[INFO] fetching crate stcat 0.2.3...
[INFO] testing stcat-0.2.3 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate stcat 0.2.3 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate stcat 0.2.3 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stcat 0.2.3
[INFO] finished tweaking crates.io crate stcat 0.2.3
[INFO] tweaked toml for crates.io crate stcat 0.2.3 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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" "+62efba8a050c64249dab942951bb28f710208bc8" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7fcd269343cfcde14e407311f711cc9cc7e973c90b0786e1469fba932a4f9b6
[INFO] running `Command { std: "docker" "start" "-a" "b7fcd269343cfcde14e407311f711cc9cc7e973c90b0786e1469fba932a4f9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7fcd269343cfcde14e407311f711cc9cc7e973c90b0786e1469fba932a4f9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7fcd269343cfcde14e407311f711cc9cc7e973c90b0786e1469fba932a4f9b6", kill_on_drop: false }`
[INFO] [stdout] b7fcd269343cfcde14e407311f711cc9cc7e973c90b0786e1469fba932a4f9b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 461e67ace9fd9fff3ec5f5dc68fe3dfd3e3ead25f5d76cbfc0f82c2c40167ccc
[INFO] running `Command { std: "docker" "start" "-a" "461e67ace9fd9fff3ec5f5dc68fe3dfd3e3ead25f5d76cbfc0f82c2c40167ccc", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling slog-async v2.7.0
[INFO] [stderr]    Compiling arc-swap v1.5.0
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling zero v0.1.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling trackable_derive v1.0.0
[INFO] [stderr]    Compiling xmas-elf v0.6.2
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling libflate v0.1.27
[INFO] [stderr]    Compiling slog-scope v4.4.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling slog-stdlog v3.0.5
[INFO] [stderr]    Compiling trackable v1.2.0
[INFO] [stderr]    Compiling trackable v0.2.24
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling slog-term v2.8.0
[INFO] [stderr]    Compiling slog-kvfilter v0.6.1
[INFO] [stderr]    Compiling sloggers v0.2.9
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling stcat v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:87:31
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let (input, format): (Box<Read>, _) = if let Some(logfile) = matches.value_of("LOGFILE") {
[INFO] [stdout]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[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] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn no_timestamp(_: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                         ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[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] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stcat` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "461e67ace9fd9fff3ec5f5dc68fe3dfd3e3ead25f5d76cbfc0f82c2c40167ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "461e67ace9fd9fff3ec5f5dc68fe3dfd3e3ead25f5d76cbfc0f82c2c40167ccc", kill_on_drop: false }`
[INFO] [stdout] 461e67ace9fd9fff3ec5f5dc68fe3dfd3e3ead25f5d76cbfc0f82c2c40167ccc