[INFO] cloning repository https://github.com/fraserdarwent/docker-rust-echo-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fraserdarwent/docker-rust-echo-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffraserdarwent%2Fdocker-rust-echo-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffraserdarwent%2Fdocker-rust-echo-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a631fac6748003f5df32759663a36262ba94ee24
[INFO] checking fraserdarwent/docker-rust-echo-server against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffraserdarwent%2Fdocker-rust-echo-server" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fraserdarwent/docker-rust-echo-server on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fraserdarwent/docker-rust-echo-server
[INFO] finished tweaking git repo https://github.com/fraserdarwent/docker-rust-echo-server
[INFO] tweaked toml for git repo https://github.com/fraserdarwent/docker-rust-echo-server written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/fraserdarwent/docker-rust-echo-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] 7ec2c4ccb0e449e7a99d360d9a8d0f068bb0cbba46486126dbd0fdd2d04c58c0
[INFO] running `Command { std: "docker" "start" "-a" "7ec2c4ccb0e449e7a99d360d9a8d0f068bb0cbba46486126dbd0fdd2d04c58c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ec2c4ccb0e449e7a99d360d9a8d0f068bb0cbba46486126dbd0fdd2d04c58c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec2c4ccb0e449e7a99d360d9a8d0f068bb0cbba46486126dbd0fdd2d04c58c0", kill_on_drop: false }`
[INFO] [stdout] 7ec2c4ccb0e449e7a99d360d9a8d0f068bb0cbba46486126dbd0fdd2d04c58c0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a017ebdf1bbb67cc163e0baf6cd88bd5ec67dadd3bd3a52c04c14840f39144f
[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" "9a017ebdf1bbb67cc163e0baf6cd88bd5ec67dadd3bd3a52c04c14840f39144f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking chunked_transfer v0.3.1
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking ascii v0.8.7
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]     Checking gzip-header v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking brotli-sys v0.3.2
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking filetime v0.2.9
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking threadpool v1.8.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking tiny_http v0.6.2
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking multipart v0.15.4
[INFO] [stderr]     Checking ctrlc v3.1.4
[INFO] [stderr]     Checking rouille v3.0.0
[INFO] [stderr]     Checking docker-rust-echo-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "9a017ebdf1bbb67cc163e0baf6cd88bd5ec67dadd3bd3a52c04c14840f39144f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a017ebdf1bbb67cc163e0baf6cd88bd5ec67dadd3bd3a52c04c14840f39144f", kill_on_drop: false }`
[INFO] [stdout] 9a017ebdf1bbb67cc163e0baf6cd88bd5ec67dadd3bd3a52c04c14840f39144f