[INFO] fetching crate qmc 2.15.0...
[INFO] checking qmc-2.15.0 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate qmc 2.15.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate qmc 2.15.0 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qmc 2.15.0
[INFO] finished tweaking crates.io crate qmc 2.15.0
[INFO] tweaked toml for crates.io crate qmc 2.15.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate qmc 2.15.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.119
[INFO] [stderr]   Downloaded rand_isaac v0.3.0
[INFO] [stderr]   Downloaded serde v1.0.119
[INFO] [stderr]   Downloaded strength_reduce v0.2.3
[INFO] [stderr]   Downloaded transpose v0.2.0
[INFO] [stderr]   Downloaded rustfft v5.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31534d5a3bfc8d465cb419e147eb0ed47d24bc6296fda6d56000f7a91783fa2b
[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" "31534d5a3bfc8d465cb419e147eb0ed47d24bc6296fda6d56000f7a91783fa2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31534d5a3bfc8d465cb419e147eb0ed47d24bc6296fda6d56000f7a91783fa2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31534d5a3bfc8d465cb419e147eb0ed47d24bc6296fda6d56000f7a91783fa2b", kill_on_drop: false }`
[INFO] [stdout] 31534d5a3bfc8d465cb419e147eb0ed47d24bc6296fda6d56000f7a91783fa2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75d26af210d3124788f0afe300c5aec216957cfae635f22742cb020ababe1c14
[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" "75d26af210d3124788f0afe300c5aec216957cfae635f22742cb020ababe1c14", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand_isaac v0.3.0
[INFO] [stderr]     Checking rand v0.8.1
[INFO] [stderr]     Checking qmc v2.15.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.33s
[INFO] running `Command { std: "docker" "inspect" "75d26af210d3124788f0afe300c5aec216957cfae635f22742cb020ababe1c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75d26af210d3124788f0afe300c5aec216957cfae635f22742cb020ababe1c14", kill_on_drop: false }`
[INFO] [stdout] 75d26af210d3124788f0afe300c5aec216957cfae635f22742cb020ababe1c14