[INFO] fetching crate pfmt 0.4.0...
[INFO] checking pfmt-0.4.0 against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] extracting crate pfmt 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pfmt 0.4.0 on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pfmt 0.4.0
[INFO] finished tweaking crates.io crate pfmt 0.4.0
[INFO] tweaked toml for crates.io crate pfmt 0.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29c6a93c69dd4d082908171efdbabea5008a94d5d619e796b9cbaf1721aa2dac
[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" "29c6a93c69dd4d082908171efdbabea5008a94d5d619e796b9cbaf1721aa2dac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29c6a93c69dd4d082908171efdbabea5008a94d5d619e796b9cbaf1721aa2dac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c6a93c69dd4d082908171efdbabea5008a94d5d619e796b9cbaf1721aa2dac", kill_on_drop: false }`
[INFO] [stdout] 29c6a93c69dd4d082908171efdbabea5008a94d5d619e796b9cbaf1721aa2dac
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 605d3114c7a8fe2f6a5efadb5cd381f18e7be8f75c7e437d11e1e7f8a171a726
[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" "605d3114c7a8fe2f6a5efadb5cd381f18e7be8f75c7e437d11e1e7f8a171a726", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking galvanic-test v0.1.5
[INFO] [stderr]     Checking galvanic-assert v0.8.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking pfmt v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1590:28
[INFO] [stdout]      |
[INFO] [stdout] 1590 |             let a: Vec<Box<Fmt>> = vec![Box::new(-1), Box::new(-2)];
[INFO] [stdout]      |                            ^^^ help: use `dyn`: `dyn Fmt`
[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:1591:28
[INFO] [stdout]      |
[INFO] [stdout] 1591 |             let b: Vec<Box<Fmt>> = (0..10_i32).map(|i| Box::new(i) as Box<Fmt>).collect();
[INFO] [stdout]      |                            ^^^ help: use `dyn`: `dyn Fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1591:75
[INFO] [stdout]      |
[INFO] [stdout] 1591 |             let b: Vec<Box<Fmt>> = (0..10_i32).map(|i| Box::new(i) as Box<Fmt>).collect();
[INFO] [stdout]      |                                                                           ^^^ help: use `dyn`: `dyn Fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1597:28
[INFO] [stdout]      |
[INFO] [stdout] 1597 |             let a: Vec<Box<Fmt>> = vec![Box::new(1)];
[INFO] [stdout]      |                            ^^^ help: use `dyn`: `dyn Fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1598:28
[INFO] [stdout]      |
[INFO] [stdout] 1598 |             let b: Vec<Box<Fmt>> = vec![Box::new(10)];
[INFO] [stdout]      |                            ^^^ help: use `dyn`: `dyn Fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.56s
[INFO] running `Command { std: "docker" "inspect" "605d3114c7a8fe2f6a5efadb5cd381f18e7be8f75c7e437d11e1e7f8a171a726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "605d3114c7a8fe2f6a5efadb5cd381f18e7be8f75c7e437d11e1e7f8a171a726", kill_on_drop: false }`
[INFO] [stdout] 605d3114c7a8fe2f6a5efadb5cd381f18e7be8f75c7e437d11e1e7f8a171a726