[INFO] fetching crate showata 0.2.0...
[INFO] checking showata-0.2.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate showata 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate showata 0.2.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate showata 0.2.0
[INFO] finished tweaking crates.io crate showata 0.2.0
[INFO] tweaked toml for crates.io crate showata 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate showata 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 803c96e80f2e0799b1da0b7717069577c0045593f74471e4a4bc5f5228d68faa
[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" "803c96e80f2e0799b1da0b7717069577c0045593f74471e4a4bc5f5228d68faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "803c96e80f2e0799b1da0b7717069577c0045593f74471e4a4bc5f5228d68faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "803c96e80f2e0799b1da0b7717069577c0045593f74471e4a4bc5f5228d68faa", kill_on_drop: false }`
[INFO] [stdout] 803c96e80f2e0799b1da0b7717069577c0045593f74471e4a4bc5f5228d68faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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] 64035804adf1b5ad9d346f5ea88a1ae5f255ef70319236c4fa597e7a1467dfca
[INFO] running `Command { std: "docker" "start" "-a" "64035804adf1b5ad9d346f5ea88a1ae5f255ef70319236c4fa597e7a1467dfca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling libm v0.1.3
[INFO] [stderr]    Compiling anyhow v1.0.19
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking opener v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking showata v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking alga v0.9.2
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stdout] error[E0599]: no method named `show` found for struct `Matrix<{integer}, U3, U4, ArrayStorage<{integer}, U3, U4>>` in the current scope
[INFO] [stdout]  --> examples/sample_nalgebra.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |     m.show().unwrap();
[INFO] [stdout]   |       ^^^^ method not found in `Matrix<{integer}, U3, U4, ArrayStorage<{integer}, U3, U4>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `showata::Showable`
[INFO] [stdout]  --> examples/sample_nalgebra.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use showata::Showable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `showata`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "64035804adf1b5ad9d346f5ea88a1ae5f255ef70319236c4fa597e7a1467dfca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64035804adf1b5ad9d346f5ea88a1ae5f255ef70319236c4fa597e7a1467dfca", kill_on_drop: false }`
[INFO] [stdout] 64035804adf1b5ad9d346f5ea88a1ae5f255ef70319236c4fa597e7a1467dfca