[INFO] fetching crate erbium 0.2.4...
[INFO] checking erbium-0.2.4 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate erbium 0.2.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate erbium 0.2.4 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate erbium 0.2.4
[INFO] finished tweaking crates.io crate erbium 0.2.4
[INFO] tweaked toml for crates.io crate erbium 0.2.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate erbium 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded netlink-sys v0.4.0
[INFO] [stderr]   Downloaded netlink-packet-core v0.2.2
[INFO] [stderr]   Downloaded netlink-packet-route v0.5.0
[INFO] [stderr]   Downloaded tokio-util v0.5.0
[INFO] [stderr]   Downloaded tokio-compat-02 v0.1.2
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9960658f1bc500e549e28f842c2e67ce550a88b3feb9dea8ab490615cc8555e
[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" "a9960658f1bc500e549e28f842c2e67ce550a88b3feb9dea8ab490615cc8555e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9960658f1bc500e549e28f842c2e67ce550a88b3feb9dea8ab490615cc8555e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9960658f1bc500e549e28f842c2e67ce550a88b3feb9dea8ab490615cc8555e", kill_on_drop: false }`
[INFO] [stdout] a9960658f1bc500e549e28f842c2e67ce550a88b3feb9dea8ab490615cc8555e
[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=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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1cbd9b409a00d6952de675d494377fb4003a4a18ffc9842fa2e1cada3437c1d
[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" "e1cbd9b409a00d6952de675d494377fb4003a4a18ffc9842fa2e1cada3437c1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling paste v1.0.3
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling tokio v0.3.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.36
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rusqlite v0.23.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tokio v0.2.23
[INFO] [stderr]    Compiling vergen v3.1.0
[INFO] [stderr]    Compiling erbium v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking netlink-packet-utils v0.4.0
[INFO] [stderr]     Checking netlink-packet-utils v0.3.0
[INFO] [stderr]     Checking netlink-packet-core v0.2.2
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking netlink-packet-route v0.5.0
[INFO] [stderr]     Checking tokio-compat-02 v0.1.2
[INFO] [stderr]     Checking tokio-util v0.5.0
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking netlink-sys v0.4.0
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/net/netinfo.rs:463:10
[INFO] [stdout]     |
[INFO] [stdout] 463 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/net/netinfo.rs:463:10
[INFO] [stdout]     |
[INFO] [stdout] 463 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `broadcast_failed_renew`
[INFO] [stdout]    --> src/dhcp/test.rs:250:4
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn broadcast_failed_renew() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dhcpinform_dont_check_existing_lease`
[INFO] [stdout]    --> src/dhcp/test.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn dhcpinform_dont_check_existing_lease() {
[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 22s
[INFO] running `Command { std: "docker" "inspect" "e1cbd9b409a00d6952de675d494377fb4003a4a18ffc9842fa2e1cada3437c1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1cbd9b409a00d6952de675d494377fb4003a4a18ffc9842fa2e1cada3437c1d", kill_on_drop: false }`
[INFO] [stdout] e1cbd9b409a00d6952de675d494377fb4003a4a18ffc9842fa2e1cada3437c1d