[INFO] fetching crate lox-lang 0.0.3...
[INFO] checking lox-lang-0.0.3 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate lox-lang 0.0.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate lox-lang 0.0.3 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lox-lang 0.0.3
[INFO] finished tweaking crates.io crate lox-lang 0.0.3
[INFO] tweaked toml for crates.io crate lox-lang 0.0.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate lox-lang 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 6102e5f5f14102fa8591b50f7b6f4cdf825a249cc6ee207ea83f796849607e0b
[INFO] running `Command { std: "docker" "start" "-a" "6102e5f5f14102fa8591b50f7b6f4cdf825a249cc6ee207ea83f796849607e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6102e5f5f14102fa8591b50f7b6f4cdf825a249cc6ee207ea83f796849607e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6102e5f5f14102fa8591b50f7b6f4cdf825a249cc6ee207ea83f796849607e0b", kill_on_drop: false }`
[INFO] [stdout] 6102e5f5f14102fa8591b50f7b6f4cdf825a249cc6ee207ea83f796849607e0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4540cf35fe454ea7537bad145406a7c91dc264979cd5162de29e44257c5c7f51
[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" "4540cf35fe454ea7537bad145406a7c91dc264979cd5162de29e44257c5c7f51", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking os_str_bytes v2.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking simplelog v0.7.6
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking jemallocator v0.3.2
[INFO] [stderr]     Checking lox-lang v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `CallStackOverflow`
[INFO] [stdout]   --> src/vm/errors.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     CallStackOverflow,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ValueStackOverflow`
[INFO] [stdout]   --> src/vm/errors.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ValueStackOverflow,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CallStackOverflow`
[INFO] [stdout]   --> src/vm/errors.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     CallStackOverflow,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ValueStackOverflow`
[INFO] [stdout]   --> src/vm/errors.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ValueStackOverflow,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 26s
[INFO] running `Command { std: "docker" "inspect" "4540cf35fe454ea7537bad145406a7c91dc264979cd5162de29e44257c5c7f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4540cf35fe454ea7537bad145406a7c91dc264979cd5162de29e44257c5c7f51", kill_on_drop: false }`
[INFO] [stdout] 4540cf35fe454ea7537bad145406a7c91dc264979cd5162de29e44257c5c7f51