[INFO] cloning repository https://github.com/jessym/rust-tcp-from-scratch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jessym/rust-tcp-from-scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjessym%2Frust-tcp-from-scratch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjessym%2Frust-tcp-from-scratch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfa5e306a56d24d4936ecffce120256827ec4d68
[INFO] checking jessym/rust-tcp-from-scratch against try#724e78794d2cf06eef820a24c9a4608d63435e1d for pr-149145
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjessym%2Frust-tcp-from-scratch" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jessym/rust-tcp-from-scratch
[INFO] finished tweaking git repo https://github.com/jessym/rust-tcp-from-scratch
[INFO] tweaked toml for git repo https://github.com/jessym/rust-tcp-from-scratch written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jessym/rust-tcp-from-scratch on toolchain 724e78794d2cf06eef820a24c9a4608d63435e1d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jessym/rust-tcp-from-scratch 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" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "fetch" "--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-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 296befc33686b5d5edad8cf515b1e6ec71370280cc866d7e3be6f846fcf63eed
[INFO] running `Command { std: "docker" "start" "-a" "296befc33686b5d5edad8cf515b1e6ec71370280cc866d7e3be6f846fcf63eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "296befc33686b5d5edad8cf515b1e6ec71370280cc866d7e3be6f846fcf63eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296befc33686b5d5edad8cf515b1e6ec71370280cc866d7e3be6f846fcf63eed", kill_on_drop: false }`
[INFO] [stdout] 296befc33686b5d5edad8cf515b1e6ec71370280cc866d7e3be6f846fcf63eed
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8f75b52e00234be57e0cc1ef18de8626a958b54eb87f6e7a6c15d0977e5b4d0
[INFO] running `Command { std: "docker" "start" "-a" "c8f75b52e00234be57e0cc1ef18de8626a958b54eb87f6e7a6c15d0977e5b4d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking etherparse v0.14.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stdout] error[E0659]: `NetSlice` is ambiguous
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/etherparse-0.14.3/src/net/net_slice.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub use NetSlice as InternetSlice;
[INFO] [stdout]    |         ^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and a macro-expanded name in the same module during import or macro resolution
[INFO] [stdout] note: `NetSlice` could refer to the enum defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/etherparse-0.14.3/src/net/net_slice.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / pub enum NetSlice<'a> {
[INFO] [stdout] 14 | |     /// The ipv4 header & the decoded extension headers.
[INFO] [stdout] 15 | |     Ipv4(Ipv4Slice<'a>),
[INFO] [stdout] 16 | |     /// The ipv6 header & the decoded extension headers.
[INFO] [stdout] 17 | |     Ipv6(Ipv6Slice<'a>),
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] note: `NetSlice` could also refer to the enum imported here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/etherparse-0.14.3/src/net/net_slice.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout]  1 | use crate::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `NetSlice` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]    Compiling tun-tap v0.1.4
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `etherparse` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c8f75b52e00234be57e0cc1ef18de8626a958b54eb87f6e7a6c15d0977e5b4d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8f75b52e00234be57e0cc1ef18de8626a958b54eb87f6e7a6c15d0977e5b4d0", kill_on_drop: false }`
[INFO] [stdout] c8f75b52e00234be57e0cc1ef18de8626a958b54eb87f6e7a6c15d0977e5b4d0