[INFO] fetching crate mailgun46 0.1.1...
[INFO] checking mailgun46-0.1.1 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate mailgun46 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mailgun46 0.1.1 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mailgun46 0.1.1
[INFO] finished tweaking crates.io crate mailgun46 0.1.1
[INFO] tweaked toml for crates.io crate mailgun46 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded deadpool v0.7.0
[INFO] [stderr]   Downloaded serde_qs v0.7.2
[INFO] [stderr]   Downloaded wiremock v0.5.2
[INFO] [stderr]   Downloaded textwrap v0.13.4
[INFO] [stderr]   Downloaded http-types v2.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4875e604ea83125f9d0925cf893c946e33bdc1ab62fbe51a1e442592801e9bbc
[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" "4875e604ea83125f9d0925cf893c946e33bdc1ab62fbe51a1e442592801e9bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4875e604ea83125f9d0925cf893c946e33bdc1ab62fbe51a1e442592801e9bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4875e604ea83125f9d0925cf893c946e33bdc1ab62fbe51a1e442592801e9bbc", kill_on_drop: false }`
[INFO] [stdout] 4875e604ea83125f9d0925cf893c946e33bdc1ab62fbe51a1e442592801e9bbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ac7c727587d2c0bc3e1bce2b9ae6ca609d2f900f81306fce0dc84f396f53d4c
[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" "0ac7c727587d2c0bc3e1bce2b9ae6ca609d2f900f81306fce0dc84f396f53d4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling http-types v2.11.0
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking textwrap v0.13.4
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking serde_qs v0.7.2
[INFO] [stderr]     Checking hyper v0.14.7
[INFO] [stderr]     Checking deadpool v0.7.0
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking wiremock v0.5.2
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking mailgun46 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.63s
[INFO] running `Command { std: "docker" "inspect" "0ac7c727587d2c0bc3e1bce2b9ae6ca609d2f900f81306fce0dc84f396f53d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ac7c727587d2c0bc3e1bce2b9ae6ca609d2f900f81306fce0dc84f396f53d4c", kill_on_drop: false }`
[INFO] [stdout] 0ac7c727587d2c0bc3e1bce2b9ae6ca609d2f900f81306fce0dc84f396f53d4c