[INFO] cloning repository https://github.com/gcxfd/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gcxfd/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgcxfd%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgcxfd%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99ede10cf7a6d2e63bb391d921f2e7d20451625b
[INFO] testing gcxfd/rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgcxfd%2Frust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gcxfd/rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gcxfd/rust
[INFO] finished tweaking git repo https://github.com/gcxfd/rust
[INFO] tweaked toml for git repo https://github.com/gcxfd/rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/gcxfd/rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "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] 8cb548feb8a9bd644550ecedcf2c103dc9ad8315a8716153c9e8d5b509b7a7ab
[INFO] running `Command { std: "docker" "start" "-a" "8cb548feb8a9bd644550ecedcf2c103dc9ad8315a8716153c9e8d5b509b7a7ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cb548feb8a9bd644550ecedcf2c103dc9ad8315a8716153c9e8d5b509b7a7ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cb548feb8a9bd644550ecedcf2c103dc9ad8315a8716153c9e8d5b509b7a7ab", kill_on_drop: false }`
[INFO] [stdout] 8cb548feb8a9bd644550ecedcf2c103dc9ad8315a8716153c9e8d5b509b7a7ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "build" "--frozen" "--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] 15e3f6c6920fe5878d77c5f9051642df05687049578f93fa5740636314961317
[INFO] running `Command { std: "docker" "start" "-a" "15e3f6c6920fe5878d77c5f9051642df05687049578f93fa5740636314961317", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling signal-hook v0.3.6
[INFO] [stderr]    Compiling zstd-safe v3.0.0+zstd.1.4.8
[INFO] [stderr]    Compiling subtle-ng v2.4.1
[INFO] [stderr]    Compiling signature v1.3.0
[INFO] [stderr]    Compiling machine-uid v0.2.0
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling ed25519 v1.0.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.2
[INFO] [stderr]    Compiling backtrace v0.3.56
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling ctr v0.6.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling nb-connect v1.0.3
[INFO] [stderr]    Compiling polyval v0.4.5
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling blake2 v0.9.1
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling ghash v0.3.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling aes-gcm v0.8.0
[INFO] [stderr]    Compiling zstd-sys v1.4.19+zstd.1.4.8
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling zeroize v1.2.0
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling fern v0.6.0
[INFO] [stderr]    Compiling sled v0.34.6
[INFO] [stderr]    Compiling curve25519-dalek-ng v4.0.1
[INFO] [stderr]    Compiling async-io v1.3.1
[INFO] [stderr]    Compiling curve25519-dalek v3.0.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling async-process v1.0.2
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling ed25519-dalek-blake2b v1.0.2
[INFO] [stderr]    Compiling x25519-dalek v1.1.0
[INFO] [stderr]    Compiling async-std v1.9.0
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling zstd v0.6.0+zstd.1.4.8
[INFO] [stderr]    Compiling rmw-srv v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `milli`
[INFO] [stdout]  --> src/listen.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::lib::now::{milli, sec};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]   --> src/lib/connecting.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn pop(&self, ip: &Key) -> bool {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `milli`
[INFO] [stdout]   --> src/lib/now.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn milli() -> u128 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "15e3f6c6920fe5878d77c5f9051642df05687049578f93fa5740636314961317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15e3f6c6920fe5878d77c5f9051642df05687049578f93fa5740636314961317", kill_on_drop: false }`
[INFO] [stdout] 15e3f6c6920fe5878d77c5f9051642df05687049578f93fa5740636314961317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0dabf8e1d1e7604dbc6020043086622cb883228e72ea3d0d513a21558f7fc10
[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" "b0dabf8e1d1e7604dbc6020043086622cb883228e72ea3d0d513a21558f7fc10", kill_on_drop: false }`
[INFO] [stderr]    Compiling rmw-srv v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `milli`
[INFO] [stdout]  --> src/listen.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::lib::now::{milli, sec};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]   --> src/lib/connecting.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn pop(&self, ip: &Key) -> bool {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `milli`
[INFO] [stdout]   --> src/lib/now.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn milli() -> u128 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "b0dabf8e1d1e7604dbc6020043086622cb883228e72ea3d0d513a21558f7fc10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0dabf8e1d1e7604dbc6020043086622cb883228e72ea3d0d513a21558f7fc10", kill_on_drop: false }`
[INFO] [stdout] b0dabf8e1d1e7604dbc6020043086622cb883228e72ea3d0d513a21558f7fc10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f1ea09327764f5f2a06f9033eab6045a67173e0ecd06596319d77f29d4ee4774
[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" "f1ea09327764f5f2a06f9033eab6045a67173e0ecd06596319d77f29d4ee4774", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `milli`
[INFO] [stderr]  --> src/listen.rs:3:23
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::lib::now::{milli, sec};
[INFO] [stderr]   |                       ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop`
[INFO] [stderr]   --> src/lib/connecting.rs:33:10
[INFO] [stderr]    |
[INFO] [stderr] 33 |   pub fn pop(&self, ip: &Key) -> bool {
[INFO] [stderr]    |          ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `milli`
[INFO] [stderr]   --> src/lib/now.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn milli() -> u128 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rmw-srv` (bin "rmw-srv" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rmw_srv-76921f71e08c308d)
[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" "f1ea09327764f5f2a06f9033eab6045a67173e0ecd06596319d77f29d4ee4774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1ea09327764f5f2a06f9033eab6045a67173e0ecd06596319d77f29d4ee4774", kill_on_drop: false }`
[INFO] [stdout] f1ea09327764f5f2a06f9033eab6045a67173e0ecd06596319d77f29d4ee4774