[INFO] cloning repository https://github.com/jswrenn/midinet [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jswrenn/midinet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fmidinet", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fmidinet'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f29b1b826ab8070fc0116200fbe293792a0cb1c2 [INFO] checking jswrenn/midinet against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fmidinet" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jswrenn/midinet on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jswrenn/midinet [INFO] finished tweaking git repo https://github.com/jswrenn/midinet [INFO] tweaked toml for git repo https://github.com/jswrenn/midinet written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/jswrenn/midinet already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f8b7fc4e7e41bb2eaecae42604c7fbab6bfded372e8376911b3a24000323d2b4 [INFO] running `Command { std: "docker" "start" "-a" "f8b7fc4e7e41bb2eaecae42604c7fbab6bfded372e8376911b3a24000323d2b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f8b7fc4e7e41bb2eaecae42604c7fbab6bfded372e8376911b3a24000323d2b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f8b7fc4e7e41bb2eaecae42604c7fbab6bfded372e8376911b3a24000323d2b4", kill_on_drop: false }` [INFO] [stdout] f8b7fc4e7e41bb2eaecae42604c7fbab6bfded372e8376911b3a24000323d2b4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7242f1ca3d86d2e8d834e3a02c567344cc7be1fb5356e4c4b5dce6e995c59c6b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7242f1ca3d86d2e8d834e3a02c567344cc7be1fb5356e4c4b5dce6e995c59c6b", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.40 [INFO] [stderr] Compiling pkg-config v0.3.9 [INFO] [stderr] Checking unicode-width v0.1.4 [INFO] [stderr] Checking strsim v0.7.0 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking bitflags v1.0.1 [INFO] [stderr] Compiling proc-macro2 v0.3.6 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Compiling alsa-sys v0.1.1 [INFO] [stderr] Compiling quote v0.5.1 [INFO] [stderr] Checking atty v0.2.8 [INFO] [stderr] Checking nix v0.9.0 [INFO] [stderr] Checking clap v2.31.2 [INFO] [stderr] Compiling syn v0.13.1 [INFO] [stderr] Checking alsa v0.2.0 [INFO] [stderr] Compiling structopt-derive v0.2.7 [INFO] [stderr] Checking structopt v0.2.7 [INFO] [stderr] Checking midinet v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/bin/server.rs:20:37 [INFO] [stdout] | [INFO] [stdout] 20 | fn run(options : Options) -> Result> { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #35121 for more information [INFO] [stdout] = help: add `#![feature(never_type)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/bin/server.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] extern crate structopt; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/server.rs:20:44 [INFO] [stdout] | [INFO] [stdout] 20 | fn run(options : Options) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/bin/server.rs:20:37 [INFO] [stdout] | [INFO] [stdout] 20 | fn run(options : Options) -> Result> { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #35121 for more information [INFO] [stdout] = help: add `#![feature(never_type)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/bin/server.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] extern crate structopt; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/server.rs:20:44 [INFO] [stdout] | [INFO] [stdout] 20 | fn run(options : Options) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/bin/client.rs:38:38 [INFO] [stdout] | [INFO] [stdout] 38 | fn run(options : &Options) -> Result> { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #35121 for more information [INFO] [stdout] = help: add `#![feature(never_type)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/bin/client.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] extern crate structopt; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/client.rs:27:44 [INFO] [stdout] | [INFO] [stdout] 27 | -> Result<(Port, Vec), Box> [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/client.rs:38:45 [INFO] [stdout] | [INFO] [stdout] 38 | fn run(options : &Options) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/bin/client.rs:38:38 [INFO] [stdout] | [INFO] [stdout] 38 | fn run(options : &Options) -> Result> { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #35121 for more information [INFO] [stdout] = help: add `#![feature(never_type)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/bin/client.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] extern crate structopt; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/client.rs:27:44 [INFO] [stdout] | [INFO] [stdout] 27 | -> Result<(Port, Vec), Box> [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/client.rs:38:45 [INFO] [stdout] | [INFO] [stdout] 38 | fn run(options : &Options) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `midinet` [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "7242f1ca3d86d2e8d834e3a02c567344cc7be1fb5356e4c4b5dce6e995c59c6b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7242f1ca3d86d2e8d834e3a02c567344cc7be1fb5356e4c4b5dce6e995c59c6b", kill_on_drop: false }` [INFO] [stdout] 7242f1ca3d86d2e8d834e3a02c567344cc7be1fb5356e4c4b5dce6e995c59c6b