[INFO] fetching crate ktrace 0.1.0...
[INFO] checking ktrace-0.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate ktrace 0.1.0 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate ktrace 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ktrace 0.1.0
[INFO] finished tweaking crates.io crate ktrace 0.1.0
[INFO] tweaked toml for crates.io crate ktrace 0.1.0 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 985de3f9f0ade987e4846334c4d552ac46855c6bf348c721e395cc8be4b2a5b5
[INFO] running `Command { std: "docker" "start" "-a" "985de3f9f0ade987e4846334c4d552ac46855c6bf348c721e395cc8be4b2a5b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "985de3f9f0ade987e4846334c4d552ac46855c6bf348c721e395cc8be4b2a5b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "985de3f9f0ade987e4846334c4d552ac46855c6bf348c721e395cc8be4b2a5b5", kill_on_drop: false }`
[INFO] [stdout] 985de3f9f0ade987e4846334c4d552ac46855c6bf348c721e395cc8be4b2a5b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ccd891c27cce3c076de42f1ff91ab291585f19cd6158c68f031b6167383a9b7
[INFO] running `Command { std: "docker" "start" "-a" "2ccd891c27cce3c076de42f1ff91ab291585f19cd6158c68f031b6167383a9b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking ktrace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/header.rs:57:26
[INFO] [stdout]    |
[INFO] [stdout] 57 |             record_type: try![RecordType::from_u16(raw.ktr_type)],
[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/header.rs:59:22
[INFO] [stdout]    |
[INFO] [stdout] 59 |             command: try![command].to_string(),
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/record.rs:243:30
[INFO] [stdout]     |
[INFO] [stdout] 243 |                     message: try! {
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/record.rs:255:27
[INFO] [stdout]     |
[INFO] [stdout] 255 |                 let nul = try! {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/record.rs:262:27
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     name: try! {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/record.rs:310:33
[INFO] [stdout]     |
[INFO] [stdout] 310 |                 let fail_type = try! {
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:29
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn parse<E>(mut r: &mut io::Read) -> Result<Vec<(Header,Result<Record>)>>
[INFO] [stdout]    |                             ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         try![r.read_exact(&mut data).map_err(Error::IO)];
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:46:22
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let header = try![Header::parse(&data)];
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/header.rs:57:26
[INFO] [stdout]    |
[INFO] [stdout] 57 |             record_type: try![RecordType::from_u16(raw.ktr_type)],
[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/header.rs:59:22
[INFO] [stdout]    |
[INFO] [stdout] 59 |             command: try![command].to_string(),
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/record.rs:243:30
[INFO] [stdout]     |
[INFO] [stdout] 243 |                     message: try! {
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/record.rs:255:27
[INFO] [stdout]     |
[INFO] [stdout] 255 |                 let nul = try! {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/record.rs:262:27
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     name: try! {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/record.rs:310:33
[INFO] [stdout]     |
[INFO] [stdout] 310 |                 let fail_type = try! {
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:29
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn parse<E>(mut r: &mut io::Read) -> Result<Vec<(Header,Result<Record>)>>
[INFO] [stdout]    |                             ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         try![r.read_exact(&mut data).map_err(Error::IO)];
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:46:22
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let header = try![Header::parse(&data)];
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn parse<E>(mut r: &mut io::Read) -> Result<Vec<(Header,Result<Record>)>>
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn parse<E>(mut r: &mut io::Read) -> Result<Vec<(Header,Result<Record>)>>
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.05s
[INFO] running `Command { std: "docker" "inspect" "2ccd891c27cce3c076de42f1ff91ab291585f19cd6158c68f031b6167383a9b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ccd891c27cce3c076de42f1ff91ab291585f19cd6158c68f031b6167383a9b7", kill_on_drop: false }`
[INFO] [stdout] 2ccd891c27cce3c076de42f1ff91ab291585f19cd6158c68f031b6167383a9b7
