[INFO] fetching crate hack_log 0.1.0...
[INFO] checking hack_log-0.1.0 against beta for pr-78714
[INFO] extracting crate hack_log 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate hack_log 0.1.0 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 crates.io crate hack_log 0.1.0
[INFO] finished tweaking crates.io crate hack_log 0.1.0
[INFO] tweaked toml for crates.io crate hack_log 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] ec2468f7787a4322bfaa9e4a257ec70329d5f393e7ea8083e2dfd68badfc4954
[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" "ec2468f7787a4322bfaa9e4a257ec70329d5f393e7ea8083e2dfd68badfc4954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec2468f7787a4322bfaa9e4a257ec70329d5f393e7ea8083e2dfd68badfc4954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec2468f7787a4322bfaa9e4a257ec70329d5f393e7ea8083e2dfd68badfc4954", kill_on_drop: false }`
[INFO] [stdout] ec2468f7787a4322bfaa9e4a257ec70329d5f393e7ea8083e2dfd68badfc4954
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] 995f4c70dd09af69899b163bfa6c4a23678d643a1a2fcdc99224b70259ae8700
[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" "995f4c70dd09af69899b163bfa6c4a23678d643a1a2fcdc99224b70259ae8700", kill_on_drop: false }`
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking hack_log v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | / lazy_static! {
[INFO] [stdout] 18 | |     static ref HACKLOG_INDENT:AtomicUsize = {
[INFO] [stdout] 19 | |         AtomicUsize::new(0)
[INFO] [stdout] 20 | |     };
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `indent`
[INFO] [stdout]   --> src/lib.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn indent() -> usize {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `unindent`
[INFO] [stdout]   --> src/lib.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn unindent() -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | / lazy_static! {
[INFO] [stdout] 18 | |     static ref HACKLOG_INDENT:AtomicUsize = {
[INFO] [stdout] 19 | |         AtomicUsize::new(0)
[INFO] [stdout] 20 | |     };
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "995f4c70dd09af69899b163bfa6c4a23678d643a1a2fcdc99224b70259ae8700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "995f4c70dd09af69899b163bfa6c4a23678d643a1a2fcdc99224b70259ae8700", kill_on_drop: false }`
[INFO] [stdout] 995f4c70dd09af69899b163bfa6c4a23678d643a1a2fcdc99224b70259ae8700