[INFO] fetching crate killswitch 0.3.0...
[INFO] checking killswitch-0.3.0 against master#42bd138126b0a9d38d65bc9973e72de3c5b6c37f for pr-99217
[INFO] extracting crate killswitch 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate killswitch 0.3.0 on toolchain 42bd138126b0a9d38d65bc9973e72de3c5b6c37f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate killswitch 0.3.0
[INFO] finished tweaking crates.io crate killswitch 0.3.0
[INFO] tweaked toml for crates.io crate killswitch 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate killswitch 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84858aa8d00efe2c881276913a949bca0eb441a8ff780f97029c0c63a9c9f03c
[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" "84858aa8d00efe2c881276913a949bca0eb441a8ff780f97029c0c63a9c9f03c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84858aa8d00efe2c881276913a949bca0eb441a8ff780f97029c0c63a9c9f03c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84858aa8d00efe2c881276913a949bca0eb441a8ff780f97029c0c63a9c9f03c", kill_on_drop: false }`
[INFO] [stdout] 84858aa8d00efe2c881276913a949bca0eb441a8ff780f97029c0c63a9c9f03c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 898b4666a24fdc6b3babaf304d282b0b7b8ba1b73f2ff596ad93ac3fcee56cc1
[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" "898b4666a24fdc6b3babaf304d282b0b7b8ba1b73f2ff596ad93ac3fcee56cc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking killswitch v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking sharded-slab v0.1.3
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking tracing-subscriber v0.2.19
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.70s
[INFO] running `Command { std: "docker" "inspect" "898b4666a24fdc6b3babaf304d282b0b7b8ba1b73f2ff596ad93ac3fcee56cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898b4666a24fdc6b3babaf304d282b0b7b8ba1b73f2ff596ad93ac3fcee56cc1", kill_on_drop: false }`
[INFO] [stdout] 898b4666a24fdc6b3babaf304d282b0b7b8ba1b73f2ff596ad93ac3fcee56cc1