[INFO] cloning repository https://github.com/Lblenner/linxv2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lblenner/linxv2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLblenner%2Flinxv2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLblenner%2Flinxv2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 286be45cf0a40b3a14b5752a57647fb3e58179de
[INFO] checking Lblenner/linxv2 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLblenner%2Flinxv2" "/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/Lblenner/linxv2 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Lblenner/linxv2
[INFO] finished tweaking git repo https://github.com/Lblenner/linxv2
[INFO] tweaked toml for git repo https://github.com/Lblenner/linxv2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Lblenner/linxv2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook v0.3.6
[INFO] [stderr]   Downloaded async-tungstenite v0.13.0
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] e3e130ccc8544cf38e025554a9b20a766b7cf8f26173f638b0c9bb7ff3eb8f2f
[INFO] running `Command { std: "docker" "start" "-a" "e3e130ccc8544cf38e025554a9b20a766b7cf8f26173f638b0c9bb7ff3eb8f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3e130ccc8544cf38e025554a9b20a766b7cf8f26173f638b0c9bb7ff3eb8f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3e130ccc8544cf38e025554a9b20a766b7cf8f26173f638b0c9bb7ff3eb8f2f", kill_on_drop: false }`
[INFO] [stdout] e3e130ccc8544cf38e025554a9b20a766b7cf8f26173f638b0c9bb7ff3eb8f2f
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 055a2103fbd8409d8a5f41a23d23bb03f2029b7e89bcbb7db352f0dd711a4ce7
[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" "055a2103fbd8409d8a5f41a23d23bb03f2029b7e89bcbb7db352f0dd711a4ce7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling signal-hook v0.3.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.2
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking sha-1 v0.9.4
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking nb-connect v1.0.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking tungstenite v0.13.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-process v1.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking async-tungstenite v0.13.0
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking linxv2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "055a2103fbd8409d8a5f41a23d23bb03f2029b7e89bcbb7db352f0dd711a4ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "055a2103fbd8409d8a5f41a23d23bb03f2029b7e89bcbb7db352f0dd711a4ce7", kill_on_drop: false }`
[INFO] [stdout] 055a2103fbd8409d8a5f41a23d23bb03f2029b7e89bcbb7db352f0dd711a4ce7