[INFO] cloning repository https://github.com/0x7CFE/cortex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0x7CFE/cortex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x7CFE%2Fcortex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x7CFE%2Fcortex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f901670b230530e692eec001e99f5be798989519
[INFO] checking 0x7CFE/cortex against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0x7CFE%2Fcortex" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0x7CFE/cortex on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0x7CFE/cortex
[INFO] finished tweaking git repo https://github.com/0x7CFE/cortex
[INFO] tweaked toml for git repo https://github.com/0x7CFE/cortex written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/0x7CFE/cortex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "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] ab8796c86f149ccf2b9208ab304f45131e6767919fe179ac9ec52f446f629e9e
[INFO] running `Command { std: "docker" "start" "-a" "ab8796c86f149ccf2b9208ab304f45131e6767919fe179ac9ec52f446f629e9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab8796c86f149ccf2b9208ab304f45131e6767919fe179ac9ec52f446f629e9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab8796c86f149ccf2b9208ab304f45131e6767919fe179ac9ec52f446f629e9e", kill_on_drop: false }`
[INFO] [stdout] ab8796c86f149ccf2b9208ab304f45131e6767919fe179ac9ec52f446f629e9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "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] a7a4c42775e7ae622bf1d9d0927be9d21ab128c65abe92688a8dd27d953694b8
[INFO] running `Command { std: "docker" "start" "-a" "a7a4c42775e7ae622bf1d9d0927be9d21ab128c65abe92688a8dd27d953694b8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]    Compiling rayon-core v1.0.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking rustc-serialize v0.3.23
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking serde v0.9.14
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking hound v3.1.0
[INFO] [stderr]     Checking bit-vec v0.4.3
[INFO] [stderr]     Checking sample v0.6.2
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]    Compiling syn v0.11.10
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num_cpus v1.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking clap v2.23.2
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]     Checking rayon v0.7.0
[INFO] [stderr]    Compiling serde_derive v0.9.14
[INFO] [stderr]     Checking num-complex v0.1.37
[INFO] [stderr]     Checking dft v0.5.4
[INFO] [stderr]     Checking bincode v1.0.0-alpha7
[INFO] [stderr]     Checking cortex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(conservative_impl_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(btree_range, collections_bound)]
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(btree_range, collections_bound)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(conservative_impl_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(btree_range, collections_bound)]
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(btree_range, collections_bound)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.53s
[INFO] running `Command { std: "docker" "inspect" "a7a4c42775e7ae622bf1d9d0927be9d21ab128c65abe92688a8dd27d953694b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7a4c42775e7ae622bf1d9d0927be9d21ab128c65abe92688a8dd27d953694b8", kill_on_drop: false }`
[INFO] [stdout] a7a4c42775e7ae622bf1d9d0927be9d21ab128c65abe92688a8dd27d953694b8
