[INFO] cloning repository https://github.com/CleverCloud/metrics-spec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CleverCloud/metrics-spec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCleverCloud%2Fmetrics-spec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCleverCloud%2Fmetrics-spec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9af982eb50f36328da9541ad7123e53019815c56
[INFO] testing CleverCloud/metrics-spec against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCleverCloud%2Fmetrics-spec" "/workspace/builds/worker-115/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-115/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CleverCloud/metrics-spec on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CleverCloud/metrics-spec
[INFO] finished tweaking git repo https://github.com/CleverCloud/metrics-spec
[INFO] tweaked toml for git repo https://github.com/CleverCloud/metrics-spec written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate git repo https://github.com/CleverCloud/metrics-spec already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56dca78b44851f789bb80e9efed966ce711f938b87ea374a82a6a33bf1eda9c1
[INFO] running `Command { std: "docker" "start" "-a" "56dca78b44851f789bb80e9efed966ce711f938b87ea374a82a6a33bf1eda9c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56dca78b44851f789bb80e9efed966ce711f938b87ea374a82a6a33bf1eda9c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56dca78b44851f789bb80e9efed966ce711f938b87ea374a82a6a33bf1eda9c1", kill_on_drop: false }`
[INFO] [stdout] 56dca78b44851f789bb80e9efed966ce711f938b87ea374a82a6a33bf1eda9c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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=warn" "-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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 328aeaaa00cfc7625612a2f07bd4cee4a86ae483eae7cdf462705b5ca78c148f
[INFO] running `Command { std: "docker" "start" "-a" "328aeaaa00cfc7625612a2f07bd4cee4a86ae483eae7cdf462705b5ca78c148f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling num-traits v0.1.42
[INFO] [stderr]    Compiling linked-hash-map v0.5.0
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling yaml-rust v0.4.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling clap v2.29.2
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling regex v0.2.5
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]    Compiling structopt v0.1.6
[INFO] [stderr]    Compiling toml v0.4.5
[INFO] [stderr]    Compiling serde_yaml v0.7.3
[INFO] [stderr]    Compiling serde_json v1.0.9
[INFO] [stderr]    Compiling stdweb v0.3.0
[INFO] [stderr]    Compiling metrics_lib v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> lib/src/lib.rs:84:58
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn parse_aggregate_str(s: &str) -> Result<Aggregate, 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]   --> lib/src/lib.rs:86:35
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let res_op: Result<AggOp, Box<Error>> = match elems.next() {
[INFO] [stdout]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[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 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]    --> lib/src/lib.rs:162:48
[INFO] [stdout]     |
[INFO] [stdout] 162 | fn parse_with_unit(s: &str) -> Result<i64, Box<Error>> {
[INFO] [stdout]     |                                                ^^^^^ help: use `dyn`: `dyn Error`
[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 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]    --> lib/src/lib.rs:164:45
[INFO] [stdout]     |
[INFO] [stdout] 164 |     let result: Result<regex::Captures, Box<Error>> = re.captures(s).ok_or("Missing number".into());
[INFO] [stdout]     |                                             ^^^^^ help: use `dyn`: `dyn Error`
[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 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]    --> lib/src/lib.rs:206:56
[INFO] [stdout]     |
[INFO] [stdout] 206 | fn parse_next_int(os: Option<&str>) -> Result<i64, Box<Error>> {
[INFO] [stdout]     |                                                        ^^^^^ help: use `dyn`: `dyn Error`
[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 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]    --> lib/src/lib.rs:216:58
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn parse_transform_str(s: &str) -> Result<Transform, Box<Error>> {
[INFO] [stdout]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[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 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]    --> lib/src/lib.rs:320:58
[INFO] [stdout]     |
[INFO] [stdout] 320 | pub fn parse_toml(contents: &str) -> Result<Metrics, Box<Error>> {
[INFO] [stdout]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[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 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]    --> lib/src/lib.rs:325:58
[INFO] [stdout]     |
[INFO] [stdout] 325 | pub fn parse_yaml(contents: &str) -> Result<Metrics, Box<Error>> {
[INFO] [stdout]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[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 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]    --> lib/src/lib.rs:330:63
[INFO] [stdout]     |
[INFO] [stdout] 330 | pub fn generate_toml(metrics: &Metrics) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[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 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]    --> lib/src/lib.rs:335:63
[INFO] [stdout]     |
[INFO] [stdout] 335 | pub fn generate_yaml(metrics: &Metrics) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling metrics-cli v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> cli/src/bin/metrics.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 |     type Err = Box<std::error::Error>;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[WARN] too much data in the log, truncating it
