[INFO] fetching crate dorset 0.1.0...
[INFO] checking dorset-0.1.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate dorset 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate dorset 0.1.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] b6359332375ffa68f8235c492ac1e7391b48417a2f4b5816ebbd53b9151b8690
[INFO] running `Command { std: "docker" "start" "-a" "b6359332375ffa68f8235c492ac1e7391b48417a2f4b5816ebbd53b9151b8690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6359332375ffa68f8235c492ac1e7391b48417a2f4b5816ebbd53b9151b8690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6359332375ffa68f8235c492ac1e7391b48417a2f4b5816ebbd53b9151b8690", kill_on_drop: false }`
[INFO] [stdout] b6359332375ffa68f8235c492ac1e7391b48417a2f4b5816ebbd53b9151b8690
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d9d868b6e6d8b73ee842d226ba97fe0e6fb05923df73541d60f21b114c32a05
[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" "5d9d868b6e6d8b73ee842d226ba97fe0e6fb05923df73541d60f21b114c32a05", 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 4.88s
[INFO] running `Command { std: "docker" "inspect" "5d9d868b6e6d8b73ee842d226ba97fe0e6fb05923df73541d60f21b114c32a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d9d868b6e6d8b73ee842d226ba97fe0e6fb05923df73541d60f21b114c32a05", kill_on_drop: false }`
[INFO] [stdout] 5d9d868b6e6d8b73ee842d226ba97fe0e6fb05923df73541d60f21b114c32a05