[INFO] fetching crate dorset 0.1.0...
[INFO] checking dorset-0.1.0 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate dorset 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate dorset 0.1.0 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dorset 0.1.0
[INFO] finished tweaking crates.io crate dorset 0.1.0
[INFO] tweaked toml for crates.io crate dorset 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", 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] 65c19dc1b38ae0d3a051e89a3667f0ad112252754e171b236cbe176dc819b36f
[INFO] running `Command { std: "docker" "start" "-a" "65c19dc1b38ae0d3a051e89a3667f0ad112252754e171b236cbe176dc819b36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65c19dc1b38ae0d3a051e89a3667f0ad112252754e171b236cbe176dc819b36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65c19dc1b38ae0d3a051e89a3667f0ad112252754e171b236cbe176dc819b36f", kill_on_drop: false }`
[INFO] [stdout] 65c19dc1b38ae0d3a051e89a3667f0ad112252754e171b236cbe176dc819b36f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] 84ab231b980b794dd748e4baf5f92222b76a33ff15f25b5f38145cda656c0ace
[INFO] running `Command { std: "docker" "start" "-a" "84ab231b980b794dd748e4baf5f92222b76a33ff15f25b5f38145cda656c0ace", kill_on_drop: false }`
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking float-cmp v0.3.0
[INFO] [stderr]     Checking dorset v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/vari.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 |     chain_op: Box<Fn(&Vari)>,
[INFO] [stdout]    |                   ^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vari)`
[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/core/vari.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 |         op: Box<Fn(&Vari)>,
[INFO] [stdout]    |                 ^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vari)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/chainable.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 |     var_stack_: Vec<Box<Chainable + 'a>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Chainable + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/chainable.rs:21:35
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(var_stack: Vec<Box<Chainable + 'a>>) -> ChainableStackStorage<'a> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Chainable + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/chainable.rs:27:40
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn stack(&'a self) -> &Vec<Box<Chainable + 'a>> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Chainable + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/vari.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 |     chain_op: Box<Fn(&Vari)>,
[INFO] [stdout]    |                   ^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vari)`
[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/core/vari.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 |         op: Box<Fn(&Vari)>,
[INFO] [stdout]    |                 ^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vari)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/chainable.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 |     var_stack_: Vec<Box<Chainable + 'a>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Chainable + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/chainable.rs:21:35
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(var_stack: Vec<Box<Chainable + 'a>>) -> ChainableStackStorage<'a> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Chainable + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core/chainable.rs:27:40
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn stack(&'a self) -> &Vec<Box<Chainable + 'a>> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Chainable + 'a`
[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 5.25s
[INFO] running `Command { std: "docker" "inspect" "84ab231b980b794dd748e4baf5f92222b76a33ff15f25b5f38145cda656c0ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ab231b980b794dd748e4baf5f92222b76a33ff15f25b5f38145cda656c0ace", kill_on_drop: false }`
[INFO] [stdout] 84ab231b980b794dd748e4baf5f92222b76a33ff15f25b5f38145cda656c0ace