[INFO] fetching crate cargo-msrv 0.4.0...
[INFO] checking cargo-msrv-0.4.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate cargo-msrv 0.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cargo-msrv 0.4.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-msrv 0.4.0
[INFO] finished tweaking crates.io crate cargo-msrv 0.4.0
[INFO] tweaked toml for crates.io crate cargo-msrv 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate cargo-msrv 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.72
[INFO] [stderr]   Downloaded const_fn v0.4.6
[INFO] [stderr]   Downloaded wildmatch v1.1.0
[INFO] [stderr]   Downloaded attohttpc v0.17.0
[INFO] [stderr]   Downloaded base-x v0.2.8
[INFO] [stderr]   Downloaded security-framework-sys v2.1.1
[INFO] [stderr]   Downloaded time-macros-impl v0.1.1
[INFO] [stderr]   Downloaded rusoto_credential v0.46.0
[INFO] [stderr]   Downloaded futures-executor v0.3.13
[INFO] [stderr]   Downloaded security-framework v2.1.2
[INFO] [stderr]   Downloaded parameterized v0.3.1
[INFO] [stderr]   Downloaded libc v0.2.88
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.72
[INFO] [stderr]   Downloaded sha2 v0.9.3
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.72
[INFO] [stderr]   Downloaded standback v0.2.17
[INFO] [stderr]   Downloaded time-macros v0.1.1
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.72
[INFO] [stderr]   Downloaded time v0.2.25
[INFO] [stderr]   Downloaded rusoto_signature v0.46.0
[INFO] [stderr]   Downloaded rusoto_core v0.46.0
[INFO] [stderr]   Downloaded rusoto_s3 v0.46.0
[INFO] [stderr]   Downloaded cpuid-bool v0.1.2
[INFO] [stderr]   Downloaded syn v1.0.62
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.72
[INFO] [stderr]   Downloaded futures v0.3.13
[INFO] [stderr]   Downloaded parameterized-macro v0.3.1
[INFO] [stderr]   Downloaded rust-releases v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e4fe4bc56e356a814aa9d4ce1fd03aae51b3167983e956aaa33f69aeeabf349
[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" "3e4fe4bc56e356a814aa9d4ce1fd03aae51b3167983e956aaa33f69aeeabf349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e4fe4bc56e356a814aa9d4ce1fd03aae51b3167983e956aaa33f69aeeabf349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4fe4bc56e356a814aa9d4ce1fd03aae51b3167983e956aaa33f69aeeabf349", kill_on_drop: false }`
[INFO] [stdout] 3e4fe4bc56e356a814aa9d4ce1fd03aae51b3167983e956aaa33f69aeeabf349
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c65182d9685234c75d6322fc6bf9057a4574a7bbfff6c97a71b7ce8b911b2fd9
[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" "c65182d9685234c75d6322fc6bf9057a4574a7bbfff6c97a71b7ce8b911b2fd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling httparse v1.3.6
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling const_fn v0.4.6
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking wildmatch v1.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling rusoto_core v0.46.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking attohttpc v0.17.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling parameterized-macro v0.3.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking parameterized v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking pin-project v1.0.6
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking hyper v0.14.5
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking rusoto_credential v0.46.0
[INFO] [stderr]     Checking rusoto_signature v0.46.0
[INFO] [stderr]     Checking rusoto_s3 v0.46.0
[INFO] [stderr]     Checking rust-releases v0.14.0
[INFO] [stderr]     Checking cargo-msrv v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.80s
[INFO] running `Command { std: "docker" "inspect" "c65182d9685234c75d6322fc6bf9057a4574a7bbfff6c97a71b7ce8b911b2fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c65182d9685234c75d6322fc6bf9057a4574a7bbfff6c97a71b7ce8b911b2fd9", kill_on_drop: false }`
[INFO] [stdout] c65182d9685234c75d6322fc6bf9057a4574a7bbfff6c97a71b7ce8b911b2fd9