[INFO] fetching crate tlv 0.2.0...
[INFO] testing tlv-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tlv 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tlv 0.2.0
[INFO] finished tweaking crates.io crate tlv 0.2.0
[INFO] tweaked toml for crates.io crate tlv 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tlv 0.2.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding byteorder v0.5.3 (available: v1.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 294c1151ab2ba97094087520cf5e5680a5c20c281975fa06be09df1d80f98015
[INFO] running `Command { std: "docker" "start" "-a" "294c1151ab2ba97094087520cf5e5680a5c20c281975fa06be09df1d80f98015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "294c1151ab2ba97094087520cf5e5680a5c20c281975fa06be09df1d80f98015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "294c1151ab2ba97094087520cf5e5680a5c20c281975fa06be09df1d80f98015", kill_on_drop: false }`
[INFO] [stdout] 294c1151ab2ba97094087520cf5e5680a5c20c281975fa06be09df1d80f98015
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e36d58d77935410b8eeaf749945a4c5a0a21638d689047ddd731874207d525fc
[INFO] running `Command { std: "docker" "start" "-a" "e36d58d77935410b8eeaf749945a4c5a0a21638d689047ddd731874207d525fc", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling tlv v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let length = try!(buf.read_u16::<BigEndian>());
[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/lib.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |             try!(value_rdr.read_to_end(value_vec));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:35:36
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn decode<T: std::io::BufRead>(mut buf: &mut T) -> Result<HashMap<u16, String>, std::io::Error> {
[INFO] [stdout]    |                                    ----^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let mut value_vec = &mut Vec::with_capacity(length as usize);
[INFO] [stdout]    |                 ----^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "e36d58d77935410b8eeaf749945a4c5a0a21638d689047ddd731874207d525fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e36d58d77935410b8eeaf749945a4c5a0a21638d689047ddd731874207d525fc", kill_on_drop: false }`
[INFO] [stdout] e36d58d77935410b8eeaf749945a4c5a0a21638d689047ddd731874207d525fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d68658c05e4b33fe884e637a7d509a7c5e9570b55c2a4bef344ccc7cfd89bf94
[INFO] running `Command { std: "docker" "start" "-a" "d68658c05e4b33fe884e637a7d509a7c5e9570b55c2a4bef344ccc7cfd89bf94", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let length = try!(buf.read_u16::<BigEndian>());
[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/lib.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |             try!(value_rdr.read_to_end(value_vec));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:35:36
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn decode<T: std::io::BufRead>(mut buf: &mut T) -> Result<HashMap<u16, String>, std::io::Error> {
[INFO] [stdout]    |                                    ----^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let mut value_vec = &mut Vec::with_capacity(length as usize);
[INFO] [stdout]    |                 ----^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tlv v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let length = try!(buf.read_u16::<BigEndian>());
[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/lib.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |             try!(value_rdr.read_to_end(value_vec));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:35:36
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn decode<T: std::io::BufRead>(mut buf: &mut T) -> Result<HashMap<u16, String>, std::io::Error> {
[INFO] [stdout]    |                                    ----^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let mut value_vec = &mut Vec::with_capacity(length as usize);
[INFO] [stdout]    |                 ----^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "d68658c05e4b33fe884e637a7d509a7c5e9570b55c2a4bef344ccc7cfd89bf94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d68658c05e4b33fe884e637a7d509a7c5e9570b55c2a4bef344ccc7cfd89bf94", kill_on_drop: false }`
[INFO] [stdout] d68658c05e4b33fe884e637a7d509a7c5e9570b55c2a4bef344ccc7cfd89bf94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 22234da064bc69fd5be20d78dfa3c35e22c3bfe7071ab4617945ddda71e4d015
[INFO] running `Command { std: "docker" "start" "-a" "22234da064bc69fd5be20d78dfa3c35e22c3bfe7071ab4617945ddda71e4d015", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout] 
[INFO] [stderr]   --> src/lib.rs:38:22
[INFO] [stdout] running 3 tests
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let length = try!(buf.read_u16::<BigEndian>());
[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/lib.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             try!(value_rdr.read_to_end(value_vec));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:35:36
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn decode<T: std::io::BufRead>(mut buf: &mut T) -> Result<HashMap<u16, String>, std::io::Error> {
[INFO] [stderr]    |                                    ----^^^
[INFO] [stderr]    |                                    |
[INFO] [stderr]    |                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |             let mut value_vec = &mut Vec::with_capacity(length as usize);
[INFO] [stderr]    |                 ----^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `tlv` (lib) generated 4 warnings (run `cargo fix --lib -p tlv` to apply 2 suggestions)
[INFO] [stderr] warning: `tlv` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tlv-5e0157c0cbe8547e)
[INFO] [stdout] test tests::test_encode_decode_tlv ... ok
[INFO] [stderr]    Doc-tests tlv
[INFO] [stdout] test tests::test_decode_tlv ... ok
[INFO] [stdout] test tests::test_encode_tlv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "22234da064bc69fd5be20d78dfa3c35e22c3bfe7071ab4617945ddda71e4d015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22234da064bc69fd5be20d78dfa3c35e22c3bfe7071ab4617945ddda71e4d015", kill_on_drop: false }`
[INFO] [stdout] 22234da064bc69fd5be20d78dfa3c35e22c3bfe7071ab4617945ddda71e4d015
