[INFO] cloning repository https://github.com/GustavoKatel/devcontainers-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GustavoKatel/devcontainers-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoKatel%2Fdevcontainers-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoKatel%2Fdevcontainers-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87b8f6b5b64c20b64f76c5669e16314bcb1e75a3
[INFO] checking GustavoKatel/devcontainers-rs against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustavoKatel%2Fdevcontainers-rs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GustavoKatel/devcontainers-rs on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GustavoKatel/devcontainers-rs
[INFO] finished tweaking git repo https://github.com/GustavoKatel/devcontainers-rs
[INFO] tweaked toml for git repo https://github.com/GustavoKatel/devcontainers-rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/GustavoKatel/devcontainers-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] c06b3c47ec218b5dbb94971129f35448a1f01bcfcb8c74750ce107b86e9ab386
[INFO] running `Command { std: "docker" "start" "-a" "c06b3c47ec218b5dbb94971129f35448a1f01bcfcb8c74750ce107b86e9ab386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c06b3c47ec218b5dbb94971129f35448a1f01bcfcb8c74750ce107b86e9ab386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c06b3c47ec218b5dbb94971129f35448a1f01bcfcb8c74750ce107b86e9ab386", kill_on_drop: false }`
[INFO] [stdout] c06b3c47ec218b5dbb94971129f35448a1f01bcfcb8c74750ce107b86e9ab386
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] e4c32c3aeeac8bf4d7bf6da4049e9d99788489bbec8230578b2983f22ac864b7
[INFO] running `Command { std: "docker" "start" "-a" "e4c32c3aeeac8bf4d7bf6da4049e9d99788489bbec8230578b2983f22ac864b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking ct-logs v0.7.0
[INFO] [stderr]     Checking tar v0.4.30
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking rustls-native-certs v0.4.0
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling serde_with_macros v1.2.2
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-rustls v0.14.1
[INFO] [stderr]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures v0.3.6
[INFO] [stderr]     Checking serde_with v1.5.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking json5 v0.2.8
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking bollard-stubs v1.40.6
[INFO] [stderr]     Checking hyper-unix-connector v0.1.5
[INFO] [stderr]     Checking hyper-rustls v0.21.0
[INFO] [stderr]     Checking bollard v0.8.0
[INFO] [stderr]     Checking devcontainers-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Deserializer`, `de`
[INFO] [stdout]  --> src/settings.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{de, Deserialize, Deserializer};
[INFO] [stdout]   |             ^^               ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserializer`, `de`
[INFO] [stdout]  --> src/settings.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{de, Deserialize, Deserializer};
[INFO] [stdout]   |             ^^               ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExecCommand`
[INFO] [stdout]   --> src/errors.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     ExecCommand(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExecCommand`
[INFO] [stdout]   --> src/errors.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     ExecCommand(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "e4c32c3aeeac8bf4d7bf6da4049e9d99788489bbec8230578b2983f22ac864b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4c32c3aeeac8bf4d7bf6da4049e9d99788489bbec8230578b2983f22ac864b7", kill_on_drop: false }`
[INFO] [stdout] e4c32c3aeeac8bf4d7bf6da4049e9d99788489bbec8230578b2983f22ac864b7