[INFO] cloning repository https://github.com/semtexzv/podcomp [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/semtexzv/podcomp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemtexzv%2Fpodcomp", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemtexzv%2Fpodcomp'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b95624788458c8ed937a16c0d33ee71ae544ff17 [INFO] checking semtexzv/podcomp against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemtexzv%2Fpodcomp" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/semtexzv/podcomp on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/semtexzv/podcomp [INFO] finished tweaking git repo https://github.com/semtexzv/podcomp [INFO] tweaked toml for git repo https://github.com/semtexzv/podcomp written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/semtexzv/podcomp already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unicode-width v0.1.6 [INFO] [stderr] Downloaded structopt-derive v0.3.4 [INFO] [stderr] Downloaded proc-macro-error v0.2.6 [INFO] [stderr] Downloaded structopt v0.3.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4968db14b257d722f47f2a7bd3f2653cd29e72991b0c794ed6007e5405946f98 [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" "4968db14b257d722f47f2a7bd3f2653cd29e72991b0c794ed6007e5405946f98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4968db14b257d722f47f2a7bd3f2653cd29e72991b0c794ed6007e5405946f98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4968db14b257d722f47f2a7bd3f2653cd29e72991b0c794ed6007e5405946f98", kill_on_drop: false }` [INFO] [stdout] 4968db14b257d722f47f2a7bd3f2653cd29e72991b0c794ed6007e5405946f98 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 90a6a6ec5b307d3957b96577499a4b2f72071197647f26301d2178c19726ba8a [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" "90a6a6ec5b307d3957b96577499a4b2f72071197647f26301d2178c19726ba8a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling serde v1.0.102 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking dtoa v0.4.4 [INFO] [stderr] Checking dotenv v0.15.0 [INFO] [stderr] Checking yaml-rust v0.4.3 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Compiling proc-macro-error v0.2.6 [INFO] [stderr] Compiling serde_derive v1.0.102 [INFO] [stderr] Compiling structopt-derive v0.3.4 [INFO] [stderr] Checking structopt v0.3.4 [INFO] [stderr] Checking serde_yaml v0.8.11 [INFO] [stderr] Checking podcomp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/prelude.rs:15:43 [INFO] [stdout] | [INFO] [stdout] 15 | T: Deserialize<'de> + FromStr, [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] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/prelude.rs:27:47 [INFO] [stdout] | [INFO] [stdout] 27 | T: Deserialize<'de> + FromStr, [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] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/compose.rs:58:16 [INFO] [stdout] | [INFO] [stdout] 58 | type Err = !; [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 import: `std::collections::HashMap` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `DeserializeOwned` [INFO] [stdout] --> src/prelude.rs:6:37 [INFO] [stdout] | [INFO] [stdout] 6 | use serde::de::{MapAccess, Visitor, DeserializeOwned}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserializer`, `Serialize` [INFO] [stdout] --> src/compose.rs:3:26 [INFO] [stdout] | [INFO] [stdout] 3 | use serde::{Deserialize, Serialize, Deserializer}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/cmds/util.rs:12:80 [INFO] [stdout] | [INFO] [stdout] 12 | fn run(compose: Compose, global: GlobalOpts, opts: Self) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/cmds/util.rs:25:80 [INFO] [stdout] | [INFO] [stdout] 25 | fn run(compose: Compose, global: GlobalOpts, opts: Self) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/cmds/util.rs:41:80 [INFO] [stdout] | [INFO] [stdout] 41 | fn run(compose: Compose, global: GlobalOpts, opts: Self) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/prelude.rs:15:43 [INFO] [stdout] | [INFO] [stdout] 15 | T: Deserialize<'de> + FromStr, [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] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/prelude.rs:27:47 [INFO] [stdout] | [INFO] [stdout] 27 | T: Deserialize<'de> + FromStr, [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] error[E0658]: the `!` type is experimental [INFO] [stdout] --> src/compose.rs:58:16 [INFO] [stdout] | [INFO] [stdout] 58 | type Err = !; [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 import: `std::collections::HashMap` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `DeserializeOwned` [INFO] [stdout] --> src/prelude.rs:6:37 [INFO] [stdout] | [INFO] [stdout] 6 | use serde::de::{MapAccess, Visitor, DeserializeOwned}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserializer`, `Serialize` [INFO] [stdout] --> src/compose.rs:3:26 [INFO] [stdout] | [INFO] [stdout] 3 | use serde::{Deserialize, Serialize, Deserializer}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/cmds/util.rs:12:80 [INFO] [stdout] | [INFO] [stdout] 12 | fn run(compose: Compose, global: GlobalOpts, opts: Self) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/cmds/util.rs:25:80 [INFO] [stdout] | [INFO] [stdout] 25 | fn run(compose: Compose, global: GlobalOpts, opts: Self) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/cmds/util.rs:41:80 [INFO] [stdout] | [INFO] [stdout] 41 | fn run(compose: Compose, global: GlobalOpts, opts: Self) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 6 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 `podcomp` [INFO] [stderr] [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 3 previous errors; 6 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" "90a6a6ec5b307d3957b96577499a4b2f72071197647f26301d2178c19726ba8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90a6a6ec5b307d3957b96577499a4b2f72071197647f26301d2178c19726ba8a", kill_on_drop: false }` [INFO] [stdout] 90a6a6ec5b307d3957b96577499a4b2f72071197647f26301d2178c19726ba8a