[INFO] fetching crate clanker 0.7.0...
[INFO] testing clanker-0.7.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate clanker 0.7.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate clanker 0.7.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate clanker 0.7.0
[INFO] finished tweaking crates.io crate clanker 0.7.0
[INFO] tweaked toml for crates.io crate clanker 0.7.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate clanker 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libgit2-sys v0.12.3+1.0.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] e976333a5894b87b5e5e124aa385c6da4fd7b4a6f8423115b5bb6f7be24450ab
[INFO] running `Command { std: "docker" "start" "-a" "e976333a5894b87b5e5e124aa385c6da4fd7b4a6f8423115b5bb6f7be24450ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e976333a5894b87b5e5e124aa385c6da4fd7b4a6f8423115b5bb6f7be24450ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e976333a5894b87b5e5e124aa385c6da4fd7b4a6f8423115b5bb6f7be24450ab", kill_on_drop: false }`
[INFO] [stdout] e976333a5894b87b5e5e124aa385c6da4fd7b4a6f8423115b5bb6f7be24450ab
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f825a6c2c4d239d9b1c929a739f3bbf9b4e9f0d802332cd7a355366deeb1c111
[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" "f825a6c2c4d239d9b1c929a739f3bbf9b4e9f0d802332cd7a355366deeb1c111", kill_on_drop: false }`
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.12.3+1.0.0
[INFO] [stderr]    Compiling clanker v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.11s
[INFO] running `Command { std: "docker" "inspect" "f825a6c2c4d239d9b1c929a739f3bbf9b4e9f0d802332cd7a355366deeb1c111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f825a6c2c4d239d9b1c929a739f3bbf9b4e9f0d802332cd7a355366deeb1c111", kill_on_drop: false }`
[INFO] [stdout] f825a6c2c4d239d9b1c929a739f3bbf9b4e9f0d802332cd7a355366deeb1c111
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] 66dd91e90a271ff4c29faf473e78eef4838fb7aa9dfae574337005ec7b7d5c93
[INFO] running `Command { std: "docker" "start" "-a" "66dd91e90a271ff4c29faf473e78eef4838fb7aa9dfae574337005ec7b7d5c93", kill_on_drop: false }`
[INFO] [stderr]    Compiling clanker v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> src/compress/gct.rs:83:60
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let trie: GraphemeClusterTrie = ["aa", "ab", "ac"].into_iter().map(|&s| s).collect();
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let trie: GraphemeClusterTrie = ["aa", "ab", "ac"].iter().map(|&s| s).collect();
[INFO] [stdout]    |                                                            ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let trie: GraphemeClusterTrie = IntoIterator::into_iter(["aa", "ab", "ac"]).map(|&s| s).collect();
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^                  ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]    --> src/compress/gct.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 |         .into_iter()
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 113 |         .iter()
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 93  |         let trie: GraphemeClusterTrie = IntoIterator::into_iter([
[INFO] [stdout] 94  |             "a1",
[INFO] [stdout] 95  |             "c",
[INFO] [stdout] 96  |             // "c++",
[INFO] [stdout] 97  |             "Desktop",
[INFO] [stdout] 98  |             "Documents",
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "66dd91e90a271ff4c29faf473e78eef4838fb7aa9dfae574337005ec7b7d5c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66dd91e90a271ff4c29faf473e78eef4838fb7aa9dfae574337005ec7b7d5c93", kill_on_drop: false }`
[INFO] [stdout] 66dd91e90a271ff4c29faf473e78eef4838fb7aa9dfae574337005ec7b7d5c93
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9a1e9874d27b8d7b87125f1f049405b6221d599a85637ccc5b32f78f1c272b3
[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" "e9a1e9874d27b8d7b87125f1f049405b6221d599a85637ccc5b32f78f1c272b3", kill_on_drop: false }`
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stderr]   --> src/compress/gct.rs:83:60
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let trie: GraphemeClusterTrie = ["aa", "ab", "ac"].into_iter().map(|&s| s).collect();
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this changes meaning in Rust 2021
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let trie: GraphemeClusterTrie = ["aa", "ab", "ac"].iter().map(|&s| s).collect();
[INFO] [stderr]    |                                                            ^^^^
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let trie: GraphemeClusterTrie = IntoIterator::into_iter(["aa", "ab", "ac"]).map(|&s| s).collect();
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^                  ^
[INFO] [stderr] 
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stderr]    --> src/compress/gct.rs:113:10
[INFO] [stderr]     |
[INFO] [stderr] 113 |         .into_iter()
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this changes meaning in Rust 2021
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]     |
[INFO] [stderr] 113 |         .iter()
[INFO] [stderr]     |          ^^^^
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]     |
[INFO] [stderr] 93  |         let trie: GraphemeClusterTrie = IntoIterator::into_iter([
[INFO] [stderr] 94  |             "a1",
[INFO] [stderr] 95  |             "c",
[INFO] [stderr] 96  |             // "c++",
[INFO] [stderr] 97  |             "Desktop",
[INFO] [stderr] 98  |             "Documents",
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: `clanker` (bin "clanker" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/clanker-c97be35120701480)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test compress::gct::tests::basic ... ok
[INFO] [stdout] test compress::gct::tests::realworld ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e9a1e9874d27b8d7b87125f1f049405b6221d599a85637ccc5b32f78f1c272b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9a1e9874d27b8d7b87125f1f049405b6221d599a85637ccc5b32f78f1c272b3", kill_on_drop: false }`
[INFO] [stdout] e9a1e9874d27b8d7b87125f1f049405b6221d599a85637ccc5b32f78f1c272b3
