[INFO] fetching crate slog-atomic 3.0.0...
[INFO] checking slog-atomic-3.0.0 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate slog-atomic 3.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate slog-atomic 3.0.0 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-atomic 3.0.0
[INFO] finished tweaking crates.io crate slog-atomic 3.0.0
[INFO] tweaked toml for crates.io crate slog-atomic 3.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate slog-atomic 3.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e0e602409d1158411c5a8d0959430f1978a95b2881916ba01d52b2060278ef2
[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" "1e0e602409d1158411c5a8d0959430f1978a95b2881916ba01d52b2060278ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e0e602409d1158411c5a8d0959430f1978a95b2881916ba01d52b2060278ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e0e602409d1158411c5a8d0959430f1978a95b2881916ba01d52b2060278ef2", kill_on_drop: false }`
[INFO] [stdout] 1e0e602409d1158411c5a8d0959430f1978a95b2881916ba01d52b2060278ef2
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcc4191156cca96084e3377431dc3fe166b92be147aac0f5498fb48136bf1a6a
[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" "fcc4191156cca96084e3377431dc3fe166b92be147aac0f5498fb48136bf1a6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking arc-swap v0.4.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-atomic v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking slog-term v2.4.1
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/signal.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[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]   --> examples/signal.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | / lazy_static! {
[INFO] [stdout] 21 | |     // global atomic switch drain control
[INFO] [stdout] 22 | |     static ref ATOMIC_DRAIN_SWITCH : AtomicSwitchCtrl<(), io::Error> = AtomicSwitch::new(
[INFO] [stdout] 23 | |         Discard.map_err(|_| io::Error::new(io::ErrorKind::Other, "should not happen"))
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |     static ref SWITCH_SCHEDULED: AtomicBool = AtomicBool::new(false);
[INFO] [stdout] 33 | | }
[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: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> examples/signal.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | / lazy_static! {
[INFO] [stdout] 21 | |     // global atomic switch drain control
[INFO] [stdout] 22 | |     static ref ATOMIC_DRAIN_SWITCH : AtomicSwitchCtrl<(), io::Error> = AtomicSwitch::new(
[INFO] [stdout] 23 | |         Discard.map_err(|_| io::Error::new(io::ErrorKind::Other, "should not happen"))
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |     static ref SWITCH_SCHEDULED: AtomicBool = AtomicBool::new(false);
[INFO] [stdout] 33 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> examples/signal.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | / lazy_static! {
[INFO] [stdout] 21 | |     // global atomic switch drain control
[INFO] [stdout] 22 | |     static ref ATOMIC_DRAIN_SWITCH : AtomicSwitchCtrl<(), io::Error> = AtomicSwitch::new(
[INFO] [stdout] 23 | |         Discard.map_err(|_| io::Error::new(io::ErrorKind::Other, "should not happen"))
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |     static ref SWITCH_SCHEDULED: AtomicBool = AtomicBool::new(false);
[INFO] [stdout] 33 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.36s
[INFO] running `Command { std: "docker" "inspect" "fcc4191156cca96084e3377431dc3fe166b92be147aac0f5498fb48136bf1a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc4191156cca96084e3377431dc3fe166b92be147aac0f5498fb48136bf1a6a", kill_on_drop: false }`
[INFO] [stdout] fcc4191156cca96084e3377431dc3fe166b92be147aac0f5498fb48136bf1a6a