[INFO] fetching crate tower 0.4.13...
[INFO] checking tower-0.4.13 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate tower 0.4.13 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate tower 0.4.13 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower 0.4.13
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tower 0.4.13
[INFO] tweaked toml for crates.io crate tower 0.4.13 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate tower 0.4.13 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pin-project-lite v0.2.9
[INFO] [stderr]   Downloaded sharded-slab v0.1.4
[INFO] [stderr]   Downloaded tower-test v0.4.0
[INFO] [stderr]   Downloaded itoa v1.0.2
[INFO] [stderr]   Downloaded futures-io v0.3.21
[INFO] [stderr]   Downloaded futures-macro v0.3.21
[INFO] [stderr]   Downloaded futures-executor v0.3.21
[INFO] [stderr]   Downloaded http v0.2.8
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.11
[INFO] [stderr]   Downloaded hdrhistogram v7.5.0
[INFO] [stderr]   Downloaded libc v0.2.126
[INFO] [stderr]   Downloaded tokio v1.19.2
[INFO] [stderr]   Downloaded hashbrown v0.12.1
[INFO] [stderr]   Downloaded tokio-util v0.7.3
[INFO] [stderr]   Downloaded futures-util v0.3.21
[INFO] [stderr]   Downloaded syn v1.0.96
[INFO] [stderr]   Downloaded futures v0.3.21
[INFO] [stderr]   Downloaded num-traits v0.2.15
[INFO] [stderr]   Downloaded indexmap v1.9.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.16
[INFO] [stderr]   Downloaded getrandom v0.2.7
[INFO] [stderr]   Downloaded rand_core v0.6.3
[INFO] [stderr]   Downloaded futures-channel v0.3.21
[INFO] [stderr]   Downloaded futures-task v0.3.21
[INFO] [stderr]   Downloaded pin-project-internal v1.0.10
[INFO] [stderr]   Downloaded pin-project v1.0.10
[INFO] [stderr]   Downloaded bytes v1.1.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.39
[INFO] [stderr]   Downloaded quote v1.0.18
[INFO] [stderr]   Downloaded unicode-ident v1.0.1
[INFO] [stderr]   Downloaded tokio-stream v0.1.9
[INFO] [stderr]   Downloaded tracing v0.1.35
[INFO] [stderr]   Downloaded futures-sink v0.3.21
[INFO] [stderr]   Downloaded slab v0.4.6
[INFO] [stderr]   Downloaded async-stream-impl v0.3.3
[INFO] [stderr]   Downloaded async-stream v0.3.3
[INFO] [stderr]   Downloaded futures-core v0.3.21
[INFO] [stderr]   Downloaded num_cpus v1.13.1
[INFO] [stderr]   Downloaded tokio-macros v1.8.0
[INFO] [stderr]   Downloaded tokio-test v0.4.2
[INFO] [stderr]   Downloaded tower-layer v0.3.1
[INFO] [stderr]   Downloaded thread_local v1.1.4
[INFO] [stderr]   Downloaded log v0.4.17
[INFO] [stderr]   Downloaded once_cell v1.12.0
[INFO] [stderr]   Downloaded tracing-core v0.1.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a7ecaba388a756da3a0e43c90078fece70057fb61ecd14eb11e4403a65e8b8f
[INFO] running `Command { std: "docker" "start" "-a" "1a7ecaba388a756da3a0e43c90078fece70057fb61ecd14eb11e4403a65e8b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a7ecaba388a756da3a0e43c90078fece70057fb61ecd14eb11e4403a65e8b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7ecaba388a756da3a0e43c90078fece70057fb61ecd14eb11e4403a65e8b8f", kill_on_drop: false }`
[INFO] [stdout] 1a7ecaba388a756da3a0e43c90078fece70057fb61ecd14eb11e4403a65e8b8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb939692d01ae6571d3547bb9f2080f170472bd67d5d986a846614673f45559a
[INFO] running `Command { std: "docker" "start" "-a" "eb939692d01ae6571d3547bb9f2080f170472bd67d5d986a846614673f45559a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.27
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking tower v0.4.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stdout] warning: trait `Sealed` is never used
[INFO] [stdout]    --> src/lib.rs:238:15
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub trait Sealed<T> {}
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking hdrhistogram v7.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking tokio-stream v0.1.9
[INFO] [stderr]     Checking tokio-test v0.4.2
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking tower-test v0.4.0
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stdout] warning: trait `Sealed` is never used
[INFO] [stdout]    --> src/lib.rs:238:15
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub trait Sealed<T> {}
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.86s
[INFO] running `Command { std: "docker" "inspect" "eb939692d01ae6571d3547bb9f2080f170472bd67d5d986a846614673f45559a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb939692d01ae6571d3547bb9f2080f170472bd67d5d986a846614673f45559a", kill_on_drop: false }`
[INFO] [stdout] eb939692d01ae6571d3547bb9f2080f170472bd67d5d986a846614673f45559a