[INFO] fetching crate trappo 0.1.0...
[INFO] checking trappo-0.1.0 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate trappo 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate trappo 0.1.0 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trappo 0.1.0
[INFO] finished tweaking crates.io crate trappo 0.1.0
[INFO] tweaked toml for crates.io crate trappo 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_edit v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbdf4dbc684f67d0204f6e2ef044758645cf1c971aca0e6db43876db82d9163e
[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" "fbdf4dbc684f67d0204f6e2ef044758645cf1c971aca0e6db43876db82d9163e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbdf4dbc684f67d0204f6e2ef044758645cf1c971aca0e6db43876db82d9163e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbdf4dbc684f67d0204f6e2ef044758645cf1c971aca0e6db43876db82d9163e", kill_on_drop: false }`
[INFO] [stdout] fbdf4dbc684f67d0204f6e2ef044758645cf1c971aca0e6db43876db82d9163e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e997250130ce296c7a158643d60247f48b162b45c1d3d81fe0163d5b86f9520c
[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" "e997250130ce296c7a158643d60247f48b162b45c1d3d81fe0163d5b86f9520c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking toml_edit v0.1.5
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stderr]     Checking trappo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/recipe/mod.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub steps: Vec<Box<Step>>,
[INFO] [stdout]   |                        ^^^^ help: use `dyn`: `dyn Step`
[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/recipe/mod.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub rollback_steps: Vec<Box<Step>>
[INFO] [stdout]    |                                 ^^^^ help: use `dyn`: `dyn Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/recipe/mod.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub steps: Vec<Box<Step>>,
[INFO] [stdout]   |                        ^^^^ help: use `dyn`: `dyn Step`
[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/recipe/mod.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub rollback_steps: Vec<Box<Step>>
[INFO] [stdout]    |                                 ^^^^ help: use `dyn`: `dyn Step`
[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/lib.rs:34:46
[INFO] [stdout]    |
[INFO] [stdout] 34 |             eprintln!("error: {:?}", message.description());
[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/lib.rs:34:46
[INFO] [stdout]    |
[INFO] [stdout] 34 |             eprintln!("error: {:?}", message.description());
[INFO] [stdout]    |                                              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/cmd.rs:71:38
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let vector: Vec<String> = stdout.trim_right().split("\n").map(|x| String::from(x)).collect();
[INFO] [stdout]    |                                      ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/cmd.rs:71:38
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let vector: Vec<String> = stdout.trim_right().split("\n").map(|x| String::from(x)).collect();
[INFO] [stdout]    |                                      ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.09s
[INFO] running `Command { std: "docker" "inspect" "e997250130ce296c7a158643d60247f48b162b45c1d3d81fe0163d5b86f9520c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e997250130ce296c7a158643d60247f48b162b45c1d3d81fe0163d5b86f9520c", kill_on_drop: false }`
[INFO] [stdout] e997250130ce296c7a158643d60247f48b162b45c1d3d81fe0163d5b86f9520c