[INFO] fetching crate grammers 0.1.0...
[INFO] checking grammers-0.1.0 against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] extracting crate grammers 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate grammers 0.1.0 on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grammers 0.1.0
[INFO] finished tweaking crates.io crate grammers 0.1.0
[INFO] tweaked toml for crates.io crate grammers 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate grammers 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96a7cb9f9b3fa485e15892fb2dee0e484bf38c6582f87fa0219fa9d15ad7738a
[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" "96a7cb9f9b3fa485e15892fb2dee0e484bf38c6582f87fa0219fa9d15ad7738a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96a7cb9f9b3fa485e15892fb2dee0e484bf38c6582f87fa0219fa9d15ad7738a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96a7cb9f9b3fa485e15892fb2dee0e484bf38c6582f87fa0219fa9d15ad7738a", kill_on_drop: false }`
[INFO] [stdout] 96a7cb9f9b3fa485e15892fb2dee0e484bf38c6582f87fa0219fa9d15ad7738a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cfe70cbd68e8267f685c78eeba967a24eec20ed096593c5b90c144b2602bf53
[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" "5cfe70cbd68e8267f685c78eeba967a24eec20ed096593c5b90c144b2602bf53", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling openssl v0.10.27
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking grammers-session v0.1.0
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking miniz_oxide v0.3.5
[INFO] [stderr]    Compiling grammers-tl-parser v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling grammers-tl-types v0.1.0
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking grammers-crypto v0.1.0
[INFO] [stderr]     Checking grammers-mtproto v0.1.0
[INFO] [stderr]     Checking grammers-mtsender v0.1.0
[INFO] [stderr]     Checking grammers-client v0.1.0
[INFO] [stderr]     Checking grammers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.46s
[INFO] running `Command { std: "docker" "inspect" "5cfe70cbd68e8267f685c78eeba967a24eec20ed096593c5b90c144b2602bf53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cfe70cbd68e8267f685c78eeba967a24eec20ed096593c5b90c144b2602bf53", kill_on_drop: false }`
[INFO] [stdout] 5cfe70cbd68e8267f685c78eeba967a24eec20ed096593c5b90c144b2602bf53