[INFO] cloning repository https://github.com/malbarbo/mstcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/malbarbo/mstcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalbarbo%2Fmstcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalbarbo%2Fmstcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b48336773edbf87006d19a226845ad21156b86fe
[INFO] checking malbarbo/mstcc against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalbarbo%2Fmstcc" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/malbarbo/mstcc on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/malbarbo/mstcc
[INFO] finished tweaking git repo https://github.com/malbarbo/mstcc
[INFO] tweaked toml for git repo https://github.com/malbarbo/mstcc written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/malbarbo/mstcc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33f8a64a1e156f40cf7f272494b89ccdfff153c0ca0a24fa9288171e503173d8
[INFO] running `Command { std: "docker" "start" "-a" "33f8a64a1e156f40cf7f272494b89ccdfff153c0ca0a24fa9288171e503173d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33f8a64a1e156f40cf7f272494b89ccdfff153c0ca0a24fa9288171e503173d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33f8a64a1e156f40cf7f272494b89ccdfff153c0ca0a24fa9288171e503173d8", kill_on_drop: false }`
[INFO] [stdout] 33f8a64a1e156f40cf7f272494b89ccdfff153c0ca0a24fa9288171e503173d8
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e53cd59875a92eac1be3caf65f059290bacb315914bb880aa071f77f824a811d
[INFO] running `Command { std: "docker" "start" "-a" "e53cd59875a92eac1be3caf65f059290bacb315914bb880aa071f77f824a811d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking fera-fun v0.1.0
[INFO] [stderr]     Checking fera-unionfind v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking env_logger v0.5.9
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking fera-optional v0.1.1
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking fera-ext v0.1.0
[INFO] [stderr]     Checking fera-graph v0.1.1
[INFO] [stderr]     Checking fera v0.1.0
[INFO] [stderr]     Checking mstcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/input.rs:13:68
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn read_sammer_urrutia(file: &str) -> Result<MstCcProblem, Box<Error>> {
[INFO] [stdout]    |                                                                    ^^^^^ help: use `dyn`: `dyn 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/input.rs:13:68
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn read_sammer_urrutia(file: &str) -> Result<MstCcProblem, Box<Error>> {
[INFO] [stdout]    |                                                                    ^^^^^ help: use `dyn`: `dyn 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.65s
[INFO] running `Command { std: "docker" "inspect" "e53cd59875a92eac1be3caf65f059290bacb315914bb880aa071f77f824a811d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e53cd59875a92eac1be3caf65f059290bacb315914bb880aa071f77f824a811d", kill_on_drop: false }`
[INFO] [stdout] e53cd59875a92eac1be3caf65f059290bacb315914bb880aa071f77f824a811d