[INFO] fetching crate postoffice 0.0.22...
[INFO] checking postoffice-0.0.22 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate postoffice 0.0.22 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate postoffice 0.0.22 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate postoffice 0.0.22
[INFO] finished tweaking crates.io crate postoffice 0.0.22
[INFO] tweaked toml for crates.io crate postoffice 0.0.22 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate postoffice 0.0.22 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c38e2fb056a14933301a78ead93cc06999c4bad7ec4491714a460c5752becfe3
[INFO] running `Command { std: "docker" "start" "-a" "c38e2fb056a14933301a78ead93cc06999c4bad7ec4491714a460c5752becfe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c38e2fb056a14933301a78ead93cc06999c4bad7ec4491714a460c5752becfe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c38e2fb056a14933301a78ead93cc06999c4bad7ec4491714a460c5752becfe3", kill_on_drop: false }`
[INFO] [stdout] c38e2fb056a14933301a78ead93cc06999c4bad7ec4491714a460c5752becfe3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9af79d9f68f62ea3f8f5ae33941f184d171aad5b0eb441501228cc5072f4f464
[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" "9af79d9f68f62ea3f8f5ae33941f184d171aad5b0eb441501228cc5072f4f464", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking json v0.12.1
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking aead v0.2.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking polyval v0.3.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking aes-gcm v0.3.0
[INFO] [stderr]     Checking postoffice v0.0.22 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.69s
[INFO] running `Command { std: "docker" "inspect" "9af79d9f68f62ea3f8f5ae33941f184d171aad5b0eb441501228cc5072f4f464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9af79d9f68f62ea3f8f5ae33941f184d171aad5b0eb441501228cc5072f4f464", kill_on_drop: false }`
[INFO] [stdout] 9af79d9f68f62ea3f8f5ae33941f184d171aad5b0eb441501228cc5072f4f464