[INFO] fetching crate strfmt 0.1.6...
[INFO] building strfmt-0.1.6 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate strfmt 0.1.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate strfmt 0.1.6 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate strfmt 0.1.6
[INFO] finished tweaking crates.io crate strfmt 0.1.6
[INFO] tweaked toml for crates.io crate strfmt 0.1.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b4fad41b03eccd730db8a705409d136694584c8ab108694444b101714e51e18
[INFO] running `Command { std: "docker" "start" "-a" "7b4fad41b03eccd730db8a705409d136694584c8ab108694444b101714e51e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b4fad41b03eccd730db8a705409d136694584c8ab108694444b101714e51e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b4fad41b03eccd730db8a705409d136694584c8ab108694444b101714e51e18", kill_on_drop: false }`
[INFO] [stdout] 7b4fad41b03eccd730db8a705409d136694584c8ab108694444b101714e51e18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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 -Zprofile-closures" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f58f015210aa17b55c87f082ec24742aabeed8d60695a87f6fea0d15eeb411c3
[INFO] running `Command { std: "docker" "start" "-a" "f58f015210aa17b55c87f082ec24742aabeed8d60695a87f6fea0d15eeb411c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling strfmt v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/types.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/formatter.rs:62:16
[INFO] [stdout]    |
[INFO] [stdout] 62 |             '0'...'9' => {}
[INFO] [stdout]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/formatter.rs:281:22
[INFO] [stdout]     |
[INFO] [stdout] 281 |         let format = try!(parse_like_python(rest));
[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/fmtstr.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 try!(f(fmt));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/fmtstr.rs:194:27
[INFO] [stdout]     |
[INFO] [stdout] 194 |                 let fmt = try!(Formatter::from_str(fmt_pattern, &mut out));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "f58f015210aa17b55c87f082ec24742aabeed8d60695a87f6fea0d15eeb411c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f58f015210aa17b55c87f082ec24742aabeed8d60695a87f6fea0d15eeb411c3", kill_on_drop: false }`
[INFO] [stdout] f58f015210aa17b55c87f082ec24742aabeed8d60695a87f6fea0d15eeb411c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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 -Zprofile-closures" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7e12084e7f90543fa0a4f1c43a3dc26d8e0c38b6b493924a00a1c6c5ce936d0
[INFO] running `Command { std: "docker" "start" "-a" "d7e12084e7f90543fa0a4f1c43a3dc26d8e0c38b6b493924a00a1c6c5ce936d0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "d7e12084e7f90543fa0a4f1c43a3dc26d8e0c38b6b493924a00a1c6c5ce936d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7e12084e7f90543fa0a4f1c43a3dc26d8e0c38b6b493924a00a1c6c5ce936d0", kill_on_drop: false }`
[INFO] [stdout] d7e12084e7f90543fa0a4f1c43a3dc26d8e0c38b6b493924a00a1c6c5ce936d0