[INFO] fetching crate wk 0.5.0...
[INFO] checking wk-0.5.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate wk 0.5.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate wk 0.5.0 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 wk 0.5.0
[INFO] finished tweaking crates.io crate wk 0.5.0
[INFO] tweaked toml for crates.io crate wk 0.5.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate wk 0.5.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded pathdiff v0.1.0
[INFO] [stderr]   Downloaded os_pipe v0.8.2
[INFO] [stderr]   Downloaded duct v0.12.0
[INFO] [stderr]   Downloaded anyhow v1.0.26
[INFO] [stderr]   Downloaded app_dirs v1.2.1
[INFO] [stderr]   Downloaded shared_child v0.3.4
[INFO] [stderr]   Downloaded ole32-sys v0.2.0
[INFO] [stderr]   Downloaded shell32-sys v0.1.2
[INFO] [stderr]   Downloaded nix v0.15.0
[INFO] [stderr]   Downloaded whoami v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ef9ab331632e72799099054e9d52ffadf077fbbea2138031de4974cc14a88907
[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" "ef9ab331632e72799099054e9d52ffadf077fbbea2138031de4974cc14a88907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef9ab331632e72799099054e9d52ffadf077fbbea2138031de4974cc14a88907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef9ab331632e72799099054e9d52ffadf077fbbea2138031de4974cc14a88907", kill_on_drop: false }`
[INFO] [stdout] ef9ab331632e72799099054e9d52ffadf077fbbea2138031de4974cc14a88907
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ba97a9e299e26691804228b63e7accba167ff7b749f37e62e4d16d1d6b467f5c
[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" "ba97a9e299e26691804228b63e7accba167ff7b749f37e62e4d16d1d6b467f5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]     Checking pathdiff v0.1.0
[INFO] [stderr]     Checking whoami v0.5.3
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking shared_child v0.3.4
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking os_pipe v0.8.2
[INFO] [stderr]     Checking duct v0.12.0
[INFO] [stderr]     Checking wk v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `force`
[INFO] [stdout]    --> src/main.rs:228:12
[INFO] [stdout]     |
[INFO] [stdout] 228 |     Init { force: bool },
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `force`
[INFO] [stdout]    --> src/main.rs:228:12
[INFO] [stdout]     |
[INFO] [stdout] 228 |     Init { force: bool },
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.27s
[INFO] running `Command { std: "docker" "inspect" "ba97a9e299e26691804228b63e7accba167ff7b749f37e62e4d16d1d6b467f5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba97a9e299e26691804228b63e7accba167ff7b749f37e62e4d16d1d6b467f5c", kill_on_drop: false }`
[INFO] [stdout] ba97a9e299e26691804228b63e7accba167ff7b749f37e62e4d16d1d6b467f5c