[INFO] fetching crate geph4-vpn-helper 0.2.4...
[INFO] checking geph4-vpn-helper-0.2.4 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate geph4-vpn-helper 0.2.4 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate geph4-vpn-helper 0.2.4 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate geph4-vpn-helper 0.2.4
[INFO] finished tweaking crates.io crate geph4-vpn-helper 0.2.4
[INFO] tweaked toml for crates.io crate geph4-vpn-helper 0.2.4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate geph4-vpn-helper 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uds v0.2.6
[INFO] [stderr]   Downloaded async-process v1.2.0
[INFO] [stderr]   Downloaded fastrand v1.5.0
[INFO] [stderr]   Downloaded async-io v1.6.0
[INFO] [stderr]   Downloaded polling v2.1.0
[INFO] [stderr]   Downloaded signal-hook v0.3.10
[INFO] [stderr]   Downloaded smol v1.2.5
[INFO] [stderr]   Downloaded async-oneshot v0.4.2
[INFO] [stderr]   Downloaded random v0.12.2
[INFO] [stderr]   Downloaded smol-timeout v0.6.0
[INFO] [stderr]   Downloaded geph4-protocol v0.1.1
[INFO] [stderr]   Downloaded nonzero_ext v0.2.0
[INFO] [stderr]   Downloaded serde_bytes v0.11.5
[INFO] [stderr]   Downloaded futures-micro v0.3.1
[INFO] [stderr]   Downloaded argh_shared v0.1.6
[INFO] [stderr]   Downloaded governor v0.3.2
[INFO] [stderr]   Downloaded defmac v0.2.1
[INFO] [stderr]   Downloaded argh_derive v0.1.6
[INFO] [stderr]   Downloaded nix v0.19.1
[INFO] [stderr]   Downloaded syn v1.0.80
[INFO] [stderr]   Downloaded c2-chacha v0.3.1
[INFO] [stderr]   Downloaded im v15.0.0
[INFO] [stderr]   Downloaded ordered-float v2.8.0
[INFO] [stderr]   Downloaded sosistab v0.4.36
[INFO] [stderr]   Downloaded sysinfo v0.18.2
[INFO] [stderr]   Downloaded no-std-compat v0.4.1
[INFO] [stderr]   Downloaded quanta v0.4.1
[INFO] [stderr]   Downloaded arc-swap v1.4.0
[INFO] [stderr]   Downloaded priority-queue v1.2.0
[INFO] [stderr]   Downloaded argh v0.1.6
[INFO] [stderr]   Downloaded arraymap v0.1.1
[INFO] [stderr]   Downloaded bipe v0.1.1
[INFO] [stderr]   Downloaded bloomfilter v1.0.9
[INFO] [stderr]   Downloaded cached_proc_macro v0.6.1
[INFO] [stderr]   Downloaded cached_proc_macro_types v0.1.0
[INFO] [stderr]   Downloaded cached v0.23.0
[INFO] [stderr]   Downloaded special v0.8.1
[INFO] [stderr]   Downloaded rtrb v0.1.4
[INFO] [stderr]   Downloaded zeroize_derive v1.2.0
[INFO] [stderr]   Downloaded reed-solomon-erasure v4.0.2
[INFO] [stderr]   Downloaded smolscale v0.3.16
[INFO] [stderr]   Downloaded simple-mutex v1.1.5
[INFO] [stderr]   Downloaded async-dup v1.2.2
[INFO] [stderr]   Downloaded flume v0.10.9
[INFO] [stderr]   Downloaded async-fs v1.5.0
[INFO] [stderr]   Downloaded async-lock v2.4.0
[INFO] [stderr]   Downloaded async-net v1.6.1
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded tundevice v0.1.4
[INFO] [stderr]   Downloaded probability v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c4811db251332d9a7422007c781221c36fe33b69ce01e92cb1bcbf651f17fca
[INFO] running `Command { std: "docker" "start" "-a" "2c4811db251332d9a7422007c781221c36fe33b69ce01e92cb1bcbf651f17fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c4811db251332d9a7422007c781221c36fe33b69ce01e92cb1bcbf651f17fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c4811db251332d9a7422007c781221c36fe33b69ce01e92cb1bcbf651f17fca", kill_on_drop: false }`
[INFO] [stdout] 2c4811db251332d9a7422007c781221c36fe33b69ce01e92cb1bcbf651f17fca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7099bd99fa5ff72a689fb1870d50adb18fb9dff8f61e274c2958a4fc1d3aa4e
[INFO] running `Command { std: "docker" "start" "-a" "c7099bd99fa5ff72a689fb1870d50adb18fb9dff8f61e274c2958a4fc1d3aa4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5
[INFO] [stdout]      |
[INFO] [stdout] 1155 |     fn decode<D: Decoder>(d: &mut D) -> Result<Cow<'static, T>, D::Error> {
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     the parameter type `T` must be valid for the static lifetime...
[INFO] [stdout]      |     ...so that the type `T` will meet its required lifetime bounds...
[INFO] [stdout]      |
[INFO] [stdout] note: ...that is required by this bound
[INFO] [stdout]     --> /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/alloc/src/borrow.rs:180:30
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]      |
[INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T>
[INFO] [stdout]      |                    +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking polling v2.1.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0310`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c7099bd99fa5ff72a689fb1870d50adb18fb9dff8f61e274c2958a4fc1d3aa4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7099bd99fa5ff72a689fb1870d50adb18fb9dff8f61e274c2958a4fc1d3aa4e", kill_on_drop: false }`
[INFO] [stdout] c7099bd99fa5ff72a689fb1870d50adb18fb9dff8f61e274c2958a4fc1d3aa4e
[INFO] checking geph4-vpn-helper-0.2.4 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate geph4-vpn-helper 0.2.4 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate geph4-vpn-helper 0.2.4 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate geph4-vpn-helper 0.2.4
[INFO] finished tweaking crates.io crate geph4-vpn-helper 0.2.4
[INFO] tweaked toml for crates.io crate geph4-vpn-helper 0.2.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate geph4-vpn-helper 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 261e7a2a7d8b7b42639727f4ebe61dd5d2353f045d7601e8701d47e0e87e7cf3
[INFO] running `Command { std: "docker" "start" "-a" "261e7a2a7d8b7b42639727f4ebe61dd5d2353f045d7601e8701d47e0e87e7cf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "261e7a2a7d8b7b42639727f4ebe61dd5d2353f045d7601e8701d47e0e87e7cf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "261e7a2a7d8b7b42639727f4ebe61dd5d2353f045d7601e8701d47e0e87e7cf3", kill_on_drop: false }`
[INFO] [stdout] 261e7a2a7d8b7b42639727f4ebe61dd5d2353f045d7601e8701d47e0e87e7cf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27d24145964d71eeed3b8f7d1599f5e2c6bf66f5789c33e6128c2ac3b3508e87
[INFO] running `Command { std: "docker" "start" "-a" "27d24145964d71eeed3b8f7d1599f5e2c6bf66f5789c33e6128c2ac3b3508e87", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5
[INFO] [stdout]      |
[INFO] [stdout] 1155 |     fn decode<D: Decoder>(d: &mut D) -> Result<Cow<'static, T>, D::Error> {
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     the parameter type `T` must be valid for the static lifetime...
[INFO] [stdout]      |     ...so that the type `T` will meet its required lifetime bounds...
[INFO] [stdout]      |
[INFO] [stdout] note: ...that is required by this bound
[INFO] [stdout]     --> /rustc/9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88/library/alloc/src/borrow.rs:180:30
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]      |
[INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T>
[INFO] [stdout]      |                    +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking polling v2.1.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0310`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "27d24145964d71eeed3b8f7d1599f5e2c6bf66f5789c33e6128c2ac3b3508e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27d24145964d71eeed3b8f7d1599f5e2c6bf66f5789c33e6128c2ac3b3508e87", kill_on_drop: false }`
[INFO] [stdout] 27d24145964d71eeed3b8f7d1599f5e2c6bf66f5789c33e6128c2ac3b3508e87
