[INFO] fetching crate clarity-jupyter-kernel 0.4.0... [INFO] checking clarity-jupyter-kernel-0.4.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863 [INFO] extracting crate clarity-jupyter-kernel 0.4.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate clarity-jupyter-kernel 0.4.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate clarity-jupyter-kernel 0.4.0 [INFO] finished tweaking crates.io crate clarity-jupyter-kernel 0.4.0 [INFO] tweaked toml for crates.io crate clarity-jupyter-kernel 0.4.0 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate clarity-jupyter-kernel 0.4.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d7a0cc679399bcf8064069c6dac780227985b3b549211f24d62e916367ac4d5d [INFO] running `Command { std: "docker" "start" "-a" "d7a0cc679399bcf8064069c6dac780227985b3b549211f24d62e916367ac4d5d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d7a0cc679399bcf8064069c6dac780227985b3b549211f24d62e916367ac4d5d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7a0cc679399bcf8064069c6dac780227985b3b549211f24d62e916367ac4d5d", kill_on_drop: false }` [INFO] [stdout] d7a0cc679399bcf8064069c6dac780227985b3b549211f24d62e916367ac4d5d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 852c1f40f0042b009dead8a906b01ee8c6f0c575ab0c888e5f7e26917f845c5e [INFO] running `Command { std: "docker" "start" "-a" "852c1f40f0042b009dead8a906b01ee8c6f0c575ab0c888e5f7e26917f845c5e", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Checking byteorder v1.4.2 [INFO] [stderr] Compiling toml v0.2.1 [INFO] [stderr] Compiling error-chain v0.10.0 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling serde v1.0.123 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Compiling serde_json v1.0.61 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Checking subtle v2.4.0 [INFO] [stderr] Checking object v0.23.0 [INFO] [stderr] Compiling zmq v0.9.2 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking pico-args v0.3.4 [INFO] [stderr] Checking json v0.11.15 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling psm v0.1.12 [INFO] [stderr] Compiling stacker v0.1.13 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling metadeps v1.1.2 [INFO] [stderr] Checking bitflags v1.2.1 [INFO] [stderr] Checking log v0.4.14 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking dirs-sys v0.3.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking miniz_oxide v0.4.3 [INFO] [stderr] Checking nix v0.18.0 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Checking dirs-next v1.0.2 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking sha2 v0.8.2 [INFO] [stderr] Checking sha3 v0.8.2 [INFO] [stderr] Checking ripemd160 v0.8.0 [INFO] [stderr] Checking hmac-drbg v0.2.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling zmq-sys v0.11.0 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Checking integer-sqrt v0.1.5 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking libsecp256k1 v0.3.5 [INFO] [stderr] Checking addr2line v0.14.1 [INFO] [stderr] Checking backtrace v0.3.56 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking serde_stacker v0.1.4 [INFO] [stderr] Checking rustyline v6.3.0 [INFO] [stderr] Checking clarity-repl v0.3.0 [INFO] [stderr] Checking clarity-jupyter-kernel v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/jupyter/core.rs:81:14 [INFO] [stdout] | [INFO] [stdout] 81 | let (mut context, outputs) = CommandContext::new()?; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/jupyter/core.rs:81:14 [INFO] [stdout] | [INFO] [stdout] 81 | let (mut context, outputs) = CommandContext::new()?; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/jupyter/core.rs:138:9 [INFO] [stdout] | [INFO] [stdout] 138 | mut context: CommandContext, [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/jupyter/core.rs:138:9 [INFO] [stdout] | [INFO] [stdout] 138 | mut context: CommandContext, [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 04s [INFO] running `Command { std: "docker" "inspect" "852c1f40f0042b009dead8a906b01ee8c6f0c575ab0c888e5f7e26917f845c5e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "852c1f40f0042b009dead8a906b01ee8c6f0c575ab0c888e5f7e26917f845c5e", kill_on_drop: false }` [INFO] [stdout] 852c1f40f0042b009dead8a906b01ee8c6f0c575ab0c888e5f7e26917f845c5e