[INFO] fetching crate serde_qs 0.8.3...
[INFO] checking serde_qs-0.8.3 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate serde_qs 0.8.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate serde_qs 0.8.3 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_qs 0.8.3
[INFO] finished tweaking crates.io crate serde_qs 0.8.3
[INFO] tweaked toml for crates.io crate serde_qs 0.8.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate serde_qs 0.8.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bccd9ba0957ab4c49145537e7928bad0d96d2ee3cb3d5744bbd1b7e3bc8a54b9
[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" "bccd9ba0957ab4c49145537e7928bad0d96d2ee3cb3d5744bbd1b7e3bc8a54b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bccd9ba0957ab4c49145537e7928bad0d96d2ee3cb3d5744bbd1b7e3bc8a54b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bccd9ba0957ab4c49145537e7928bad0d96d2ee3cb3d5744bbd1b7e3bc8a54b9", kill_on_drop: false }`
[INFO] [stdout] bccd9ba0957ab4c49145537e7928bad0d96d2ee3cb3d5744bbd1b7e3bc8a54b9
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e547a75ddeba4b06a09a5d1ec265af1b19b9f870f744b5bc7503cf683fc9ddc
[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" "7e547a75ddeba4b06a09a5d1ec265af1b19b9f870f744b5bc7503cf683fc9ddc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking serde_qs v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.25s
[INFO] running `Command { std: "docker" "inspect" "7e547a75ddeba4b06a09a5d1ec265af1b19b9f870f744b5bc7503cf683fc9ddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e547a75ddeba4b06a09a5d1ec265af1b19b9f870f744b5bc7503cf683fc9ddc", kill_on_drop: false }`
[INFO] [stdout] 7e547a75ddeba4b06a09a5d1ec265af1b19b9f870f744b5bc7503cf683fc9ddc