[INFO] fetching crate pretty_dtoa 0.1.0...
[INFO] checking pretty_dtoa-0.1.0 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate pretty_dtoa 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate pretty_dtoa 0.1.0 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pretty_dtoa 0.1.0
[INFO] finished tweaking crates.io crate pretty_dtoa 0.1.0
[INFO] tweaked toml for crates.io crate pretty_dtoa 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu_floating_decimal v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dee2db134cc547b803819191f9dfab1f5bb8252042266c88e9a37103181c4fe
[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" "9dee2db134cc547b803819191f9dfab1f5bb8252042266c88e9a37103181c4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dee2db134cc547b803819191f9dfab1f5bb8252042266c88e9a37103181c4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dee2db134cc547b803819191f9dfab1f5bb8252042266c88e9a37103181c4fe", kill_on_drop: false }`
[INFO] [stdout] 9dee2db134cc547b803819191f9dfab1f5bb8252042266c88e9a37103181c4fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] 541cd5bf19ac7fa4a672558096087897289afd1ee0da7cc4ec2ea2d756cc05ac
[INFO] running `Command { std: "docker" "start" "-a" "541cd5bf19ac7fa4a672558096087897289afd1ee0da7cc4ec2ea2d756cc05ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling ryu_floating_decimal v0.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking pretty_dtoa v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] warning: attribute should be applied to a function or static
[INFO] [stdout]    --> src/lib.rs:28:13
[INFO] [stdout]     |
[INFO] [stdout] 28  |             #[no_mangle]
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] 29  |             static $ident: $crate::__rt::AtomicUsize;
[INFO] [stdout]     |             ----------------------------------------- not a function or static
[INFO] [stdout] ...
[INFO] [stdout] 405 |             hit!(e_width_case_a);
[INFO] [stdout]     |             --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[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: attribute should be applied to a function or static
[INFO] [stdout]    --> src/lib.rs:28:13
[INFO] [stdout]     |
[INFO] [stdout] 28  |             #[no_mangle]
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] 29  |             static $ident: $crate::__rt::AtomicUsize;
[INFO] [stdout]     |             ----------------------------------------- not a function or static
[INFO] [stdout] ...
[INFO] [stdout] 408 |             hit!(e_width_case_b);
[INFO] [stdout]     |             --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[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: attribute should be applied to a function or static
[INFO] [stdout]    --> src/lib.rs:28:13
[INFO] [stdout]     |
[INFO] [stdout] 28  |             #[no_mangle]
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] 29  |             static $ident: $crate::__rt::AtomicUsize;
[INFO] [stdout]     |             ----------------------------------------- not a function or static
[INFO] [stdout] ...
[INFO] [stdout] 411 |             hit!(e_width_case_c);
[INFO] [stdout]     |             --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[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: attribute should be applied to a function or static
[INFO] [stdout]    --> src/lib.rs:28:13
[INFO] [stdout]     |
[INFO] [stdout] 28  |             #[no_mangle]
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] 29  |             static $ident: $crate::__rt::AtomicUsize;
[INFO] [stdout]     |             ----------------------------------------- not a function or static
[INFO] [stdout] ...
[INFO] [stdout] 649 |                     hit!(test_widths_internal);
[INFO] [stdout]     |                     --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[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 19.17s
[INFO] running `Command { std: "docker" "inspect" "541cd5bf19ac7fa4a672558096087897289afd1ee0da7cc4ec2ea2d756cc05ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541cd5bf19ac7fa4a672558096087897289afd1ee0da7cc4ec2ea2d756cc05ac", kill_on_drop: false }`
[INFO] [stdout] 541cd5bf19ac7fa4a672558096087897289afd1ee0da7cc4ec2ea2d756cc05ac