[INFO] cloning repository https://github.com/ubnt-intrepid/rust-ast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ubnt-intrepid/rust-ast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Frust-ast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Frust-ast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 666be7a3f847cbd5e0577111ee0e6790786f6d5a
[INFO] checking ubnt-intrepid/rust-ast against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Frust-ast" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ubnt-intrepid/rust-ast on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ubnt-intrepid/rust-ast
[INFO] finished tweaking git repo https://github.com/ubnt-intrepid/rust-ast
[INFO] tweaked toml for git repo https://github.com/ubnt-intrepid/rust-ast written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ubnt-intrepid/rust-ast already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d202be21fbf31613b0ded37c3dd8708ea0f888e282eae88de3b35e95342f81ed
[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" "d202be21fbf31613b0ded37c3dd8708ea0f888e282eae88de3b35e95342f81ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d202be21fbf31613b0ded37c3dd8708ea0f888e282eae88de3b35e95342f81ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d202be21fbf31613b0ded37c3dd8708ea0f888e282eae88de3b35e95342f81ed", kill_on_drop: false }`
[INFO] [stdout] d202be21fbf31613b0ded37c3dd8708ea0f888e282eae88de3b35e95342f81ed
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35ee5b9dfe774c0003c2f411ea79b41c57e5ba4683fc012ec68dd249820a6ee8
[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" "35ee5b9dfe774c0003c2f411ea79b41c57e5ba4683fc012ec68dd249820a6ee8", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-ast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:33:27
[INFO] [stdout]    |
[INFO] [stdout] 33 |             let i = match try!(eval(*e1, env)) {
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:37:27
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let j = match try!(eval(*e2, env)) {
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:45:27
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let i = match try!(eval(*e1, env)) {
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:49:27
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let j = match try!(eval(*e2, env)) {
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:63:42
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let (x, e, mut env_) = match try!(eval(*e1, env)) {
[INFO] [stdout]    |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:67:21
[INFO] [stdout]    |
[INFO] [stdout] 67 |             let v = try!(eval(*e2, env));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:33:27
[INFO] [stdout]    |
[INFO] [stdout] 33 |             let i = match try!(eval(*e1, env)) {
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:37:27
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let j = match try!(eval(*e2, env)) {
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:45:27
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let i = match try!(eval(*e1, env)) {
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:49:27
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let j = match try!(eval(*e2, env)) {
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:63:42
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let (x, e, mut env_) = match try!(eval(*e1, env)) {
[INFO] [stdout]    |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/ast_closure.rs:67:21
[INFO] [stdout]    |
[INFO] [stdout] 67 |             let v = try!(eval(*e2, env));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "35ee5b9dfe774c0003c2f411ea79b41c57e5ba4683fc012ec68dd249820a6ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ee5b9dfe774c0003c2f411ea79b41c57e5ba4683fc012ec68dd249820a6ee8", kill_on_drop: false }`
[INFO] [stdout] 35ee5b9dfe774c0003c2f411ea79b41c57e5ba4683fc012ec68dd249820a6ee8