[INFO] fetching crate i3-workspace-groups 0.2.2...
[INFO] checking i3-workspace-groups-0.2.2 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate i3-workspace-groups 0.2.2 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate i3-workspace-groups 0.2.2 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate i3-workspace-groups 0.2.2
[INFO] finished tweaking crates.io crate i3-workspace-groups 0.2.2
[INFO] tweaked toml for crates.io crate i3-workspace-groups 0.2.2 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4eb05b9b06e4d8a317626e5e2d136f311bce4f66f489ba73ddbe120fc4b3becb
[INFO] running `Command { std: "docker" "start" "-a" "4eb05b9b06e4d8a317626e5e2d136f311bce4f66f489ba73ddbe120fc4b3becb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4eb05b9b06e4d8a317626e5e2d136f311bce4f66f489ba73ddbe120fc4b3becb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eb05b9b06e4d8a317626e5e2d136f311bce4f66f489ba73ddbe120fc4b3becb", kill_on_drop: false }`
[INFO] [stdout] 4eb05b9b06e4d8a317626e5e2d136f311bce4f66f489ba73ddbe120fc4b3becb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f231ee72a3fd54eb94cbae1864f69000c181da0f609029eb2c93f9f5431dae0
[INFO] running `Command { std: "docker" "start" "-a" "9f231ee72a3fd54eb94cbae1864f69000c181da0f609029eb2c93f9f5431dae0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking i3ipc v0.9.0
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking i3-workspace-groups v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/common.rs:40:61
[INFO] [stdout]     |
[INFO] [stdout] 40  |         $e.keys().map(|key| &key[..]).collect::<Vec<&str>>();
[INFO] [stdout]     |                                                             ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/controller.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         keys_to_strptr_vec!(self.get_groups())
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `keys_to_strptr_vec`
[INFO] [stdout]     = note: this warning originates in the macro `keys_to_strptr_vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/common.rs:40:61
[INFO] [stdout]     |
[INFO] [stdout] 40  |         $e.keys().map(|key| &key[..]).collect::<Vec<&str>>();
[INFO] [stdout]     |                                                             ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/controller.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         keys_to_strptr_vec!(self.get_groups())
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `keys_to_strptr_vec`
[INFO] [stdout]     = note: this warning originates in the macro `keys_to_strptr_vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 11.13s
[INFO] running `Command { std: "docker" "inspect" "9f231ee72a3fd54eb94cbae1864f69000c181da0f609029eb2c93f9f5431dae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f231ee72a3fd54eb94cbae1864f69000c181da0f609029eb2c93f9f5431dae0", kill_on_drop: false }`
[INFO] [stdout] 9f231ee72a3fd54eb94cbae1864f69000c181da0f609029eb2c93f9f5431dae0