[INFO] fetching crate dpc-rdup-du 0.2.0...
[INFO] checking dpc-rdup-du-0.2.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate dpc-rdup-du 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate dpc-rdup-du 0.2.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dpc-rdup-du 0.2.0
[INFO] finished tweaking crates.io crate dpc-rdup-du 0.2.0
[INFO] tweaked toml for crates.io crate dpc-rdup-du 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 767c70e73a48307e4ab6280e4f42eeca9a2e3f5bf5c49ba78e85592fdbe9b576
[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" "767c70e73a48307e4ab6280e4f42eeca9a2e3f5bf5c49ba78e85592fdbe9b576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "767c70e73a48307e4ab6280e4f42eeca9a2e3f5bf5c49ba78e85592fdbe9b576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "767c70e73a48307e4ab6280e4f42eeca9a2e3f5bf5c49ba78e85592fdbe9b576", kill_on_drop: false }`
[INFO] [stdout] 767c70e73a48307e4ab6280e4f42eeca9a2e3f5bf5c49ba78e85592fdbe9b576
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03dfc239163ba854db61391e4ea030eb2a6ee5e460c3129063f004be87b76268
[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" "03dfc239163ba854db61391e4ea030eb2a6ee5e460c3129063f004be87b76268", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking dpc-rdup-du v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:95:24
[INFO] [stdout]    |
[INFO] [stdout] 95 |               cb: &mut FnMut(&Path),
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Path)`
[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/main.rs:96:29
[INFO] [stdout]    |
[INFO] [stdout] 96 |               mut err: &mut FnMut(&Path, io::Error)) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Path, io::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:95:24
[INFO] [stdout]    |
[INFO] [stdout] 95 |               cb: &mut FnMut(&Path),
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Path)`
[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/main.rs:96:29
[INFO] [stdout]    |
[INFO] [stdout] 96 |               mut err: &mut FnMut(&Path, io::Error)) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Path, io::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:96:15
[INFO] [stdout]    |
[INFO] [stdout] 96 |               mut err: &mut FnMut(&Path, io::Error)) {
[INFO] [stdout]    |               ----^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:96:15
[INFO] [stdout]    |
[INFO] [stdout] 96 |               mut err: &mut FnMut(&Path, io::Error)) {
[INFO] [stdout]    |               ----^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.23s
[INFO] running `Command { std: "docker" "inspect" "03dfc239163ba854db61391e4ea030eb2a6ee5e460c3129063f004be87b76268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03dfc239163ba854db61391e4ea030eb2a6ee5e460c3129063f004be87b76268", kill_on_drop: false }`
[INFO] [stdout] 03dfc239163ba854db61391e4ea030eb2a6ee5e460c3129063f004be87b76268