[INFO] fetching crate gag 0.1.10...
[INFO] checking gag-0.1.10 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate gag 0.1.10 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gag 0.1.10 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gag 0.1.10
[INFO] finished tweaking crates.io crate gag 0.1.10
[INFO] tweaked toml for crates.io crate gag 0.1.10 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f7458d14bf6f17d0620eb35985a54285e9eefd793db21d0faf408fe47a0dc20
[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" "3f7458d14bf6f17d0620eb35985a54285e9eefd793db21d0faf408fe47a0dc20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f7458d14bf6f17d0620eb35985a54285e9eefd793db21d0faf408fe47a0dc20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f7458d14bf6f17d0620eb35985a54285e9eefd793db21d0faf408fe47a0dc20", kill_on_drop: false }`
[INFO] [stdout] 3f7458d14bf6f17d0620eb35985a54285e9eefd793db21d0faf408fe47a0dc20
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] ee1f46bbf0d2e5525756bf18c9947330f34eefdc4c7e9d5154630091a477e8b7
[INFO] running `Command { std: "docker" "start" "-a" "ee1f46bbf0d2e5525756bf18c9947330f34eefdc4c7e9d5154630091a477e8b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking gag v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/redirect.rs:25:32
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/redirect.rs:6:47
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::sync::atomic::{AtomicBool, Ordering, ATOMIC_BOOL_INIT};
[INFO] [stdout]   |                                               ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/redirect.rs:8:43
[INFO] [stdout]   |
[INFO] [stdout] 8 | static REDIRECT_FLAGS: [AtomicBool; 3] = [ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT];
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicBool::new(false)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/redirect.rs:8:61
[INFO] [stdout]   |
[INFO] [stdout] 8 | static REDIRECT_FLAGS: [AtomicBool; 3] = [ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT];
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicBool::new(false)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/redirect.rs:8:79
[INFO] [stdout]   |
[INFO] [stdout] 8 | static REDIRECT_FLAGS: [AtomicBool; 3] = [ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT];
[INFO] [stdout]   |                                                                               ^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicBool::new(false)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/redirect.rs:25:32
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/redirect.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 |         self.error.description()
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/redirect.rs:6:47
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::sync::atomic::{AtomicBool, Ordering, ATOMIC_BOOL_INIT};
[INFO] [stdout]   |                                               ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/redirect.rs:8:43
[INFO] [stdout]   |
[INFO] [stdout] 8 | static REDIRECT_FLAGS: [AtomicBool; 3] = [ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT];
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicBool::new(false)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/redirect.rs:8:61
[INFO] [stdout]   |
[INFO] [stdout] 8 | static REDIRECT_FLAGS: [AtomicBool; 3] = [ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT];
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicBool::new(false)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/redirect.rs:8:79
[INFO] [stdout]   |
[INFO] [stdout] 8 | static REDIRECT_FLAGS: [AtomicBool; 3] = [ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT, ATOMIC_BOOL_INIT];
[INFO] [stdout]   |                                                                               ^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicBool::new(false)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/redirect.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 |         self.error.description()
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.54s
[INFO] running `Command { std: "docker" "inspect" "ee1f46bbf0d2e5525756bf18c9947330f34eefdc4c7e9d5154630091a477e8b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee1f46bbf0d2e5525756bf18c9947330f34eefdc4c7e9d5154630091a477e8b7", kill_on_drop: false }`
[INFO] [stdout] ee1f46bbf0d2e5525756bf18c9947330f34eefdc4c7e9d5154630091a477e8b7