[INFO] fetching crate sway-alttab 1.1.2...
[INFO] checking sway-alttab-1.1.2 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate sway-alttab 1.1.2 into /workspace/builds/worker-106/source
[INFO] validating manifest of crates.io crate sway-alttab 1.1.2 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sway-alttab 1.1.2
[INFO] finished tweaking crates.io crate sway-alttab 1.1.2
[INFO] tweaked toml for crates.io crate sway-alttab 1.1.2 written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate crates.io crate sway-alttab 1.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10ee383f8b78dc8bf4d6ad49c049f6f2bafac547d2060858e15b94cc475b74ae
[INFO] running `Command { std: "docker" "start" "-a" "10ee383f8b78dc8bf4d6ad49c049f6f2bafac547d2060858e15b94cc475b74ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10ee383f8b78dc8bf4d6ad49c049f6f2bafac547d2060858e15b94cc475b74ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10ee383f8b78dc8bf4d6ad49c049f6f2bafac547d2060858e15b94cc475b74ae", kill_on_drop: false }`
[INFO] [stdout] 10ee383f8b78dc8bf4d6ad49c049f6f2bafac547d2060858e15b94cc475b74ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ff30aa0fa488d7b5360e25d0731397fd27e9f0d0afa21e1ae9947979733256f
[INFO] running `Command { std: "docker" "start" "-a" "9ff30aa0fa488d7b5360e25d0731397fd27e9f0d0afa21e1ae9947979733256f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking signal-hook v0.1.12
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking swayipc v2.2.4
[INFO] [stderr]     Checking sway-alttab v1.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.85s
[INFO] running `Command { std: "docker" "inspect" "9ff30aa0fa488d7b5360e25d0731397fd27e9f0d0afa21e1ae9947979733256f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ff30aa0fa488d7b5360e25d0731397fd27e9f0d0afa21e1ae9947979733256f", kill_on_drop: false }`
[INFO] [stdout] 9ff30aa0fa488d7b5360e25d0731397fd27e9f0d0afa21e1ae9947979733256f