[INFO] cloning repository https://github.com/silppuri/rstrie
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/silppuri/rstrie" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilppuri%2Frstrie", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilppuri%2Frstrie'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6469b5e57b8ad2ee8d2d4998f04351d4f43967e7
[INFO] checking silppuri/rstrie against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilppuri%2Frstrie" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/silppuri/rstrie 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 git repo https://github.com/silppuri/rstrie
[INFO] finished tweaking git repo https://github.com/silppuri/rstrie
[INFO] tweaked toml for git repo https://github.com/silppuri/rstrie written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/silppuri/rstrie already has a lockfile, it will not be regenerated
[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 cslice v0.3.0
[INFO] [stderr]   Downloaded cstr-macro v0.1.0
[INFO] [stderr]   Downloaded sequence_trie v0.3.5
[INFO] [stderr]   Downloaded helix v0.7.2
[INFO] [stderr]   Downloaded libcruby-sys v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] bd51f5b07bdf23c5ba44a12c575a43608cc85b7a0920748b15d3d3534efe5608
[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" "bd51f5b07bdf23c5ba44a12c575a43608cc85b7a0920748b15d3d3534efe5608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd51f5b07bdf23c5ba44a12c575a43608cc85b7a0920748b15d3d3534efe5608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd51f5b07bdf23c5ba44a12c575a43608cc85b7a0920748b15d3d3534efe5608", kill_on_drop: false }`
[INFO] [stdout] bd51f5b07bdf23c5ba44a12c575a43608cc85b7a0920748b15d3d3534efe5608
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] efe7525f003ccc527b2a74b75b68b31a3237ae2a0cae18a17d68bef2eafbcd5f
[INFO] running `Command { std: "docker" "start" "-a" "efe7525f003ccc527b2a74b75b68b31a3237ae2a0cae18a17d68bef2eafbcd5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libcruby-sys v0.7.2
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking sequence_trie v0.3.5
[INFO] [stderr]     Checking helix v0.7.2
[INFO] [stderr]     Checking rstrie v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / ruby! {
[INFO] [stdout] 26 | |     pub class Rstrie {
[INFO] [stdout] 27 | |         struct {
[INFO] [stdout] 28 | |             trie: SequenceTrie<u8,VALUE>
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |     }
[INFO] [stdout] 56 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.47s
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "efe7525f003ccc527b2a74b75b68b31a3237ae2a0cae18a17d68bef2eafbcd5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efe7525f003ccc527b2a74b75b68b31a3237ae2a0cae18a17d68bef2eafbcd5f", kill_on_drop: false }`
[INFO] [stdout] efe7525f003ccc527b2a74b75b68b31a3237ae2a0cae18a17d68bef2eafbcd5f