[INFO] fetching crate netmod-mem 0.4.0...
[INFO] testing netmod-mem-0.4.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate netmod-mem 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate netmod-mem 0.4.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netmod-mem 0.4.0
[INFO] finished tweaking crates.io crate netmod-mem 0.4.0
[INFO] tweaked toml for crates.io crate netmod-mem 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5764c5b7c2710ed84f48109e9ae6a030511dbabf9ab0aba442074f16cf1117a
[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" "a5764c5b7c2710ed84f48109e9ae6a030511dbabf9ab0aba442074f16cf1117a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5764c5b7c2710ed84f48109e9ae6a030511dbabf9ab0aba442074f16cf1117a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5764c5b7c2710ed84f48109e9ae6a030511dbabf9ab0aba442074f16cf1117a", kill_on_drop: false }`
[INFO] [stdout] a5764c5b7c2710ed84f48109e9ae6a030511dbabf9ab0aba442074f16cf1117a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d8ef23de4b83a835c31440941be5583f01406f5cec5875dc2fb3c09e04f2526
[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" "9d8ef23de4b83a835c31440941be5583f01406f5cec5875dc2fb3c09e04f2526", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling twox-hash v1.6.1
[INFO] [stderr]    Compiling blake2 v0.8.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ratman-identity v0.6.2
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling postcard v0.4.3
[INFO] [stderr]    Compiling conjoiner-engine v1.2.3
[INFO] [stderr]    Compiling async-process v1.2.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling ratman-netmod v0.5.1
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling netmod-mem v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `link_raw`
[INFO] [stdout]   --> src/lib.rs:72:19
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub(crate) fn link_raw(&mut self, io: io::Io) {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.29s
[INFO] running `Command { std: "docker" "inspect" "9d8ef23de4b83a835c31440941be5583f01406f5cec5875dc2fb3c09e04f2526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d8ef23de4b83a835c31440941be5583f01406f5cec5875dc2fb3c09e04f2526", kill_on_drop: false }`
[INFO] [stdout] 9d8ef23de4b83a835c31440941be5583f01406f5cec5875dc2fb3c09e04f2526
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", 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] bf1732455ac6c9cec3fd4b26aeb778b405d7aa4fea4b7c25b0d4d62682cbcb8a
[INFO] running `Command { std: "docker" "start" "-a" "bf1732455ac6c9cec3fd4b26aeb778b405d7aa4fea4b7c25b0d4d62682cbcb8a", kill_on_drop: false }`
[INFO] [stdout] warning: associated function is never used: `link_raw`
[INFO] [stdout]   --> src/lib.rs:72:19
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub(crate) fn link_raw(&mut self, io: io::Io) {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling netmod-mem v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `link_raw`
[INFO] [stdout]   --> src/lib.rs:72:19
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub(crate) fn link_raw(&mut self, io: io::Io) {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `Command { std: "docker" "inspect" "bf1732455ac6c9cec3fd4b26aeb778b405d7aa4fea4b7c25b0d4d62682cbcb8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf1732455ac6c9cec3fd4b26aeb778b405d7aa4fea4b7c25b0d4d62682cbcb8a", kill_on_drop: false }`
[INFO] [stdout] bf1732455ac6c9cec3fd4b26aeb778b405d7aa4fea4b7c25b0d4d62682cbcb8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", 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] f327d4aa523a87a1ffadc6eb495fdfd3046f3f294e1274ee4c9640f98c74f18d
[INFO] running `Command { std: "docker" "start" "-a" "f327d4aa523a87a1ffadc6eb495fdfd3046f3f294e1274ee4c9640f98c74f18d", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `link_raw`
[INFO] [stderr]   --> src/lib.rs:72:19
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub(crate) fn link_raw(&mut self, io: io::Io) {
[INFO] [stderr]    |                   ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `netmod-mem` (lib) generated 1 warning
[INFO] [stderr] warning: `netmod-mem` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/netmod_mem-fcc368ef2423aa01)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-d5acba5cafce417d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test ping_pong ... ok
[INFO] [stdout] test split ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/broadcast.rs (/opt/rustwide/target/debug/deps/broadcast-ebcf840ef4232a1e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests netmod-mem
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f327d4aa523a87a1ffadc6eb495fdfd3046f3f294e1274ee4c9640f98c74f18d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f327d4aa523a87a1ffadc6eb495fdfd3046f3f294e1274ee4c9640f98c74f18d", kill_on_drop: false }`
[INFO] [stdout] f327d4aa523a87a1ffadc6eb495fdfd3046f3f294e1274ee4c9640f98c74f18d