[INFO] fetching crate wesers 0.4.1...
[INFO] checking wesers-0.4.1 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate wesers 0.4.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate wesers 0.4.1 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wesers 0.4.1
[INFO] finished tweaking crates.io crate wesers 0.4.1
[INFO] tweaked toml for crates.io crate wesers 0.4.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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] a5e3cf1eb73ce663c098c45f93368ec735fa7328ee1b07358bf980e195a2ed77
[INFO] running `Command { std: "docker" "start" "-a" "a5e3cf1eb73ce663c098c45f93368ec735fa7328ee1b07358bf980e195a2ed77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5e3cf1eb73ce663c098c45f93368ec735fa7328ee1b07358bf980e195a2ed77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5e3cf1eb73ce663c098c45f93368ec735fa7328ee1b07358bf980e195a2ed77", kill_on_drop: false }`
[INFO] [stdout] a5e3cf1eb73ce663c098c45f93368ec735fa7328ee1b07358bf980e195a2ed77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31ed2c65a4c4e7e646ba43d884c77ca1b8480ec643836bc90c1e26b2e8232ea5
[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" "31ed2c65a4c4e7e646ba43d884c77ca1b8480ec643836bc90c1e26b2e8232ea5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]     Checking sequence_trie v0.0.13
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking mustache v0.7.0
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking hyper v0.9.18
[INFO] [stderr]     Checking iron v0.4.0
[INFO] [stderr]     Checking mount v0.2.1
[INFO] [stderr]     Checking logger v0.1.0
[INFO] [stderr]     Checking staticfile v0.3.1
[INFO] [stderr]    Compiling wesers v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `OUT_DIR` not defined
[INFO] [stdout]   --> build.rs:10:38
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let cargo_target_dir = Path::new(env!("OUT_DIR"))
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wesers`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "31ed2c65a4c4e7e646ba43d884c77ca1b8480ec643836bc90c1e26b2e8232ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31ed2c65a4c4e7e646ba43d884c77ca1b8480ec643836bc90c1e26b2e8232ea5", kill_on_drop: false }`
[INFO] [stdout] 31ed2c65a4c4e7e646ba43d884c77ca1b8480ec643836bc90c1e26b2e8232ea5