) due to 4 previous errors
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/client.rs:498:17
[INFO] [stdout]     |
[INFO] [stdout] 498 |             let mut options = client.mut_options();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34096d3f534464d8526ec759973e2a14f83edbed7352c419c1dfa921b1c0fc34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34096d3f534464d8526ec759973e2a14f83edbed7352c419c1dfa921b1c0fc34", kill_on_drop: false }`
[INFO] [stdout] 34096d3f534464d8526ec759973e2a14f83edbed7352c419c1dfa921b1c0fc34
