[INFO] fetching crate silkbag 0.0.1...
[INFO] checking silkbag-0.0.1 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate silkbag 0.0.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate silkbag 0.0.1 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 silkbag 0.0.1
[INFO] finished tweaking crates.io crate silkbag 0.0.1
[INFO] tweaked toml for crates.io crate silkbag 0.0.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 5dd415da04ca79567e2ba6ea957b50e2e3a31d03adb09edbd1923d2331f90e76
[INFO] running `Command { std: "docker" "start" "-a" "5dd415da04ca79567e2ba6ea957b50e2e3a31d03adb09edbd1923d2331f90e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dd415da04ca79567e2ba6ea957b50e2e3a31d03adb09edbd1923d2331f90e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dd415da04ca79567e2ba6ea957b50e2e3a31d03adb09edbd1923d2331f90e76", kill_on_drop: false }`
[INFO] [stdout] 5dd415da04ca79567e2ba6ea957b50e2e3a31d03adb09edbd1923d2331f90e76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 36d1bbf26e43ea9b72f3a05707ee4235f9ac867cf6c308efb3bad287b970da19
[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" "36d1bbf26e43ea9b72f3a05707ee4235f9ac867cf6c308efb3bad287b970da19", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking tar v0.4.32
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking imagefmt v4.0.0
[INFO] [stderr]     Checking simba v0.3.1
[INFO] [stderr]     Checking rand_distr v0.3.0
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]     Checking nalgebra v0.24.1
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking glib v0.10.3
[INFO] [stderr]     Checking silkbag v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 56s
[INFO] running `Command { std: "docker" "inspect" "36d1bbf26e43ea9b72f3a05707ee4235f9ac867cf6c308efb3bad287b970da19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d1bbf26e43ea9b72f3a05707ee4235f9ac867cf6c308efb3bad287b970da19", kill_on_drop: false }`
[INFO] [stdout] 36d1bbf26e43ea9b72f3a05707ee4235f9ac867cf6c308efb3bad287b970da19