[INFO] fetching crate dec64 0.1.0... [INFO] testing dec64-0.1.0 against 1.60.0 for beta-1.61-1 [INFO] extracting crate dec64 0.1.0 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate dec64 0.1.0 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate dec64 0.1.0 [INFO] finished tweaking crates.io crate dec64 0.1.0 [INFO] tweaked toml for crates.io crate dec64 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] eb31162efa9ae551f23659690b5a365af1cf49c79226f220367af8fbd7347f0e [INFO] running `Command { std: "docker" "start" "-a" "eb31162efa9ae551f23659690b5a365af1cf49c79226f220367af8fbd7347f0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eb31162efa9ae551f23659690b5a365af1cf49c79226f220367af8fbd7347f0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb31162efa9ae551f23659690b5a365af1cf49c79226f220367af8fbd7347f0e", kill_on_drop: false }` [INFO] [stdout] eb31162efa9ae551f23659690b5a365af1cf49c79226f220367af8fbd7347f0e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] f7a8e7e9a134ebbf5cda91b04052977f417571fbcbcbf6d765f8753d4b28f3a8 [INFO] running `Command { std: "docker" "start" "-a" "f7a8e7e9a134ebbf5cda91b04052977f417571fbcbcbf6d765f8753d4b28f3a8", kill_on_drop: false }` [INFO] [stderr] Compiling dec64 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | try!(wr.write_all(b"-")); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:81:21 [INFO] [stdout] | [INFO] [stdout] 81 | try!(wr.write_all( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:84:21 [INFO] [stdout] | [INFO] [stdout] 84 | try!(wr.write_all(b"e-")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:90:25 [INFO] [stdout] | [INFO] [stdout] 90 | try!(wr.write_all(b"1")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | try!(wr.write_all( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:118:17 [INFO] [stdout] | [INFO] [stdout] 118 | try!(wr.write_all(b"e")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:124:21 [INFO] [stdout] | [INFO] [stdout] 124 | try!(wr.write_all(b"1")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/write.rs:32:47 [INFO] [stdout] | [INFO] [stdout] 32 | let mut buf: [u8; 30] = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.41s [INFO] running `Command { std: "docker" "inspect" "f7a8e7e9a134ebbf5cda91b04052977f417571fbcbcbf6d765f8753d4b28f3a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f7a8e7e9a134ebbf5cda91b04052977f417571fbcbcbf6d765f8753d4b28f3a8", kill_on_drop: false }` [INFO] [stdout] f7a8e7e9a134ebbf5cda91b04052977f417571fbcbcbf6d765f8753d4b28f3a8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--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] efdeffcc1e9898010a9739bc3f2124ba27cfa07b25d3cde711f6ff665e3da2ad [INFO] running `Command { std: "docker" "start" "-a" "efdeffcc1e9898010a9739bc3f2124ba27cfa07b25d3cde711f6ff665e3da2ad", kill_on_drop: false }` [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | try!(wr.write_all(b"-")); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling dec64 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:81:21 [INFO] [stdout] | [INFO] [stdout] 81 | try!(wr.write_all( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:84:21 [INFO] [stdout] | [INFO] [stdout] 84 | try!(wr.write_all(b"e-")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:90:25 [INFO] [stdout] | [INFO] [stdout] 90 | try!(wr.write_all(b"1")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | try!(wr.write_all( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:118:17 [INFO] [stdout] | [INFO] [stdout] 118 | try!(wr.write_all(b"e")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:124:21 [INFO] [stdout] | [INFO] [stdout] 124 | try!(wr.write_all(b"1")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/write.rs:32:47 [INFO] [stdout] | [INFO] [stdout] 32 | let mut buf: [u8; 30] = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | try!(wr.write_all(b"-")); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:81:21 [INFO] [stdout] | [INFO] [stdout] 81 | try!(wr.write_all( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:84:21 [INFO] [stdout] | [INFO] [stdout] 84 | try!(wr.write_all(b"e-")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:90:25 [INFO] [stdout] | [INFO] [stdout] 90 | try!(wr.write_all(b"1")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | try!(wr.write_all( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:118:17 [INFO] [stdout] | [INFO] [stdout] 118 | try!(wr.write_all(b"e")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/write.rs:124:21 [INFO] [stdout] | [INFO] [stdout] 124 | try!(wr.write_all(b"1")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/write.rs:32:47 [INFO] [stdout] | [INFO] [stdout] 32 | let mut buf: [u8; 30] = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.17s [INFO] running `Command { std: "docker" "inspect" "efdeffcc1e9898010a9739bc3f2124ba27cfa07b25d3cde711f6ff665e3da2ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "efdeffcc1e9898010a9739bc3f2124ba27cfa07b25d3cde711f6ff665e3da2ad", kill_on_drop: false }` [INFO] [stdout] efdeffcc1e9898010a9739bc3f2124ba27cfa07b25d3cde711f6ff665e3da2ad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", 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] d73d3a526e0337563371957bc75ff2291a0e96ad6e44d8a43df44752e9d16ec7 [INFO] running `Command { std: "docker" "start" "-a" "d73d3a526e0337563371957bc75ff2291a0e96ad6e44d8a43df44752e9d16ec7", kill_on_drop: false }` [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/write.rs:28:13 [INFO] [stderr] | [INFO] [stderr] 28 | try!(wr.write_all(b"-")); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/write.rs:81:21 [INFO] [stderr] | [INFO] [stderr] 81 | try!(wr.write_all( [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/write.rs:84:21 [INFO] [stderr] | [INFO] [stderr] 84 | try!(wr.write_all(b"e-")); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/write.rs:90:25 [INFO] [stderr] | [INFO] [stderr] 90 | try!(wr.write_all(b"1")); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/write.rs:115:17 [INFO] [stderr] | [INFO] [stderr] 115 | try!(wr.write_all( [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/write.rs:118:17 [INFO] [stderr] | [INFO] [stderr] 118 | try!(wr.write_all(b"e")); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/write.rs:124:21 [INFO] [stderr] | [INFO] [stderr] 124 | try!(wr.write_all(b"1")); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stderr] --> src/write.rs:32:47 [INFO] [stderr] | [INFO] [stderr] 32 | let mut buf: [u8; 30] = unsafe { mem::uninitialized() }; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `dec64` (lib) generated 8 warnings [INFO] [stderr] warning: `dec64` (lib test) generated 8 warnings (8 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/dec64-6caf93b57090aeb2) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-18e1fdea11fb3960) [INFO] [stdout] [INFO] [stdout] running 30 tests [INFO] [stdout] test compose_f64_pi ... ok [INFO] [stdout] test compose_nan ... ok [INFO] [stdout] test compose_zero ... ok [INFO] [stdout] test roundtrip_big_f64 ... ok [INFO] [stdout] test roundtrip_i32 ... ok [INFO] [stdout] test roundtrip_isize ... ok [INFO] [stdout] test roundtrip_u16 ... ok [INFO] [stdout] test roundtrip_u32 ... ok [INFO] [stdout] test roundtrip_i8 ... ok [INFO] [stdout] test roundtrip_huge_f64 ... ok [INFO] [stdout] test roundrtrip_f32 ... ok [INFO] [stdout] test roundtrip_tiny_f64 ... ok [INFO] [stdout] test roundtrip_tiny_neg_f64 ... ok [INFO] [stdout] test roundtrip_u8 ... ok [INFO] [stdout] test roundtrip_i64 ... ok [INFO] [stdout] test roundtrip_huge_neg_f64 ... ok [INFO] [stdout] test roundtrip_u64 ... ok [INFO] [stdout] test roundrtrip_f64 ... ok [INFO] [stdout] test compose_min ... ok [INFO] [stdout] test compose_max ... ok [INFO] [stdout] test write_huge ... ok [INFO] [stdout] test write_pi ... ok [INFO] [stdout] test roundtrip_usize ... ok [INFO] [stdout] test write_pi_from_float ... ok [INFO] [stdout] test compose_f32_pi ... ok [INFO] [stdout] test write_small ... ok [INFO] [stdout] test write_tiny ... ok [INFO] [stdout] test write_42 ... ok [INFO] [stdout] test roundtrip_i16 ... ok [INFO] [stdout] test write_midperiod ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests dec64 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d73d3a526e0337563371957bc75ff2291a0e96ad6e44d8a43df44752e9d16ec7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d73d3a526e0337563371957bc75ff2291a0e96ad6e44d8a43df44752e9d16ec7", kill_on_drop: false }` [INFO] [stdout] d73d3a526e0337563371957bc75ff2291a0e96ad6e44d8a43df44752e9d16ec7