[INFO] cloning repository https://github.com/xurtis/screencap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xurtis/screencap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxurtis%2Fscreencap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxurtis%2Fscreencap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9fbd25bb9f6c1879fb311df1b016a31ba65ba4a9
[INFO] checking xurtis/screencap against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxurtis%2Fscreencap" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xurtis/screencap on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xurtis/screencap
[INFO] finished tweaking git repo https://github.com/xurtis/screencap
[INFO] tweaked toml for git repo https://github.com/xurtis/screencap written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/xurtis/screencap already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 896aaf4df5ba46e7a11f0d7bc2b8665db009e966a69a5b8168535f979c32abbd
[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" "896aaf4df5ba46e7a11f0d7bc2b8665db009e966a69a5b8168535f979c32abbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "896aaf4df5ba46e7a11f0d7bc2b8665db009e966a69a5b8168535f979c32abbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "896aaf4df5ba46e7a11f0d7bc2b8665db009e966a69a5b8168535f979c32abbd", kill_on_drop: false }`
[INFO] [stdout] 896aaf4df5ba46e7a11f0d7bc2b8665db009e966a69a5b8168535f979c32abbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 454674f8202d4a4078bf789f2431fe04556d94a770ee85474938995199040a65
[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" "454674f8202d4a4078bf789f2431fe04556d94a770ee85474938995199040a65", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking screencap v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `screencap`
[INFO] [stderr] 
[INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files:
[INFO] [stderr] 
[INFO] [stderr]   * src/util.rs
[INFO] [stderr] 
[INFO] [stderr] This likely indicates a bug in either rustc or cargo itself,
[INFO] [stderr] and we would appreciate a bug report! You're likely to see 
[INFO] [stderr] a number of compiler warnings after this message which cargo
[INFO] [stderr] attempted to fix but failed. If you could open an issue at
[INFO] [stderr] https://github.com/rust-lang/rust/issues
[INFO] [stderr] quoting the full output of this command we'd be very appreciative!
[INFO] [stderr] Note that you may be able to make some more progress in the near-term
[INFO] [stderr] fixing code with the `--broken-code` flag
[INFO] [stderr] 
[INFO] [stderr] The following errors were reported:
[INFO] [stderr] error: no rules expected the token `let`
[INFO] [stderr]    --> src/util.rs:14:17
[INFO] [stderr]     |
[INFO] [stderr] 10  | macro_rules! exec {
[INFO] [stderr]     | ----------------- when calling this macro
[INFO] [stderr] ...
[INFO] [stderr] 14  |         exec!(@(let _ = &mut command) $($args)*);
[INFO] [stderr]     |                 ^^^ no rules expected this token in macro call
[INFO] [stderr] ...
[INFO] [stderr] 145 |         Self::parse(exec!(ffmpeg - formats))
[INFO] [stderr]     |                     ----------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: no rules expected the token `let`
[INFO] [stderr]    --> src/util.rs:14:17
[INFO] [stderr]     |
[INFO] [stderr] 10  | macro_rules! exec {
[INFO] [stderr]     | ----------------- when calling this macro
[INFO] [stderr] ...
[INFO] [stderr] 14  |         exec!(@(let _ = &mut command) $($args)*);
[INFO] [stderr]     |                 ^^^ no rules expected this token in macro call
[INFO] [stderr] ...
[INFO] [stderr] 185 |         Self::parse(exec!(ffmpeg - encoders)).map(|(mut s, t)| {
[INFO] [stderr]     |                     ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: no rules expected the token `let`
[INFO] [stderr]   --> src/util.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 10 |   macro_rules! exec {
[INFO] [stderr]    |   ----------------- when calling this macro
[INFO] [stderr] ...
[INFO] [stderr] 14 |           exec!(@(let _ = &mut command) $($args)*);
[INFO] [stderr]    |                   ^^^ no rules expected this token in macro call
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/main.rs:73:23
[INFO] [stderr]    |
[INFO] [stderr] 73 |       let mut command = exec!(ffmpeg
[INFO] [stderr]    |  _______________________-
[INFO] [stderr] 74 | |         -hide_banner
[INFO] [stderr] 75 | |         -threads (num_cpus::get())
[INFO] [stderr] 76 | |         -y
[INFO] [stderr] ...  |
[INFO] [stderr] 87 | |         (filename)
[INFO] [stderr] 88 | |     );
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: no rules expected the token `let`
[INFO] [stderr]    --> src/util.rs:14:17
[INFO] [stderr]     |
[INFO] [stderr] 10  | macro_rules! exec {
[INFO] [stderr]     | ----------------- when calling this macro
[INFO] [stderr] ...
[INFO] [stderr] 14  |         exec!(@(let _ = &mut command) $($args)*);
[INFO] [stderr]     |                 ^^^ no rules expected this token in macro call
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/main.rs:112:32
[INFO] [stderr]     |
[INFO] [stderr] 112 |     let lines = command_output(exec!(xdpyinfo));
[INFO] [stderr]     |                                --------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: no rules expected the token `let`
[INFO] [stderr]    --> src/util.rs:14:17
[INFO] [stderr]     |
[INFO] [stderr] 10  | macro_rules! exec {
[INFO] [stderr]     | ----------------- when calling this macro
[INFO] [stderr] ...
[INFO] [stderr] 14  |         exec!(@(let _ = &mut command) $($args)*);
[INFO] [stderr]     |                 ^^^ no rules expected this token in macro call
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/main.rs:122:32
[INFO] [stderr]     |
[INFO] [stderr] 122 |     let lines = command_output(exec!(xwininfo - id(window_id)));
[INFO] [stderr]     |                                ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: no rules expected the token `let`
[INFO] [stderr]    --> src/util.rs:14:17
[INFO] [stderr]     |
[INFO] [stderr] 10  | macro_rules! exec {
[INFO] [stderr]     | ----------------- when calling this macro
[INFO] [stderr] ...
[INFO] [stderr] 14  |         exec!(@(let _ = &mut command) $($args)*);
[INFO] [stderr]     |                 ^^^ no rules expected this token in macro call
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/main.rs:136:32
[INFO] [stderr]     |
[INFO] [stderr] 136 |     let lines = command_output(exec!(xprop - root));
[INFO] [stderr]     |                                ------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Original diagnostics will follow.
[INFO] [stderr] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/util.rs:14:17
[INFO] [stdout]     |
[INFO] [stdout] 14  |         exec!(@(&mut command) $($args)*);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/main.rs:112:32
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let lines = command_output(exec!(xdpyinfo));
[INFO] [stdout]     |                                --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 14  |         exec!(@(let _ = &mut command) $($args)*);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/util.rs:14:17
[INFO] [stdout]     |
[INFO] [stdout] 14  |         exec!(@(&mut command) $($args)*);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/main.rs:112:32
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let lines = command_output(exec!(xdpyinfo));
[INFO] [stdout]     |                                --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 14  |         exec!(@(let _ = &mut command) $($args)*);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.02s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking screencap v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/util.rs:14:17
[INFO] [stdout]     |
[INFO] [stdout] 14  |         exec!(@(&mut command) $($args)*);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/main.rs:112:32
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let lines = command_output(exec!(xdpyinfo));
[INFO] [stdout]     |                                --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 14  |         exec!(@(let _ = &mut command) $($args)*);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/util.rs:14:17
[INFO] [stdout]     |
[INFO] [stdout] 14  |         exec!(@(&mut command) $($args)*);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/main.rs:112:32
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let lines = command_output(exec!(xdpyinfo));
[INFO] [stdout]     |                                --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `exec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 14  |         exec!(@(let _ = &mut command) $($args)*);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "454674f8202d4a4078bf789f2431fe04556d94a770ee85474938995199040a65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "454674f8202d4a4078bf789f2431fe04556d94a770ee85474938995199040a65", kill_on_drop: false }`
[INFO] [stdout] 454674f8202d4a4078bf789f2431fe04556d94a770ee85474938995199040a65