[INFO] fetching crate brev 0.2.0...
[INFO] checking brev-0.2.0 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate brev 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate brev 0.2.0 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate brev 0.2.0
[INFO] finished tweaking crates.io crate brev 0.2.0
[INFO] tweaked toml for crates.io crate brev 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5638416b1f5bd2ca3fad218c995a3f4802edb71a2200604c58aebf4ed992b33
[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" "b5638416b1f5bd2ca3fad218c995a3f4802edb71a2200604c58aebf4ed992b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5638416b1f5bd2ca3fad218c995a3f4802edb71a2200604c58aebf4ed992b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5638416b1f5bd2ca3fad218c995a3f4802edb71a2200604c58aebf4ed992b33", kill_on_drop: false }`
[INFO] [stdout] b5638416b1f5bd2ca3fad218c995a3f4802edb71a2200604c58aebf4ed992b33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 958ad160f8673ca75c43167e39279be34ab1f54018f702b81fefdc92350c7aae
[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" "958ad160f8673ca75c43167e39279be34ab1f54018f702b81fefdc92350c7aae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking brev v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:178:16
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub fn say(d: &fmt::Display) {
[INFO] [stdout]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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/lib.rs:182:16
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub fn out(d: &fmt::Display) {
[INFO] [stdout]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:188:16
[INFO] [stdout]     |
[INFO] [stdout] 188 | pub fn err(d: &fmt::Display) {
[INFO] [stdout]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:194:17
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub fn warn(d: &fmt::Display) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:200:16
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub fn die(d: &fmt::Display) -> ! {
[INFO] [stdout]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:178:16
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub fn say(d: &fmt::Display) {
[INFO] [stdout]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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/lib.rs:182:16
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub fn out(d: &fmt::Display) {
[INFO] [stdout]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:188:16
[INFO] [stdout]     |
[INFO] [stdout] 188 | pub fn err(d: &fmt::Display) {
[INFO] [stdout]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:194:17
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub fn warn(d: &fmt::Display) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:200:16
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub fn die(d: &fmt::Display) -> ! {
[INFO] [stdout]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.30s
[INFO] running `Command { std: "docker" "inspect" "958ad160f8673ca75c43167e39279be34ab1f54018f702b81fefdc92350c7aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "958ad160f8673ca75c43167e39279be34ab1f54018f702b81fefdc92350c7aae", kill_on_drop: false }`
[INFO] [stdout] 958ad160f8673ca75c43167e39279be34ab1f54018f702b81fefdc92350c7aae