[INFO] fetching crate cargo-mutagen 0.1.2... [INFO] checking cargo-mutagen-0.1.2 against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231 [INFO] extracting crate cargo-mutagen 0.1.2 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate cargo-mutagen 0.1.2 on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate cargo-mutagen 0.1.2 [INFO] finished tweaking crates.io crate cargo-mutagen 0.1.2 [INFO] tweaked toml for crates.io crate cargo-mutagen 0.1.2 written to /workspace/builds/worker-14/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4d7c241fa1c75490939f0a45d50a225f1b4b995c3c7fd26c94c0e173b8d12299 [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" "4d7c241fa1c75490939f0a45d50a225f1b4b995c3c7fd26c94c0e173b8d12299", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4d7c241fa1c75490939f0a45d50a225f1b4b995c3c7fd26c94c0e173b8d12299", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d7c241fa1c75490939f0a45d50a225f1b4b995c3c7fd26c94c0e173b8d12299", kill_on_drop: false }` [INFO] [stdout] 4d7c241fa1c75490939f0a45d50a225f1b4b995c3c7fd26c94c0e173b8d12299 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 0a26930d110a1a4ae99ebd5309f7e49012f618b7deca383a06c9e2bdaa516f7e [INFO] running `Command { std: "docker" "start" "-a" "0a26930d110a1a4ae99ebd5309f7e49012f618b7deca383a06c9e2bdaa516f7e", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking json v0.11.15 [INFO] [stderr] Checking addr2line v0.15.2 [INFO] [stderr] Compiling backtrace v0.3.60 [INFO] [stderr] Checking wait-timeout v0.1.5 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Checking object v0.25.3 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking cargo-mutagen v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:48:31 [INFO] [stdout] | [INFO] [stdout] 48 | fn run_mutations(runner: &mut Runner, list: &[String]) -> Result<()> { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Runner` [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/main.rs:161:26 [INFO] [stdout] | [INFO] [stdout] 161 | let runner: &mut Runner = if with_coverage { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Runner` [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] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:48:31 [INFO] [stdout] | [INFO] [stdout] 48 | fn run_mutations(runner: &mut Runner, list: &[String]) -> Result<()> { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Runner` [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/main.rs:161:26 [INFO] [stdout] | [INFO] [stdout] 161 | let runner: &mut Runner = if with_coverage { [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn Runner` [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] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 24.35s [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0a26930d110a1a4ae99ebd5309f7e49012f618b7deca383a06c9e2bdaa516f7e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a26930d110a1a4ae99ebd5309f7e49012f618b7deca383a06c9e2bdaa516f7e", kill_on_drop: false }` [INFO] [stdout] 0a26930d110a1a4ae99ebd5309f7e49012f618b7deca383a06c9e2bdaa516f7e