[INFO] fetching crate byte_string 1.0.0...
[INFO] testing byte_string-1.0.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate byte_string 1.0.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate byte_string 1.0.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate byte_string 1.0.0
[INFO] finished tweaking crates.io crate byte_string 1.0.0
[INFO] tweaked toml for crates.io crate byte_string 1.0.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df082c81fd9eb4caabb464eff4da1da2e63875e5c80744852f27a92f823bb092
[INFO] running `Command { std: "docker" "start" "-a" "df082c81fd9eb4caabb464eff4da1da2e63875e5c80744852f27a92f823bb092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df082c81fd9eb4caabb464eff4da1da2e63875e5c80744852f27a92f823bb092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df082c81fd9eb4caabb464eff4da1da2e63875e5c80744852f27a92f823bb092", kill_on_drop: false }`
[INFO] [stdout] df082c81fd9eb4caabb464eff4da1da2e63875e5c80744852f27a92f823bb092
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cefc2bbcf83156d9c237233aa88edc97f488abb1a02bfc61e2f8578ab7c4f840
[INFO] running `Command { std: "docker" "start" "-a" "cefc2bbcf83156d9c237233aa88edc97f488abb1a02bfc61e2f8578ab7c4f840", kill_on_drop: false }`
[INFO] [stderr]    Compiling byte_string v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         try!(write!(f, "b\""));
[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:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 try!(write!(f, "{}", ch as char));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "cefc2bbcf83156d9c237233aa88edc97f488abb1a02bfc61e2f8578ab7c4f840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cefc2bbcf83156d9c237233aa88edc97f488abb1a02bfc61e2f8578ab7c4f840", kill_on_drop: false }`
[INFO] [stdout] cefc2bbcf83156d9c237233aa88edc97f488abb1a02bfc61e2f8578ab7c4f840
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb5fe9c6ccbe862f91ece5abf351f8869b0ff1e214d67925b6d6c386d3cdcea2
[INFO] running `Command { std: "docker" "start" "-a" "cb5fe9c6ccbe862f91ece5abf351f8869b0ff1e214d67925b6d6c386d3cdcea2", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         try!(write!(f, "b\""));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling byte_string v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 try!(write!(f, "{}", ch as char));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         try!(write!(f, "b\""));
[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:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 try!(write!(f, "{}", ch as char));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "cb5fe9c6ccbe862f91ece5abf351f8869b0ff1e214d67925b6d6c386d3cdcea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb5fe9c6ccbe862f91ece5abf351f8869b0ff1e214d67925b6d6c386d3cdcea2", kill_on_drop: false }`
[INFO] [stdout] cb5fe9c6ccbe862f91ece5abf351f8869b0ff1e214d67925b6d6c386d3cdcea2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74fb27f851560fac44455ef42fb124c10c898f0ee482c98afd4daafa749cc92e
[INFO] running `Command { std: "docker" "start" "-a" "74fb27f851560fac44455ef42fb124c10c898f0ee482c98afd4daafa749cc92e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:168:9
[INFO] [stderr]     |
[INFO] [stderr] 168 |         try!(write!(f, "b\""));
[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:172:17
[INFO] [stderr]     |
[INFO] [stderr] 172 |                 try!(write!(f, "{}", ch as char));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `byte_string` (lib) generated 2 warnings
[INFO] [stderr] warning: `byte_string` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/byte_string-f78d0a65de2cbf57)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::debug_bytestr ... ok
[INFO] [stdout] test tests::debug_bytestr_empty ... ok
[INFO] [stdout] test tests::debug_bytestring ... ok
[INFO] [stdout] test tests::debug_bytestring_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests byte_string
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "74fb27f851560fac44455ef42fb124c10c898f0ee482c98afd4daafa749cc92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74fb27f851560fac44455ef42fb124c10c898f0ee482c98afd4daafa749cc92e", kill_on_drop: false }`
[INFO] [stdout] 74fb27f851560fac44455ef42fb124c10c898f0ee482c98afd4daafa749cc92e