[INFO] fetching crate http2parse 0.2.2...
[INFO] testing http2parse-0.2.2 against 1.44.0 for beta-1.45-1
[INFO] extracting crate http2parse 0.2.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate http2parse 0.2.2 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate http2parse 0.2.2
[INFO] finished tweaking crates.io crate http2parse 0.2.2
[INFO] tweaked toml for crates.io crate http2parse 0.2.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0ce7d2c550a08186d6f7b8b6d5f88cbbe2fc98fb48c7b35f323ca9e99b3f191e
[INFO] running `"docker" "start" "-a" "0ce7d2c550a08186d6f7b8b6d5f88cbbe2fc98fb48c7b35f323ca9e99b3f191e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling bitflags v0.1.1
[INFO] [stderr]    Compiling http2parse v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/payload.rs:92:37
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 let (_, priority) = try!(Priority::parse(true, buf));
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:181:19
[INFO] [stderr]     |
[INFO] [stderr] 181 |             data: try!(trim_padding(settings, header, buf))
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:188:15
[INFO] [stderr]     |
[INFO] [stderr] 188 |         buf = try!(trim_padding(settings, header, buf));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:189:31
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let (buf, priority) = try!(Priority::parse(settings.priority, buf));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:258:15
[INFO] [stderr]     |
[INFO] [stderr] 258 |         buf = try!(trim_padding(settings, header, buf));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:16:22
[INFO] [stderr]    |
[INFO] [stderr] 16 |             payload: try!(Payload::parse(header, buf))
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:50:19
[INFO] [stderr]    |
[INFO] [stderr] 50 |             flag: try!(Flag::new(buf[4]).map_err(|()| { Error::BadFlag(buf[4]) })),
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "0ce7d2c550a08186d6f7b8b6d5f88cbbe2fc98fb48c7b35f323ca9e99b3f191e"`
[INFO] running `"docker" "rm" "-f" "0ce7d2c550a08186d6f7b8b6d5f88cbbe2fc98fb48c7b35f323ca9e99b3f191e"`
[INFO] [stdout] 0ce7d2c550a08186d6f7b8b6d5f88cbbe2fc98fb48c7b35f323ca9e99b3f191e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a59dbf73be6d08678c1a35f76faf27cc148e1284a85acfc17550a19e532d508d
[INFO] running `"docker" "start" "-a" "a59dbf73be6d08678c1a35f76faf27cc148e1284a85acfc17550a19e532d508d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling http2parse v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/payload.rs:92:37
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 let (_, priority) = try!(Priority::parse(true, buf));
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:181:19
[INFO] [stderr]     |
[INFO] [stderr] 181 |             data: try!(trim_padding(settings, header, buf))
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:188:15
[INFO] [stderr]     |
[INFO] [stderr] 188 |         buf = try!(trim_padding(settings, header, buf));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:189:31
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let (buf, priority) = try!(Priority::parse(settings.priority, buf));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:258:15
[INFO] [stderr]     |
[INFO] [stderr] 258 |         buf = try!(trim_padding(settings, header, buf));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:16:22
[INFO] [stderr]    |
[INFO] [stderr] 16 |             payload: try!(Payload::parse(header, buf))
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:50:19
[INFO] [stderr]    |
[INFO] [stderr] 50 |             flag: try!(Flag::new(buf[4]).map_err(|()| { Error::BadFlag(buf[4]) })),
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:19
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![cfg_attr(test, feature(test))]
[INFO] [stderr]   |                   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/payload.rs:92:37
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 let (_, priority) = try!(Priority::parse(true, buf));
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:1:24
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:181:19
[INFO] [stderr]     |
[INFO] [stderr] 181 |             data: try!(trim_padding(settings, header, buf))
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:188:15
[INFO] [stderr]     |
[INFO] [stderr] 188 |         buf = try!(trim_padding(settings, header, buf));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:189:31
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let (buf, priority) = try!(Priority::parse(settings.priority, buf));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/payload.rs:258:15
[INFO] [stderr]     |
[INFO] [stderr] 258 |         buf = try!(trim_padding(settings, header, buf));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:16:22
[INFO] [stderr]    |
[INFO] [stderr] 16 |             payload: try!(Payload::parse(header, buf))
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:50:19
[INFO] [stderr]    |
[INFO] [stderr] 50 |             flag: try!(Flag::new(buf[4]).map_err(|()| { Error::BadFlag(buf[4]) })),
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `http2parse`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a59dbf73be6d08678c1a35f76faf27cc148e1284a85acfc17550a19e532d508d"`
[INFO] running `"docker" "rm" "-f" "a59dbf73be6d08678c1a35f76faf27cc148e1284a85acfc17550a19e532d508d"`
[INFO] [stdout] a59dbf73be6d08678c1a35f76faf27cc148e1284a85acfc17550a19e532d508d