[INFO] cloning repository https://github.com/dreamersdw/cello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dreamersdw/cello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdreamersdw%2Fcello", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdreamersdw%2Fcello'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e47aeb695d514200f8d4eb61015f686578b24ed
[INFO] checking dreamersdw/cello against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdreamersdw%2Fcello" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dreamersdw/cello on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dreamersdw/cello
[INFO] finished tweaking git repo https://github.com/dreamersdw/cello
[INFO] tweaked toml for git repo https://github.com/dreamersdw/cello written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/dreamersdw/cello already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1723c86c71e54c1e1f5cfd0e6ba64c0d5025156a3f445a3ed054d13f07993a9
[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" "c1723c86c71e54c1e1f5cfd0e6ba64c0d5025156a3f445a3ed054d13f07993a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1723c86c71e54c1e1f5cfd0e6ba64c0d5025156a3f445a3ed054d13f07993a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1723c86c71e54c1e1f5cfd0e6ba64c0d5025156a3f445a3ed054d13f07993a9", kill_on_drop: false }`
[INFO] [stdout] c1723c86c71e54c1e1f5cfd0e6ba64c0d5025156a3f445a3ed054d13f07993a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40834aa22a85a07254651228227fd5211b5e213672ede674db4c5b37b33e739b
[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" "40834aa22a85a07254651228227fd5211b5e213672ede674db4c5b37b33e739b", kill_on_drop: false }`
[INFO] [stderr]     Checking cello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rrd.rs:257:32
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::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/rrd.rs:257:32
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::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/rrd.rs:306:16
[INFO] [stdout]     |
[INFO] [stdout] 306 |     timer: Box<Timer>,
[INFO] [stdout]     |                ^^^^^ help: use `dyn`: `dyn Timer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rrd.rs:306:16
[INFO] [stdout]     |
[INFO] [stdout] 306 |     timer: Box<Timer>,
[INFO] [stdout]     |                ^^^^^ help: use `dyn`: `dyn Timer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rrd.rs:586:26
[INFO] [stdout]     |
[INFO] [stdout] 586 | fn with_setup<F>(setup: &Fn()->(), teardown: &Fn()->(), test: F)
[INFO] [stdout]     |                          ^^^^^^^^ help: use `dyn`: `dyn Fn()->()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rrd.rs:586:47
[INFO] [stdout]     |
[INFO] [stdout] 586 | fn with_setup<F>(setup: &Fn()->(), teardown: &Fn()->(), test: F)
[INFO] [stdout]     |                                               ^^^^^^^^ help: use `dyn`: `dyn Fn()->()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rrd.rs:586:26
[INFO] [stdout]     |
[INFO] [stdout] 586 | fn with_setup<F>(setup: &Fn()->(), teardown: &Fn()->(), test: F)
[INFO] [stdout]     |                          ^^^^^^^^ help: use `dyn`: `dyn Fn()->()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rrd.rs:586:47
[INFO] [stdout]     |
[INFO] [stdout] 586 | fn with_setup<F>(setup: &Fn()->(), teardown: &Fn()->(), test: F)
[INFO] [stdout]     |                                               ^^^^^^^^ help: use `dyn`: `dyn Fn()->()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/rrd.rs:549:22
[INFO] [stdout]     |
[INFO] [stdout] 549 |     let mut val: T = mem::uninitialized();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/rrd.rs:549:22
[INFO] [stdout]     |
[INFO] [stdout] 549 |     let mut val: T = mem::uninitialized();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/rrd.rs:252:42
[INFO] [stdout]     |
[INFO] [stdout] 252 |             RRDError::Io(ref err) => err.description(),
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/rrd.rs:252:42
[INFO] [stdout]     |
[INFO] [stdout] 252 |             RRDError::Io(ref err) => err.description(),
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "40834aa22a85a07254651228227fd5211b5e213672ede674db4c5b37b33e739b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40834aa22a85a07254651228227fd5211b5e213672ede674db4c5b37b33e739b", kill_on_drop: false }`
[INFO] [stdout] 40834aa22a85a07254651228227fd5211b5e213672ede674db4c5b37b33e739b